Results 41 to 50 of about 1,746 (174)

Comparing the cost-effectiveness of methods for estimating population density for primates in the Amazon rainforest Peru [PDF]

open access: yes, 2015
With increasingly extreme fluctuations in flood levels in the Amazon basin (Malhi et al. 2008, Marengo et al. 2012, Bodmer et al. 2014) the future of its' fauna is becoming more uncertain.
Bowles, Matthew David
core  

Nutritional and health status of woolly monkeys [PDF]

open access: yes, 2008
Woolly monkeys (Lagothrix lagotricha and L. flavicauda) are threatened species in the wild and in captivity. Numerous zoological institutions have historically kept Lagothrix lagotricha spp., but only a few of them have succeeded in breeding populations.
Ange-van Heugten, K.D.   +3 more
core   +2 more sources

Patrones de actividad y comportamiento social de Cebus Albifrons Versicolor en un fragmento de bosque en el Magdalena Medio [PDF]

open access: yes, 2013
Los monos cariblancos (Cebus albifrons versicolor) son endémicos de Colombia con una distribución restringida a bosques de los valles Interandinos. Al igual que las demás especies del género Cebus, estos primates tienen una organización social jerárquica
Parra Barreto, Ingrid Giseth
core  

The chimpanzee GH locus: composition, organization, and evolution [PDF]

open access: yes, 2012
In most mammals the growth hormone (GH) locus comprises a single gene expressed primarily in the anterior pituitary gland. However, in higher primates multiple duplications of the GH gene gave rise to a complex locus containing several genes.
Barrera-Saldaña, Hugo A   +4 more
core   +1 more source

Operant control of vocal behavior in the monkey Cebus albifrons [PDF]

open access: yesPsychonomic Science, 1965
Vocalizations of three monkeys (Cebus albifrons) were established as operants: they increased in frequency when followed by positive reinforcement and yielded to stimulus control.
Shirley A. Myers   +2 more
openaire   +1 more source

Selective impacts of subsistence hunting on mammal communities in Manu National Park, Peru

open access: yesBiotropica, Volume 56, Issue 5, September 2024.
We analyzed change in species relative abundance and functional composition of mammal communities, including non‐hunted species, along a hunting pressure gradient and included potential confounding environmental and disturbance gradients (distances to rivers, lakes, settlements, and trails; NDVI at survey point).
Jennifer Jane McFarlane   +5 more
wiley   +1 more source

Determinación de niveles de variabilidad genética y de números efectivos en ocho especies de primates neotropicales en Colombia mediante los microsatélites AP6, AP68, AP40, AP74, D5S111, D5S117, D6S260, D8S165, D14S51, y D17S804

open access: yesActa Biológica Colombiana, 2001
El análisis de 8 especies de primates neotropicales directamente muestreados en el campo (Cebus albifrons, Cebus apella, Cebus capucinus, Saimiri sciureus, Aotus nancymae, Alouatta seniculus, Ateles fusciceps y Lagothrix lagotricha) con 10 marcadores ...
M. Ruiz-García
doaj  

Caudal Vertebral Body Articular Surface Morphology Correlates with Functional Tail Use in Anthropoid Primates [PDF]

open access: yes, 2014
Prehensile tails, capable of suspending the entire body weight of an animal, have evolved in parallel in New World monkeys (Platyrrhini): once in the Atelinae (Alouatta, Ateles, Brachyteles, Lagothrix), and once in the Cebinae (Cebus, Sapajus ...
Deane, Andrew S.   +3 more
core   +1 more source

Estudio de la composición genética de las colecciones de primates de cuatro parques zoológicos colombianos y de una institución peruana mediante el uso de 10 loci microsatélites.

open access: yesActa Biológica Colombiana, 2001
Se analizaron parte de las colecciones de Primates de cuatro zoológicos colombianos y del Proyecto de Primatología de Iquitos, Perú mediante el uso de diez marcadores microsatélites hipervariables.
M. Ruiz-García   +7 more
doaj  

Instrumental electrodermal conditioning in the monkey (Cebus albifrons): Acquisition and long-term retention [PDF]

open access: yesAnimal Learning & Behavior, 1979
EightCebus albifrons monkeys received 25 sessions of discriminative operant conditioning of the skin conductance response (SCR), with colored lights as discriminative stimuli and with Sidman avoidance (SS-40 sec, RS-40 sec) scheduled during one light and response-contingent shock during the other, Discriminative stimulus segments were separated by 30 ...
H D, Kimmel   +4 more
openaire   +2 more sources

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