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作者Lee,Chun- Cheng;Fu, Yuchen;Yeh, Chia- fen; Yeung, Carol K. L.;Hung, Hsin- yi;Yao, Chiou-Ju;Shaner, Pei- Jen Lee;Li, Shou- Hsien
出版日期202109
著作名稱Morphological variations in a widely distributed Eastern Asian passerine cannot be consistently explained by ecogeographic rules
刊名Ecology and Evolution
11
頁數15249-15260
被收錄索引SCI;SCI
主題動物;動物
關鍵字Allen's rule, Bergmann's rule, ecogeographic rule, Gloger's rule, morphometrics, plumage coloration
摘要Ecogeographic rules that describe quantitative relationships between morphologies and climate might help us predict how morphometrics of animals was shaped by local temperature or humidity. Although the ecogeographic rules had been widely tested in animals of Europe and North America, they had not been fully validated for species in regions that are less studied. Here, we investigate the morphometric variation of a widely distributed East Asian passerine, the vinous- throated parrotbill (Sinosuthora webbiana), to test whether its morphological variation conforms to the prediction of Bergmann's rule, Allen's rules, and Gloger's rule. We at first described the climatic niche of S. webbiana from occurrence records (n = 7838) and specimen records (n = 290). The results of analysis of covariance (ANCOVA) suggested that the plumage coloration of these parrotbills was darker in wetter/warmer environments following Gloger's rule. However, their appendage size (culmen length, beak volume, tarsi length) was larger in colder environments, the opposite of the predictions of Allen's rule. Similarly, their body size (wing length) was larger in warmer environments, the opposite of the predictions of Bergmann's rule. Such disconformity to both Bergmann's rule and Allen's rule suggests that the evolution of morphological variations is likely governed by multiple selection forces rather than dominated by thermoregulation. Our results suggest that these ecogeographic rules should be validated prior to forecasting biological responses to climate change especially for species in less- studied regions.
DOIDOI: 10.1002/ece3.8208
系統號NO000006321

May 10 2024 17:17:25
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