Extinction dynamics and the regional persistence of a tree frog metapopulation
نویسندگان
چکیده
منابع مشابه
Metapopulation dynamics on the brink of extinction.
We analyse metapopulation dynamics in terms of an individual-based, stochastic model of a finite metapopulation. We suggest a new approach, using the number of patches in the population as a large parameter. This approach does not require that the number of individuals per patch is large, neither is it necessary to assume a time-scale separation between local population dynamics and migration. ...
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15 صفحه اولExtinction Thresholds and Metapopulation Persistence in Dynamic Landscapes.
Models of metapopulations have focused on the effects of extinction and colonization rate upon metapopulation persistence and dynamics, assuming static landscapes wherein patches are neither created nor go extinct. However, for species living in ephemeral (patchy) habitats, landscapes are highly dynamic rather than static. In this article, we develop a lattice metapopulation model, of the patch...
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The distribution and extinction patterns within a northern metapopulation of the pool frog (Rana lessonae) were analyzed with reference to metapopulation theory. Occupied ponds were permanent and differed from unoccupied ones in terms of higher water temperature during May-June and a closer proximity to neighboring pool-frog localities. but local climate was not spatially autocorrelated. Two ty...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 2000
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2000.1143