Migratory Birds Shrinking as Climate Warms, New Analysis of Four-Decade Record Shows: University of Michigan
December 05, 2019
December 05, 2019
ANN ARBOR, Michigan, Dec. 5 [TNSbiologyresearch-Ecology Letters journal] -- The University of Michigan issued the following news release:
North American migratory birds have been getting smaller over the past four decades, and their wings have gotten a bit longer. Both changes appear to be responses to a warming climate.
Those are the main findings from a new University of Michigan-led analysis of a dataset of some 70,000 North American migratory birds from 52 species t . . .
North American migratory birds have been getting smaller over the past four decades, and their wings have gotten a bit longer. Both changes appear to be responses to a warming climate.
Those are the main findings from a new University of Michigan-led analysis of a dataset of some 70,000 North American migratory birds from 52 species t . . .