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Dispersal rates and distances in adult water frogs, Rana lessonae, R. ridibunda and their hybridogenetic associate R. esculenta


Holenweg Peter, A K (2001). Dispersal rates and distances in adult water frogs, Rana lessonae, R. ridibunda and their hybridogenetic associate R. esculenta. Herpetologica, 57(4):449-460.

Abstract

Abstract: I investigated dispersal of adult water frogs between local ponds containing Rana lessonae, R. ridibunda and their hybridogenetic associate R. esculenta. Recent models indicate a strong influence of species specific dispersal on the dynamics of such mixed populations. However, empirical data on dispersal are still rare and populations are often defined through individuals which reproduce at the same site. In my study area near Zurich, Switzerland, 12.2% of the animals changed ponds in 1995 and 1996. Dispersal occurred throughout the whole year and was not restricted to specific periods. The dispersal rate decreased with increasing pond-to-pond distance and degree of isolation. In addition, I found differences in dispersal rate and distance related

Abstract: I investigated dispersal of adult water frogs between local ponds containing Rana lessonae, R. ridibunda and their hybridogenetic associate R. esculenta. Recent models indicate a strong influence of species specific dispersal on the dynamics of such mixed populations. However, empirical data on dispersal are still rare and populations are often defined through individuals which reproduce at the same site. In my study area near Zurich, Switzerland, 12.2% of the animals changed ponds in 1995 and 1996. Dispersal occurred throughout the whole year and was not restricted to specific periods. The dispersal rate decreased with increasing pond-to-pond distance and degree of isolation. In addition, I found differences in dispersal rate and distance related

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Zoology (former)
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Language:English
Date:2001
Deposited On:11 Feb 2008 12:16
Last Modified:05 Apr 2016 12:14
Publisher:Herpetologists League
ISSN:0018-0831
Official URL:http://www.jstor.org/stable/3893052
Permanent URL: http://doi.org/10.5167/uzh-546

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