气候变化领域集成服务门户(CCPortal): An early Miocene extinction in pelagic sharks

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DOI	10.1126/science.aaz3549
	An early Miocene extinction in pelagic sharks
	Sibert E.C.; Rubin L.D.
发表日期	2021
ISSN	0036-8075
起始页码	1105
结束页码	1107
卷号	372 期号:6546
英文摘要	Shark populations have been decimated in recent decades because of overfishing and other anthropogenic stressors; however, the long-term impacts of such changes in marine predator abundance and diversity are poorly constrained. We present evidence for a previously unknown major extinction event in sharks that occurred in the early Miocene, ~19 million years ago. During this interval, sharks virtually disappeared from open-ocean sediments, declining in abundance by >90% and morphological diversity by >70%, an event from which they never recovered. This abrupt extinction occurred independently from any known global climate event and ~2 million to 5 million years before diversifications in the highly migratory, large-bodied predators that dominate pelagic ecosystems today, indicating that the early Miocene was a period of rapid, transformative change for open-ocean ecosystems. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	abundance; global climate; long-term change; Miocene; morphology; open ocean; shark; article; ecosystem; global climate; mass extinction; Middle Miocene; nonhuman; overfishing; predator; sea; sediment; shark; anatomy and histology; animal; ecosystem; fish; fossil; physical anthropology; species extinction; tooth; Chondrichthyes; Animals; Ecosystem; Extinction, Biological; Fishes; Fossils; Geologic Sediments; Oceans and Seas; Paleodontology; Sharks; Tooth
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245485
作者单位	Harvard Society of Fellows, Harvard University, Cambridge, MA 02138, United States; Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, United States; Department of Earth and Planetary Sciences, Yale University, New Haven, CT 06511, United States; College of the Atlantic, Bar Harbor, ME 04609, United States
推荐引用方式 GB/T 7714	Sibert E.C.,Rubin L.D.. An early Miocene extinction in pelagic sharks[J],2021,372(6546).
APA	Sibert E.C.,&Rubin L.D..(2021).An early Miocene extinction in pelagic sharks.Science,372(6546).
MLA	Sibert E.C.,et al."An early Miocene extinction in pelagic sharks".Science 372.6546(2021).