WEBVTT 00:02.166 --> 00:03.033 align:left position:17.5% line:5% size:72.5% Announcer: A production of: 00:04.600 --> 00:07.566 align:left position:12.5% line:5% size:77.5% Nature Sceneis made possible in part by grants from: 00:10.000 --> 00:13.166 align:left position:15% line:83% size:75% helping sustainNature Scene for the past four years. 00:13.166 --> 00:15.333 align:left position:35% line:89% size:55% Santee Cooper 00:15.333 --> 00:18.400 align:left position:25% line:83% size:65% where protection and improvement of our environment 00:18.400 --> 00:23.166 align:left position:22.5% line:83% size:67.5% are equal in importance to providing electric energy. 00:23.166 --> 00:26.500 align:left position:22.5% line:89% size:67.5% And by viewers like you 00:26.500 --> 00:29.900 align:left position:15% line:83% size:75% members of the ETV Endowment of South Carolina. 00:33.933 --> 01:34.800 align:left position:50% line:89% size:40% ♪ 01:37.566 --> 01:39.666 align:left position:27.5% line:83% size:62.5% Jim: the Shenandoah National Park lies 01:39.666 --> 01:42.700 align:left position:12.5% line:83% size:77.5% in the heart of the Blue Ridge Mountains of Virginia. 01:42.700 --> 01:48.433 align:left position:25% line:83% size:65% Established in 1935, the park has 190,420 acres-- 01:48.433 --> 01:50.433 align:left position:22.5% line:89% size:67.5% most of it wilderness. 01:50.433 --> 01:54.233 align:left position:17.5% line:83% size:72.5% Hello, I'm Jim Welch with naturalist Rudy Mancke 01:54.233 --> 01:56.733 align:left position:40% line:83% size:50% and today we'll talk about changes 01:56.733 --> 02:00.800 align:left position:17.5% line:83% size:72.5% and the effect of man on this great range of mountains. 02:00.800 --> 02:02.800 align:left position:17.5% line:83% size:72.5% Rudy: Yeah, this is a very, very special place. 02:02.800 --> 02:05.166 align:left position:22.5% line:83% size:67.5% Usually when you think of Shenandoah National Park, 02:05.166 --> 02:07.233 align:left position:17.5% line:83% size:72.5% you think of a very diverse hardwood forest 02:07.233 --> 02:09.566 align:left position:17.5% line:5% size:72.5% and I think we'll be able, you know, to see that 02:09.566 --> 02:11.233 align:left position:22.5% line:5% size:67.5% as we walk along today. 02:11.233 --> 02:12.466 align:left position:20% line:5% size:70% The Blue Ridge Mountains are really a part 02:12.466 --> 02:14.200 align:left position:27.5% line:5% size:62.5% of the Appalachians 02:14.200 --> 02:16.133 align:left position:27.5% line:83% size:62.5% that run basically north-south, Jim. 02:16.133 --> 02:17.633 align:left position:25% line:89% size:65% So we're going to see 02:17.633 --> 02:19.166 align:left position:10% line:83% size:80% some plants that are more typical of the north 02:19.166 --> 02:20.566 align:left position:10% line:83% size:80% that have gotten down this far 02:20.566 --> 02:22.466 align:left position:10% line:83% size:80% following that chain of mountains 02:22.466 --> 02:24.633 align:left position:10% line:83% size:80% and also maybe see some from the south 02:24.633 --> 02:26.900 align:left position:10% line:83% size:80% that have made it up this distance, too. 02:26.900 --> 02:28.566 align:left position:10% line:83% size:80% Very special place, though. 02:28.566 --> 02:32.433 align:left position:10% line:83% size:80% Highest point here is a little over 4,000 feet above sea level. 02:32.433 --> 02:34.600 align:left position:10% line:83% size:80% Hawksbill Mountain is the name of it-- 02:34.600 --> 02:37.600 align:left position:10% line:83% size:80% off there in the distance, a little bit of haze there. 02:37.600 --> 02:39.600 align:left position:10% line:83% size:80% But not extremely tall mountains 02:39.600 --> 02:42.600 align:left position:10% line:83% size:80% and yet there are Northern plants that do very well here 02:42.600 --> 02:44.833 align:left position:10% line:83% size:80% that you really kind of don't expect here. 02:44.833 --> 02:48.733 align:left position:10% line:83% size:80% Basically a hardwood forest, but right over in this direction 02:48.733 --> 02:51.900 align:left position:10% line:83% size:80% you see balsam fir that's doing just as well here 02:51.900 --> 02:54.000 align:left position:10% line:83% size:80% as it is in Vermont or in Canada. 02:54.000 --> 02:55.000 align:left position:10% line:89% size:80% Not common here... 02:55.000 --> 02:56.100 align:left position:27.5% line:89% size:62.5% Jim: Cold-weather plants. 02:56.100 --> 02:58.133 align:left position:10% line:83% size:80% Rudy: Yes, not common here, but doing well 02:58.133 --> 03:00.300 align:left position:10% line:83% size:80% especially on these outcrops of rock. 03:00.300 --> 03:02.500 align:left position:10% line:83% size:80% A little more harsh environment here 03:02.500 --> 03:04.700 align:left position:10% line:83% size:80% but you see it's even got cones on it. 03:04.700 --> 03:06.800 align:left position:10% line:83% size:80% So it's settled in and reproducing. 03:06.800 --> 03:09.966 align:left position:12.5% line:77% size:77.5% And then as you look on all these cracks and crevices in the rocks 03:09.966 --> 03:11.333 align:left position:10% line:83% size:80% you see lots of little plants 03:11.333 --> 03:13.233 align:left position:10% line:83% size:80% that seem to be hugging those crevices. 03:13.233 --> 03:16.866 align:left position:10% line:83% size:80% Three-toothed cinquefoil is the common name for it-- 03:16.866 --> 03:18.233 align:left position:10% line:89% size:80% a Northern species. 03:18.233 --> 03:20.200 align:left position:10% line:83% size:80% See, it's got white flowers on it 03:20.200 --> 03:22.066 align:left position:10% line:89% size:80% three parts to the leaves 03:22.066 --> 03:26.100 align:left position:10% line:83% size:80% and three teeth on each one of those little leaflets. 03:26.100 --> 03:29.533 align:left position:10% line:83% size:80% So three-toothed cinquefoil is a common name. 03:29.533 --> 03:32.800 align:left position:10% line:83% size:80% Look at those little hiding places in the cracks. 03:32.800 --> 03:34.666 align:left position:10% line:83% size:80% And then also we've got flowering over here 03:34.666 --> 03:35.666 align:left position:10% line:89% size:80% in front of us 03:35.666 --> 03:37.866 align:left position:10% line:89% size:80% something called ninebark. 03:37.866 --> 03:40.800 align:left position:10% line:83% size:80% It gets that name because of the bark shredding off 03:40.800 --> 03:43.400 align:left position:10% line:83% size:80% in long pieces, and you see it is flowering. 03:43.400 --> 03:45.500 align:left position:10% line:89% size:80% Member of the rose family. 03:45.500 --> 03:48.233 align:left position:10% line:83% size:80% The geology here is also a good story. 03:48.233 --> 03:50.866 align:left position:10% line:83% size:80% We'll get into that as we walk along. 03:50.866 --> 03:52.000 align:left position:10% line:89% size:80% So much to see. 03:52.000 --> 03:54.366 align:left position:10% line:83% size:80% Let's head off in this direction. 03:54.366 --> 04:04.333 align:left position:10% line:89% size:80% ♪ 04:04.333 --> 04:07.766 align:left position:17.5% line:83% size:72.5% Jim: On the Appalachian Trail that runs through the park. 04:07.766 --> 04:10.866 align:left position:20% line:83% size:70% In fact, it's 95 miles of it of the 2,000 miles 04:10.866 --> 04:13.833 align:left position:30% line:83% size:60% from Spring Mountain, Georgia, to Mount Katahdin 04:13.833 --> 04:16.500 align:left position:17.5% line:83% size:72.5% go through the park and right here along the Skyline Drive. 04:16.500 --> 04:17.833 align:left position:10% line:89% size:80% Rudy: Lots of trails here 04:17.833 --> 04:20.533 align:left position:10% line:83% size:80% and it gives you good access to this national park. 04:20.533 --> 04:21.966 align:left position:10% line:83% size:80% And you remember we were talking 04:21.966 --> 04:23.866 align:left position:10% line:83% size:80% about diversity of hardwoods a moment ago. 04:23.866 --> 04:25.200 align:left position:10% line:83% size:80% This is a good place to stop 04:25.200 --> 04:27.466 align:left position:10% line:83% size:80% and just take a look at some of that diversity. 04:27.466 --> 04:31.600 align:left position:10% line:83% size:80% Here's one plant that kind of speaks of the North to me-- 04:31.600 --> 04:33.900 align:left position:10% line:83% size:80% Mountain maple is the common name for it. 04:33.900 --> 04:36.333 align:left position:10% line:83% size:80% Maple-like leaves on it pretty distinctly. 04:36.333 --> 04:38.366 align:left position:10% line:83% size:80% But look at the way the fruit is. 04:38.366 --> 04:40.566 align:left position:10% line:83% size:80% Most maples, you know, dangle down. 04:40.566 --> 04:41.933 align:left position:42.5% line:89% size:47.5% Jim: This grows up. 04:41.933 --> 04:45.933 align:left position:10% line:83% size:80% Rudy: The fruit actually is up on a little bit of a spike. 04:45.933 --> 04:48.166 align:left position:10% line:83% size:80% And, of course, the flowers are up there, too. 04:48.166 --> 04:49.933 align:left position:10% line:83% size:80% Early fruit forming on it right now. 04:49.933 --> 04:51.500 align:left position:10% line:83% size:80% Good diversity of maples here. 04:51.500 --> 04:54.466 align:left position:10% line:83% size:80% Right behind it, striped maple 04:54.466 --> 04:57.600 align:left position:10% line:83% size:80% or moosewood is another name for that maple. 04:57.600 --> 04:59.033 align:left position:10% line:89% size:80% Larger leaves on it. 04:59.033 --> 05:01.866 align:left position:10% line:83% size:80% And the young... The bark of the young trees are striped 05:01.866 --> 05:03.200 align:left position:10% line:89% size:80% so the name striped maple. 05:03.200 --> 05:05.166 align:left position:10% line:89% size:80% But there's the fruit now 05:05.166 --> 05:09.433 align:left position:10% line:83% size:80% hanging down like you would expect maple, you know, fruit 05:09.433 --> 05:10.900 align:left position:10% line:89% size:80% to be hanging down. 05:10.900 --> 05:12.666 align:left position:67.5% line:89% size:22.5% Jim: Hmm. 05:12.666 --> 05:13.966 align:left position:10% line:83% size:80% Rudy: Diversity of hardwoods here. 05:13.966 --> 05:15.966 align:left position:10% line:83% size:80% I also see... Look at the basswood up there. 05:15.966 --> 05:19.633 align:left position:10% line:83% size:80% Big, big leaves, and then those strange flowers 05:19.633 --> 05:22.633 align:left position:10% line:83% size:80% that seem attached to a modified leaf. 05:22.633 --> 05:23.966 align:left position:10% line:83% size:80% That's a bract, it's called. 05:23.966 --> 05:25.300 align:left position:12.5% line:83% size:77.5% And those are early flowers. 05:25.300 --> 05:27.433 align:left position:10% line:83% size:80% I guess they really haven't opened quite yet. 05:27.433 --> 05:29.700 align:left position:10% line:83% size:80% Bee tree is another name for that, Jim 05:29.700 --> 05:33.033 align:left position:10% line:83% size:80% because when the flowers open, they're very, very fragrant 05:33.033 --> 05:34.800 align:left position:10% line:83% size:80% and lots of bees come and go. 05:34.800 --> 05:37.833 align:left position:10% line:83% size:80% Linden tree is another name for it-- tilia. 05:37.833 --> 05:39.233 align:left position:40% line:83% size:50% Jim: Great diversity of hardwoods. 05:39.233 --> 05:41.133 align:left position:10% line:83% size:80% Rudy: Any way you look, really, up or down... 05:41.133 --> 05:42.800 align:left position:10% line:83% size:80% I was just noticing over here-- 05:42.800 --> 05:45.966 align:left position:10% line:83% size:80% look at the little cluster of trees-- the witch hazel. 05:45.966 --> 05:47.533 align:left position:10% line:89% size:80% And that's one 05:47.533 --> 05:50.133 align:left position:10% line:83% size:80% that I think a lot of people are very familiar with the name. 05:50.133 --> 05:52.600 align:left position:10% line:83% size:80% Jim: You get the astringent from it to use for household use. 05:52.600 --> 05:53.633 align:left position:10% line:89% size:80% Rudy: That's right. 05:53.633 --> 05:55.300 align:left position:10% line:83% size:80% This is an interesting one, too. 05:55.300 --> 05:56.366 align:left position:10% line:89% size:80% See the fruit on it? 05:56.366 --> 05:58.366 align:left position:10% line:83% size:80% these things flower in October. 05:58.366 --> 06:01.633 align:left position:10% line:83% size:80% and this is really last year's fruit, so to speak. 06:01.633 --> 06:04.033 align:left position:10% line:83% size:80% And it'll eventually dry out and open 06:04.033 --> 06:06.233 align:left position:10% line:83% size:80% and throw seed all over the place. 06:06.233 --> 06:07.733 align:left position:10% line:89% size:80% And look on the leaves. 06:07.733 --> 06:10.666 align:left position:10% line:83% size:80% It almost looks like there's fruit on the leaf 06:10.666 --> 06:12.000 align:left position:10% line:89% size:80% which that can't be. 06:12.000 --> 06:14.166 align:left position:10% line:83% size:80% Looks like a little dunce cap sticking up there. 06:14.166 --> 06:15.766 align:left position:40% line:83% size:50% Jim: That's a growth of some kind? 06:15.766 --> 06:16.900 align:left position:10% line:89% size:80% Rudy: Those are galls 06:16.900 --> 06:18.966 align:left position:10% line:83% size:80% caused by a little aphid-like animal 06:18.966 --> 06:21.633 align:left position:10% line:83% size:80% and specifically zeroing in on witch hazel. 06:21.633 --> 06:23.266 align:left position:50% line:77% size:40% Jim: Some color down below here. 06:23.266 --> 06:25.333 align:left position:10% line:83% size:80% Rudy: Yeah, and again, colorful flowers. 06:25.333 --> 06:28.866 align:left position:10% line:83% size:80% We're going to see a lot of them, I hope, as we walk today. 06:28.866 --> 06:31.300 align:left position:10% line:89% size:80% That's the wild columbine. 06:31.300 --> 06:33.000 align:left position:10% line:89% size:80% Isn't that pretty? 06:33.000 --> 06:34.700 align:left position:10% line:89% size:80% Really nice hanging down 06:34.700 --> 06:38.266 align:left position:10% line:83% size:80% the flowers hanging down, in the buttercup family. 06:38.266 --> 06:41.200 align:left position:10% line:83% size:80% And then look at the mass of ferns 06:41.200 --> 06:46.133 align:left position:10% line:83% size:80% looks like hay-scented ferns there behind it-- really nice. 06:46.133 --> 06:48.333 align:left position:10% line:83% size:80% Another plant here, too, while we're looking. 06:48.333 --> 06:49.566 align:left position:10% line:89% size:80% Look at the fruit on it. 06:49.566 --> 06:51.300 align:left position:10% line:83% size:80% It's right against the leaf there. 06:51.300 --> 06:53.266 align:left position:10% line:89% size:80% Looks almost like hops. 06:53.266 --> 06:55.333 align:left position:10% line:89% size:80% That's one of the hornbeams 06:55.333 --> 06:57.766 align:left position:10% line:83% size:80% that gets the name hop hornbeam-- 06:57.766 --> 06:59.133 align:left position:10% line:89% size:80% Ostrya Virginiana. 06:59.133 --> 07:00.433 align:left position:10% line:89% size:80% We're in Virginia. 07:00.433 --> 07:03.400 align:left position:10% line:83% size:80% So there were many plants first described 07:03.400 --> 07:06.100 align:left position:10% line:83% size:80% from this part of the united states. 07:06.100 --> 07:07.200 align:left position:10% line:89% size:80% Hop hornbeam. 07:07.200 --> 07:09.000 align:left position:32.5% line:83% size:57.5% Jim: Different from the American hornbeam? 07:09.000 --> 07:10.800 align:left position:10% line:83% size:80% Rudy: Different from the American hornbeam 07:10.800 --> 07:13.800 align:left position:10% line:83% size:80% even a different genus, but both called hornbeams. 07:13.800 --> 07:16.766 align:left position:10% line:83% size:80% I notice something else just as I turn. 07:16.766 --> 07:17.833 align:left position:67.5% line:83% size:22.5% Jim: Beautiful. 07:17.833 --> 07:19.500 align:left position:10% line:83% size:80% Rudy: Talk about beautiful flowers. 07:19.500 --> 07:23.000 align:left position:12.5% line:83% size:77.5% There's one of the orchid-- large purple-fringed orchid. 07:23.000 --> 07:24.500 align:left position:10% line:89% size:80% Isn't that gorgeous? 07:24.500 --> 07:27.333 align:left position:10% line:83% size:80% And look at... Look at the lower lip on that thing. 07:27.333 --> 07:29.566 align:left position:10% line:83% size:80% It's divided, really, into three parts 07:29.566 --> 07:31.933 align:left position:10% line:83% size:80% and you can see that beautiful fringing. 07:31.933 --> 07:33.966 align:left position:10% line:83% size:80% Orchids are always amazing plants 07:33.966 --> 07:36.700 align:left position:10% line:83% size:80% really a pretty widespread family of plants. 07:36.700 --> 07:38.766 align:left position:15% line:83% size:75% Jim: This is the time of year, Rudy, you'd see it? 07:38.766 --> 07:40.366 align:left position:10% line:83% size:80% Rudy: That's the time of year you see it 07:40.366 --> 07:43.400 align:left position:10% line:83% size:80% and oftentimes along moist, sort of sloping hillsides like this. 07:43.400 --> 07:44.700 align:left position:10% line:89% size:80% And that's what we've got. 07:44.700 --> 07:46.400 align:left position:10% line:83% size:80% Lot of rock sticking out here. 07:46.400 --> 07:48.266 align:left position:10% line:83% size:80% Look at the lichens that have come 07:48.266 --> 07:50.066 align:left position:10% line:83% size:80% and kind of taken over the rock. 07:50.066 --> 07:54.200 align:left position:22.5% line:83% size:67.5% Jim: Chunks of, um, granite or volcanic-like rock. 07:54.200 --> 07:56.200 align:left position:10% line:83% size:80% Rudy: Well, this is volcanic material. 07:56.200 --> 07:59.100 align:left position:10% line:83% size:80% You're absolutely... Absolutely right. 07:59.100 --> 08:01.833 align:left position:10% line:83% size:80% This stuff probably was injected in 08:01.833 --> 08:03.500 align:left position:10% line:83% size:80% oh, around 570 million years ago 08:03.500 --> 08:05.400 align:left position:10% line:83% size:80% with the dates put on these things. 08:05.400 --> 08:07.800 align:left position:10% line:83% size:80% There had been a continental collision here. 08:07.800 --> 08:10.833 align:left position:10% line:83% size:80% Those mountains that were pushed up back then are gone. 08:10.833 --> 08:13.733 align:left position:10% line:83% size:80% And as continents were separating, there were big gaps 08:13.733 --> 08:16.100 align:left position:10% line:83% size:80% and this basaltic material came in. 08:16.100 --> 08:17.666 align:left position:10% line:83% size:80% And you see it came in as a liquid. 08:17.666 --> 08:19.133 align:left position:10% line:83% size:80% And look up on the hill here. 08:19.133 --> 08:22.366 align:left position:10% line:83% size:80% Actually, this stuff was squirted in not at the surface 08:22.366 --> 08:23.766 align:left position:10% line:89% size:80% but a little bit below. 08:23.766 --> 08:25.033 align:left position:10% line:89% size:80% It cooled slowly 08:25.033 --> 08:27.500 align:left position:10% line:83% size:80% and as it did... As the rock was shrinking 08:27.500 --> 08:29.766 align:left position:10% line:83% size:80% it formed columnar joints in the rock. 08:29.766 --> 08:30.866 align:left position:10% line:89% size:80% Look at that thing! 08:30.866 --> 08:32.400 align:left position:27.5% line:83% size:62.5% Jim: Column looks like it was carved out. 08:32.400 --> 08:34.500 align:left position:10% line:83% size:80% Rudy: Looks like man has come here and carved it out. 08:34.500 --> 08:36.366 align:left position:10% line:83% size:80% And, of course, the Indians that were here 08:36.366 --> 08:37.933 align:left position:12.5% line:83% size:77.5% had nothing to do with that carving. 08:37.933 --> 08:40.133 align:left position:10% line:83% size:80% That was done a long time before they were here-- 08:40.133 --> 08:42.266 align:left position:10% line:83% size:80% again, about 570 million years ago. 08:42.266 --> 08:45.366 align:left position:12.5% line:83% size:77.5% The Catoctin Formation is what the name is for this. 08:45.366 --> 08:48.533 align:left position:10% line:83% size:80% And that's a modified basalt, because it was squeezed. 08:48.533 --> 08:51.100 align:left position:10% line:83% size:80% Again, metabasalt is the common name for it. 08:51.100 --> 08:54.066 align:left position:10% line:83% size:80% That's the same kind of stuff that oozes out 08:54.066 --> 08:56.133 align:left position:10% line:83% size:80% on the Mid-Atlantic Ridge now. 08:56.133 --> 08:57.600 align:left position:25% line:89% size:65% Jim: Something to look for 08:57.600 --> 08:59.733 align:left position:20% line:83% size:70% when hiking this portion of the Appalachian Trail. 08:59.733 --> 09:01.800 align:left position:10% line:83% size:80% Rudy: Yeah, and it kind of has a greenish look to it 09:01.800 --> 09:03.133 align:left position:10% line:83% size:80% when you get the lichens away. 09:03.133 --> 09:04.933 align:left position:10% line:83% size:80% I noticed one of those lichens down here. 09:04.933 --> 09:06.166 align:left position:10% line:83% size:80% You see it's really crusty 09:06.166 --> 09:07.666 align:left position:10% line:83% size:80% almost peeling away from the rock. 09:07.666 --> 09:11.000 align:left position:10% line:83% size:80% Rock tripe is the common name for that. 09:11.000 --> 09:14.366 align:left position:10% line:83% size:80% And, you know, that's an edible lichen. 09:14.366 --> 09:17.133 align:left position:10% line:83% size:80% It looks like it wouldn't be all that delectable right now 09:17.133 --> 09:19.266 align:left position:10% line:83% size:80% but that is an edible lichen 09:19.266 --> 09:21.733 align:left position:10% line:83% size:80% doing very well on the rock here. 09:21.733 --> 09:22.733 align:left position:10% line:89% size:80% Let's head on. 09:22.733 --> 09:24.566 align:left position:10% line:83% size:80% There's plenty more to see. 09:24.566 --> 09:26.733 align:left position:10% line:89% size:80% ♪ 09:26.733 --> 09:29.666 align:left position:10% line:83% size:80% This is some more of that igneous rock 09:29.666 --> 09:32.966 align:left position:10% line:83% size:80% that was squirted in a long time ago, Jim. 09:32.966 --> 09:35.700 align:left position:10% line:83% size:80% Been changed a little bit through time 09:35.700 --> 09:38.166 align:left position:10% line:83% size:80% but basically still the same thing 09:38.166 --> 09:40.700 align:left position:10% line:83% size:80% pushed up when continents collided. 09:40.700 --> 09:43.766 align:left position:10% line:83% size:80% Push came from the east there. 09:43.766 --> 09:44.866 align:left position:10% line:89% size:80% Nice view of... 09:44.866 --> 09:47.300 align:left position:10% line:83% size:80% Look at the talus slope, it's called. 09:47.300 --> 09:50.133 align:left position:10% line:83% size:80% see the big pieces of rock weathered away? 09:50.133 --> 09:52.300 align:left position:37.5% line:83% size:52.5% Jim: Chunks of... Chunks of the greenstone? 09:52.300 --> 09:53.633 align:left position:10% line:89% size:80% Rudy: Yeah, most of it is. 09:53.633 --> 09:56.066 align:left position:10% line:83% size:80% Yeah, broken off, again, by weathering 09:56.066 --> 09:57.866 align:left position:10% line:83% size:80% and dropped to the ground. 09:57.866 --> 10:01.433 align:left position:10% line:83% size:80% Lots of animals and plants do very well on a talus slope. 10:01.433 --> 10:07.133 align:left position:10% line:83% size:80% Trees that really dominate this forest are the... the oaks. 10:07.133 --> 10:09.900 align:left position:10% line:83% size:80% We've got really two varieties that are pretty obvious there. 10:09.900 --> 10:13.233 align:left position:10% line:83% size:80% Northern red oak is really one of the most common trees 10:13.233 --> 10:14.766 align:left position:10% line:89% size:80% in the park. 10:14.766 --> 10:18.933 align:left position:10% line:83% size:80% Down there, doing fairly well, and I guess a little extra moist 10:18.933 --> 10:21.466 align:left position:10% line:83% size:80% up along the edge of the outcrop here. 10:21.466 --> 10:26.100 align:left position:10% line:83% size:80% And then chestnut oak here below us. 10:26.100 --> 10:28.233 align:left position:10% line:83% size:80% Really one of the white oak group. 10:28.233 --> 10:31.500 align:left position:10% line:83% size:80% That old red oak over there is one of the red oaks. 10:31.500 --> 10:33.500 align:left position:10% line:83% size:80% Sharp, pointed edges on the leaf. 10:33.500 --> 10:36.166 align:left position:10% line:83% size:80% Edges on the chestnut oak kind of rounded. 10:36.166 --> 10:38.266 align:left position:10% line:83% size:80% Both of them doing very well here. 10:38.266 --> 10:40.900 align:left position:10% line:83% size:80% And then right over here, mountain ash. 10:40.900 --> 10:42.800 align:left position:10% line:83% size:80% Look at that compound leaf. 10:42.800 --> 10:45.033 align:left position:10% line:83% size:80% Sort of a reddish stem on the leaf there. 10:45.033 --> 10:48.100 align:left position:10% line:83% size:80% And it looks like it's getting early fruit on it there. 10:48.100 --> 10:49.300 align:left position:10% line:83% size:80% Looks almost like an ash 10:49.300 --> 10:50.966 align:left position:10% line:83% size:80% so mountain ash is the common name 10:50.966 --> 10:54.133 align:left position:10% line:83% size:80% even though it really isn't a true ash. 10:54.133 --> 10:59.133 align:left position:10% line:83% size:80% Northern species again, coming on down the appalachians. 10:59.133 --> 11:00.600 align:left position:37.5% line:83% size:52.5% Jim: Covered up again with trees. 11:00.600 --> 11:02.533 align:left position:37.5% line:83% size:52.5% At one point all this was cut over. 11:02.533 --> 11:04.500 align:left position:10% line:83% size:80% Rudy: Yeah, there's been a lot of cutting here. 11:04.500 --> 11:06.666 align:left position:10% line:83% size:80% Man has had a major impact on the forest here. 11:06.666 --> 11:07.933 align:left position:10% line:89% size:80% Now, we were talking 11:07.933 --> 11:10.066 align:left position:10% line:83% size:80% about chestnut oak being one of the white oaks. 11:10.066 --> 11:13.266 align:left position:10% line:83% size:80% There is actually the oak known as white oak. 11:13.266 --> 11:16.933 align:left position:10% line:83% size:80% Again, smoothly rounded lobes on the leaves 11:16.933 --> 11:21.233 align:left position:10% line:83% size:80% ing best back in more of a forest-like situation. 11:21.233 --> 11:22.966 align:left position:10% line:89% size:80% And then the flowers. 11:22.966 --> 11:24.166 align:left position:10% line:89% size:80% Look at those. 11:24.166 --> 11:26.666 align:left position:10% line:89% size:80% Big petals on that rose. 11:26.666 --> 11:33.033 align:left position:10% line:77% size:80% And I believe that one is the one usually called Carolina rose. 11:33.033 --> 11:34.333 align:left position:10% line:89% size:80% And one other one-- 11:34.333 --> 11:37.100 align:left position:10% line:83% size:80% again, pretty scrubby-looking little old thing. 11:37.100 --> 11:38.500 align:left position:10% line:89% size:80% It's got flowers on it. 11:38.500 --> 11:39.933 align:left position:10% line:89% size:80% Lots of insects coming. 11:39.933 --> 11:41.400 align:left position:10% line:89% size:80% One of the sumacs. 11:41.400 --> 11:44.100 align:left position:10% line:83% size:80% Staghorn sumac is the common name. 11:44.100 --> 11:46.833 align:left position:10% line:83% size:80% If you look really carefully at the stem-- 11:46.833 --> 11:48.433 align:left position:10% line:89% size:80% look at that fuzz on it 11:48.433 --> 11:51.200 align:left position:10% line:83% size:80% that reminded someone, I guess, of the deer 11:51.200 --> 11:55.333 align:left position:10% line:83% size:80% or the stag that was in velvet with the skin on the antlers. 11:55.333 --> 11:56.500 align:left position:10% line:89% size:80% Fuzzy look 11:56.500 --> 11:58.333 align:left position:10% line:89% size:80% doing quite well. 11:58.333 --> 12:00.666 align:left position:37.5% line:83% size:52.5% Jim: 300 square miles of mountainous forest 12:00.666 --> 12:02.166 align:left position:50% line:89% size:40% within the park. 12:02.166 --> 12:03.333 align:left position:45% line:89% size:45% Hardwoods, mostly. 12:03.333 --> 12:05.300 align:left position:30% line:83% size:60% In fact, here's another one over here, Rudy. 12:05.300 --> 12:08.033 align:left position:10% line:83% size:80% Rudy: Yeah, but you know really what general group that's in. 12:08.033 --> 12:09.033 align:left position:10% line:89% size:80% Look at the leaves. 12:09.033 --> 12:10.033 align:left position:62.5% line:89% size:27.5% Jim: Aspen? 12:10.033 --> 12:12.200 align:left position:10% line:83% size:80% Rudy: Aspen-- one of the poplars. 12:12.200 --> 12:13.833 align:left position:10% line:89% size:80% Large-toothed aspen 12:13.833 --> 12:15.866 align:left position:10% line:83% size:80% or big-toothed aspen is the common name. 12:15.866 --> 12:17.366 align:left position:10% line:83% size:80% See those teeth on the edges. 12:17.366 --> 12:19.700 align:left position:10% line:83% size:80% Pretty big and then widely spaced. 12:19.700 --> 12:23.833 align:left position:10% line:83% size:80% Moving like you would expect an aspen to move. 12:23.833 --> 12:25.966 align:left position:10% line:83% size:80% Saw something else moving right in front of me. 12:25.966 --> 12:27.033 align:left position:40% line:89% size:50% Jim: A little snake! 12:27.033 --> 12:28.566 align:left position:10% line:83% size:80% Rudy: A little Northern ring-necked snake. 12:28.566 --> 12:29.933 align:left position:37.5% line:89% size:52.5% Jim: Can you get him? 12:29.933 --> 12:30.933 align:left position:10% line:89% size:80% Rudy: I think I can. 12:30.933 --> 12:32.266 align:left position:10% line:83% size:80% Not moving too fast down here. 12:32.266 --> 12:33.300 align:left position:10% line:89% size:80% Oh, yeah. 12:33.300 --> 12:34.833 align:left position:12.5% line:83% size:77.5% Quieting down fairly nicely. 12:34.833 --> 12:38.800 align:left position:10% line:83% size:80% One of the most common snakes in Shenandoah National Park. 12:38.800 --> 12:40.133 align:left position:30% line:89% size:60% Jim: You said Northern-- 12:40.133 --> 12:42.200 align:left position:22.5% line:83% size:67.5% does that differentiate him from the Southern? 12:42.200 --> 12:44.166 align:left position:10% line:83% size:80% Rudy: Yeah, there is a Southern ring-necked snake. 12:44.166 --> 12:45.533 align:left position:10% line:89% size:80% Both of them have rings. 12:45.533 --> 12:47.966 align:left position:10% line:83% size:80% The Northern one has a ring, though, that is complete 12:47.966 --> 12:49.366 align:left position:10% line:89% size:80% across the back of the neck-- 12:49.366 --> 12:51.166 align:left position:10% line:83% size:80% usually in the Southern it is broken-- 12:51.166 --> 12:53.733 align:left position:10% line:83% size:80% and real shiny sort of gray scales. 12:53.733 --> 12:56.900 align:left position:10% line:83% size:80% And then the belly is almost, on this thing 12:56.900 --> 12:58.800 align:left position:10% line:89% size:80% kind of an orange color. 12:58.800 --> 13:00.000 align:left position:10% line:89% size:80% See? 13:00.000 --> 13:02.800 align:left position:10% line:83% size:80% With no spots down the center of the belly. 13:02.800 --> 13:04.866 align:left position:10% line:83% size:80% The Southern variety would have 13:04.866 --> 13:08.100 align:left position:10% line:83% size:80% little dark half-moons on the bottom of the belly. 13:08.100 --> 13:09.466 align:left position:10% line:89% size:80% Nonpoisonous snake. 13:09.466 --> 13:11.800 align:left position:10% line:83% size:80% It feeds on salamanders and earthworms 13:11.800 --> 13:15.933 align:left position:10% line:83% size:80% and soft-bodied insects and such that it finds under rocks. 13:15.933 --> 13:17.233 align:left position:10% line:89% size:80% Very common snake here. 13:17.233 --> 13:19.766 align:left position:10% line:83% size:80% Quietens down pretty well when you get it in hand. 13:19.766 --> 13:21.266 align:left position:47.5% line:83% size:42.5% Jim: Very fragile little animal. 13:21.266 --> 13:22.500 align:left position:10% line:89% size:80% Rudy: Yeah, it is. 13:22.500 --> 13:24.533 align:left position:10% line:83% size:80% I'll put him back down here in the shade 13:24.533 --> 13:26.733 align:left position:10% line:83% size:80% and hopefully... Hopefully he'll be fine. 13:26.733 --> 13:28.700 align:left position:10% line:83% size:80% Yeah, he's crawling off up in there. 13:28.700 --> 13:30.166 align:left position:10% line:89% size:80% Often seen here. 13:30.166 --> 13:34.033 align:left position:10% line:83% size:80% Small compared to the broad views that you get here. 13:34.033 --> 13:37.900 align:left position:10% line:83% size:80% Shenandoah valley, off in the distance there. 13:37.900 --> 13:39.466 align:left position:10% line:89% size:80% Mainly limestone rocks 13:39.466 --> 13:43.000 align:left position:10% line:83% size:80% easily eroded away compared to the hard stuff in the mountains. 13:43.000 --> 13:45.000 align:left position:10% line:83% size:80% The Shenandoah river has worked it. 13:45.000 --> 13:46.533 align:left position:37.5% line:83% size:52.5% Jim: And historically speaking 13:46.533 --> 13:48.766 align:left position:42.5% line:83% size:47.5% Stonewall Jackson's men and troops came 13:48.766 --> 13:50.633 align:left position:52.5% line:83% size:37.5% up through this valley in 1862. 13:50.633 --> 13:52.100 align:left position:10% line:83% size:80% Rudy: And wooded hillsides coming down. 13:52.100 --> 13:53.400 align:left position:10% line:83% size:80% But, now, look across here. 13:53.400 --> 13:54.833 align:left position:10% line:89% size:80% Something has happened... 13:54.833 --> 13:56.366 align:left position:37.5% line:83% size:52.5% Jim: Something killed the trees. 13:56.366 --> 13:58.000 align:left position:10% line:83% size:80% Rudy: ...to those deciduous trees. 13:58.000 --> 14:00.633 align:left position:10% line:83% size:80% Well, they're not exactly dead, at least hopefully not 14:00.633 --> 14:02.200 align:left position:10% line:83% size:80% but something has defoliated. 14:02.200 --> 14:04.100 align:left position:10% line:83% size:80% There's an alien species that is here 14:04.100 --> 14:07.100 align:left position:10% line:83% size:80% that's really changing the world, the gypsy moth 14:07.100 --> 14:09.600 align:left position:10% line:83% size:80% and it's interesting to view it from here. 14:09.600 --> 14:12.300 align:left position:10% line:83% size:80% You see the amount of damage that it's done. 14:12.300 --> 14:15.433 align:left position:10% line:83% size:80% Why don't we head from here down into that forest 14:15.433 --> 14:17.433 align:left position:10% line:89% size:80% and take a close look? 14:17.433 --> 14:24.400 align:left position:10% line:89% size:80% ♪ 14:24.400 --> 14:27.266 align:left position:25% line:83% size:65% Jim: Looking into the tops of the hardwoods 14:27.266 --> 14:29.733 align:left position:37.5% line:83% size:52.5% it gives a wintertime appearance. 14:29.733 --> 14:33.166 align:left position:10% line:83% size:80% Rudy: Yes, and yet this is spring, early summer, see. 14:33.166 --> 14:36.633 align:left position:10% line:83% size:80% And you can see the damage done by the gypsy moths-- 14:36.633 --> 14:39.133 align:left position:10% line:83% size:80% specifically the caterpillars here-- 14:39.133 --> 14:41.866 align:left position:10% line:83% size:80% taking leaves off of the hardwood trees 14:41.866 --> 14:43.933 align:left position:10% line:83% size:80% changing them into caterpillar 14:43.933 --> 14:46.300 align:left position:10% line:83% size:80% and really rearranging the forest. 14:46.300 --> 14:48.133 align:left position:10% line:83% size:80% We'll talk about that a little more 14:48.133 --> 14:50.133 align:left position:10% line:83% size:80% but look at the flowers here. 14:50.133 --> 14:51.833 align:left position:47.5% line:83% size:42.5% Jim: Covered with the laurel. 14:51.833 --> 14:53.500 align:left position:10% line:83% size:80% Rudy: Isn't it gorgeous? Yeah. 14:53.500 --> 14:57.200 align:left position:10% line:83% size:80% Mountain laurel is really at its peak right now here. 14:57.200 --> 14:59.666 align:left position:10% line:83% size:80% And you see it grows best, it seems 14:59.666 --> 15:02.133 align:left position:10% line:83% size:80% under the shade of trees overhead. 15:02.133 --> 15:04.133 align:left position:10% line:83% size:80% And now that they have been defoliated 15:04.133 --> 15:05.633 align:left position:10% line:83% size:80% that lets extra sunlight in. 15:05.633 --> 15:07.266 align:left position:10% line:83% size:80% And it'll be interesting to see 15:07.266 --> 15:09.433 align:left position:12.5% line:83% size:77.5% how mountain laurel is affected by that. 15:09.433 --> 15:10.833 align:left position:10% line:83% size:80% But beautiful flowers on it 15:10.833 --> 15:12.400 align:left position:10% line:83% size:80% and, of course, leaves there... 15:12.400 --> 15:13.866 align:left position:10% line:83% size:80% Evergreen-- it loves acidic soils. 15:13.866 --> 15:15.133 align:left position:10% line:83% size:80% This is just the right place. 15:15.133 --> 15:17.100 align:left position:10% line:83% size:80% Remember the striped maple we saw earlier-- 15:17.100 --> 15:19.100 align:left position:10% line:89% size:80% here it is again. 15:19.100 --> 15:21.833 align:left position:10% line:83% size:80% And look at the gypsy moth caterpillars. 15:21.833 --> 15:23.066 align:left position:32.5% line:89% size:57.5% Jim: Large moths all... 15:23.066 --> 15:24.666 align:left position:10% line:89% size:80% Rudy: All over the place. 15:24.666 --> 15:26.900 align:left position:10% line:89% size:80% Strange, those things 15:26.900 --> 15:30.400 align:left position:10% line:83% size:80% were introduced into the United States 1868 or 1869 15:30.400 --> 15:33.033 align:left position:12.5% line:83% size:77.5% by a naturalist in Massachusetts 15:33.033 --> 15:35.133 align:left position:10% line:83% size:80% and a few of them escaped. 15:35.133 --> 15:37.066 align:left position:10% line:83% size:80% And 20 years later around Boston 15:37.066 --> 15:38.733 align:left position:10% line:83% size:80% they were defoliating trees 15:38.733 --> 15:41.133 align:left position:10% line:83% size:80% and people got very worried about them. 15:41.133 --> 15:43.266 align:left position:10% line:83% size:80% Tried to stop their range expansion 15:43.266 --> 15:45.233 align:left position:10% line:89% size:80% and it has continued 15:45.233 --> 15:48.866 align:left position:10% line:83% size:80% even though some pretty powerful pesticides have been used. 15:48.866 --> 15:51.900 align:left position:35% line:83% size:55% Jim: Why can't they do something in the park 15:51.900 --> 15:53.766 align:left position:50% line:83% size:40% to stop the devastation? 15:53.766 --> 15:55.400 align:left position:10% line:83% size:80% Rudy: Well, they're trying to control them 15:55.400 --> 15:56.966 align:left position:10% line:83% size:80% a little bit along certain areas 15:56.966 --> 15:58.233 align:left position:10% line:89% size:80% but they often believe 15:58.233 --> 16:00.366 align:left position:10% line:83% size:80% that it's best to let nature take its course. 16:00.366 --> 16:02.366 align:left position:10% line:83% size:80% There are some diseases that have come in 16:02.366 --> 16:04.133 align:left position:10% line:83% size:80% and knocked down the population some. 16:04.133 --> 16:05.933 align:left position:10% line:83% size:80% Problem here, of course, is 16:05.933 --> 16:09.166 align:left position:10% line:83% size:80% that they eat hardwood leaves indiscriminately. 16:09.166 --> 16:12.700 align:left position:10% line:83% size:80% I mean, they start off depending on oaks at first-- 16:12.700 --> 16:15.466 align:left position:10% line:83% size:80% that seems to be the first larval food plant-- 16:15.466 --> 16:18.233 align:left position:10% line:83% size:80% but then they can go to maples and witch hazel 16:18.233 --> 16:19.866 align:left position:10% line:83% size:80% and many, many other things 16:19.866 --> 16:21.866 align:left position:10% line:89% size:80% stripping them down. 16:21.866 --> 16:24.666 align:left position:10% line:83% size:80% Range, as we've said, is expanding a little bit. 16:24.666 --> 16:26.133 align:left position:10% line:89% size:80% I even see... 16:26.133 --> 16:27.766 align:left position:10% line:83% size:80% Look over on the tree there-- 16:27.766 --> 16:29.266 align:left position:10% line:83% size:80% you can see the egg masses 16:29.266 --> 16:30.566 align:left position:10% line:83% size:80% that were laid last year 16:30.566 --> 16:32.166 align:left position:10% line:83% size:80% that have now hatched out. 16:32.166 --> 16:35.566 align:left position:10% line:83% size:80% Caterpillars came out of those little, teeny-weeny holes-- 16:35.566 --> 16:38.766 align:left position:10% line:83% size:80% look like about the size of pinholes in the egg masses. 16:38.766 --> 16:40.300 align:left position:10% line:83% size:80% A female lays them there 16:40.300 --> 16:43.666 align:left position:10% line:77% size:80% and covers them with a little bit of hair from her abdomen. 16:43.666 --> 16:46.366 align:left position:10% line:83% size:80% And then they hatch n1t, usually the next year 16:46.366 --> 16:48.366 align:left position:10% line:83% size:80% and, of course, begin to feed. 16:48.366 --> 16:51.900 align:left position:12.5% line:83% size:77.5% Jim: And there are billions and billions of them in the park. 16:51.900 --> 16:55.033 align:left position:10% line:83% size:80% Rudy: Yeah, I even see some last year's pupal cases there. 16:55.033 --> 16:57.200 align:left position:10% line:83% size:80% See, on the side of the tree stuck. 16:57.200 --> 16:59.333 align:left position:10% line:83% size:80% Again, they love rough-barked trees 16:59.333 --> 17:02.500 align:left position:10% line:83% size:80% and the oaks, of course, are one of the trees here 17:02.500 --> 17:04.100 align:left position:10% line:83% size:80% that have very rough bark. 17:04.100 --> 17:06.000 align:left position:10% line:83% size:80% So they use them to lay eggs on 17:06.000 --> 17:07.400 align:left position:10% line:89% size:80% and also to pupate on. 17:07.400 --> 17:08.533 align:left position:25% line:89% size:65% Jim: Here it is late June; 17:08.533 --> 17:10.566 align:left position:47.5% line:83% size:42.5% the caterpillar in a few months-- 17:10.566 --> 17:12.500 align:left position:42.5% line:83% size:47.5% a few weeks, even-- will be a moth? 17:12.500 --> 17:14.733 align:left position:10% line:83% size:80% Rudy: Yeah, July is when they begin to pupate. 17:14.733 --> 17:17.366 align:left position:10% line:83% size:80% And the moth hatches out pretty soon after that 17:17.366 --> 17:18.566 align:left position:10% line:89% size:80% and then flies around 17:18.566 --> 17:20.566 align:left position:10% line:83% size:80% and lays eggs all over the place. 17:20.566 --> 17:21.800 align:left position:35% line:89% size:55% Jim: There are so many 17:21.800 --> 17:23.300 align:left position:50% line:83% size:40% the droppings sound like rain. 17:23.300 --> 17:24.800 align:left position:10% line:83% size:80% Rudy: Yeah, just listen for a moment. 17:24.800 --> 17:27.000 align:left position:10% line:83% size:80% Sounds like the pitter-patter of raindrops. 17:27.000 --> 17:31.766 align:left position:12.5% line:89% size:77.5% (droppings pitter-pattering) 17:31.766 --> 17:35.333 align:left position:10% line:83% size:80% Again, we talk about recycling every now and then. 17:35.333 --> 17:37.300 align:left position:10% line:83% size:80% They're taking these leaves from trees 17:37.300 --> 17:39.166 align:left position:12.5% line:83% size:77.5% and changing them into a caterpillar 17:39.166 --> 17:41.233 align:left position:10% line:83% size:80% that really is supposed to be in Europe, 17:41.233 --> 17:44.033 align:left position:10% line:83% size:80% but an alien species that kind of got away from us. 17:44.033 --> 17:45.433 align:left position:10% line:89% size:80% Here's one on the ground. 17:45.433 --> 17:46.966 align:left position:10% line:83% size:80% Here let me just pick it up. 17:48.333 --> 17:51.500 align:left position:10% line:83% size:80% Get a close look at this gypsy moth caterpillar. 17:51.500 --> 17:53.566 align:left position:42.5% line:83% size:47.5% Jim: Very fuzzy, lots of fine hairs. 17:53.566 --> 17:57.266 align:left position:10% line:83% size:80% Rudy: Yeah, this is a pretty distinctive little caterpillar. 17:57.266 --> 18:00.633 align:left position:10% line:83% size:80% You can see when they get to be older individuals 18:00.633 --> 18:03.066 align:left position:10% line:83% size:80% they've got that reddish color on the back; 18:03.066 --> 18:06.066 align:left position:10% line:83% size:80% those dots with a little bit of blue toward the front. 18:06.066 --> 18:08.866 align:left position:10% line:83% size:80% And, again, if anyone sees a caterpillar like this 18:08.866 --> 18:10.466 align:left position:10% line:89% size:80% anywhere in the United States 18:10.466 --> 18:12.466 align:left position:10% line:89% size:80% they need to report it 18:12.466 --> 18:14.666 align:left position:10% line:83% size:80% because we're trying to keep track 18:14.666 --> 18:17.633 align:left position:10% line:83% size:80% on the range expansion of this alien species. 18:17.633 --> 18:20.566 align:left position:10% line:83% size:80% They've been found as far south as Florida 18:20.566 --> 18:22.666 align:left position:10% line:83% size:80% as far west as Missouri already. 18:22.666 --> 18:26.300 align:left position:10% line:89% size:80% So the range is expanding. 18:26.300 --> 18:27.666 align:left position:37.5% line:89% size:52.5% Jim: Innocent-looking 18:27.666 --> 18:29.533 align:left position:32.5% line:83% size:57.5% but it's done thousands of acres of damage. 18:29.533 --> 18:31.800 align:left position:10% line:83% size:80% Rudy: Billions and billions of individuals 18:31.800 --> 18:34.333 align:left position:10% line:83% size:80% can really change a forest very rapidly. 18:34.333 --> 18:36.600 align:left position:10% line:83% size:80% And it's important to make sure 18:36.600 --> 18:39.433 align:left position:10% line:83% size:80% we don't carry these away on our cars-- 18:39.433 --> 18:42.600 align:left position:10% line:83% size:80% either the caterpillars or the egg masses. 18:42.600 --> 18:44.766 align:left position:10% line:83% size:80% Look down in the trail ahead of us there. 18:44.766 --> 18:47.800 align:left position:10% line:83% size:80% Now, here are a couple of native species of lepidopterans-- 18:47.800 --> 18:49.800 align:left position:10% line:83% size:80% not moths, but butterflies. 18:49.800 --> 18:50.966 align:left position:10% line:89% size:80% The biggest one there 18:50.966 --> 18:53.166 align:left position:10% line:83% size:80% red-spotted purple is the common name. 18:53.166 --> 18:55.166 align:left position:10% line:83% size:80% And, look, it makes sense, I mean... 18:55.166 --> 18:56.300 align:left position:27.5% line:89% size:62.5% Jim: Colors give it away. 18:56.300 --> 18:58.433 align:left position:10% line:83% size:80% Rudy: They're the red... Reddish orange spots 18:58.433 --> 19:00.333 align:left position:10% line:83% size:80% on the underside of the hind wing. 19:00.333 --> 19:02.633 align:left position:10% line:83% size:80% And then when it spreads those wings out 19:02.633 --> 19:04.066 align:left position:10% line:83% size:80% to warm up in the sunlight 19:04.066 --> 19:05.766 align:left position:10% line:83% size:80% you see the purple on the back. 19:05.766 --> 19:08.400 align:left position:10% line:83% size:80% Using its tongue, now, unrolling that proboscis-- 19:08.400 --> 19:09.966 align:left position:10% line:83% size:80% looks kind of like a tongue-- 19:09.966 --> 19:11.833 align:left position:10% line:83% size:80% getting moisture out of the ground 19:11.833 --> 19:13.233 align:left position:10% line:83% size:80% here along the wet trail. 19:13.233 --> 19:15.100 align:left position:30% line:83% size:60% Jim: The other butter is very colorful, too. 19:15.100 --> 19:16.600 align:left position:10% line:89% size:80% Rudy: Yes, looks fresh, too. 19:16.600 --> 19:17.933 align:left position:45% line:89% size:45% Jim: Painted lady? 19:17.933 --> 19:19.200 align:left position:10% line:83% size:80% Rudy: One of the painted ladies 19:19.200 --> 19:20.933 align:left position:10% line:83% size:80% probably the American painted lady. 19:20.933 --> 19:23.100 align:left position:10% line:83% size:80% And, again, here, warming up in the sunlight 19:23.100 --> 19:24.333 align:left position:10% line:89% size:80% unrolling that proboscis 19:24.333 --> 19:25.833 align:left position:10% line:83% size:80% getting a little bit of fluid. 19:25.833 --> 19:27.166 align:left position:10% line:83% size:80% Those are fluid feeders. 19:27.166 --> 19:29.433 align:left position:10% line:83% size:80% But, now, the caterpillars of those butterflies 19:29.433 --> 19:31.066 align:left position:10% line:89% size:80% feed on leaves, right? 19:31.066 --> 19:32.600 align:left position:62.5% line:89% size:27.5% Jim: Right. 19:32.600 --> 19:34.566 align:left position:10% line:83% size:80% Rudy: What happens if you're a butterfly here 19:34.566 --> 19:36.000 align:left position:10% line:83% size:80% and these gypsy moth caterpillars 19:36.000 --> 19:37.366 align:left position:10% line:83% size:80% have taken away all the leaves? 19:37.366 --> 19:38.433 align:left position:57.5% line:89% size:32.5% Jim: You die. 19:38.433 --> 19:39.600 align:left position:10% line:89% size:80% Rudy: That's right. 19:39.600 --> 19:41.700 align:left position:10% line:83% size:80% You lay... Where do you lay your eggs? 19:41.700 --> 19:43.466 align:left position:12.5% line:83% size:77.5% They are really having an effect 19:43.466 --> 19:44.966 align:left position:10% line:83% size:80% not only on the plants here 19:44.966 --> 19:46.700 align:left position:10% line:83% size:80% but also on the animal species. 19:46.700 --> 19:48.233 align:left position:10% line:83% size:80% There's an old forest down the way. 19:48.233 --> 19:49.433 align:left position:10% line:83% size:80% Let's go take a look at it. 19:49.433 --> 19:53.166 align:left position:10% line:89% size:80% ♪ 19:53.166 --> 19:54.900 align:left position:35% line:83% size:55% Jim: Beautiful, shady, green forest 19:54.900 --> 19:56.800 align:left position:42.5% line:89% size:47.5% with giant hemlocks 19:56.800 --> 19:59.400 align:left position:27.5% line:83% size:62.5% thanks pretty much to George Freeman Pollock 19:59.400 --> 20:01.733 align:left position:37.5% line:83% size:52.5% who had the vision to save much of this. 20:01.733 --> 20:03.900 align:left position:10% line:83% size:80% Rudy: Yeah, this is some of that old forest 20:03.900 --> 20:06.133 align:left position:10% line:83% size:80% most of which has been long since cut. 20:06.133 --> 20:08.866 align:left position:10% line:83% size:80% And you see the world is quite different here. 20:08.866 --> 20:11.033 align:left position:10% line:83% size:80% I mean, it's cooler, it's more moist 20:11.033 --> 20:14.000 align:left position:10% line:83% size:80% and Eastern hemlock is the dominating tree here. 20:14.000 --> 20:15.866 align:left position:10% line:83% size:80% These that are low enough to us 20:15.866 --> 20:17.366 align:left position:10% line:83% size:80% you can actually, you know 20:17.366 --> 20:19.533 align:left position:10% line:83% size:80% see the needles on it very clearly-- 20:19.533 --> 20:21.666 align:left position:10% line:83% size:80% some of the new, green growth on it. 20:21.666 --> 20:22.833 align:left position:10% line:89% size:80% Tremendous in size. 20:22.833 --> 20:24.066 align:left position:10% line:89% size:80% One of the conifers. 20:24.066 --> 20:25.933 align:left position:10% line:83% size:80% And there's another one over here. 20:25.933 --> 20:28.366 align:left position:10% line:83% size:80% Look at the... Look at the white pine there. 20:28.366 --> 20:29.900 align:left position:10% line:89% size:80% and I'm amazed 20:29.900 --> 20:31.666 align:left position:10% line:83% size:80% not only the gypsy moth caterpillars 20:31.666 --> 20:33.133 align:left position:10% line:89% size:80% eat deciduous leaves; 20:33.133 --> 20:34.333 align:left position:10% line:83% size:80% they're eating the leaves 20:34.333 --> 20:35.900 align:left position:10% line:83% size:80% on that conifer, the white pine. 20:35.900 --> 20:39.300 align:left position:10% line:83% size:80% And I'll bet you they'd probably take hemlock 20:39.300 --> 20:42.333 align:left position:10% line:83% size:80% if there's no other alternative. 20:42.333 --> 20:44.900 align:left position:10% line:89% size:80% Changing... The world-- 20:44.900 --> 20:48.033 align:left position:10% line:83% size:80% alien species can do that sometimes. 20:48.033 --> 20:50.066 align:left position:10% line:83% size:80% But that's an interesting tree. 20:50.066 --> 20:54.333 align:left position:10% line:83% size:80% And look at the size of the stump right here next to us. 20:54.333 --> 20:56.266 align:left position:27.5% line:83% size:62.5% Jim: Could have been a couple hundred years old. 20:56.266 --> 20:58.100 align:left position:10% line:83% size:80% Rudy: Oh, wow, yeah, hollowed out basically in the center. 20:58.100 --> 20:59.300 align:left position:10% line:89% size:80% Look at those... 20:59.300 --> 21:01.100 align:left position:10% line:83% size:80% It's hard to even see the rings anymore. 21:01.100 --> 21:04.133 align:left position:10% line:83% size:80% Movement right there, Jim, little bit. 21:04.133 --> 21:07.300 align:left position:10% line:83% size:80% Very common to find in this kind of situation 21:07.300 --> 21:09.166 align:left position:10% line:83% size:80% the red-backed salamander-- 21:09.166 --> 21:12.033 align:left position:20% line:83% size:70% abundant here in Shenandoah National Park. 21:12.033 --> 21:13.400 align:left position:10% line:83% size:80% See the line down the back 21:13.400 --> 21:14.966 align:left position:10% line:83% size:80% isn't always necessarily red-- 21:14.966 --> 21:16.900 align:left position:10% line:83% size:80% it can be kind of a yellowish color. 21:16.900 --> 21:18.433 align:left position:10% line:89% size:80% Moving along slowly. 21:18.433 --> 21:20.733 align:left position:10% line:83% size:80% No lungs in that animal-- lungless animal. 21:20.733 --> 21:22.233 align:left position:10% line:83% size:80% Breathes through the skin... 21:22.233 --> 21:23.833 align:left position:35% line:89% size:55% Jim: Through the skin. 21:23.833 --> 21:24.966 align:left position:10% line:83% size:80% Rudy: And linings of the mouth. 21:24.966 --> 21:26.333 align:left position:10% line:83% size:80% Doesn't stay there very long. 21:26.333 --> 21:27.800 align:left position:12.5% line:83% size:77.5% You see kind of in a shaded area 21:27.800 --> 21:28.933 align:left position:10% line:83% size:80% a little bit more moist. 21:28.933 --> 21:30.033 align:left position:45% line:89% size:45% Jim: Fully mature? 21:30.033 --> 21:31.366 align:left position:10% line:89% size:80% Rudy: Yeah, mm-hmm. 21:31.366 --> 21:32.900 align:left position:10% line:83% size:80% That's an average- size adult. 21:32.900 --> 21:35.300 align:left position:10% line:83% size:80% They feed on earthworms and soft-bodied insects 21:35.300 --> 21:36.966 align:left position:10% line:89% size:80% and other things here. 21:36.966 --> 21:39.033 align:left position:10% line:83% size:80% This forest, though, has changed a lot. 21:39.033 --> 21:41.200 align:left position:12.5% line:83% size:77.5% A lot of these hemlocks were cut for tannic acid 21:41.200 --> 21:42.366 align:left position:10% line:89% size:80% to tan hides. 21:42.366 --> 21:43.700 align:left position:10% line:83% size:80% Chestnut blight, you remember 21:43.700 --> 21:44.933 align:left position:10% line:83% size:80% came and got the chestnuts 21:44.933 --> 21:46.933 align:left position:10% line:83% size:80% and now the gypsy moths are changing things. 21:46.933 --> 21:48.133 align:left position:10% line:89% size:80% Here's some more change: 21:48.133 --> 21:49.666 align:left position:12.5% line:83% size:77.5% look at the.. That's an oak. 21:49.666 --> 21:50.866 align:left position:55% line:89% size:35% Jim: A fungus? 21:50.866 --> 21:52.066 align:left position:10% line:89% size:80% Rudy: Yeah. 21:52.066 --> 21:53.333 align:left position:10% line:89% size:80% One of the mushrooms-- 21:53.333 --> 21:54.800 align:left position:10% line:83% size:80% bearded hedgehog mushroom. 21:54.800 --> 21:56.266 align:left position:10% line:83% size:80% Pretty good common name for it-- 21:56.266 --> 21:58.133 align:left position:10% line:83% size:80% looks almost like a beard hanging down. 21:58.133 --> 22:00.300 align:left position:10% line:83% size:80% This is the reproductive part, now 22:00.300 --> 22:02.833 align:left position:10% line:83% size:80% of that mushroom; most of it's inside. 22:02.833 --> 22:05.433 align:left position:10% line:83% size:80% And it's one of the causes of heartrot 22:05.433 --> 22:07.266 align:left position:10% line:89% size:80% in the, uh...in the oaks. 22:07.266 --> 22:09.000 align:left position:10% line:83% size:80% That is an edible mushroom 22:09.000 --> 22:10.300 align:left position:10% line:89% size:80% believe it or not. 22:10.300 --> 22:12.233 align:left position:50% line:89% size:40% Jim: Hedgehog... 22:12.233 --> 22:14.266 align:left position:10% line:83% size:80% Rudy: The bearded hedgehog mushroom 22:14.266 --> 22:15.633 align:left position:10% line:89% size:80% is the common name. 22:15.633 --> 22:17.100 align:left position:10% line:89% size:80% It's a fungus, again 22:17.100 --> 22:19.500 align:left position:10% line:83% size:80% changing the tree into a mushroom. 22:19.500 --> 22:21.066 align:left position:10% line:89% size:80% Interesting place here. 22:21.066 --> 22:22.233 align:left position:10% line:89% size:80% Course, totally changes 22:22.233 --> 22:23.666 align:left position:10% line:83% size:80% when you get to an open area. 22:23.666 --> 22:24.933 align:left position:10% line:89% size:80% Not many. 22:24.933 --> 22:26.700 align:left position:10% line:83% size:80% Let's head toward big meadows next. 22:26.700 --> 22:36.800 align:left position:10% line:89% size:80% ♪ 22:36.800 --> 22:40.066 align:left position:10% line:83% size:80% This is quite a different feeling now than we've had. 22:40.066 --> 22:43.733 align:left position:10% line:83% size:80% Shenandoah National Park has so much to offer variety-wise. 22:43.733 --> 22:45.466 align:left position:42.5% line:83% size:47.5% Jim: They call this "big meadow." 22:45.466 --> 22:46.933 align:left position:10% line:83% size:80% Rudy: Pretty good name for it 22:46.933 --> 22:49.000 align:left position:10% line:83% size:80% because, look, this wide expanse. 22:49.000 --> 22:51.000 align:left position:10% line:83% size:80% Very few trees are growing here. 22:51.000 --> 22:53.800 align:left position:10% line:83% size:80% Indians probably took advantage of this area 22:53.800 --> 22:55.400 align:left position:10% line:89% size:80% a good while ago to hunt. 22:55.400 --> 22:57.466 align:left position:12.5% line:83% size:77.5% And, of course, the park service 22:57.466 --> 22:59.066 align:left position:10% line:89% size:80% I imagine, keeps it back 22:59.066 --> 23:01.466 align:left position:12.5% line:83% size:77.5% because there are a few tree species 23:01.466 --> 23:03.200 align:left position:10% line:83% size:80% trying to get a hold here-- 23:03.200 --> 23:04.700 align:left position:10% line:89% size:80% kind of pioneer species. 23:04.700 --> 23:06.833 align:left position:10% line:83% size:80% But you can imagine, a meadow like this... 23:06.833 --> 23:07.933 align:left position:10% line:89% size:80% Look up on the road-- 23:07.933 --> 23:09.266 align:left position:10% line:89% size:80% toward the road there. 23:09.266 --> 23:10.666 align:left position:50% line:89% size:40% Jim: Ah, a deer. 23:10.666 --> 23:13.466 align:left position:10% line:5% size:80% Rudy: White-tailed deer love situations like this. 23:13.466 --> 23:16.000 align:left position:10% line:5% size:80% I'm surprised we don't see one right here. 23:16.000 --> 23:17.666 align:left position:10% line:5% size:80% Beautiful doe there. 23:17.666 --> 23:19.900 align:left position:10% line:83% size:80% And you can see the big ears 23:19.900 --> 23:22.166 align:left position:10% line:83% size:80% and the big, big eyes there. 23:22.166 --> 23:24.400 align:left position:10% line:5% size:80% Probably a couple years old. 23:24.400 --> 23:27.333 align:left position:10% line:5% size:80% Look at it using those... Those hooves 23:27.333 --> 23:29.000 align:left position:10% line:5% size:80% to dig a little bit. 23:29.000 --> 23:30.366 align:left position:10% line:5% size:80% I don't know what it's getting. 23:30.366 --> 23:31.666 align:left position:27.5% line:5% size:62.5% Jim: Roots and nutrients? 23:31.666 --> 23:33.733 align:left position:10% line:5% size:80% Rudy: It almost looks like it's licking the clay 23:33.733 --> 23:34.966 align:left position:10% line:5% size:80% on the side of the road. 23:34.966 --> 23:37.433 align:left position:12.5% line:5% size:77.5% But scratching anyway with those front legs. 23:37.433 --> 23:38.833 align:left position:10% line:5% size:80% Runs really on its toes. 23:38.833 --> 23:40.266 align:left position:10% line:5% size:80% Look at those slender legs. 23:40.266 --> 23:42.366 align:left position:10% line:5% size:80% And, again, when you run on your toes 23:42.366 --> 23:43.966 align:left position:10% line:5% size:80% you can move rather rapidly. 23:43.966 --> 23:45.400 align:left position:10% line:5% size:80% White tail there-- 23:45.400 --> 23:47.466 align:left position:10% line:5% size:80% you can barely see that twitching a little-- 23:47.466 --> 23:48.566 align:left position:10% line:5% size:80% gives it the name. 23:48.566 --> 23:49.933 align:left position:37.5% line:89% size:52.5% Virginia whitetail. 23:49.933 --> 23:51.033 align:left position:37.5% line:5% size:52.5% Virginia white-tailed deer. 23:51.033 --> 23:52.600 align:left position:10% line:5% size:80% Yeah, that's a good name for it-- 23:52.600 --> 23:53.866 align:left position:10% line:5% size:80% makes sense here. 23:53.866 --> 23:55.466 align:left position:10% line:89% size:80% Now, what about plants? 23:55.466 --> 23:57.566 align:left position:27.5% line:83% size:62.5% Well, certainly something very showy here-- 23:57.566 --> 23:58.600 align:left position:40% line:89% size:50% small white flowers. 23:58.600 --> 23:59.866 align:left position:10% line:83% size:80% Rudy: Yeah, in the lily family. 23:59.866 --> 24:02.633 align:left position:10% line:83% size:80% Common name for that is fly poison 24:02.633 --> 24:06.433 align:left position:10% line:83% size:80% and it's also something that is really, in fact, 24:06.433 --> 24:08.466 align:left position:10% line:89% size:80% poisonous to cattle. 24:08.466 --> 24:10.300 align:left position:10% line:83% size:80% And if they were in this meadow 24:10.300 --> 24:11.933 align:left position:10% line:83% size:80% they might have a little bit of a problem with that. 24:11.933 --> 24:13.233 align:left position:10% line:89% size:80% But leaves at the base 24:13.233 --> 24:14.633 align:left position:10% line:83% size:80% and then those white flowers 24:14.633 --> 24:15.866 align:left position:10% line:89% size:80% coming up on the stalk. 24:15.866 --> 24:18.466 align:left position:10% line:83% size:80% And speaking of flowers kind of on a stalk-- 24:18.466 --> 24:20.533 align:left position:10% line:83% size:80% look at the littlellow flowers right here. 24:20.533 --> 24:21.866 align:left position:10% line:83% size:80% See them in front of us there? 24:21.866 --> 24:23.166 align:left position:10% line:89% size:80% Plant with whorls of leaves 24:23.166 --> 24:24.833 align:left position:10% line:83% size:80% and then whorls of, you know, flowers 24:24.833 --> 24:26.833 align:left position:10% line:83% size:80% coming out at the base of the leaves there. 24:26.833 --> 24:27.866 align:left position:10% line:89% size:80% Loosestrife... 24:27.866 --> 24:28.966 align:left position:47.5% line:89% size:42.5% Jim: Loosestrife? 24:28.966 --> 24:30.500 align:left position:10% line:83% size:80% Rudy: ...Is the common name for that. 24:30.500 --> 24:31.866 align:left position:10% line:83% size:80% And wet meadows like this 24:31.866 --> 24:33.033 align:left position:10% line:83% size:80% are just a great place 24:33.033 --> 24:35.200 align:left position:10% line:83% size:80% any season of the year for wild flowers. 24:35.200 --> 24:37.666 align:left position:10% line:83% size:80% And shrubs, too-- blueberries mainly. 24:37.666 --> 24:40.766 align:left position:10% line:83% size:80% I even see some early fruit on the blueberries. 24:40.766 --> 24:42.933 align:left position:10% line:83% size:80% Jim, you're not going to believe this: 24:42.933 --> 24:44.800 align:left position:10% line:83% size:80% right down there by the shrubs-- 24:44.800 --> 24:46.566 align:left position:10% line:83% size:80% little fawn, this year's young. 24:46.566 --> 24:48.133 align:left position:10% line:83% size:80% Stripe almost down the back 24:48.133 --> 24:49.800 align:left position:10% line:83% size:80% white on the sides, big ears. 24:49.800 --> 24:51.500 align:left position:10% line:83% size:80% Again, look at that little thing. 24:51.500 --> 24:54.000 align:left position:10% line:83% size:80% Delicate... Frightened by us a little, not moving 24:54.000 --> 24:56.800 align:left position:10% line:83% size:80% and slowly working its way back down 24:56.800 --> 24:58.966 align:left position:10% line:83% size:80% into that vegetation to hide 24:58.966 --> 25:02.166 align:left position:10% line:83% size:80% waiting, I guess, for mama to come back. 25:02.166 --> 25:04.200 align:left position:10% line:83% size:80% Could have been the mother 25:04.200 --> 25:06.866 align:left position:10% line:83% size:80% up there on the road a minute ago. 25:06.866 --> 25:08.466 align:left position:10% line:83% size:80% Totally different environment 25:08.466 --> 25:11.166 align:left position:10% line:83% size:80% and, of course, that affects the plants that live here 25:11.166 --> 25:12.666 align:left position:10% line:83% size:80% and that affects the animals. 25:12.666 --> 25:15.166 align:left position:15% line:83% size:75% Jim: All making up a part of Shenandoah National Park. 25:15.166 --> 25:16.533 align:left position:10% line:83% size:80% Rudy: Yeah, great diversity here. 25:16.533 --> 25:17.700 align:left position:10% line:89% size:80% Let's head on. 25:17.700 --> 25:29.666 align:left position:10% line:89% size:80% ♪ 25:29.666 --> 25:32.733 align:left position:12.5% line:83% size:77.5% Jim: 105 miles of skyline drive goes through the park 25:32.733 --> 25:34.900 align:left position:37.5% line:83% size:52.5% and gives opportunity to look out. 25:34.900 --> 25:37.466 align:left position:10% line:83% size:80% Rudy: Yeah, these pull-offs are nice and safe. 25:37.466 --> 25:39.833 align:left position:10% line:83% size:80% This one's got a few hemlocks down there 25:39.833 --> 25:41.533 align:left position:10% line:83% size:80% in the distance a little bit. 25:41.533 --> 25:44.033 align:left position:10% line:83% size:80% So the conifers do well in certain areas 25:44.033 --> 25:45.866 align:left position:10% line:83% size:80% especially north-facing slopes. 25:45.866 --> 25:47.066 align:left position:10% line:89% size:80% And then the oak there 25:47.066 --> 25:48.766 align:left position:10% line:83% size:80% stripped with those gypsy moths. 25:48.766 --> 25:51.566 align:left position:10% line:83% size:80% Hopefully nature can come up with a way to control it 25:51.566 --> 25:55.433 align:left position:10% line:83% size:80% with diseases or predators or maybe parasites. 25:55.433 --> 25:56.800 align:left position:10% line:83% size:80% Blue flowers, and, you know 25:56.800 --> 25:59.066 align:left position:10% line:83% size:80% you see them a lot along the roadsides here. 25:59.066 --> 26:01.000 align:left position:10% line:83% size:80% Blueweed is the common name for it 26:01.000 --> 26:02.433 align:left position:10% line:89% size:80% and that's European 26:02.433 --> 26:04.333 align:left position:10% line:83% size:80% just like the gypsy moth is European. 26:04.333 --> 26:08.633 align:left position:10% line:83% size:80% So many of these nonnative species have become weeds 26:08.633 --> 26:11.200 align:left position:10% line:89% size:80% as that name implies. 26:11.200 --> 26:12.633 align:left position:37.5% line:83% size:52.5% Jim: Over two million visitors a year 26:12.633 --> 26:14.866 align:left position:27.5% line:83% size:62.5% come to visit Shenandoah, and we can be thankful 26:14.866 --> 26:16.566 align:left position:42.5% line:83% size:47.5% it's been set aside for safekeeping. 26:16.566 --> 26:18.433 align:left position:10% line:83% size:80% Rudy: And it's so close to so many people, too. 26:18.433 --> 26:20.333 align:left position:10% line:83% size:80% I hope they'll come take advantage of it. 26:20.333 --> 26:21.833 align:left position:10% line:89% size:80% Nice place. 26:21.833 --> 26:23.633 align:left position:50% line:83% size:40% Jim: We hope you enjoyed your visit 26:23.633 --> 26:25.933 align:left position:22.5% line:83% size:67.5% to Shenandoah National Park in Virginia 26:25.933 --> 26:28.900 align:left position:20% line:83% size:70% and will join us again on the nextNature Scene. 26:28.900 --> 27:50.400 align:left position:50% line:89% size:40% ♪ 27:50.400 --> 27:54.500 align:left position:10% line:5% size:80% Announcer: Nature Sceneis made possible in part by grants from: 27:56.733 --> 27:59.933 align:left position:15% line:83% size:75% Helping sustainNature Scene for the past four years. 27:59.933 --> 28:02.133 align:left position:35% line:89% size:55% Santee Cooper 28:02.133 --> 28:05.300 align:left position:10% line:83% size:80% where protection and improvement of our environment 28:05.300 --> 28:10.000 align:left position:22.5% line:83% size:67.5% are equal in importance to providing electric energy. 28:10.000 --> 28:12.966 align:left position:22.5% line:89% size:67.5% And by viewers like you 28:12.966 --> 28:16.700 align:left position:15% line:83% size:75% members of the ETV Endowment of South Carolina.