Detectability, philopatry, and the distribution of dispersal distances in vertebrates.
Dispersal is of central importance to population biology, behavioral ecology and conservation. However, because field studies are based on finite study areas, nearly all dispersal distributions for vertebrates currently available are biased, often highly so. The inadequacy of dispersal data obtained directly by traditional methods using population studies of marked individuals is highlighted by comparing the resulting distributions with dispersal estimates obtained by radio-tracking and by using genetic estimates of gene flow.
Walter Koenig is at the Hastings Reservation, University of California, 38601 E. Carmel Valley Road, Carmel Valley, CA 93924, USA.
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