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J. Ornithol. 140, 431-441 (1999) Deutsche Ornithologen-Gesellschafl/Blackwell Wissenschafts-Verlag, Berlin
 

Summary: J. Ornithol. 140, 431-441 (1999)
© Deutsche Ornithologen-Gesellschafl/Blackwell Wissenschafts-Verlag, Berlin
ISSN 0021-8375
Sexuelle Selektion und die Evolution von Kopulationen augerhalb des
Paarbundes: Spielregeln der Weibchen
Valentin Amrhein
Universit~t Basel, Institut ftir Medizinische Biologie, Sch/SnbeinstraBe40,
CH-4003 Basel, Schweiz. E-mail: amrheinv@ubaclu.unibas.ch
Summary
Sexual selection and the evolution of extra-pair copulation:
rules of the game from the females' point of view
In view of Darwin's fundamental thesis on sexual selection, which appeared in 1871, it is
no longer a secret that a peacock can spread his tail because the females want it that way. It
is generally acknowledged that the peacock is polygamous; whichever male has the most
attractive plumage wins the most females and therefore achieves the greatest reproductive
success. It is due to selective breeding by the females, i. e. "female choice" that the males
have become what they are today. In monogamous mating systems, however, the source of
striking colouring in males could not be explained the same way until evidence for the
common occurrence of "extra-pair copulation" became more accepted. This mating be-
haviour offers an explanation of how certain males, even in monogamous species, can pro-

  

Source: Amrhein, Valentin - Zoologisches Institut, Universitšt Basel

 

Collections: Environmental Sciences and Ecology