A explicação darwinista sobre a evolução dos bicos de aves questionada em nova pesquisa!

quinta-feira, janeiro 24, 2019

Digest: Evolution of shape and leverage of bird beaks reflects feeding ecology, but not as strongly as expected

Sam Van Wassenbergh,  Simon Baeckens

First published: 22 January 2019

This article corresponds to Navalón, G., J. A. Bright, J. Marugán‐Lobón, and E. J. Rayfield. 2019. The evolutionary relationship between beak shape, mechanical advantage, and feeding ecology in modern birds. Evolution. https://doi.org/10.1111/evo.13655.

This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as https://doi.org/10.1111/evo.13686

Source/Fonte: Science Daily


Is feeding ecology the main driver of beak diversification in modern birds? Taking a broad‐scale interspecific comparative approach, Navalón et al. (2019) found a relationship between feeding ecology (diet and feeding behavior) and beak morphology (shape and leverage), although much of the observed variation remained unexplained. This low explanatory power may suggest that variation in the multitude of non‐feeding functions of the beak also influences its evolution.

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