%0 Journal Article %T Sexual, seasonal, and environmental variation in plasma carotenoids in great tits, Parus major %A ISAKSSON, CAROLINE %A VON POST, MARIA %A ANDERSSON, STAFFAN %J Biological Journal of the Linnean Society %V 92 %N 3 %P 521-527 %@ 0024-4066 %D 2007-11-01 %I The Linnean Society of London %~ DeepDyve