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Mutational changes in S-cone opsin genes common to both nocturnal and cathemeral Aotus monkeys
(Wiley-liss, Div John Wiley & Sons Inc, 2007-07)
Aotus is a platyrrhine primate that has been classically considered to be nocturnal. Earlier research revealed that this animal lacks a color vision capacity because, unlike all other platyrrhine monkeys, Aotus has a defect ...
Influences of moonlight, ambient temperature, and food availability on the diurnal and nocturnal activity of owl monkeys (Aotus azarai)Influences of moonlight, ambient temperature, and food availability on the diurnal and nocturnal activity of owl monkeys (Aotus azarai)
(Springer, 2003-09)
The study of activity rhythms, their potential zeitgebers and masking factors among free-ranging primates has received relatively little attention in the past. Most primates are diurnal, a few of them nocturnal, and even ...
Daily activity pattern of reintroduced giant anteaters (Myrmecophaga tridactyla): effects of seasonality and experience
(De Gruyter, 2017-02)
We assessed the effect of seasonality and intrinsic conditions on daily activity pattern of giant anteaters reintroduced in the Iberá Reserve, Argentina. During 2007-2012 we gathered 159 24-h focal samples on 15 radio-marked ...
Owl monkeys Aotus spp in the wild and in captivity
(Zoological Society of London, 2012-01)
Owl monkeys Aotus spp have the potential to be a great model to accomplish a thorough integration of zoo and field research. Their most salient features are their nocturnal habits, monogamous social organization and paternal ...
Seasonal Variation of Temporal Niche in Wild Owl Monkeys (Aotus azarai azarai) of the Argentinean Chaco: A Matter of Masking?
(Taylor & Francis, 2012-07)
Among the more than 40 genera of anthropoid primates (monkeys, apes, and humans), only the South American owl monkeys, genus Aotus, are nocturnal. However, the southernmostly distributed species, Aotus azarai azarai, of ...
Cathemerality and Lunar Periodicity of Activity Rhythms in Owl Monkeys of the Argentinian Chaco
(Karger, 2006-12)
Although most South American owl monkeys are mainly nocturnal, Aotus azarai azarai of the Argentinean Chaco regularly shows diurnal activity. In this study we examined the strong influence of moonlight on its diurnal and ...
Influencia del ciclo lunar sobre los patrones de actividad de la comunidad de felinos del magdalena medio, colombia
(Universidad de los AndesBiologíaFacultad de CienciasDepartamento de Biología, 2021)
Activity patterns of large and medium-sized felids are usually influenced by a diverse set of factors, and their activity can vary throughout the circadian cycle, thus allowing their coexistence and increasing the survival. ...
Direct and indirect effects of roads on activity patterns of the largest South American artiodactyl (Lama guanicoe) in a hyper-arid landscape
(Elsevier Gmbh, 2020-05)
The effects of roads on natural environments have been studied in many places around the world. The presence of roads can be considered for native animals as a disturbance stimulus. Besides, roads can facilitate arrival ...
Infant Development and Parental Care in Free-Ranging Aotus azarai azarai in Argentina
(Springer/Plenum Publishers, 2005-12)
Studies of infant development and parental behavior in free-ranging owl monkeys have been constrained by their nocturnal habits. Taking advantage of the cathemeral activity pattern of Aotus azarai azarai in the Argentinean ...
Relative abundance and activity patterns of terrestrial carnivorous mammals in Península Valdés, Patagonia, Argentina
(De Gruyter, 2020-08-19)
The purpose of this study was to assess the relative abundance and activity patterns of terrestrial carnivorous mammals living in San Pablo de Valdés Wildlife Reserve, which is located in Península Valdés, Chubut province, ...