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CONTINENT-WIDE PATTERNS OF SONG VARIATION PREDICTED BY CLASSICAL RULES OF BIOGEOGRAPHY
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  • Matteo Sebastianelli,
  • Sifiso Lukhele,
  • Emmanuel Nwankwo,
  • Louis Hadjioannou,
  • Alex Kirschel
Matteo Sebastianelli
University of Cyprus Faculty of Pure and Applied Sciences
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Sifiso Lukhele
University of Cyprus Faculty of Pure and Applied Sciences
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Emmanuel Nwankwo
University of Cyprus Faculty of Pure and Applied Sciences
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Louis Hadjioannou
University of Cyprus Faculty of Pure and Applied Sciences
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Alex Kirschel
University of Cyprus Faculty of Pure and Applied Sciences
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Abstract

Physiological constraints related to atmospheric temperature pose a limit to body and appendage size in endothermic animals. This relationship has been summarized by two classical principles of biogeography: Bergmann’s and Allen’s rules. Body size may also constrain other phenotypic traits important in ecology, evolution and behaviour, and such effects have seldom been investigated at a continental scale. Through a multilevel-modelling approach, we demonstrate that continent-wide morphology of related African barbets follows predictions of both ecogeographic rules, and that body size mirrors variation in song pitch, an acoustic trait important in species recognition and sexual selection. Specifically, effects on song frequency in accordance with Bergmann’s rule dwarf those of acoustic adaptation at a continental scale. Our findings suggest that macroecological patterns of body size can influence phenotypic traits important in ecology and evolution, and provide a baseline for further studies on the effects of environmental change on bird song.
27 Feb 2022Submitted to Ecology Letters
28 Feb 2022Submission Checks Completed
28 Feb 2022Assigned to Editor
07 Mar 2022Reviewer(s) Assigned
02 Apr 2022Review(s) Completed, Editorial Evaluation Pending
05 Apr 2022Editorial Decision: Revise Major
16 Jun 20221st Revision Received
17 Jun 2022Assigned to Editor
17 Jun 2022Submission Checks Completed
21 Jun 2022Reviewer(s) Assigned
14 Jul 2022Review(s) Completed, Editorial Evaluation Pending
19 Jul 2022Editorial Decision: Revise Minor
12 Aug 20222nd Revision Received
16 Aug 2022Assigned to Editor
16 Aug 2022Submission Checks Completed
17 Aug 2022Review(s) Completed, Editorial Evaluation Pending
17 Aug 2022Editorial Decision: Accept
20 Sep 2022Published in Ecology Letters. 10.1111/ele.14102