Results 31 to 40 of about 3,615 (212)

Differential impact of severe drought on infant mortality in two sympatric neotropical primates [PDF]

open access: yesRoyal Society Open Science, 2020
Extreme climate events can have important consequences for the dynamics of natural populations, and severe droughts are predicted to become more common and intense due to climate change.
Fernando A. Campos   +11 more
doaj   +1 more source

Selfish or altruistic? An analysis of alarm call function in wild capuchin monkeys, Cebus apella nigritus [PDF]

open access: yes, 2008
Alarm calls facilitate some antipredatory benefits of group living but may endanger the caller by attracting the predator's attention. A number of hypotheses invoking kin selection and individual selection have been proposed to explain how such behaviour
Alatalo   +87 more
core   +1 more source

Variation in grouping patterns, mating systems and social structure: what socio-ecological models attempt to explain [PDF]

open access: yes, 2013
Socio-ecological models aim to predict the variation in social systems based on a limited number of ecological parameters. Since the 1960s, the original model has taken two paths: one relating to grouping patterns and mating systems and one relating to ...
Andreas Koenig   +19 more
core   +1 more source

Energetic Priorities Across the Stages of Development: Effects of Age, Sex, and Seasonal Reproduction on Activity Budgets in Verreaux's sifaka (Propithecus verreauxi). [PDF]

open access: yesAm J Primatol
Individuals must decide how to allocate their time based on their priorities at different life stages. Juvenile and subadult sifaka prioritize social activity compared to adults, potentially due to its significance towards behavioral development. Sex differences in social activity emerge before adulthood, but sex differences in other activities emerge ...
Byun CA, Lutz MC, Lewis RJ.
europepmc   +2 more sources

Fruit scent and observer colour vision shape food-selection strategies in wild capuchin monkeys [PDF]

open access: yes, 2019
The senses play critical roles in helping animals evaluate foods, including fruits that can change both in colour and scent during ripening to attract frugivores.
Endo, Mizuki   +9 more
core   +1 more source

Object grasping and manipulation in capuchin monkeys (genera Cebus and Sapajus) [PDF]

open access: yes, 2018
The abilities to perform skilled hand movements and to manipulate objects dexterously are landmarks in the evolution of primates. The study of how primates use their hands to grasp and manipulate objects in accordance with their needs sheds light on how ...
Carducci, P., Sabbatini, G., Truppa, V.
core   +1 more source

Close encounters of the friendly kind: pacific between-group interactions in primates. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT While intergroup conflict features prominently in the behavioural ecology literature, its antonym, intergroup peace, has been a rather neglected phenomenon until recently. Neighbourly relations and affiliative interactions are far from uncommon.
Grueter CC, Pozzi L.
europepmc   +2 more sources

Rates of agonism among female primates: a cross-taxon perspective [PDF]

open access: yes, 2013
Agonism is common in group-living animals, shaping dominance relationships and ultimately impacting individual tness. Rates of agonism vary considerably among taxa, however, and explaining this variation has been central in ecological models of female ...
Altmann   +131 more
core   +1 more source

A phylogenomic perspective on the robust capuchin monkey (Sapajus) radiation : first evidence for extensive population admixture across South America [PDF]

open access: yes, 2018
Phylogenetic relationships amongst the robust capuchin monkeys (genus Sapajus) are poorly understood. Morphology-based taxonomies have recognized anywhere from one to twelve different species.
Aleixo, A   +11 more
core   +1 more source

Bonobos extract meaning from call sequences [PDF]

open access: yes, 2011
This research was funded by a Leverhulme Trust Research Leadership Award and the Wissenschaftskolleg zu Berlin. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Studies on ...
Clay, Zanna, Zuberbuehler, Klaus
core   +1 more source

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