气候变化领域集成服务门户(CCPortal): Nonlinear trends in abundance and diversity and complex responses to climate change in Arctic arthropods

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DOI	10.1073/PNAS.2002557117
	Nonlinear trends in abundance and diversity and complex responses to climate change in Arctic arthropods
	Høye T.T.; Loboda S.; Koltz A.M.; Gillespie M.A.K.; Bowden J.J.; Schmidt N.M.
发表日期	2021
ISSN	00278424
卷号	118 期号:2
英文摘要	Time series data on arthropod populations are critical for understanding the magnitude, direction, and drivers of change. However, most arthropod monitoring programs are short-lived and restricted in taxonomic resolution. Monitoring data from the Arctic are especially underrepresented, yet critical to uncovering and understanding some of the earliest biological responses to rapid environmental change. Clear imprints of climate on the behavior and life history of some Arctic arthropods have been demonstrated, but a synthesis of population-level abundance changes across taxa is lacking. We utilized 24 y of abundance data from Zackenberg in High-Arctic Greenland to assess trends in abundance and diversity and identify potential climatic drivers of abundance changes. Unlike findings from temperate systems, we found a nonlinear pattern, with total arthropod abundance gradually declining during 1996 to 2014, followed by a sharp increase. Family-level diversity showed the opposite pattern, suggesting increasing dominance of a small number of taxa. Total abundance masked more complicated trajectories of family-level abundance, which also frequently varied among habitats. Contrary to expectation in this extreme polar environment, winter and fall conditions and positive density-dependent feedbacks were more common determinants of arthropod dynamics than summer temperature. Together, these data highlight the complexity of characterizing climate change responses even in relatively simple Arctic food webs. Our results underscore the need for data reporting beyond overall trends in biomass or abundance and for including basic research on life history and ecology to achieve a more nuanced understanding of the sensitivity of Arctic and other arthropods to global changes. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Insects; Long-term monitoring; Spiders; Temporal trend
语种	英语
scopus关键词	Arctic; article; basic research; biomass; climate change; ecology; expectation; food web; global change; Greenland; habitat; human; insect; life history; nonhuman; spider; summer; synthesis; winter
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/181102
作者单位	Arctic Research Centre, Aarhus University, Rønde, DK-8410, Denmark; Department of Bioscience, Aarhus University, Rønde, DK-8410, Denmark; Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; Department of Biology, Washington University in St. Louis, St. Louis, MO 63130, United States; Arctic Institute, Washington, DC 20009, United States; Department of Environmental Sciences, Western Norway University of Applied Sciences, Sogndal, 6851, Norway; Atlantic Forestry Centre, Canadian Forest Service, Natural Resources Canada, Corner Brook, NL A2H 5G4, Canada; Arctic Research Centre, Aarhus University, Roskilde, DK-4000, Denmark; Department of Bioscience, Aarhus University, Roskilde, DK-4000, Denmark
推荐引用方式 GB/T 7714	Høye T.T.,Loboda S.,Koltz A.M.,et al. Nonlinear trends in abundance and diversity and complex responses to climate change in Arctic arthropods[J],2021,118(2).
APA	Høye T.T.,Loboda S.,Koltz A.M.,Gillespie M.A.K.,Bowden J.J.,&Schmidt N.M..(2021).Nonlinear trends in abundance and diversity and complex responses to climate change in Arctic arthropods.Proceedings of the National Academy of Sciences of the United States of America,118(2).
MLA	Høye T.T.,et al."Nonlinear trends in abundance and diversity and complex responses to climate change in Arctic arthropods".Proceedings of the National Academy of Sciences of the United States of America 118.2(2021).