You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Mating behaviour influences extinction risk: insights from demographic modelling and comparative analysis of avian extinction risk
Carmen Bessa-Gomes, Marine Danek-Gontard, Phillip Cassey, Anders P. Møller, Stéphane Legendre and Jean Clobert
Annales Zoologici Fennici
Vol. 40, No. 2, EXTINCTION THRESHOLDS (2003), pp. 231-245
Published by: Finnish Zoological and Botanical Publishing Board
Stable URL: http://www.jstor.org/stable/23736528
Page Count: 15
You can always find the topics here!Topics: Mating behavior, Female animals, Species extinction, Mating systems, Population size, Species, Extinct species, Birds, Modeling, Population estimates
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Mating behaviour has long been proposed as a potential cause of inverse density dependence that can affect the viability of small populations through the reduction of female mating rates. However, under the general designation of mating behaviour we may find a diversity of traits that are likely to influence the mating rate. In the present study, we have analysed the influence of the social mating system, mate choice and mating opportunities on population dynamics given a demographic model that explicitly takes mating behaviour into account. The effect of mate choice on extinction risk depends on aspects such as the social mating system, the probability of accepting unattractive males, mating opportunities and variation in reproductive success. Thus, mate choice per se only leads to a significant increase in extinction risk if the social mating system is monogamous. If mating opportunities are limited, however (e.g. reduced encounter rate), the extinction probability associated with mate choice increases considerably. The risk of extinction associated with mate choice further increases when differences in reproductive success due to male attractiveness are taken into account. A comparative analysis of the establishment success of introduced bird species supports our predictions concerning mate choice. Sexually dichromatic species have a significantly lower establishment success than monochromatic species. However, the establishment success of non-native species was not significantly correlated with the social mating system, so that monogamous species are not less likely to be successful than polygamous species.
Annales Zoologici Fennici © 2003 Finnish Zoological and Botanical Publishing Board