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Dynamics of range margins for metapopulations under climate change

Citation

Anderson, BJ and Akcakaya, HR and Araujo, MB and Fordham, DA and Martinez-Meyer, E and Thuiller, W and Brook, BW, Dynamics of range margins for metapopulations under climate change, Proceedings of the Royal Society B: Biological Sciences, 276, (1661) pp. 1415-1420. ISSN 0962-8452 (2009) [Refereed Article]

Copyright Statement

Copyright 2009 The Royal Society

DOI: doi:10.1098/rspb.2008.1681

Abstract

We link spatially explicit climate change predictions to a dynamic metapopulation model. Predictions of species' responses to climate change, incorporating metapopulation dynamics and elements of dispersal, allow us to explore the range margin dynamics for two lagomorphs of conservation concern. Although the lagomorphs have very different distribution patterns, shifts at the edge of the range were more pronounced than shifts in the overall metapopulation. For Romerolagus diazi (volcano rabbit), the lower elevation range limit shifted upslope by approximately 700 m. This reduced the area occupied by the metapopulation, as the mountain peak currently lacks suitable vegetation. For Lepus timidus (European mountain hare), we modelled the British metapopulation. Increasing the dispersive estimate caused the metapopulation to shift faster on the northern range margin (leading edge). By contrast, it caused the metapopulation to respond to climate change slower, rather than faster, on the southern range margin (trailing edge). The differential responses of the leading and trailing range margins and the relative sensitivity of range limits to climate change compared with that of the metapopulation centroid have important implications for where conservation monitoring should be targeted. Our study demonstrates the importance and possibility of moving from simple bioclimatic envelope models to second-generation models that incorporate both dynamic climate change and metapopulation dynamics.

Item Details

Item Type:Refereed Article
Keywords:range limits, global warming, extinction risk, population dynamics, elevation, latitude
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Population Ecology
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Ecosystem Adaptation to Climate Change
Author:Brook, BW (Professor Barry Brook)
ID Code:116071
Year Published:2009
Web of Science® Times Cited:186
Deposited By:Biological Sciences
Deposited On:2017-05-01
Last Modified:2017-08-28
Downloads:0

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