Results 41 to 50 of about 802 (153)

Numerical cognition in black-handed spider monkeys (Ateles geoffroyi)

open access: yesBehavioural Processes, 2022
Evaluamos dos aspectos de la cognición numérica en un grupo de nueve monos araña en cautiverio (Ateles geoffroyi). Se utilizaron placas de Petri con cantidades variables de alimentos para evaluar la discriminación de cantidades relativas, y se utilizaron cajas equipadas con tarjetas punteadas para evaluar la discriminación de números discretos con ...
Tiffany Claire Bosshard   +2 more
openaire   +4 more sources

Differential fruit choice in two simpatric monkey species and frugivorous bats in southern Mexico

open access: yesActa Biológica Colombiana, 2018
In order to identify the role played by plant species as a food source in the fruit election of dispersing agents (Alouatta pigra Lawrence 1933, Ateles geoffroyi Kuhl 1820 and frugivorous bats), we developed a study in dry tropical forests in Yucatan ...
Henry Fernando Dzul-Cauich   +3 more
doaj   +1 more source

ASPM and the evolution of cerebral cortical size in a community of New World monkeys.

open access: yesPLoS ONE, 2012
The ASPM (abnormal spindle-like microcephaly associated) gene has been proposed as a major determinant of cerebral cortical size among primates, including humans.
Fernando A Villanea   +3 more
doaj   +1 more source

Universal behaviors as candidate traditions in wild spider monkeys. [PDF]

open access: yesPLoS ONE, 2011
Candidate traditions were documented across three communities of wild spider monkeys (Ateles geoffroyi) using an a priori approach to identify behavioral variants and a statistical approach to examine differences in their proportional use.
Claire J Santorelli   +2 more
doaj   +1 more source

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

open access: yesThe Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot   +4 more
wiley   +1 more source

Humans and platyrrhines share a pattern of articular variance

open access: yesThe Anatomical Record, EarlyView.
Abstract Previous work has identified a pattern of articular shape variation in modern human limb joints, in which convex joint surfaces exhibit constrained variance relative to their more variable concave conarticulars. This pattern is notable given that joint morphogenesis is influenced by local biomechanical environments, which vary substantially ...
Haley Horbaly, Liam Zachary
wiley   +1 more source

From steps to home ranges: How habitat disturbance influences the movement drivers of an arboreal primate

open access: yesJournal of Animal Ecology, EarlyView.
Challenging the narrative about howler monkeys' high resilience to anthropogenic changes, our multiscale analysis reveals the costs of habitat disturbance to their movement ecology. We identify thermal limitations, reduced travel efficiency, and significant spatial saturation.
Anaid Cárdenas‐Navarrete   +4 more
wiley   +1 more source

Predicting Mammal Species Suitable for Chagas Disease Spread Using a Machine‐Learning Framework

open access: yesIntegrative Zoology, EarlyView.
Chagas disease is maintained in wildlife by Trypanosoma cruzi cycling among many mammal species, but we still do not know the full range of potential hosts. Using machine learning and ecological/behavioral traits, we found that kissing bugs overlap with 573 mammal species and tend to feed on mammals that are den‐dwelling, medium‐to‐large in size, and ...
Maya Rocha‐Ortega   +3 more
wiley   +1 more source

Sociability Under Anthropogenic Change: From Individual Behaviour to Population‐Level Consequences

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
Our review synthesises empirical and theoretical research on how anthropogenic environmental change reshapes animal social behaviour from individuals to populations. We use sociability as an individual‐level lens, distinguishing context‐dependent expression from repeatable interindividual differences and linking both to social relationships, network ...
Paulina Kowalczyk, Barbara Pietrzak
wiley   +1 more source

Estructura genética y relaciones filogenéticas entre diferentes grupos del Género Ateles (Primates) mediante marcadores microsatélites: Concordancia entre lo molecular y lo craneométrico

open access: yesActa Biológica Colombiana, 2001
Un total de 152 muestras de pelo y sangre de Atelesde 7 diferentes taxa fueron analizadas para5 marcadores microsatélites (AP40, AP68, AP74, D5S117 y D8S165).
M. Ruiz-García   +3 more
doaj  

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