Do Predators and Thermoregulation Influence Choice of Sleeping Sites and Sleeping Behavior in Azara’s Owl Monkeys (Aotus azarae azarae) in Northern Argentina?

  title={Do Predators and Thermoregulation Influence Choice of Sleeping Sites and Sleeping Behavior in Azara’s Owl Monkeys (Aotus azarae azarae) in Northern Argentina?},
  author={Amanda G. Savagian and Eduardo Fern{\'a}ndez‐Duque},
  journal={International Journal of Primatology},
The spatiotemporal aspects of sleeping behavior are indicative of the ecological pressures that primate species face. We investigated the potential influence of predation and thermoregulatory constraints on sleeping site choice and sleep-related behaviors in a population of cathemeral owl monkeys (Aotus azarae azarae) in Formosa, Argentina. During 10 mo, we recorded data on 153 diurnal sleeping bouts (N = 5 groups), sleeping tree physical characteristics (diameter at breast height [DBH], height… 

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The Effects of Social Factors and Kinship on Co-sleeping of Black-and-Gold Howler Monkeys (Alouatta caraya)

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Allogrooming in Male-Female Pairs of Captive Owl Monkeys (Aotus nancymaae)

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Nocturnal behavior by a diurnal ape, the West African chimpanzee (Pan troglodytes verus), in a savanna environment at Fongoli, Senegal.

  • J. Pruetz
  • Psychology
    American journal of physical anthropology
  • 2018
Evidence is provided that chimpanzees may exhibit behaviors that allow them to avoid high temperatures in a savanna environment, such as feeding and socializing at night during the hottest time of year and in the brightest moon phases, which support theories invoking thermal stress as a selective pressure for hominins in open environments where heat would constrain temporal foraging niches.

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The reproductive success and viability of arboreal primates will depend on the correct selection of nesting sites. The night monkey Aotus zonalis, presents an interesting adaptation as it is not only

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Sleeping Site Selection by the Golden‐handed Tamarin Saguinus midas midas: The Role of Predation Risk, Proximity to Feeding Sites, and Territorial Defence

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Sleeping site preferences in tufted capuchin monkeys (Cebus apella nigritus)

It is suggested that predation avoidance is a predominant factor driving sleeping site preferences, and the preference for trees with low probability of shedding branches suggest that social preferences and safety from falling during windy nights may also affect sleeping tree selection.

Use of sleeping trees by ursine colobus monkeys (Colobus vellerosus) demonstrates the importance of nearby food

This study suggests that access to food, range and resource defense, and predation avoidance were more important considerations in sleeping site selection than thermoregulation for ursine colobus.

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The temporal pattern of use of sleeping sites, with a preference for four of the sleeping sites but few reuses during consecutive nights, may be a trade‐off between the need to have several sleeping sites (decreasing detection by predators and travel costs to feeding sites), and the need for sleep in well‐known sites (guaranteeing a faster escape in case of predator attack).

Exploring the Multiple Functions of Sleeping Sites in Northern Pigtailed Macaques (Macaca leonina)

Overall, predator avoidance and food efficiency were the main factors influencing the selection of sleeping sites, which highlights the impact anthropogenic activities may have on sleeping site selection and the flexibility of sleeping patterns in a single species.

Sleeping Site Selection by White-faced Capuchins ( Cebus capucinus ) in 
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Baboon sleeping site preferences and relationships to primate grouping patterns

  • W. Hamilton
  • Environmental Science
    American journal of primatology
  • 1982
Choice of sleeping sites in an order appearing to agree with degree of inaccessibility to most predators suggests the hypothesis that predation avoidance is the major basis for use and choice of particular sleeping sites.

Do Forest Composition and Fruit Availability Predict Demographic Differences Among Groups of Territorial Owl Monkeys (Aotus azarai)?

It is proposed that owl monkey groups inhabit territories of different structure and composition and food availability, yet ones that contain similar quantities of, mostly, dry season fruit sources, to overcome food shortages safely during limiting periods in this markedly seasonal forest.

Seasonal Effects on Sleeping Site Ecology in a Nocturnal Pair-Living Lemur (Avahi occidentalis)

The hypothesis that season affects sleeping site selection in an arboreal primate species living in a highly seasonal environment is supported and a better monitoring of the forest in this season is suggested to guarantee their future survival.