Climate-driven feather morphology of Neotropical birds

Climate-driven feather morphology of Neotropical birds | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 3 June 2025 V1 Latest version Share on Climate-driven feather morphology of Neotropical birds Authors : Mariana Quintero Arenas 0009-0009-6372-6013 [email protected] , Gustavo Bravo , and Gustavo A. Londono 0000-0003-1896-8653 Authors Info & Affiliations https://doi.org/10.22541/au.174895762.23324682/v1 221 views 170 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract The effects of environmental gradients on feather structure and function remain underexplored. We explored how temperature, rainfall, and body size influence feather morphology in 444 neotropical bird species from Colombian sites spanning 600 to 2500 meters in elevation and 732 to 7337 millimeters of rain. We found that temperature is the primary predictor of feather morphology variation, with a significant contribution from rainfall. Birds exposed to high rainfall have a downy region 4.4% larger in area than those under lower rainfall regimes. Birds inhabiting environments with low temperatures have 4% more downy area than those in hotter places. These changes in the area of the downy region of breast, back, and head feathers suggests differences in thermoregulatory demands across body regions. Our study shows that rainfall and temperature shape the general structure of contour feathers in “stable” climatic regions, providing insights into the evolutionary processes driving morphological diversity among birds. Supplementary Material File (manuscript.pdf) Download 2.07 MB Information & Authors Information Version history V1 Version 1 03 June 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords down environmental gradients feather structure neotropical birds rainfall temperature thermal insulation trade-off Authors Affiliations Mariana Quintero Arenas 0009-0009-6372-6013 [email protected] Princeton University View all articles by this author Gustavo Bravo Harvard University View all articles by this author Gustavo A. Londono 0000-0003-1896-8653 Univ ICESI View all articles by this author Metrics & Citations Metrics Article Usage 221 views 170 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Mariana Quintero Arenas, Gustavo Bravo, Gustavo A. Londono. Climate-driven feather morphology of Neotropical birds. Authorea . 03 June 2025. DOI: https://doi.org/10.22541/au.174895762.23324682/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. 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