气候变化领域集成服务门户(CCPortal): Accelerated body size evolution during cold climatic periods in the Cenozoic

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DOI	10.1073/pnas.1606868114
	Accelerated body size evolution during cold climatic periods in the Cenozoic
	Clavel J.; Morlon H.
发表日期	2017
ISSN	0027-8424
起始页码	4183
结束页码	4188
卷号	114 期号:16
英文摘要	How ecological and morphological diversity accumulates over geological time is much debated. Adaptive radiation theory has been successful in testing the effects of biotic interactions on the rapid divergence of phenotypes within a clade, but this theory ignores abiotic effects. The role of abiotic drivers on the tempo of phenotypic evolution has been tested only in a few lineages or small clades from the fossil record. Here, we develop a phylogenetic comparative framework for testing if and how clade-wide rates of phenotypic evolution vary with abiotic drivers. We apply this approach to comprehensive bird and mammal phylogenies, body size data for 9,465 extant species, and global average temperature trends over the Cenozoic. Across birds and mammals, we find that the rate of body size evolution is primarily driven by past climate. Unexpectedly, evolutionary rates are inferred to be higher during periods of cold rather than warm climates in most groups, suggesting that temperature influences evolutionary rates by modifying selective pressures rather than through its effect on energy availability and metabolism. The effect of climate on the rate of body size evolution seems to be a general feature of endotherm evolution, regardless of wide differences in species' ecology and evolutionary history. These results suggest that climatic changes played a major role in shaping species' evolution in the past and could also play a major role in shaping their evolution in the future.
英文关键词	Climate; Endotherms; Evolutionary rates; Macroevolution; Phylogenetics
语种	英语
scopus关键词	Article; body size; Cenozoic; cold climate; Dasyuromorphia; Diprotodontia; environmental temperature; evolutionary rate; extant species; maximum likelihood method; Meliphagidae; molecular evolution; nonhuman; Pacific islands; phenotype; phylogeny; primate; priority journal; Procellariiformes; Ramphastidae; species richness; temperature dependence; temperature sensitivity; Thamnophilidae; Africa; anatomy and histology; animal; ecosystem; evolution; mammal; phenotype; Africa, Eastern; Animals; Biological Evolution; Body Size; Cold Climate; Ecosystem; Mammals; Phenotype
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160642
作者单位	Clavel, J., Institut de Biologie de L'École Normale Supérieure (IBENS), CNRS UMR 8197, INSERM U1024, École Normale Supérieure, Paris Sciences et Lettres (PSL) Research University, Paris, F-75005, France; Morlon, H., Institut de Biologie de L'École Normale Supérieure (IBENS), CNRS UMR 8197, INSERM U1024, École Normale Supérieure, Paris Sciences et Lettres (PSL) Research University, Paris, F-75005, France
推荐引用方式 GB/T 7714	Clavel J.,Morlon H.. Accelerated body size evolution during cold climatic periods in the Cenozoic[J],2017,114(16).
APA	Clavel J.,&Morlon H..(2017).Accelerated body size evolution during cold climatic periods in the Cenozoic.Proceedings of the National Academy of Sciences of the United States of America,114(16).
MLA	Clavel J.,et al."Accelerated body size evolution during cold climatic periods in the Cenozoic".Proceedings of the National Academy of Sciences of the United States of America 114.16(2017).