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Effects of breeding site density on competition and sexual selection in the European lobster

Debuse, Valerie J.; Addison, Julian T.; Reynolds, John D. - In: Behavioral Ecology 14 (2003) 3, pp. 396-402

The availability of breeding sites has been predicted to affect the intensity of sexual selection, including mate competition, mate choice and ultimately, variation in mating success. We tested the hypothesis that reduced density of shelters would cause an increase in the intensity of sexual...

Persistent link: https://www.econbiz.de/10008581368

Why do sperm-depleted parasitoid males continue to mate?

Damiens, David; Boivin, Guy - In: Behavioral Ecology 17 (2006) 1, pp. 138-143

Insect males of several parasitoid species have limited amount of sperm at emergence and experience sperm depletion when mate acquisition rate is high, suggesting that sperm production and storage could be a limiting factor for male's fitness. Sperm-depleted males of the parasitoid wasp...

Persistent link: https://www.econbiz.de/10008581454

Reproductive asynchrony and population divergence between two tropical bird populations

Moore, Ignacio T.; Bonier, Frances; Wingfield, John C. - In: Behavioral Ecology 16 (2005) 4, pp. 755-762

seasonal processes is photoperiod. Investigations of tropical vertebrates have also documented seasonal reproduction, but it is … unclear how synchronous reproduction is, both within and between populations. In this study, we investigated whether seasonal … reproduction in a tropical species is synchronous between two populations in close proximity and, if not, whether asynchrony is …

Persistent link: https://www.econbiz.de/10008581482

Sexual swelling in mandrills (Mandrillus sphinx): a test of the reliable indicator hypothesis

Setchell, Joanna M.; Wickings, E. Jean - In: Behavioral Ecology 15 (2004) 3, pp. 438-445

Various hypotheses have been proposed to account for the function of sexual swellings in female primates, but few empirical data exist to test predictions arising from these hypotheses. Controversy has recently arisen over a field study that appeared to support the predictions of the reliable...

Persistent link: https://www.econbiz.de/10008581771