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Which species will successfully track climate change? The influence of intraspecific competition and density dependent dispersal on range shifting dynamics

Best, A.S.; Johst, K.; Muenkemueller, T.; Travis, J.M.J.. 2007 Which species will successfully track climate change? The influence of intraspecific competition and density dependent dispersal on range shifting dynamics. Oikos, 116. 1531-1539. 10.1111/j.0030-1299.2007.16047.x

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Abstract/Summary

Understanding the ability of species to shift their geographic range is of considerable importance given the current period of rapid climate change. Furthermore, a greater understanding of the spatial population dynamics underlying range shifting is required to complement the advances made in climate niche modelling. A simulation model is developed which incorporates three key features that have been largely overlooked in studies of range shifting dynamics: the form of intraspecific competition, density dependent dispersal and the transient dynamics of habitat patches. The results show that the exact shape of the response depends critically on both local and patch dynamics. Species whose intraspecific competition is contest based are more vulnerable than those whose competition is scramble based. Contesters are especially sensitive when combined with density dependent dispersal. Species living in patches whose carrying capacity grows slowly are also susceptible to rapid shifts of environmental conditions. A complementary analytic approach further highlights the importance of intraspecific competition.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1111/j.0030-1299.2007.16047.x
Programmes: CEH Programmes pre-2009 publications > Biodiversity
CEH Sections: _ Ecosystem Dynamics
ISSN: 0030-1299
NORA Subject Terms: Ecology and Environment
Date made live: 15 Jan 2008 10:14
URI: http://nora.nerc.ac.uk/id/eprint/1392

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