气候变化领域集成服务门户(CCPortal): The impacts of extreme El Niño events on sea turtle nesting populations

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DOI	10.1007/s10584-020-02658-w
	The impacts of extreme El Niño events on sea turtle nesting populations
	Santidrián Tomillo P.; Fonseca L.G.; Ward M.; Tankersley N.; Robinson N.J.; Orrego C.M.; Paladino F.V.; Saba V.S.
发表日期	2020
ISSN	0165-0009
起始页码	163
结束页码	176
卷号	159 期号:2
英文摘要	The El Niño Southern Oscillation (ENSO) is the predominant interannual pattern of climate variability in the world and may become extreme approximately once every 20 years. Climate-forced interannual variability in fecundity rates of long-lived species are well-studied, but the effect of extreme events is less clear. Here, we analyzed the effect of the extreme 2015–16 El Niño event on three long-lived sea turtle species in a region highly influenced by ENSO. The effect of this extreme event varied considerably among species. While reproductive success dramatically declined in leatherback turtles (Dermochelys coriacea), the reduction was only marginal in green turtles (Chelonia mydas). Nevertheless, the number of nesting green turtles decreased following the extreme El Niño event, likely due to decreased ocean productivity. We used global climate models to project an increase in the decadal occurrence of extreme events from ~ 0.7 events (beginning of twentieth century) to ~ 2.9 events per decade (end of twenty-first century). This resulted in a projected decline in the reproductive success of leatherback turtles (~ 19%), a milder decline in olive ridley turtles (Lepidochelys olivacea) (~ 7%), and no decline in green turtles (~ 1%). Extreme El Niño events can have a strong detrimental effect on East Pacific leatherback turtles, a population that is already critically endangered due to other anthropogenic impacts. Our results highlight the importance of conducting species-specific and site-specific analyses of climatic impacts on sea turtles. © 2020, Springer Nature B.V.
英文关键词	Climate change; ENSO; Extreme events; Long-lived; Reproductive success; Sea turtles
语种	英语
scopus关键词	Atmospheric pressure; Climate change; ENSO; Extreme events; Long-lived; Reproductive success; Sea turtles; Climate models; annual variation; climate change; climate effect; El Nino-Southern Oscillation; extreme event; fecundity; global climate; nesting; reproductive success; turtle; Pacific Ocean; Pacific Ocean (East); Chelonia mydas; Cheloniidae; Dermochelyidae; Dermochelys coriacea; Lepidochelys olivacea; Testudines
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147223
作者单位	The Leatherback Trust, Goldring-Gund Marine Biology Station, Playa Grande, Costa Rica; Latin American Sea Turtles, San José, Tibás, Costa Rica; Sea Turtles Forever, Seaside, OR, United States; Cape Eleuthera Institute, Cape Eleuthera Island School, Eleuthera, Bahamas; Ministry of Environment and Energy, San José, Costa Rica; Purdue University, Fort Wayne, IN, United States; National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northeast Fisheries Science Center, Geophysical Fluid Dynamics Laboratory, Princeton University, Princeton, NJ, United States
推荐引用方式 GB/T 7714	Santidrián Tomillo P.,Fonseca L.G.,Ward M.,et al. The impacts of extreme El Niño events on sea turtle nesting populations[J],2020,159(2).
APA	Santidrián Tomillo P..,Fonseca L.G..,Ward M..,Tankersley N..,Robinson N.J..,...&Saba V.S..(2020).The impacts of extreme El Niño events on sea turtle nesting populations.Climatic Change,159(2).
MLA	Santidrián Tomillo P.,et al."The impacts of extreme El Niño events on sea turtle nesting populations".Climatic Change 159.2(2020).