气候变化领域集成服务门户(CCPortal): Nitrogen pollution interacts with heat stress to increase coral bleaching across the seascape

CCPortal

DOI	10.1073/pnas.1915395117
	Nitrogen pollution interacts with heat stress to increase coral bleaching across the seascape
	Donovan M.K.; Adam T.C.; Shantz A.A.; Speare K.E.; Munsterman K.S.; Rice M.M.; Schmitt R.J.; Holbrook S.J.; Burkepile D.E.
发表日期	2020
ISSN	0027-8424
起始页码	5351
结束页码	5357
卷号	117 期号:10
英文摘要	Climate change is increasing the frequency and magnitude of temperature anomalies that cause coral bleaching, leading to widespread mortality of stony corals that can fundamentally alter reef structure and function. However, bleaching often is spatially variable for a given heat stress event, and drivers of this heterogeneity are not well resolved. While small-scale experiments have shown that excess nitrogen can increase the susceptibility of a coral colony to bleaching, we lack evidence that heterogeneity in nitrogen pollution can shape spatial patterns of coral bleaching across a seascape. Using island-wide surveys of coral bleaching and nitrogen availability within a Bayesian hierarchical modeling framework, we tested the hypothesis that excess nitrogen interacts with temperature anomalies to alter coral bleaching for the two dominant genera of branching corals in Moorea, French Polynesia. For both coral genera, Pocillopora and Acropora, heat stress primarily drove bleaching prevalence (i.e., the proportion of colonies on a reef that bleached). In contrast, the severity of bleaching (i.e., the proportion of an individual colony that bleached) was positively associated with both heat stress and nitrogen availability for both genera. Importantly, nitrogen interacted with heat stress to increase bleaching severity up to twofold when nitrogen was high and heat stress was relatively low. Our finding that excess nitrogen can trigger severe bleaching even under relatively low heat stress implies that mitigating nutrient pollution may enhance the resilience of coral communities in the face of mounting stresses from global climate change. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Acropora; Climate change; Coral reef; Nutrient availability; Pocillopora
语种	英语
scopus关键词	nitrogen; nitrogen; Acropora; Article; bleaching; climate change; climate resilience; controlled study; coral; coral reef; French Polynesia; heat stress; nitrogen availability; nonhuman; Pocillopora; priority journal; sea pollution; animal; Anthozoa; climate change; green alga; growth, development and aging; heat; heat shock response; island (geological); physiology; pollution; Polynesia; symbiosis; Animals; Anthozoa; Chlorophyta; Climate Change; Environmental Pollution; Heat-Shock Response; Hot Temperature; Islands; Nitrogen; Polynesia; Symbiosis
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/161027
作者单位	Donovan, M.K., Marine Science Institute, University of California, Santa Barbara, CA 93106, United States; Adam, T.C., Marine Science Institute, University of California, Santa Barbara, CA 93106, United States; Shantz, A.A., Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, United States, Department of Biology, Pennsylvania State University, University Park, PA 16802, United States; Speare, K.E., Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, United States; Munsterman, K.S., Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, United States; Rice, M.M., Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, United States; Schmitt, R.J., Marine Science Institute, University of California, Santa Barbara, CA 93106, United States, Department of Ecology, Evolution, and Marine Biology, Univer...
推荐引用方式 GB/T 7714	Donovan M.K.,Adam T.C.,Shantz A.A.,et al. Nitrogen pollution interacts with heat stress to increase coral bleaching across the seascape[J],2020,117(10).
APA	Donovan M.K..,Adam T.C..,Shantz A.A..,Speare K.E..,Munsterman K.S..,...&Burkepile D.E..(2020).Nitrogen pollution interacts with heat stress to increase coral bleaching across the seascape.Proceedings of the National Academy of Sciences of the United States of America,117(10).
MLA	Donovan M.K.,et al."Nitrogen pollution interacts with heat stress to increase coral bleaching across the seascape".Proceedings of the National Academy of Sciences of the United States of America 117.10(2020).