Black Hill invasives

mixed blessingSunday brought us back to Black Hill Regional Park, this time with Carole Bergmann in the first of two field trips to look at invasive non-indigenous plant species. We explored an area quite close to the patch where Baltimore Checkerspots are being reared. The newly-paved hard-surface Black Hill Trail, which snakes through the park property, is a mixed blessing. This hike-bike trail, much wider than the footpath it replaced, exposes more forest floor to daylight, allowing opportunists like Japanese Stiltgrass (Microstegium vimineum) to take over.

still tastyAnother common invasive to be found in the park, one that I am less familiar with, is Wineberry (Rubus phoenicolasius), a tasty raspberry cousin with impossibly red drupes. It hopscotches across habitat by sending out hairy red canes that droop over and root when they touch ground.

long pastOne of the bad guys we met in Karen Molines’ spring class, Garlic Mustard (Alliaria petiolata) is all done by this time of year, leaving nothing but dry stalks.

mile a secondBut Mile-a-Minute, a/k/a Asiatic Tearthumb (Polygonum perfoliatum), is just coming into fruit. This annual will continue producing fruit and seeds until frost.

Even though Polygonum and Microstegium can form dense mats that choke out all diversity in the ground cover, Carole (in her capacity as botanist for the county park system) gives less management attention to sprawling and trailing species like these and more to climbing vines and shrubs like Oriental Bittersweet (Celastrus orbiculatus). These are species that can weaken and kill mature oaks and hickories and hence open up yet more gaps in the canopy. While the bittersweet is the bane of upcounty forests, in the south the big problem is Porcelainberry (Ampelopsis brevipedunculata).

Near the boat landing area, Carole showed us a meadow that had been largely restored. Most of the Autumn Olive (Elaeagnus umbellata) has been removed, and Spotted Knapweed (Centaurea stoebe), a thistle lookalike that is usually thought of as a pest of the west, is under control.

lunchBonus invertebrate for the trip was this Wheel Bug (Arilus cristatus) munching on a Japanese Beetle.

More than smooches

David M. Watson and Matthew Herring present an intriguing open-access paper: it presents the results of a removal experiment, quantifying the striking effect to which mistletoes serve as a keystone resource in Australian forests. The contribution of these parasitic species to leaf litter and the nutrient cycle is one of the factors favoring bird diversity, the authors report.

The Economist

Damage control

Meera Subramanian reports on current efforts to reduce bat and bird mortality at wind turbine sites. Progress has been made even at the eagle-deadly Altamont Pass.

In Cádiz [in Spain], temporarily shutting down turbines has worked because the biggest threat is to migratory birds, which pass through only occasionally. Similar methods could reduce mortalities along the migratory bottlenecks in Central America, Europe and Asia, says Miguel Ferrer, a conservation biologist at Doñana and a co-author of the Cádiz study.

But that tactic will not work in Altamont Pass, which has both migratory and permanent avian populations. Instead, companies there are making headway by replacing small, ageing turbines with fewer large ones. Choosing sites carefully can help, too. “Raptors do not use the landscape randomly,” explains Doug Bell, wildlife programme manager with the East Bay Regional Park District, which manages parklands and monitors wind farms around Altamont.

Good on ya: 8

Scott Mortimer’s baseball card project is personal, unique, committed: he’s seeking a autograph for every card from the 1983 Fleer set. Of the run of 660 cards, he needs 99 more. He makes progress with many visits to ball parks, personal letters, trades with other collectors, and that enabler of obsessives everywhere, the internet.

[Mortimer] has made discoveries along the way. Ken Smith, a Braves first baseman, worked as a car dealer; Terry Felton, a Twins pitcher, as a captain in a sheriff’s office in Louisiana; Ben Hayes, a Reds pitcher, as the president of the New York/Penn League.

Biff Pocoroba — what a great name,” Mortimer said, referring to a Braves catcher. “You know what he does now? He owns a sausage company.”

Rainbow Compsons

Faulkner meets Danielewski in multiple shades of awesome: the Folio Society, which heretofore I have associated with expensive, overdone editions of books that are never read, is releasing an edition of The Sound and the Fury that responds to Faulkner’s hope that each timeframe of the Benjy chapater be printed in a distinct color of ink. Expediency forced Faulkner and his publishers to rely on shifts between Roman and Italic type to denote the changes.

The Folio Society … drew on the expertise of two noted Faulkner scholars to work on fulfilling Faulkner’s idea. Stephen M. Ross and Noel Polk undertook the painstaking task of identifying each different time-level to be coloured, while keeping the original italic/roman shifts. We can never know if this is exactly what Faulkner would have envisaged, but the result justifies his belief that coloured inks would allow readers to follow the strands of the novel more easily, without compromising the ‘thought-transference’ for which he argued so passionately.

The Morning News

many Ways

Most of the low-quality posts on Stack Overflow you just ignore, edit, or flag, and then move on. (Sort of like the game Date, Screw, or Throw off a Cliff.) But this little illiterate gem, posted in response to the question “What is the best way to get a site visitor’s location?”, is jolie laide, definitely worth making fun of:

Thank youuu :) but the best and important ways to get more visitors are : add you website to directory Web like Altavista alltheweb DMOZ ..(must have a hight page rank) Add your website to The Big Search Engine Like Yahoo GOOGLE …( add url ) Make Rss To your website (feedcat …. feed rss …) share it in Facebook Twitter Google plus youtube and also Link In …myspace.. Do and change ads whit your friends mine share blog of your friend in your blog …(change ads it’s free ) and also ADS NOT FREE buy the area in the other website Or go to The big Company and to have more visitors trought BUY ADS like google Adwords like yahoo Adversing !… We have many Ways to get visitors you can visit us : www.REDACTED.blogspot.com or contact us : REDACTED@hotmail.fr

Myspace?!

The post has been flagged as spam, and will be gone soon from SO. Enjoy it here.

Dolly Sods Wilderness

setting outThe Dolly Sods tract in West Virginia is special to a lot of naturalists and other fans of the outdoors. Geologically, it’s on the eastern edge of the Appalachian Plateau province, where the Ridge and Valley province gives way to it. At an elevation of about 4000 feet, it’s just west of the eastern Continental Divide, hence part of the Ohio River watershed. The nutrient-poor, poorly drained soils support plant communities of sphagnum glades, blueberry heath barrens, and grassy balds—and that means some animal specialities can be found, too. Part of the Monongahela National Forest, parts of the area received wilderness designation in 1975. Since so many others have written about it, I was overdue for my first visit to the place.

flag-formon top of old spruceyThe local spruce is Picea rubens. The tall, isolated trees here show the effect of growing in an environment where the wind is always blowing from the west: there’s no foliage on that side of the tree. I found cones only at the tops of trees; fortunately, this stunted example along the Rocky Ridge Trail has matured at only six feet in height, so that I could get a snap of the cones from eye level.

nice walkbloominAny hike when you get to walk through a big patch of Mountain Laurel (Kalmia latifolia) in bloom is a good hike.

I saw a few small blueberries coming into ripeness; heard (and briefly saw) Black-throated Green Warbler (Dendroica virens) (actually, what I saw mght have been a Townsend’s); found lots of a cinquefoil that Wikipedia identifies as Three-toothed Cinquefoil (Sibbaldiopsis tridentata). As I walked on, I saw more laurel, more blueberries, more cinquefoil—a typical pattern of lower diversity under these extreme conditions.

hanging outThe most common butterfly that I saw is dependent on blueberries. This Pink-edged Sulphur (Colias interior) found my gear an irresistible place to hang out for a while. And perhaps to spread some hormones about; I suspect this is a female, because a more strongly patterned male was pestering her.

well-markedpretty streamThe Bear Rocks Trail is the “oh, let’s do the longer 10 mile loop” trail. Well-marked, a fun little stream to cross. The saddle you drop into before rising to meet the Raven Ridge Trail feels like walking into Brigadoon.

convenientEven a boardwalk over the wetter patches. This trail leaves you wondering about what all the fuss is about following trails in this wilderness, and about the quality of the Forest Service’s maps.

stone pagodaThe Rocky Ridge Trail, on the west side of the tract, isn’t so clearly marked, at least not officially. The informal cairns (not quite to Boy Scout standards) keep you on the path.

trail?The Dobbin Grade Trail, a repurposed railroad grade, is the “dear lord, let’s just get home, OK?” trail. Poorly marked; after normal rains, there are substantial patches that are nothing but bog. Mind you, the guidebooks warn about this. The problem is that there’s nowhere for rain runoff to go, turning the sphagnum into a spongey gumbo. The trick I learned (too late) is this: if it looks wet, use your stick to find rock under it. If you don’t, you go in the goop over your boots.

And I had my opportunity to reroute my return over the Raven Ridge Trail. But I can be stubborn sometimes.

I suspect that the Forest Service is trying to exercise benign neglect on this useful trail that connects to many others. I think they would like to discourage hikers from using the track, since trail users are forced off trail and into the veg whenever a wet spot appears, disrupting the life of the bog.

A longer walk than I originally planned, seduced as I was by the easy going on the Bear Rocks Trail. There is some climbing, but I didn’t track the elevation change. 7:45 for 10.8 miles, with a generous lunch break and birding from time to time. Overreached myself a little bit, as I had nothing left in the tank for the last mile or two, and I dropped plans of further hiking for the next day.

Note for next time: I used a chain motel back in Woodstock, Va. as my base camp for this trip. It’s a 2-plus-hour drive from Woodstock to the wilderness. Next time, I’d like to try one of the smart-looking cottages along route 55 in Petersburg, rented by the Smoke Hole Resort. From there, route 28/7 and the Forest Service roads into the wilderness is just five minutes away.

Update: There’s an orphaned article by Andy Hiltz about the area that has some useful information.

Update (8 May 2024): Andy Hiltz’s article, archived.

Gateway drug

Tawny Fletcher tempers her exuberant invitation to beginning birders with visits to experts Kimball Garrett and Alvaro Jaramillo.

Los Angeles County: home to Hollywood, the Sunset Strip and some of the awesomest birding hotspots in the country.

“It’s partly, of course, because there are so many people here that if a bird shows up, somebody’s going to find it,” explains Garrett. “But it’s mostly because of the diversity of habitat.” We’re talking mountains, marshes, coastline, chaparral, desert, oak woodland and more, people! That’s a lot of different kinds of food and shelter that are irresistible to a lot of different kinds of birds.

Birdchat