气候变化领域集成服务门户(CCPortal): Biodiversity of coral reef cryptobiota shuffles but does not decline under the combined stressors of ocean warming and acidification

CCPortal

DOI	10.1073/pnas.2103275118
	Biodiversity of coral reef cryptobiota shuffles but does not decline under the combined stressors of ocean warming and acidification
	Timmers M.A.; Jury C.P.; Vicente J.; Bahr K.D.; Webb M.K.; Toonen R.J.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:39
英文摘要	Ocean-warming and acidification are predicted to reduce coral reef biodiversity, but the combined effects of these stressors on overall biodiversity are largely unmeasured. Here, we examined the individual and combined effects of elevated temperature (+2 °C) and reduced pH (-0.2 units) on the biodiversity of coral reef communities that developed on standardized sampling units over a 2-y mesocosm experiment. Biodiversity and species composition were measured using amplicon sequencing libraries targeting the cytochrome oxidase I (COI) barcoding gene. Ocean-warming significantly increased species richness relative to present-day control conditions, whereas acidification significantly reduced richness. Contrary to expectations, species richness in the combined future ocean treatment with both warming and acidification was not significantly different from the present-day control treatment. Rather than the predicted collapse of biodiversity under the dual stressors, we find significant changes in the relative abundance but not in the occurrence of species, resulting in a shuffling of coral reef community structure among the highly species-rich cryptobenthic community. The ultimate outcome of altered community structure for coral reef ecosystems will depend on species-specific ecological functions and community interactions. Given that most species on coral reefs are members of the understudied cryptobenthos, holistic research on reef communities is needed to accurately predict diversity-function relationships and ecosystem responses to future climate conditions. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	ARMS; Climate change; COI metabarcoding; Cryptobenthic; Mesocosm
语种	英语
scopus关键词	cytochrome c oxidase; cytochrome oxidase I; unclassified drug; acid; Article; benthos; biodiversity; biota; climate change; climate warming; community dynamics; community structure; controlled study; coral reef; cryptobiota; DNA barcoding; environmental stress; gene sequence; high temperature; nonhuman; ocean acidification; pH; population abundance; species composition; species richness; animal; Anthozoa; climate change; ecosystem; physiological stress; physiology; sea; Acids; Animals; Anthozoa; Biodiversity; Climate Change; Coral Reefs; Ecosystem; Hydrogen-Ion Concentration; Oceans and Seas; Stress, Physiological
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/238366
作者单位	Pristine Seas, National Geographic Society, Washington, DC 20036, United States; Hawai'i Institute of Marine Biology, School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, Honolulu, HI 96744, United States; Department of Life Sciences, Texas AandM University-Corpus Christi, Corpus Christi, TX 78412, United States
推荐引用方式 GB/T 7714	Timmers M.A.,Jury C.P.,Vicente J.,et al. Biodiversity of coral reef cryptobiota shuffles but does not decline under the combined stressors of ocean warming and acidification[J],2021,118(39).
APA	Timmers M.A.,Jury C.P.,Vicente J.,Bahr K.D.,Webb M.K.,&Toonen R.J..(2021).Biodiversity of coral reef cryptobiota shuffles but does not decline under the combined stressors of ocean warming and acidification.Proceedings of the National Academy of Sciences of the United States of America,118(39).
MLA	Timmers M.A.,et al."Biodiversity of coral reef cryptobiota shuffles but does not decline under the combined stressors of ocean warming and acidification".Proceedings of the National Academy of Sciences of the United States of America 118.39(2021).