State-dependent male mating tactics in the grey seal: the importance of body size
نویسندگان
چکیده
Damian C. Lidgard, Daryl J. Boness, W. Don Bowen, and Jim I. McMillan Conservation and Research Center, National Zoological Park, Smithsonian Institution, 3001 Connecticut Avenue NW, Washington, DC 20008-2598, USA, Laboratoire de Biologie et Environnement Marins, Université de La Rochelle, La Rochelle 17000, France, Marine Fish Division, Bedford Institute of Oceanography, Department of Fisheries and Oceans, Dartmouth, Nova Scotia B2Y 4A2, Canada
منابع مشابه
A novel mobile approach to investigating mating tactics in male grey seals (Halichoerus grypus)
Studies of the grey seal Halichoerus grypus mating system, using focal animal sampling constrained by study site location and size, limit the measurement of variation in male mating tactics and success. Using this method, the mating tactics of grey seal males have been classi®ed as either `tenured' or `transient'. Preliminary evidence is presented of wider variation in male mating tactics and s...
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We observed the reproductive behavior of the oval squid Sepioteuthis lessoniana in captivity. The male used three different mating behaviors: male-parallel (MP), male-upturned (MU) and sneaking. Male competition over females frequently occurred before and during the female egg-laying period, and the outcome of most fights depended on male body size. Larger males guarded their partners from othe...
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