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Nearly One-Tenth of Hemisphere’s Mammals Unlikely to Outrun Climate Change

By Guest PostMay 15, 2012Environment, Natureanteaters, armadillos, Berkeley, caribou, carnivore, carrie schloss, cedar tree foundation, climate change, coyotes, deer, emission scenario, generation, global climate, greenhouse gas, habitat, hemisphere, howler monkeys, human influence, joshua lawler, mammal, marmosets, model, nature conservancy, sexually mature, species of primates, spider monkeys, tamarins, tristan nunez, tropics, university of california, university of washington, vulnerability, western hemisphere, wolves

A safe haven could be out of reach for 9 percent of the Western Hemisphere’s mammals, and as much as 40 percent in certain regions, because the animals just won’t move swiftly enough to outpace climate change.

For the past decade scientists have outlined new areas suitable for mammals likely to be displaced as climate change first makes their current habitat inhospitable, then unlivable. For the first time a new study considers whether mammals will actually be able to move to those new areas before they are overrun by climate change. Carrie Schloss, University of Washington research analyst in environmental and forest sciences, is lead author of the paper out online the week of May 14 in the Proceedings of the National Academy of Sciences. (more…)

A Bird’s Song May Teach Us About Human Speech Disorders

*UCLA scientists identify 2,000 important genes*

Can the song of a small bird provide valuable insights into human stuttering and speech-related disorders and conditions, including autism and stroke? New research by UCLA life scientists and colleagues provides reason for optimism.

The scientists discovered that some 2,000 genes in a region of the male zebra finch’s brain known as “Area X” are significantly linked to singing. More than 1,500 genes in this region, a critical part of the bird’s song circuitry, are being reported for the first time. Previously, a group of scientists including the UCLA team had identified some 400 genes in Area X. All the genes’ levels of expression change when the bird sings. (more…)

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Nearly One-Tenth of Hemisphere’s Mammals Unlikely to Outrun Climate Change

A Bird’s Song May Teach Us About Human Speech Disorders