Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
The evolution of infertility: does hatching rate in birds coevolve with female polyandry?
 

Summary: The evolution of infertility: does hatching rate in birds
coevolve with female polyandry?
E. H. MORROW,* G. ARNQVIST* & T. E. PITCHER
*Department of Animal Ecology, Evolutionary Biology Centre, Uppsala University, Norbyva¨gen, Uppsala, Sweden
Department of Zoology, University of Toronto, Toronto, Ontario, Canada
Keywords:
extrapair paternity;
genetic incompatibility;
hatching success;
infertility;
polyspermy;
sexual conflict.
Abstract
Natural levels of infertility in many taxa are often remarkably high, amounting
to a considerable fitness cost which one expects to be minimized by natural
selection. Several mechanisms have been proposed as potential causes of
infertility, including inbreeding depression, genetic incompatibilities and
selfish genetic elements. Infertility may also be an inherent result of conflict
over fertilization between the sexes in polyandrous species, either because too
many sperm enter the egg or because of over-efficient barriers to such

  

Source: Arnqvist, Göran - Department of Animal Ecology, Uppsala Universitet

 

Collections: Environmental Sciences and Ecology