Results 41 to 50 of about 3,275 (202)

Dental microwear in live, wild‐trapped Alouatta palliata from Costa Rica [PDF]

open access: yesAmerican Journal of Physical Anthropology, 1991
AbstractOne problem with dental microwear analyses of museum material is that investigators can never be sure of the diets of the animals in question. An obvious solution to this problem is to work with live animals. Recent work with laboratory primates has shown that high resolution dental impressions can be obtained from live animals.
Teaford, MF, Glander, KE
openaire   +2 more sources

Unveiling the Evolutionary History of cis‐Andean Alouatta (Atelidae, Alouattinae) Through Mitochondrial Genomes

open access: yesAmerican Journal of Primatology, Volume 87, Issue 5, May 2025.
Mitochondrial DNA analysis suggests that founder‐event speciation played a key role in the divergence between cis‐Andean and trans‐Andean clades, as well as in the diversification of cis‐Andean lineages. Ancestral range reconstruction using mitochondrial genomes indicates that the most recent common ancestor of Alouatta had a widespread distribution ...
Cíntia Povill   +11 more
wiley   +1 more source

The Effects of Dependent Infants on the Social Behavior of Mantled Howler Monkeys (Alouatta Palliate) [PDF]

open access: yes, 2012
Six weeks of observation on eight groups of wild mantled howler monkeys revealed that the presence of a dependent infant alters the frequency of social interactions between a female with an infant and other adult monkeys.
Katz, Keziah
core   +2 more sources

Rensch’s and Bergmann’s Rules in Cis-Andean South-American Howler Monkeys (Mammalia: Alouatta) [PDF]

open access: yes, 2018
Howler monkeys (genus Alouatta) are large folivorous primates living in South America. We tested for the application of both Rensch’s rule and Bergmann’s rule to body size variation in Alouatta. We found that Rensch’s rule does apply in howlers.
Bubadué, J   +11 more
core   +1 more source

A Dryopithecine Talus From Abocador de Can Mata (Vallès‐Penedès Basin, NE Iberian Peninsula): Morphometric Affinities and Evolutionary Implications for Hominoid Locomotion

open access: yesAmerican Journal of Biological Anthropology, Volume 186, Issue 4, April 2025.
ABSTRACT Objectives The functional interpretation of postcranial remains of Middle Miocene great apes from Europe (dryopithecines) suggests a combination of quadrupedalism and orthograde behaviors without modern analogs. We provide further insights based on an isolated dryopithecine talus (IPS85037) from the Middle Miocene (11.7 Ma) Abocador de Can ...
Oriol Monclús‐Gonzalo   +7 more
wiley   +1 more source

Howler Monkeys (Alouatta palliata mexicana) Produce Tannin-Binding Salivary Proteins

open access: yesInternational Journal of Primatology, 2015
Dietary tannins are ubiquitous in woody plants and may have serious negative effects on herbivores by inducing a loss of dietary protein and producing toxins if they are hydrolyzed in the gut. Many herbivorous mammals counter the negative effects of tannins through tannin-binding salivary proteins (TBSPs) that inactivate tannins by forming insoluble ...
Espinosa-Gomez, Fabiola   +7 more
openaire   +2 more sources

Caracterización de la vegetación y la fauna silvestre con fines ecoturísticos, de seis fincas cafetaleras en la comunidad El Bramadero, Condega, Estelí [PDF]

open access: yes, 2010
El presente estudio se realizó en seis fincas cafetaleras en la zona de amortiguamiento del Parque Ecológico Municipal Cerro Canta Gallo, en la comunidad El Bramadero Condega Esteli, zona característica del bosque de nebliselva.
Figueroa Espinoza, Alisson Sakina   +1 more
core  

Assessing the Determinants of Platyrrhine Quadrupedal Gait Kinematics in an Ecological and Phylogenetic Framework

open access: yesAmerican Journal of Primatology, Volume 87, Issue 2, February 2025.
Results of redundancy analysis and variation partitioning reveal that phylogeny influences quadrupedal kinematics more strongly than do substrate characteristics in platyrrhines moving in their natural habitat. Callitrichines are maximally divergent from other taxa due to their preference for asymmetrical gaits, higher speeds and higher stride ...
Liza J. Shapiro   +4 more
wiley   +1 more source

Sexual dimorphism in the loud calls of Azara’s owl monkeys (Aotus azarae): evidence of sexual selection? [PDF]

open access: yes, 2019
Primates use different types of vocalizations in a variety of contexts. Some of the most studied types have been the long distance or loud calls. These vocalizations have been associated with mate defense, mate attraction, and resource defense, and it ...
Adret, Patrice   +5 more
core   +2 more sources

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