气候变化领域集成服务门户(CCPortal): Global warming is causing a more pronounced dip in marine species richness around the equator

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DOI	10.1073/pnas.2015094118
	Global warming is causing a more pronounced dip in marine species richness around the equator
	Chaudhary C.; Richardson A.J.; Schoeman D.S.; Costello M.J.
发表日期	2021
ISSN	00278424
卷号	118 期号:15
英文摘要	The latitudinal gradient in species richness, with more species in the tropics and richness declining with latitude, is widely known and has been assumed to be stable over recent centuries. We analyzed data on 48,661 marine animal species since 1955, accounting for sampling variation, to assess whether the global latitudinal gradient in species richness is being impacted by climate change. We confirm recent studies that show a slight dip in species richness at the equator. Moreover, richness across latitudinal bands was sensitive to temperature, reaching a plateau or declining above a mean annual sea surface temperature of 20 °C for most taxa. In response, since the 1970s, species richness has declined at the equator relative to an increase at midlatitudes and has shifted north in the northern hemisphere, particularly among pelagic species. This pattern is consistent with the hypothesis that climate change is impacting the latitudinal gradient in marine biodiversity at a global scale. The intensification of the dip in species richness at the equator, especially for pelagic species, suggests that it is already too warm there for some species to survive. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Climate change; GAM; Latitudinal gradient; OBIS; Species richness
语种	英语
scopus关键词	animal experiment; article; biodiversity; climate change; greenhouse effect; nonhuman; Northern Hemisphere; pelagic species; sea surface temperature; species richness
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/179895
作者单位	Institute of Marine Science, The University of Auckland, Auckland, 1142, New Zealand; School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, 999077, Hong Kong; School of Mathematics and Physics, The University of Queensland, St Lucia, QLD 4072, Australia; Queensland Biosciences Precinct, Commonwealth Scientific and Industrial Research Organisation Oceans and Atmosphere, St Lucia, QLD 4072, Australia; Global-Change Ecology Research Group, School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD 4556, Australia; Centre for African Conservation Ecology, Department of Zoology, Nelson Mandela University, Port Elizabeth, 6031, South Africa; The School of Environment, The University of Auckland, Auckland, 1142, New Zealand; Faculty of Biosciences and Aquaculture, Nord University, Bodø, 8049, Norway
推荐引用方式 GB/T 7714	Chaudhary C.,Richardson A.J.,Schoeman D.S.,et al. Global warming is causing a more pronounced dip in marine species richness around the equator[J],2021,118(15).
APA	Chaudhary C.,Richardson A.J.,Schoeman D.S.,&Costello M.J..(2021).Global warming is causing a more pronounced dip in marine species richness around the equator.Proceedings of the National Academy of Sciences of the United States of America,118(15).
MLA	Chaudhary C.,et al."Global warming is causing a more pronounced dip in marine species richness around the equator".Proceedings of the National Academy of Sciences of the United States of America 118.15(2021).