- Primate Behavior and Ecology
- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Evolutionary Psychology and Human Behavior
- Neuroendocrine regulation and behavior
- Evolutionary Game Theory and Cooperation
- Stress Responses and Cortisol
- Wildlife Ecology and Conservation
- Bat Biology and Ecology Studies
- Animal Behavior and Welfare Studies
- Child and Animal Learning Development
- Marine animal studies overview
- Gut microbiota and health
- Language and cultural evolution
- Olfactory and Sensory Function Studies
- Diet and metabolism studies
- Plant and animal studies
- Biochemical Analysis and Sensing Techniques
- Social and Intergroup Psychology
- Cultural Differences and Values
- Parasite Biology and Host Interactions
- Birth, Development, and Health
- Epigenetics and DNA Methylation
- Adipose Tissue and Metabolism
- Evolution and Genetic Dynamics
Leibniz ScienceCampus Primate Cognition
2017-2025
German Primate Center
2016-2025
University of Göttingen
2016-2025
Institute of Zoology
2017-2019
Max Planck Institute for Evolutionary Anthropology
2005-2012
Max Planck Society
2005-2012
Stony Brook University
2006
University of Würzburg
2003-2004
In humans and obligatory social animals, individuals with weak ties experience negative health fitness consequences. The buffering hypothesis conceptualizes one possible mediating mechanism: During stressful situations the presence of close partners buffers against adverse effects increased physiological stress levels. We tested this using data on (rate aggression received) environmental (low temperatures) stressors in wild male Barbary macaques (Macaca sylvanus) Morocco. These males form...
Recent studies have uncovered remarkable variation in paternity within primate groups. To date, however, we lack a general understanding of the factors that drive skew among groups and across species. Our study focused on hypotheses from reproductive theory involving limited control use "concessions" by investigating how covaries with number males, female estrous synchrony, rates extragroup paternity. In multivariate phylogenetically controlled analyses data 27 19 species, found strong...
The developmental costs and benefits of early locomotor play are a puzzling topic in biology, psychology, health sciences. Evolutionary theory predicts that energy-intensive behavior such as can only evolve if there considerable benefits. Prominent theories propose is (i) low cost, using surplus energy remaining after growth maintenance, (ii) beneficial because it trains motor skills. However, both largely untested. Studying wild Assamese macaques, we combined behavioral observations skill...
Intense reproductive competition and social instability are assumed to increase concentrations of glucocorticoids androgens in vertebrates, as a means coping with these challenges. In seasonally breeding redfronted lemurs (Eulemur fulvus rufus), the mating birth season associated increased male predicted pose such this paper, we investigate seasonal variation hormone excretion lemurs, examine whether is or ecological factors. Although dominance status has been shown affect individual stress...
Social bonds, here defined as strong, equitable and enduring social relationships, increase fitness in both male female primates irrespective of their dispersal regime. Despite the benefits they carry for some, bonds evolved more often among than which is thought to be caused by unsharable nature males’ limiting resource, fertilizations. Here we present a structured review variation primate mating systems, organization. In addition classical socio-ecological reasoning recent models on...
Logging and forest loss continues to be a major problem within Southeast Asia as result, many species are becoming threatened or extinct. The present study provides the first detailed comprehensive ecological data on Siberut macaque (Macaca siberu), primate living exclusively island of off west coast Sumatra. Our results show that M. siberu is ecologically similar its closest relative nemestrina occurring mainland, both being semi-terrestrial, mainly frugivorous (75-76%), exhibit large daily...
Why regularities in personality can be described with particular dimensions is a basic question differential psychology. Nonhuman primates also characterized terms of structure. Comparative approaches help reveal phylogenetic constraints and social ecological patterns associated the presence or absence specific dimensions. We sought to determine how different structures are related interspecific variation style. Specifically, we examined this 6 species macaques, because macaque style well...
Prenatal maternal stress affects offspring phenotype in numerous species including humans, but it is debated whether these effects are evolutionarily adaptive. Relating to adverse conditions, current explanations invoke either short-term developmental constraints on resulting decelerated growth avoid starvation, or long-term predictive adaptive responses (PARs) accelerated and reproduction response reduced life expectancies. Two PAR subtypes were proposed, acting predicted internal somatic...
Information on basic reproductive parameters and life-history traits is crucial for the understanding of primate evolution, ecology, social behavior, strategies. Here, we report 4 yr data wild female Assamese macaques (Macaca assamensis) at Phu Khieo Wildlife Sanctuary, northeastern Thailand. During 2 consecutive seasons, investigated behavior sexual swelling size in 16 females collected 1832 fecal samples. Using enzyme immunoassays, measured estrogen progesterone metabolites to assess...
Extended female sexuality in species living multimale-multifemale groups appears to enhance benefits from multiple males. Mating with many males, however, requires a low monopolizability, which is affected by the spatiotemporal distribution of receptive females. Ovarian cycle synchrony potentially promotes overlapping receptivity if fertile and periods are tightly linked. In primates, mating often decoupled hormonal control, hence reducing need for synchronizing ovarian events. Here, we test...
In numerous primates living in mixed-sex groups, females display probabilistic cues of fertility to simultaneously concentrate paternity dominant males while diluting it amongst others as a means reduce the risk infanticide and increase male care for offspring. A few species, however, lack these potentially conceal from males; yet, date, little is known about mating patterns their underlying proximate mechanisms such species. Here, we investigated activity sexual consortships relative female...
Humans form agonistic coalitions and alliances in many contexts, but this behavior is thought to be rare other species. A prominent hypothesis states that may under cognitive constraints, idea debated remains tested empirically. In study, we evaluate the constraint against 3 alternative hypotheses stress role of demography, substrate use, resource competition, for evolution male coalitions. comparative analysis a unique data set 86 multimale multifemale groups 38 nonhuman primate species...