Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.ecolmodel.2006.04.003
Titel (primär) Clumped dispersal and species coexistence
Autor Potthoff, M.; Johst, K.; Gutt, J.; Wissel, C.
Quelle Ecological Modelling
Erscheinungsjahr 2006
Department OESA
Band/Volume 198
Heft 1-2
Seite von 247
Seite bis 254
Sprache englisch
Abstract Anisotropic clumped (patchy) dispersal of species is a widespread phenomenon in nature, however, its relevance for structuring communities and maintaining biodiversity is still a matter of debate. We used a spatially explicit simulation model to assess the effects of spatial aggregation through this dispersal strategy compared to isotropic clumped (local) dispersal on the diversity of a model community of sessile species. The species differed only in terms of their dispersal distance and no a priori trade-offs between dispersal and local competitive strength were assumed. We investigated spatially homogeneous and heterogeneous environments without and with temporally fluctuating reproduction success. In all cases patchy dispersal allowed the long-term coexistence of a variety of species—in contrast to local dispersal. In particular, patchy dispersal was found to decouple the mechanism of spatial aggregation from the dispersal distance. This supports species coexistence even in environments where local dispersal was a superior or inferior dispersal strategy. Thus, the specific way of spatial aggregation can be decisive for coexistence. Spatial aggregation independent of the dispersal distance is an attribute of dispersal offering new possibilities for trade-offs with life-history traits and with the dispersal distance itself.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=2921
Potthoff, M., Johst, K., Gutt, J., Wissel, C. (2006):
Clumped dispersal and species coexistence
Ecol. Model. 198 (1-2), 247 - 254 10.1016/j.ecolmodel.2006.04.003