Does testis size in cuckoos vary with paternal care?
Male birds confront a tradeoff between increasing the number of offspring they sire and providing parental care. This behavioral tradeoff may be manifested as variation in testis size: larger testes, producing more sperm and testosterone, are advantageous for sperm and mating competition, thus ensuring paternity, yet high levels of plasma testosterone also inhibit parental care. There is good evidence that relative testis size is greater in species in which males compete more intensely to...[Show more]
|Collections||ANU Research Publications|
|01_Maurer_Does_testis_size_in_cuckoos_2009.pdf||191.97 kB||Adobe PDF||Request a copy|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.