July 24, 2023
For birds, earlier springtime means fewer young
Rising global temperatures are making it harder for birds to know when it’s spring and time to breed according to a new study published in Proceedings of the National Academy of Sciences. A large collaboration led by Michigan State University integrative biologist Casey Youngflesh in partnership with the University of California, Los Angeles, has found that birds produce fewer young if they start breeding too early or late in the season. With climate change resulting in earlier springlike weather, the researchers report, birds have been unable to keep pace.
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