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Frère, C.H.; Krützen, M.; Mann, J.; Connor, R.C.; Bejder, L.; Sherwin, W.B. |
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Social and genetic interactions drive fitness variation in a free-living dolphin population |
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Journal Article |
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2010 |
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Proc Natl Acad Sci USA |
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Proc. Natl. Acad. Sci. U.S.A. |
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107 |
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46 |
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19949-19954 |
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The evolutionary forces that drive fitness variation in species are of considerable interest. Despite this, the relative importance and interactions of genetic and social factors involved in the evolution of fitness traits in wild mammalian populations are largely unknown. To date, a few studies have demonstrated that fitness might be influenced by either social factors or genes in natural populations, but none have explored how the combined effect of social and genetic parameters might interact to influence fitness. Drawing from a long-term study of wild bottlenose dolphins in the eastern gulf of Shark Bay, Western Australia, we present a unique approach to understanding these interactions. Our study shows that female calving success depends on both genetic inheritance and social bonds. Moreover, we demonstrate that interactions between social and genetic factors also influence female fitness. Therefore, our study represents a major methodological advance, and provides critical insights into the interplay of genetic and social parameters of fitness. |
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Equine Behaviour @ team @ |
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6412 |
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Amici, F.; Widdig, A.; Lehmann, J.; Majolo, B. |
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Title |
A meta-analysis of interindividual differences in innovation |
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Journal Article |
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2019 |
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Animal Behaviour |
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Anim. Behav. |
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155 |
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257-268 |
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age; bad competitor hypothesis; excess of energy hypothesis; innovation; interindividual differences; intraspecific variation; personality; rank; sex |
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The ability to innovate and the social transmission of innovations have played a central role in human evolution. However, innovation is also crucial for other animals, by allowing them to cope with novel socioecological challenges. Although innovation plays such a central role in animals' lives, we still do not know the conditions required for innovative behaviour to emerge. Here, we focused on interindividual differences in innovation by (1) extensively reviewing existing literature on innovative behaviour in animals and (2) quantitatively testing the different evolutionary hypotheses that have been proposed to explain interindividual variation in innovation propensity during foraging tasks. We ran a series of phylogenetically controlled mixed-effects meta-regression models to determine which hypotheses (if any) are supported by currently available empirical studies. Our analyses show that innovation is more common in individuals that are older and belong to the larger sex, but also in more neophilic and/or explorative individuals. Moreover, these effects change depending on the study setting (i.e. wild versus captive). Our results provide no clear support to the excess of energy or the bad competitor hypotheses and suggest that study setting and interindividual differences in traits related to personality are also important predictors of innovation. |
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0003-3472 |
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Equine Behaviour @ team @ |
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6589 |
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Connor, R.C.; Wells, R.S.; Mann, J.; Read,A.J. |
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The bottlenose dolphin: Social relationships in a fission-fusion society. |
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2000 |
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Cetacean Societies: Field Studies of Dolphins and Whales. |
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91-126 |
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cetacean social behavior, male alliance formation, most cetacean species, platanistid river dolphins, cetacean sociality, strategies and social bonds, female cetaceans, many cetologists, most mysticetes, sperm whale calves, passive fishing nets, variant whistles, historical whaling records, cetacean systematics, stable matrilineal groups, peak calving season, suction cup tags, mutualistic groups, cetacean vocalizations, focal animal studies, larger odontocetes, predictive signaling, individual cetaceans, sperm whale clicks, resident killer whales |
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Book Description
“Part review, part testament to extraordinary dedication, and part call to get involved, Cetacean Societies highlights the achievements of behavioral ecologists inspired by the challenges of cetaceans and committed to the exploration of a new world.”-from the preface by Richard Wrangham
Long-lived, slow to reproduce, and often hidden beneath the water's surface, whales and dolphins (cetaceans) have remained elusive subjects for scientific study even though they have fascinated humans for centuries. Until recently, much of what we knew about cetaceans came from commercial sources such as whalers and trainers for dolphin acts. Innovative research methods and persistent efforts, however, have begun to penetrate the depths to reveal tantalizing glimpses of the lives of these mammals in their natural habitats.
Cetacean Societies presents the first comprehensive synthesis and review of these new studies. Groups of chapters focus on the history of cetacean behavioral research and methodology; state-of-the-art reviews of information on four of the most-studied species: bottlenose dolphins, killer whales, sperm whales, and humpback whales; and summaries of major topics, including group living, male and female reproductive strategies, communication, and conservation drawn from comparative research on a wide range of species.
Written by some of the world's leading cetacean scientists, this landmark volume will benefit not just students of cetology but also researchers in other areas of behavioral and conservation ecology as well as anyone with a serious interest in the world of whales and dolphins.
Contributors are Robin Baird, Phillip Clapham, Jenny Christal, Richard Connor, Janet Mann, Andrew Read, Randall Reeves, Amy Samuels, Peter Tyack, Linda Weilgart, Hal Whitehead, Randall S. Wells, and Richard Wrangham. |
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University of Chicago Press |
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Chicago |
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Mann, J.;Connor, R.C.; Tyack, P.L.;Whitehead, H. |
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978-0226503417 |
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Equine Behaviour @ team @ |
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4427 |
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