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Ecological hindcasting of biogeographic responses to climate change in the European intertidal zone
Wethey, D.S.; Woodin, S.A. (2008). Ecological hindcasting of biogeographic responses to climate change in the European intertidal zone, in: Davenport, J. et al. (Ed.) Challenges to Marine Ecosystems: Proceedings of the 41st European Marine Biology Symposium, held in Cork, Ireland, 4-8 September 2005. Developments in Hydrobiology, 202: pp. 139-151
In: Davenport, J. et al. (Ed.) (2008). Challenges to Marine Ecosystems: Proceedings of the 41st European Marine Biology Symposium, held in Cork, Ireland, 4-8 September 2005. Developments in Hydrobiology, 202. European Marine Biology Symposia, 41. ISBN 978-1-4020-8807-0. 211 pp., more
In: Dumont, H.J. (Ed.) Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht. ISSN 0167-8418, more

Also published as
  • Wethey, D.S.; Woodin, S.A. (2008). Ecological hindcasting of biogeographic responses to climate change in the European intertidal zone. Hydrobiologia 597(1): 139-151. dx.doi.org/10.1007/s10750-008-9338-8, more

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Document type: Conference paper

Keywords
    Barnacles; Barnacles; Behavioural responses; Biogeography; Body temperature; Climatic changes; Computer simulation; Computer simulation; Computer simulation; Crustaceans; Ecology; Environmental factors; Geographical distribution; Hindcasting; Hypothesis testing; Intertidal environment; Rocky shores; Animalia [WoRMS]; Diopatra neapolitana Delle Chiaje, 1841 [WoRMS]; Polychaeta [WoRMS]; Semibalanus Pilsbry, 1916 [WoRMS]; Thoracica [WoRMS]; Marine

Authors  Top 
  • Wethey, D.S.
  • Woodin, S.A.

Abstract
    Intertidal organisms are often assumed to live close to their thermal limits, and have emerged as potential early indicators of the effects of climate change. We compared our survey of the 2004-2006 geographic distribution of the barnacle Semibalanus balanoides to its distribution in 1872, 1955, 1963, 1971, and 1985, from surveys by Fischer, Crisp, Fischer-Piette, Barnes, Powell, and Southward. The southern geographic limit has retreated 300 km in France since 1872, at a rate of 15 to 50 km per decade. We compared our 2006 survey of the geographic distribution of the polychaete Diopatra neapolitana to its distribution in 1893-1923, from surveys by Saint-Joseph and Fauvel, and its distribution in 1969-1976 from surveys by Glémarec. The northern geographic limit of this species has advanced 300 km in France since 1893 at similar rates to Semibalanus. We used NOAA weather reanalysis data and our mechanistic simulation model of intertidal animal body temperatures to hindcast the thermal environmental change near historical geographic limits in Europe for the past 55 years. Results indicate that changes in the southern limit of S. balanoides are due to intolerance of winter body temperatures above 10°C, leading to reproductive failure. Results for Diopatra are ambiguous: based on the northern extension of its range, either cold winters or cool summers limit its range, while gaps in its distribution are consistent with limitation by cooler summer conditions. The parallel shifts of D. neapolitana on sedimentary shores and Semibalanus on rocky shores suggest that similar climatic factors control the geographic limits of both species. The intertidal zone is a model system for examining the effects of climate change on biogeographic change both because of the rapidity of its response, and because the rich historical record allows direct tests of hypotheses.

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