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Renewed interest in fission‐fusion dynamics is due to the recognition that such dynamics may create unique challenges for social interaction and distinctive selective pressures acting on underlying…
Spatial, temporal, and physical characteristics of livestock depredations by large carnivores along a Kenyan reserve border
Innovative problem solving by wild spotted hyenas
- Sarah Benson-Amram, K. Holekamp
- PsychologyProceedings of the Royal Society B: Biological…
- 7 October 2012
It is demonstrated for the first time in a non-human animal that those individuals exhibiting a greater diversity of initial exploratory behaviours are more successful problem solvers, and that neophobia was a critical inhibitor of problem-solving success.
Fission-Fusion Dynamics : New Research Frameworks. Commentaries
Renewed interest in fission-fusion dynamics is due to the recognition that such dynamics may create unique challenges for social interaction and distinctive selective pressures acting on underlying…
Symbiotic bacteria appear to mediate hyena social odors
- K. Theis, A. Venkataraman, T. Schmidt
- BiologyProceedings of the National Academy of Sciences
- 11 November 2013
Next-generation sequencing is used to survey deeply the bacterial communities in the scent glands of wild spotted and striped hyenas, showing that these communities are dominated by fermentative bacteria and that the structures of these communities covary with the volatile fatty acid profiles of scent secretions in both hyena species.
Evolutionary forces favoring intragroup coalitions among spotted hyenas and other animals
Overall, hyenas made flexible decisions regarding whether or not to intervene in fights, modifying their tendency to cooperate based on multiple types of information about their immediate social and ecological environments.
Hunting rates and hunting success in the spotted hyena (Crocuta crocuta)
Although no significant sex differences were observed in juvenile or adult hunting rates, low-ranking adult females hunted at significantly higher hourly rates than did higher-ranking females, and young hyenas were poor hunters, and did not achieve adult competency levels until they were 5–6 years old.
Social and ecological determinants of fission–fusion dynamics in the spotted hyaena
Altered behaviour in spotted hyenas associated with increased human activity
It is suggested that behavioural changes were not associated with decreased hyena population density, which suggests the behavioural plasticity typical of this species may protect it from extinction.
Brain size predicts problem-solving ability in mammalian carnivores
- Sarah Benson-Amram, B. Dantzer, G. Stricker, E. M. Swanson, K. Holekamp
- Biology, PsychologyProceedings of the National Academy of Sciences
- 25 January 2016
An experiment to inquire whether specific neuroanatomical or socioecological measures predict success at solving a novel technical problem among species in the mammalian order Carnivora found that species with larger brains relative to their body mass were more successful at opening the boxes.