Perturbation analysis for patch occupancy dynamics
نویسندگان
چکیده
منابع مشابه
Perturbation analysis for patch occupancy dynamics.
Perturbation analysis is a powerful tool to study population and community dynamics. This article describes expressions for sensitivity metrics reflecting changes in equilibrium occupancy resulting from small changes in the vital rates of patch occupancy dynamics (i.e., probabilities of local patch colonization and extinction). We illustrate our approach with a case study of occupancy dynamics ...
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Classical metapopulations are groups of local populations living in networks of spatially distinct habitat patches in a balance between local extinctions and recolonizations of empty habitat. Models are needed for understanding and predicting metapopulation dynamics in changing landscapes. One particularly important question is what is the effect of habitat loss to the persistence of a metapopu...
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1. The presence/absence of a species at a particular site is the simplest form of data that can be collected during ecological field studies. We used 13 years (1990-2002) of survey data to parameterize a stochastic patch occupancy model for a metapopulation of the yellow-bellied marmot in Colorado, and investigated the significance of particular patches and the influence of site quality, networ...
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ژورنال
عنوان ژورنال: Ecology
سال: 2009
ISSN: 0012-9658
DOI: 10.1890/08-0646.1