Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Julia Ostner"'
Publikováno v:
Hormones and Behavior. 131:104968
Energy availability drives an individual's fitness and can be affected by diverse energetic challenges. The assessment of hormones involved in metabolic activity and energy mobilization provides a gateway to the study of physiological adaptations in
Publikováno v:
Hormones and Behavior. 119:104661
Mammals living in stable social groups often mitigate the costs of group living through the formation of social bonds and cooperative relationships. The neuropeptide hormone oxytocin (OT) has been proposed to promote both bonding and cooperation alth
Publikováno v:
The Behavioral and brain sciences. 40
Burkart et al. suggest that social learning can explain the cognitive positive manifold for social animals, including humans. We caution that simpler explanations of positive trait intercorrelations exist, such as genetic load. To test the suggested
Autor:
Julia Ostner, Oliver Schülke
Publikováno v:
Behaviour. 151:871-906
Social bonds, here defined as strong, equitable and enduring social relationships, increase fitness in both male and female primates irrespective of their dispersal regime. Despite the benefits they carry for some, social bonds evolved more often amo
Publikováno v:
Behaviour. 151:907-934
In group living animals, there is pronounced variation in the formation and function of cooperation between males via coalitionary aggression. Pandit, van Schaik and colleagues developed a mathematical model to predict the evolution of different coal
Publikováno v:
Behaviour. 148:1256-1274
Abstract Dyadic agonistic dominance relationships are thought to result from asymmetries in both intrinsic and extrinsic power. One form of extrinsic power is the ability to solicit agonistic support from other individuals. In extreme cases extrinsic
Publikováno v:
Genes, Brain and Behavior. 17:e12443
The COMT Val158 Met polymorphism is one of the most widely studied genetic polymorphisms in humans implicated in aggression and the moderation of stressful life event effects. We screened a wild primate population for polymorphisms at the COMT Val158
Publikováno v:
Hormones and behavior. 63(1)
In many cercopithecine primates females display probabilistic cues of fertility to indicate the periovulatory period to males. These cues may include female behaviour, acoustic signals, and morphological signs such as the anogenital swelling. However
Publikováno v:
Hormones and behavior. 59(1)
In polygynous mammals, where males compete over access to females, the potential of males to monopolize reproductive females largely depends on the spatio-temporal distribution of reproductive females. We investigated mechanisms of male reproductive
Publikováno v:
Hormones and behavior. 54(5)
In group-living animals relative rank positions are often associated with differences in glucocorticoid output. During phases of social stability, when dominance positions are clear and unchallenged, subordinates often face higher costs in terms of s