Yawning and scratching contagion in wild spider monkeys (Ateles geoffroyi) [PDF]
Scientific Reports, 2023 Behavioural contagion is a widespread phenomenon in animal species, which is thought to promote coordination and group cohesion. Among non-human primates, however, there is no evidence of behavioural contagion in Platyrrhines (i.e.
Sara Valdivieso-Cortadella +4 more
doaj +6 more sources
Dietary ethanol ingestion by free-ranging spider monkeys (Ateles geoffroyi) [PDF]
Royal Society Open Science, 2022 Ethanol within ripe and over-ripe fruit is produced naturally through the metabolic activity of fermentative yeasts. As a consequence, frugivorous animals may chronically consume ethanol as part of their routine diet, although direct measurements of such
Christina J. Campbell +3 more
doaj +6 more sources
Gestural communication in wild spider monkeys (Ateles geoffroyi) [PDF]
Animal Cognition, 2023 Gestures play a central role in the communication systems of several animal families, including primates. In this study, we provide a first assessment of the gestural systems of a Platyrrhine species, Geoffroy’s spider monkeys (Ateles geoffroyi).
Felipe Villa-Larenas +3 more
doaj +6 more sources
Gestural Sequences in Wild Spider Monkeys (Ateles geoffroyi). [PDF]
Am J PrimatolGeoffroy's spider monkeys produce gestural sequences in the wild, mostly during aggressive, playful and sexual interactions. ABSTRACT To date, research on gestural communication in species other than great apes has been quite limited, especially in their natural habitat, although including a broader range of species in different settings is essential ...
Corral E +4 more
europepmc +4 more sources
Influence of tannic acid concentration on the physicochemical characteristics of saliva of spider monkeys (Ateles geoffroyi) [PDF]
PeerJ, 2022 Tannins are a chemical defense mechanism of plants consumed by herbivores. Variations in salivary physicochemical characteristics such as pH, total protein concentration (TP), and presence of proline-rich proteins (PRPs) in animals have been reported as ...
Carlos Eduardo Ramírez-Torres +5 more
doaj +3 more sources
The ability of captive spider monkeys, Ateles geoffroyi, to visually discriminate between different sizes of food and of non-edible objects [PDF]
Scientific ReportsField studies suggest that the size of potential food items plays an important role in the food selection behavior of nonhuman primates. However, there is only limited knowledge about how good primates are at visually discriminating between the size of ...
Anne-Sophie van Herwijnen +2 more
doaj +2 more sources
Salivary response of Geoffroy’s spider monkeys (Ateles geoffroyi) to consumption of plant secondary metabolites [PDF]
PeerJGeoffroy’s spider monkeys (Ateles geoffroyi) can modulate the acidity-alkalinity (pH) and salivary expression of total proteins (TP) and proline-rich proteins (PRPs) depending on the concentration of tannins in their diet, helping to counteract negative ...
Carlos Eduardo Ramírez-Torres +5 more
doaj +3 more sources
Serial visual reversal learning in captive black-handed spider monkeys, Ateles geoffroyi [PDF]
Animal CognitionRecent research suggests that socio-ecological factors such as dietary specialization and social complexity may be drivers of advanced cognitive skills among primates. Therefore, we assessed the ability of 12 black-handed spider monkeys (Ateles geoffroyi)
Jules Dorschner +2 more
doaj +2 more sources
Seasonal Changes in Socio-Spatial Structure in a Group of Free-Living Spider Monkeys (Ateles geoffroyi). [PDF]
PLoS ONE, 2016 Ecological and social factors influence individual movement and group membership decisions, which ultimately determine how animal groups adjust their behavior in spatially and temporally heterogeneous environments.
Sandra E Smith-Aguilar +2 more
doaj +2 more sources
Anatomical Description of the Main Gyri and Sulci of the Telencephalon of Alouatta belzebul. [PDF]
Anat Histol EmbryolABSTRACT The Alouatta belzebul is a species of howler monkey, of the Atelidae family and genus Alouatta. It is endemic in Brazil and has a separate geographic distribution, with two populations occurring: in the Amazon and in the Atlantic Forest on the coast of Northeast Brazil. The species is classified as ‘vulnerable’, and this is mainly justified by
Pereira DKS +4 more
europepmc +2 more sources