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Received 5 July 2001 Accepted 5 September 2001
 

Summary: Received 5 July 2001
Accepted 5 September 2001
Published online 20 December 2001
Sexual selection and alternative mating behaviours
generate demographic stochasticity in small
populations
Ryan Calsbeek1*
, Suzanne H. Alonzo2
, Kelly Zamudio3
and Barry Sinervo1
1
Department of Biology, Earth and Marine Sciences Building, A316, and 2
Department of Environmental Studies,
460 Natural Sciences II, University of California, Santa Cruz, CA 95064, USA
3
Department of Ecology and Evolutionary Biology, Corson Hall, Cornell University, Ithaca, NY 14853-2701, USA
Recent theory predicts that environmental variation and small population size facilitate the coexistence
of alternative phenotypes despite unequal mean tness. However, traditional studies of reproductive stra-
tegies often assume that the stability of alternative mating behaviours relies on equal male tness. We
present results from eld observations and experimental manipulations of thermal resources on territories

  

Source: Alonzo, Suzanne H. - Department of Ecology and Evolutionary Biology, Yale University
Zamudio, Kelly R. - Department of Ecology and Evolutionary Biology, Cornell University

 

Collections: Biology and Medicine; Environmental Sciences and Ecology