Ultra-endurance athletic performance suggests that energetics drive human morphological thermal adaptation by Daniel P. Longman, Alison Macintosh Murray, Rebecca Roberts, Saskia Oakley, Jonathan C.K. Wells, Jay T. Stock

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Energetics as a driver of human morphological thermal adaptation; evidence from female ultra-endurance athletes by Daniel P. Longman, Alison Murray, Rebecca Roberts, Saskia Oakley, Jonathan C. K. Wells, Jay T. Stock

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The benefits of being smaller: Consistent pattern for climate-induced range shift and morphological difference of three falconiforme species by Aichun Xu, Ji Zhang, Qian Li, Zhongqiu Li, Qin Zhu

Subjects: “…Allen's rule…”
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Variation in bill surface area is associated with local climatic factors across populations of the plain laughingthrush by Pengfei Liu, Yingqiang Lou, Jingxiao Yao, Linghui Wang, Anders Pape Møller, Yuehua Sun

Subjects: “…Allen's rule…”
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Effects of climate on bill morphology within and across Toxostoma thrashers by Charlotte M. Probst, Joel Ralston, Ian Bentley

Subjects: “…Allen's rule…”
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Challenging ecogeographical rules: Phenotypic variation in the Mountain Treeshrew (Tupaia montana) along tropical elevational gradients. by Arlo Hinckley, Ines Sanchez-Donoso, Mar Comas, Miguel Camacho-Sanchez, Melissa T R Hawkins, Noor Haliza Hasan, Jennifer A Leonard

“…Bergmann's and Allen's rules were defined to describe macroecological patterns across latitudinal gradients. …”
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Food resources and competition rather than eco-geographic rules explain trait variations in two contrasting rat species: Implications for future climate change by Jifa Cui, Boyu Lei, Chris Newman, Youbing Zhou, Zhiping Wang

“…There was no support for Allen's rule, except for a contrary effect on snout length among females; however, greater intraspecific competition and lesser food abundance were associated with shorter snout length, supporting Geist’s rule. …”
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The incredible shrinking puffin: Decreasing size and increasing proportional bill size of Atlantic puffins nesting at Machias Seal Island. by Heather L Major, Joy E Rivers, Quinn B Carvey, Antony W Diamond

“…Climate change imposes physiological constraints on organisms particularly through changing thermoregulatory requirements. Bergmann's and Allen's rules suggest that body size and the size of thermoregulatory structures differ between warm and cold locations, where body size decreases with temperature and thermoregulatory structures increase. …”
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