Journal article
Rapid shifts in dispersal behavior on an expanding range edge
Tom Lindstroem, Gregory P Brown, Scott A Sisson, Benjamin L Phillips, Richard Shine
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | NATL ACAD SCIENCES | Published : 2013
Abstract
Dispersal biology at an invasion front differs from that of populations within the range core, because novel evolutionary and ecological processes come into play in the nonequilibrium conditions at expanding range edges. In a world where species' range limits are changing rapidly, we need to understand how individuals disperse at an invasion front. We analyzed an extensive dataset from radio-tracking invasive cane toads (Rhinella marina) over the first 8 y since they arrived at a site in tropical Australia. Movement patterns of toads in the invasion vanguard differed from those of individuals in the same area postcolonization. Our model discriminated encamped versus dispersive phases within ..
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Funding Acknowledgements
We thank the staff of Beatrice Hill Farm for access to their property and the Northern Territory Land Corporation for access to facilities. T.L. was funded by the Swedish Research Council. R.S., B.L.P., G.P.B., and S.A.S. were funded by the Australian Research Council.