Open AccessEDGE PERMEABILITY AND POPULATION PERSISTENCE IN ISOLATED HABITAT PATCHES
Author(s) -
KIRK R.W. VAN,
LEWIS M.A.
Publication year - 1999
Publication title -
natural resource modeling
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.28
H-Index - 32
eISSN - 1939-7445
pISSN - 0890-8575
DOI - 10.1111/j.1939-7445.1999.tb00003.x
Subject(s) - biological dispersal , persistence (discontinuity) , population , habitat , enhanced data rates for gsm evolution , permeability (electromagnetism) , ecology , biology , computer science , geology , demography , geotechnical engineering , artificial intelligence , genetics , membrane , sociology
. Population persistence in isolated habitat fragments is investigated using integrodifference equations. The propensity of individual dispersers encountering the boundary of the patch to emigrate is defined by edge permeability. A dispersal model incorporating movement, settlement and edge permeability defines dispersal success as a function of a disperser's starting location. This dispersal model is used to generate dispersal kernels for integrodifference equation models, analysis of which gives a condition for population persistence in terms of edge permeability, patch size and average dispersal distance. An approximation reduces the spatial problem to a simple nonspatial model that can be easily analyzed.