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13 November 2007

Mini-Symposium: Research at the Balcones Canyonlands National Wildlife Refuge

We are organising a mini-symposium about research at the Balcones Canyonlands NWR on the University of Texas--Austin campus for Friday, 25 January 2008, from 2.30 -6.00 p.m. at the Atrium (FAC 419). There will be 15-minute talks followed by general discussion. All researchers are invited to present their projects and we will try to accommodate as many talks as possible. Even if you do not wish to present a talk, please try to attend.

The audience will include several students who are considering doing research or otherwise volunteering at the Refuge. At the end we will retire to the Scholz Beer Garden.

If you wish to present some work, please send me a title as soon as possible (even if it is tentative). In any case, I would like to hear from everyone who plans to come. It will be a great occasion for those working at the Refuge to interact with each other. With luck, it will spur more research across disciplines and universities.

31 July 2006

Stakeholder Involvement in Systematic Conservation Planning

I have a new entry on stakeholders in our other blog, Systematic Conservation Planning, that may interest some of the readers of this blog.

16 July 2006

The Prowling Naturalist: Sierra Norte de Oaxaca: Setting Traps for a Puma

Much of the land around La Cumbre is communally managed by the local people, who are all of Zapotec origin. There are extensive forests which were logged from 1956 to 1982 before the community regained control of their land. The forests have recovered remarkably well thanks to active restoration efforts (e. g., seed trees, tree planting) by the community [1]. Scattered farms, often growing corn, are interspersed with the forests. Some areas are still logged selectively, with native pines being the only timber of commercial importance. Oak and other trees are only harvested for local use, mainly as firewood. In many years, the annual quota (12 900 cu. m. of pine and 3 080 cu. m. of oak) imposed by federal agencies is not even met—the locals don’t view that as a loss of potential revenue because the trees remain standing [1]. Few locally managed integrated conservation and resource extraction plans have been as impressive as the one in Ixtepeji.

Part of our purpose in being there was to try to trap a puma (Puma concolor) that had been preying upon livestock, most recently a calf, at a farm close to La Cumbre, on the other side of Highway 175. A three-kilometer hike from the restaurant brought us there. We went over a moderately steep ridge, fairly tough going after an inappropriately heavy breakfast. (Good food doesn’t contribute well to good natural history.) As is typical for this area, mixed oak and pine forest gave way to pure pine at the top, almost entirely Pinus oaxacana. It was wet, with Spanish moss and a bewildering variety of epiphytes adorning the trees. There were mushrooms everywhere of a variety of colors and sizes, and Victor duly noted that Mexico’s mushrooms remained poorly studied. (Wild mushrooms are harvested in Ixtepeji for export to Japan [1], and many varieties are locally consumed but it takes some experience to distinguish the edible ones from the poisonous. It is more than likely that there are mushroom species here that have yet to be scientifically described.) We continued to enjoy the remarkable—and remarkably little-studied—biodiversity of Oaxaca.

Continue reading "The Prowling Naturalist: Sierra Norte de Oaxaca: Setting Traps for a Puma" »

24 April 2006

Bush Contributes to Extinction in His Very Own Way

Read how Bush harassed the endangered Peninsular bighorn sheep (Ovis canadensis) which has been federally listed since 18 March 1998. Reasons for its endangerment include human disturbance.