Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4377877 | Ecological Modelling | 2008 | 7 Pages |
Abstract
The Allee effect (the positive relationship between population growth rate and population size) is a constraint of some animal populations at low numbers, which increases their likelihood of extinction because of a decrease in reproduction and/or survival. We were able to demonstrate that the Allee effect can be the result of a mortality increase affecting floaters (i.e. dispersing individuals able to enter as breeders in the reproductive population when a breeding territory or a potential mate - owner of a suitable breeding territory - becomes available). Previously, potential mechanisms underlying Allee effects were always related to the breeding portion of a population only. In contrast, our understanding of or solutions to population declines due to the Allee effects can reside elsewhere, away from breeding territories.
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Authors
Vincenzo Penteriani, FermÃn Otalora, Miguel Ferrer,