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US desert songbirds at risk in a warming climate

from Global Climate Change

Projected increases in the frequency, intensity and duration of heatwaves in the desert of the southwestern United States are putting songbirds at greater risk for death by dehydration and mass die-offs, according to a new study. Researchers used hourly temperature maps and other data produced by the North American Land Data Assimilation System (NLDAS) — a land-surface modeling effort maintained by NASA and other organizations — along with physiological data to investigate how rates of evaporative water loss in response to high temperatures varied among five bird species with differing body masses. more


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