Publications

reduced dispersal propensity in the wingless waterstrider aquarius najas in a highly fragmented landscape.	dispersal behaviour of animals in fragmented habitats has generated intensive theoretical attention but empirical data on the evolution of dispersal are still relatively scarce. theory predicts reduced dispersal propensity in small and isolated habitat patches. we tested these predictions in the waterstrider aquarius najas, a wingless species with special habitat demands. flightlessness constrains insect dispersal and as a stream specialist a. najas cannot survive on still water. lakes therefore ...	2010	19763627
founder population size and number of source populations enhance colonization success in waterstriders.	understanding the factors that underlie colonization success is crucial both for ecological theory and conservation practices. the most effective way to assess colonization ability is to introduce experimentally different sets of individuals in empty patches of suitable habitat and to monitor the outcome. we translocated mated female waterstriders, aquarius najas, into 90 streams that were not currently inhabited by the species. we manipulated sizes of propagules (from 2 to 16 mated females) and ...	2003	14534781