Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1034/j.1600-0706.2002.980208.x
Titel (primär) Metapopulation persistence in dynamic landscapes: the role of dispersal distance
Autor Johst, K.; Brandl, R.; Eber, S.
Quelle Oikos
Erscheinungsjahr 2002
Department OESA
Band/Volume 98
Heft 2
Seite von 263
Seite bis 270
Sprache englisch

Species associated with transient habitats need efficient dispersal strategies to ensure their regional survival. Using a spatially explicit metapopulation model, we studied the effect of the dispersal range on the persistence of a metapopulation as a function of the local population and landscape dynamics (including habitat patch destruction and subsequent regeneration). Our results show that the impact of the dispersal range depends on both the local population and patch growth. This is due to interactions between dispersal and the dynamics of patches and populations via the number of potential dispersers. In general, long-range dispersal had a positive effect on persistence in a dynamic landscape compared to short-range dispersal. Long-range dispersal increases the number of couplings between the patches and thus the colonisation of regenerated patches. However, long-range dispersal lost its advantage for long-term persistence when the number of potential dispersers was low due to small population growth rates and/or small patch growth rates. Its advantage also disappeared with complex local population dynamics and in a landscape with clumped patch distribution.

dauerhafte UFZ-Verlinkung
Johst, K., Brandl, R., Eber, S. (2002):
Metapopulation persistence in dynamic landscapes: the role of dispersal distance
Oikos 98 (2), 263 - 270 10.1034/j.1600-0706.2002.980208.x