Are American pikas harbingers of changing conditions?
Free lecture by Erik Beever, US Geological Survey research ecologist
American pikas are denizens of rocky talus and lava-flow habitats in mountain ecosystems across western North America.
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Mountain environments, cauldrons of climatic harshness, exhibit sharp topographic, vegetative, and climatic gradients.
Pikas are providing scientists with a model for assessing species vulnerability to warming temperatures.
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Are other species and indicators in the animal kingdom equally sensitive to changing climate conditions and warming temperatures?
The lecture will also be webstreamed live at http://online.wr.usgs.gov/calendar/live.html.