globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13321
论文题名:
Equatorial range limits of an intertidal ectotherm are more linked to water than air temperature
作者: Seabra R.; Wethey D.S.; Santos A.M.; Gomes F.; Lima F.P.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期:10
起始页码: 3320
结束页码: 3331
语种: 英语
英文关键词: distribution gap ; distribution limit ; European Atlantic intertidal ; heartbeat frequency ; Patella vulgata ; physiology ; temperature ; thermal stress
Scopus关键词: air temperature ; climate effect ; ectothermy ; intertidal community ; snail ; water temperature ; Atlantic Coast [Europe] ; Atlantic Ocean ; Bay of Biscay ; Patella vulgata
英文摘要: As climate change is expected to impose increasing thermal stress on intertidal organisms, understanding the mechanisms by which body temperatures translate into major biogeographic patterns is of paramount importance. We exposed individuals of the limpet Patella vulgata Linnaeus, 1758, to realistic experimental treatments aimed at disentangling the contribution of water and air temperature for the buildup of thermal stress. Treatments were designed based on temperature data collected at the microhabitat level, from 15 shores along the Atlantic European coast spanning nearly 20° of latitude. Cardiac activity data indicated that thermal stress levels in P. vulgata are directly linked to elevated water temperature, while high air temperature is only stressful if water temperature is also high. In addition, the analysis of the link between population densities and thermal regimes at the studied locations suggests that the occurrence of elevated water temperature may represent a threshold P. vulgata is unable to tolerate. By combining projected temperatures with the temperature threshold identified, we show that climate change will likely result in the westward expansion of the historical distribution gap in the Bay of Biscay (southwest France), and northward contraction of the southern range limit in south Portugal. These findings suggest that even a minor relaxing of the upwelling off northwest Iberia could lead to a dramatic increase in thermal stress, with major consequences for the structure and functioning of the intertidal communities along Iberian rocky shores. © 2016 John Wiley & Sons Ltd
资助项目: This work was funded by FEDER (FCOMP-01-0124-FEDER-010564, FCOMP-01-0124-FEDER-020817), FCT (PTDC/MAR/099391/2008, PTDC/MAR/117568/2010, SFRH/BD/68521/2010 and IF/00043/2012), NASA (NNX11AP77G) and NSF (OCE1129401). Past and future model SST data were obtained from the ENSEMBLES project and funded by the European Commission's 6th Framework Programme through contract GOCE-CT-2003-505539. The comments and help of Nuno Queiroz and Ana Catarina Queiroga contributed significantly to the quality of this study. This is contribution 85 in Ecological Forecasting from the University of South Carolina. The authors declare no conflict of interest.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61296
Appears in Collections:影响、适应和脆弱性

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作者单位: CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal; Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, R. Campo Alegre, s/n, Porto, Portugal; Department of Biological Sciences, University of South Carolina, Columbia, SC, United States

Recommended Citation:
Seabra R.,Wethey D.S.,Santos A.M.,et al. Equatorial range limits of an intertidal ectotherm are more linked to water than air temperature[J]. Global Change Biology,2016-01-01,22(10)
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