The Study of Captive Baboon Behavior

Brent, Linda

doi:10.1007/978-0-387-75991-3_2

Cited by 5 publications

(5 citation statements)

References 92 publications

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“…Ancestors of baboons and macaques split with hominoids when the Hominoidea split from the Cercopithecoidea, making them the phylogenetically closest living relatives to humans of any biomedical models besides chimpanzees . A major advantage of the baboon model, in addition to their similarity to humans, is the behavior and biology of baboons have been studied extensively in captivity and in the wild . Given the prevalence and utility of baboons as biomedical models, identifying baboon aging biomarkers is of great importance to research on the aging process.…”

Section: Discussionmentioning

confidence: 99%

Walking speed as an aging biomarker in baboons (Papio hamadryas)

Huber

Gerow

Nathanielsz

2015

J of Medical Primatology

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Background Walking speed is an important human aging biomarker. Baboons are valuable translational models for aging studies. Establishing if walking speed is a good aging biomarker has value. We hypothesized there would be characteristic age-related decline in baboon walking speed. Methods We studied 33 female baboons ages 5–21 yrs. Walking speed was calculated by the time to walk between landmarks separated by known distances. A regression model was developed to describe the relationship between speed, age, and body weight. Results Speed negatively associated with age, a relationship enhanced by increased weight (p < 0.0005). For 16 kg animals, speed declined approximately 0.6 cm/sec yearly. For each additional kg of weight, speed declined an additional 0.3 cm/sec yearly. Conclusions Baboon walking speed declines with age, an effect modulated by weight. Ease of measurement and strong age association make walking speed a valuable biomarker for aging research with this important experimental species.

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Section: Discussionmentioning

confidence: 99%

Walking speed as an aging biomarker in baboons (Papio hamadryas)

Huber

Gerow

Nathanielsz

2015

J of Medical Primatology

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“…As with Line (1995), the animals in the present study may have been focusing on or inhibited by the observer and therefore less likely to move around the cage. However, in comparison to macaques, baboons showed little behavioral change, which may be due to their more relaxed demeanor (Brent, 2009). …”

Section: Discussionmentioning

confidence: 99%

“…This species was also referred to as the most “frenetic” when compared to two other species of macaques (MacDonald, 1971). In contrast, baboons have been characterized as both relaxed and highly adaptable to variations in both their physical and social environment (Brent, 2009). …”

Section: Introductionmentioning

confidence: 99%

The influence of observer presence on baboon (Papio spp.) and rhesus macaque (Macaca mulatta) behavior

Iredale

Nevill

Lutz

2010

Applied Animal Behaviour Science

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A common method for collecting behavioral data is through direct observations. However, there is very little information available on how a human observer affects the behavior of the animals being observed. This study assesses the effects of a human observer on the behavior of captive nonhuman primates. The subjects were 19 singly housed baboons (nine male, 10 female) and 20 singly housed rhesus macaques (10 male, 10 female) that were not habituated to the presence of an observer. Four 30-min observations were conducted on each animal. Two observations were conducted with an observer present ("present" condition), while the remaining two observations had no observer present ("absent" condition). All observations were recorded with a video camera and were balanced for time of day, with one of each type of observation taking place in the morning and afternoon. In the presence of an observer, appetitive behavior was significantly reduced in both species [F(1,35) = 8.22, P < 0.01]. When an observer was present, females of both species also rested more and performed fewer manipulative behaviors than males [rest: F(1,35) = 7.10, P < 0.05; manipulative: F (1,35) = 6.66, P < 0.05]. Likewise, macaques rested significantly more [F(1,35) = 11.62, P < 0.005] and exhibited fewer manipulative behaviors in the presence of an observer [F(1,35) = 11.06, P < 0.005], while baboons showed no change. Female macaques showed the greatest decrease in activity while an observer was present [F(1,35) = 4.22, P <0.05]. Based on these results, the presence of a human observer does appear to affect the behavior of unhabituated, singly housed baboons and macaques, but the effect differs by both sex and species.

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“…Various substrates are provided to allow for a range of normal locomotor behavior, climbing, and environmental enrichment. Housing based on species-appropriate social structure allows for behavior and interactions that are typical for wild baboons, and has facilitated efficient collection of biomedical data in an environment that is healthy for the animals 30 . Many behavioral and clinical data are routinely collected by animal care and veterinary staff in accordance with accepted protocols by the Institutional Animal Care and Use Committee and were available for this study (i.e., female reproductive data, birth and death records, weights).…”

Section: Methodsmentioning

confidence: 99%

Reproductive status and sex show strong effects on knee OA in a baboon model

Macrini

Coan

Levine

et al. 2013

Osteoarthritis and Cartilage

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Objective We aimed to characterize severity and occurrence of knee osteoarthritis (OA), and effects of age, sex, body weight, and reproductive status on population-level normal variation in this condition in the baboon, a natural model of human knee OA. Methods We visually inspected articular cartilage of distal right femora of 464 baboons (309 females, 155 males) and assigned an OA severity score (comparable to a modified Outerbridge score) from 1 = unaffected to 4 = advanced OA (eburnation). Presence/absence of osteophytes was recorded. We tested for significant effects of age, sex, weight, and, in females, reproductive status (pre-, peri-, or post-menopausal) on OA. When appropriate, analyses were repeated on an age-matched subset (153 of each sex). Results Knee OA was more frequent and severe in older animals (p < 0.0001), but significant age variation was apparent in each severity grade. Sex differences within the younger and older age groups suggest that males develop knee OA earlier, but females progress more quickly to advanced disease. There is a strong relationship between reproductive status and OA severity grade in females (p = 0.0005) with more severe OA in peri- and post-menopausal female baboons, as in humans. Conclusions Idiopathic knee OA is common in adult baboons. Occurrence and severity are influenced strongly by reproductive status in females, and by sex with regard to patterns of disease progression – providing an animal model to investigate sex-specific variation in OA susceptibility in which the environmental heterogeneity inherent in human populations is vastly reduced.

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The Study of Captive Baboon Behavior

Cited by 5 publications

References 92 publications

Walking speed as an aging biomarker in baboons (Papio hamadryas)

Walking speed as an aging biomarker in baboons (Papio hamadryas)

The influence of observer presence on baboon (Papio spp.) and rhesus macaque (Macaca mulatta) behavior

Reproductive status and sex show strong effects on knee OA in a baboon model

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