Results 51 to 60 of about 3,292 (196)

Taste-induced facial responses in black-handed spider monkeys (Ateles geoffroyi)

open access: yesBehavioural Processes, 2021
Taste-induced facial expressions are thought to reflect the hedonic valence of an animal's gustatory experience. We therefore assessed taste-induced facial responses in six black-handed spider monkeys (Ateles geoffroyi) to water, sucrose, caffeine, citric acid and aspartame, representing the taste qualities sweet, bitter, and sour, respectively.
Sofia Pereira   +2 more
openaire   +3 more sources

Foraging and movement flexibility shape seed dispersal by an arboreal primate in a modified landscape

open access: yesOikos, EarlyView.
As habitats change, the effectiveness of animal‐mediated seed dispersal increasingly depends on animal responses to altered structure and resources. With habitat loss and degradation accelerating across the tropics, understanding how dispersers' foraging behavior and movement influence seed removal and deposition is critical to promoting forest ...
Anaid Cárdenas‐Navarrete   +2 more
wiley   +1 more source

A New Species of Dipetalonema (Filarioidea: Onchocercidae) from Ateles chamek from the Beni of Bolivia [PDF]

open access: yes, 2007
We describe a new species of Dipetalonema occurring in the body cavity of Ateles chamek (Humboldt, 1812) from north-central Bolivia. Morphologic characters serving to separate Dipetalonema yatesi n. sp.
Gardner, Scott Lyell   +2 more
core   +2 more sources

Do Fruit Nutrients Affect Subgrouping Patterns in Wild Spider Monkeys (Ateles geoffroyi)? [PDF]

open access: yes
One of the main costs of group living is feeding competition. Fission–fusion dynamics are thought to be a strategy to avoid overt competition for food resources.
A Fiore Di   +85 more
core   +1 more source

The effect of roads on spider monkeys' home range and mobility in a heterogeneous regenerating forest [PDF]

open access: yes, 2017
Arboreal fauna living in tropical ecosystems may be particularly affected by roads given their dependency on forest cover and the high vulnerability of such ecosystems to changes. Over a period of 4 yr, we followed subgroups of spider monkeys living in a
Aebischer   +56 more
core   +2 more sources

Introducing TropiCam‐AI: A taxonomically flexible automated classifier of Neotropical arboreal mammals and birds from camera‐trap data

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 4, Page 1235-1247, April 2026.
Abstract Rapid, accurate assessment of arboreal vertebrates in tropical forests remains a bottleneck for large‐scale biodiversity monitoring, due to the challenges and effort associated with traditional survey methods. To bridge this gap, arboreal camera‐trapping is emerging as a promising way to observe otherwise elusive species, opening new avenues ...
Andrea Zampetti   +15 more
wiley   +1 more source

Isolation and Characterization of Polymorphic Microsatellite Loci in Spondias radlkoferi (Anacardiaceae)

open access: yesApplications in Plant Sciences, 2014
Premise of the study: Microsatellite markers were developed for Spondias radlkoferi to assess the impact of primate seed dispersal on the genetic diversity and structure of this important tree species of Anacardiaceae.
Esther Aguilar-Barajas   +5 more
doaj   +1 more source

You are Not Welcome: Social Exchanges between Female Spider Monkeys (Ateles geoffroyi) [PDF]

open access: yes
Group living leads to competition for food between group members. Two types of intragroup food competition may occur: scramble competition, in which all group members use the same resource, such that feeding opportunities are equal for everyone; and ...
A Koenig   +63 more
core   +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  

Optimal random search, fractional dynamics and fractional calculus

open access: yes, 2013
What is the most efficient search strategy for the random located target sites subject to the physical and biological constraints? Previous results suggested the L\'evy flight is the best option to characterize this optimal problem, however, which ...
Chen, YangQuan, Zeng, Caibin
core   +1 more source

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