Byrne, Phillip G. - In: Behavioral Ecology 15 (2004) 5, pp. 857-863
present (sperm-competition risk), and (2) determine if males adjust their ejaculate expenditure according to the number of … males involved in a spawning (sperm-competition intensity). Theory predicts that because sneak males always mate with other … males present, they will experience a higher sperm-competition risk and should release larger ejaculates relative to that of …