Show simple item record Javier en_US 2008-12-09T10:25:01Z 2008-12-09T10:25:01Z 2005-09-07 en_US
dc.identifier en_US
dc.identifier.citation Garcia-Perez Gamarra , J 2005 , ' Metapopulations in multifractal landscapes: on the role of spatial aggregation ' Proceedings of the Royal Society B: Biological Sciences , vol 272 , no. 1572 , pp. 1815-1822 . , 10.1098/rspb.2005.3135 en_US
dc.identifier.other PURE: 90930 en_US
dc.identifier.other dspace: 2160/1471 en_US
dc.description.abstract The use of fractals in ecology is currently pervasive over many areas. However, very few studies have linked fractal properties of landscapes to generating ecological mechanisms and dynamics. In this study I show that lacunarity (a measure of the landscape texture) is a well suited ecologically scaled landscape index that can be explicitly incorporated in metapopulation models such as the classical Levins equation. I show that the average lacunarity of an aggregated landscape is linearly correlated to the habitat that a species with local spatial processed information may perceive. Lacunarity is a computationally feasible index to measure, and is related to the metapopulation capacity of landscapes. A general approach to multifractal landscapes has been conceived, and some analytical results for self-similar landscapes are outlined, including the specific effect of landscape heterogeneity, decoupled from that of contagion by dispersal. Spatially explicit simulations show agreement with the semi-implicit method presented. en_US
dc.format.extent 8 en_US
dc.relation.ispartof Proceedings of the Royal Society B: Biological Sciences en_US
dc.subject equilibrium population en_US
dc.subject extinction threshold en_US
dc.subject lacunarity en_US
dc.subject landscape connectivity en_US
dc.subject Levins model en_US
dc.subject neutral landscapes en_US
dc.title Metapopulations in multifractal landscapes: on the role of spatial aggregation en_US
dc.contributor.pbl Aberystwyth University en_US
dc.contributor.pbl Institute of Biological, Environmental and Rural Sciences en_US

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