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University of Tennessee professor links massive prehistoric bird extinction to human colonization
Date:4/1/2013

fered depending on island and species characteristics. For example, larger islands had lower rates of extinction because they had larger populations of each bird species. Islands with more rainfall also had lower extinction rates because they experienced less deforestation by settlers. Bird species that were flightless and large-bodied had a higher rate of extinction because they were easier and more profitable to hunt and their lower rates of population growth inhibited recovery from overhunting or habitat loss.

"Flightless species were 33 times more likely to go extinct than those that could fly," said Boyer. "Also, species that only populated a single island were 24 more times likely to go extinct than widespread species."


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Contact: Whitney Heins
wheins@utk.edu
865-974-5460
University of Tennessee at Knoxville
Source:Eurekalert

Page: 1 2

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