Male dolphins swim in family bachelor groups

phys.org | 3/5/2019 | Staff
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When it comes to wooing the 'ladies," it turns out male bottlenose dolphins seem to employ similar tactics to some human groups.

Flinders field work on the dolphins of southern Australia found they form strong bonds with other male relatives in their social circle to improve their success rate when breeding with a small number of available females.

New - Research - Behaviour - Groups - South

New research has analysed the behaviour of 12 dolphin social groups in South Australia's Coffin Bay region and shows males which team up in groups of two to five to form beneficial alliances may have more sexual success.

The collaboration improves the bottlenose dolphins' chances of finding and breeding with females in a competitive environment, ensures they stay fit, and leads to stronger family bonds over time.

Dr - Fernando - Diaz-Aguirre - Molecular - Ecology

Led by Dr. Fernando Diaz-Aguirre at the Molecular Ecology Lab and Cetacean Ecology, Behaviour and Evolution Lab at Flinders University, the study examined the social and genetic structure of Southern Australian dolphins dealing with population density, an unfavourable sex ratio, and their own behavioural characteristics.

"Our research shows males form tight groups likely to increase their chances at mating with limited numbers of females, and at the same time they can defend females and prevent other male groups from mating with them," says Dr. Diaz-Aguirre.

Study - Highlights - Factors - Male - Success

"The study highlights which geographic and demographic factors directly influence how male dolphins go about increasing their success rate with females."

Male...
(Excerpt) Read more at: phys.org
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