气候变化领域集成服务门户(CCPortal): Contrasting responses of functional diversity to major losses in taxonomic diversity

CCPortal

DOI	10.1073/pnas.1717636115
	Contrasting responses of functional diversity to major losses in taxonomic diversity
	Edie S.M.; Jablonski D.; Valentine J.W.
发表日期	2018
ISSN	0027-8424
起始页码	732
结束页码	737
卷号	115 期号:4
英文摘要	Taxonomic diversity of benthic marine invertebrate shelf species declines at present by nearly an order of magnitude from the tropics to the poles in each hemisphere along the latitudinal diversity gradient (LDG), most steeply along the western Pacific where shallow-sea diversity is at its tropical maximum. In the Bivalvia, a model system for macroevolution and macroecology, this taxonomic trend is accompanied by a decline in the number of functional groups and an increase in the evenness of taxa distributed among those groups, with maximum functional evenness (FE) in polar waters of both hemispheres. In contrast, analyses of this model system across the two era-defining events of the Phanerozoic, the Permian–Triassic and Cretaceous–Paleogene mass extinctions, show only minor declines in functional richness despite high extinction intensities, resulting in a rise in FE owing to the persistence of functional groups. We hypothesize that the spatial decline of taxonomic diversity and increase in FE along the present-day LDG primarily reflect diversity-dependent factors, whereas retention of almost all functional groups through the two mass extinctions suggests the operation of diversity-independent factors. Comparative analyses of different aspects of biodiversity thus reveal strongly contrasting biological consequences of similarly severe declines in taxonomic diversity and can help predict the consequences for functional diversity among different drivers of past, present, and future biodiversity loss.
英文关键词	Functional diversity; Latitudinal diversity gradient; Mass extinction; Taxonomic diversity
语种	英语
scopus关键词	adaptation; Article; biodiversity; bivalve; comparative study; latitude; mass extinction; nonhuman; priority journal; sea; species diversity; taxonomy; animal; biological model; classification; computer simulation; factual database; fossil; geography; history; invertebrate; phylogeography; procedures; species differentiation; species extinction; Animals; Biodiversity; Bivalvia; Classification; Computer Simulation; Databases, Factual; Extinction, Biological; Fossils; Genetic Speciation; Geography; History, Ancient; Invertebrates; Models, Biological; Phylogeography
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/160549
作者单位	Edie, S.M., Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637, United States; Jablonski, D., Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637, United States; Valentine, J.W., Department of Integrative Biology, University of California, Berkeley, CA 94720, United States, Museum of Paleontology, University of California, Berkeley, CA 94720, United States
推荐引用方式 GB/T 7714	Edie S.M.,Jablonski D.,Valentine J.W.. Contrasting responses of functional diversity to major losses in taxonomic diversity[J],2018,115(4).
APA	Edie S.M.,Jablonski D.,&Valentine J.W..(2018).Contrasting responses of functional diversity to major losses in taxonomic diversity.Proceedings of the National Academy of Sciences of the United States of America,115(4).
MLA	Edie S.M.,et al."Contrasting responses of functional diversity to major losses in taxonomic diversity".Proceedings of the National Academy of Sciences of the United States of America 115.4(2018).