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Animal Dispersal in Fragmented Habitat: Measuring Habitat Connectivity, Corridor Use, and Dispersal Mortality

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dc.contributor.author Brooker, Lesley en_US
dc.contributor.author Brooker, Michael en_US
dc.contributor.author Cole, Peter en_US
dc.date.accessioned 2009-07-31T14:54:01Z
dc.date.available 2009-07-31T14:54:01Z
dc.date.issued 1999 en_US
dc.date.submitted 2008-09-02 en_US
dc.date.submitted 2008-09-02 en_US
dc.identifier.uri https://hdl.handle.net/10535/2810
dc.description.abstract "We used a spatially explicit dispersal simulation to generate movement frequencies and distances for comparison with real dispersal frequencies collected in the field from two habitat-specific, sedentary bird species. The relationship between these two data sets allowed us to (1) test the hypothesis that the study species used corridor routes during dispersal; (2) measure the degree of reliance on corridor continuity; (3) estimate the rate of dispersal mortality with respect to distance traveled, and (4) give examples of how the model can be used to assess habitat connectivity with respect to similarly behaved species. We found that Blue-breasted Fairy-wrens and White-browed Babblers both used corridor routes during dispersal. Blue-breasted Fairy-wrens were inhibited by gaps greater than about 60 m, whereas White-browed Babblers crossed gaps of at least 270 m wide. For each species, the rate of dispersal mortality per unit distance traveled was about the same. Because we have effectively partitioned the risk of dispersal mortality from the chance of outside dispersal, and because our mortality estimates are model dependent but landscape independent, they can be transported to other landscapes on which simulations have been run and, therefore, can be used in population viability assessment of unstudied or hypothetical animal populations." en_US
dc.subject animal behavior en_US
dc.subject wildlife en_US
dc.subject birds en_US
dc.title Animal Dispersal in Fragmented Habitat: Measuring Habitat Connectivity, Corridor Use, and Dispersal Mortality en_US
dc.type Journal Article en_US
dc.type.published published en_US
dc.subject.sector Wildlife en_US
dc.identifier.citationjournal Ecology and Society en_US
dc.identifier.citationvolume 3 en_US
dc.identifier.citationnumber 1 en_US
dc.identifier.citationmonth June en_US

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