- Primate Behavior and Ecology
- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Wildlife Ecology and Conservation
- Amphibian and Reptile Biology
- Rangeland Management and Livestock Ecology
- Evolutionary Psychology and Human Behavior
- Plant and animal studies
- Child and Animal Learning Development
- Earth Systems and Cosmic Evolution
- Evolution and Science Education
- Isotope Analysis in Ecology
- Environmental and Cultural Studies in Latin America and Beyond
- Circadian rhythm and melatonin
- Cultural Heritage Management and Preservation
- Bat Biology and Ecology Studies
- Neuroendocrine regulation and behavior
- Whitehead's Philosophy and Applications
- Human-Animal Interaction Studies
- Archaeological Research and Protection
Winthrop University
1997-2018
University of California, Berkeley
1978-1986
Neotropical monkeys of the genera Cacajao, Chiropotes, and Pithecia (Pitheciidae) are considered to be highly arboreal, spending most their time feeding traveling in upper canopy. Until now, use terrestrial substrates has not been analyzed detail this group. Here, we review frequency among pitheciin taxa determine ecological social conditions that might lead such behavior. We collated published unpublished data from 14 three genera. Data were gleaned 53 studies (including five on multiple...
No abstract
Abstract Mammals with restricted breeding seasons often show brief but intense bouts of male competition for mates and reproductive success has been attributed to competitive abilities, the most aggressively successful males able control access fertile females, or females choosing mate such males. We studied competition, mating behaviour female selection in patas monkeys, a primate period. observed two habituated groups Laikipia District, Kenya, during Jun.‐Aug. 1983. During study, one group...
Abstract Patas monkeys may be especially vulnerable to local extinction because they live in relatively small, female‐philopatric groups at low densities and are strongly polygynous. We assessed a patas monkey population Kenya's 9,700 km 2 Laikipia District over 25 years, using data collected 1979–1981 1992–2004. The were based on intensive observations of three study groups, “on the ground” counts, surveys residents. In 1979–1981, minimum 415 lived 14–15 groups. By 2000, best estimate...
Potential influences on natal dispersal of wild male patas monkeys ( Erythrocebus ) were investigated in Laikipia, Kenya, over a four-year period. Changes variables assessed the six months prior to dispersals. Dispersers left at between 24 and 42 age; 60% >36 age (= 'large juvenile' class). Most dispersals coincided with presence extra-group males study area. Large juvenile (LJMs) reduced time proximity other group members dispersal, driven primarily by less adult females. Aggression...
Behavioural interactions among members of a newly formed group Western lowland gorillas Gorilla gorilla are analysed, from the early stages formation through first several months after introduction. The consisted male, two half‐sisters and an unrelated female. Data were collected in 15 minute focal animal samples for 3 hours twice week 9 observation blocks total 99·25 hours. Hypotheses tested included: frequency affiliative behaviours would increase over time, with more between related...