Extrapair paternity as a cost of polygyny in the rock sparrow: behavioural and genetic evidence of the ‘trade-off’ hypothesis

Author: Pilastro A.   Griggio M.   Biddau L.   Mingozzi T.  

Publisher: Elsevier

ISSN: 0003-3472

Source: Animal Behaviour, Vol.63, Iss.5, 2002-05, pp. : 967-974

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Abstract