Image - 24 January 2017

Male collared flycatcher

Male collared flycatcher with white forehead patch clearly displayed.

License:: Creative Commons Attribution, no derivatives
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By:: Johan Träff
File format:: .jpg
Size:: 2637 x 1758, 829 KB

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Climate change altered the natural selection – large forehead patch no longer a winner

In a new study, researchers at Uppsala University have found evidence of that climate change upends selection of face characteristics in the collared flycatcher. During the study the annual fitness selection on forehead patch size switched from positive to negative, a reversal that is accounted for by rising spring temperatures at the breeding site.

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