Protective and territorial behavior in captive siamangs (Hylobates syndactylus)

Orgeldinger, Mathias

doi:10.1002/(sici)1098-2361(1997)16:4<309::aid-zoo3>3.0.co;2-e

Cited by 11 publications

(6 citation statements)

References 21 publications

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“…The Islands orangutans averaged somewhat lower activity and higher resting than reported by Mitani [1989] for noncaptive animals, but our results were all within 1 SD of the values reported by Perkins [1992] for 29 captive orangutans. The siamangs in the present study showed levels of activity nearly identical to those of the captive animals in Orgeldinger's [1997] study. The Islands tapirs spent slightly less time resting/sleeping, but the amount of time spent in active behaviors was similar to that in captive South American tapirs [Mahler, 1984].…”

Section: Activity and Space Utilizationsupporting

confidence: 79%

Activity‐based exhibition of five mammalian species: Evaluation of behavioral changes

et al. 2003

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Activity-based management of captive animals involves the training and movement of animals among several exhibits and holding areas. We studied the effectiveness of this system in producing variation in behavior, controlling stereotypies, and eliciting natural behaviors. Twelve animals representing five species of mammals (orangutans, siamangs, tapirs, babirusa, and Sumatran and Siberian tigers) were the subjects of focal observations measuring activity levels, stereotypies, natural behaviors, and space utilization. Statistical analysis was used to assess the association between variation in behavior and the movement among the four exhibits. For several animals, the persistence of behavioral changes was studied over a period of 3 years. We also examined the influence of the previous animal in the exhibit on the focal animal. Moving animals among the exhibits affected activity levels and/or space utilization in all animals in the activity-based management system. In cases for which 3-year data were available, there was evidence of habituation to the novelty of changing exhibits. Stereotypies, usually in the form of pacing, were affected by exhibits, providing the opportunity to manipulate these behavior patterns by exhibit placement. Natural behaviors in the form of urine-spraying by the female tapir and the Sumatran tiger were affected by which animal had previously been in the exhibit. The results support the conclusion that exposure to varying exhibits produces variation in the behavior of the animals and elicits natural behaviors that would be unlikely to occur in a traditional single-species exhibit. Activity-based management provides

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Section: Activity and Space Utilizationsupporting

confidence: 79%

Activity‐based exhibition of five mammalian species: Evaluation of behavioral changes

et al. 2003

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“…Orgeldinger (1997) described the aggressive biting of objects as a threat in Symphalangus syndactylus, possibly derived from displaced aggression. Other explicit forms of aggression included rapid erratic brachiation and shaking displays, which commonly occur in gibbon intergroup conflicts (Baldwin and Teleki, 1976;Berkson et al, 1971;Carpenter, 1940;Ellefson, 1974).…”

Section: Discussionmentioning

confidence: 99%

“…other hylobatid anogenital displays in that it is accompanied by a suite of other behaviors considered agonistic (Baldwin and Teleki, 1976;Carpenter, 1940;Ellefson, 1974;Orgeldinger, 1997). Hostile presenting of adult human-reared gibbons toward humans included ≥ 1 of the following: teeth chomping occasionally producing a loud clicking; audible breathing through the mouth; intense staring with an aggressive facial expression; and agonistic brachiation, jumping, biting, shaking, kicking, or hitting the enclosure or water containers.…”

Section: Behavioral Components Of the Hostile Presentmentioning

confidence: 99%

Hostile Presenting in Captive Gibbons

Mootnick¹,

Baker

Nadler

et al. 2006

Int J Primatol

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From 1976 to 2005, we observed 100 captive gibbons (Hylobatidae) in all 4 genera at the Gibbon Conservation Center (GCC) and noted a behavior not previously thought to be part of the ethogram of gibbons-hostile presenting-in 25 of 66 individuals of Hylobates.We observed gibbon-togibbon hostile presenting, featuring anogenital presenting combined with agonistic behavior, only in parent-reared gibbons. When directed toward humans, the expression of the behavior varied with the displaying gibbon's rearing condition. We here describe the behavioral details of hostile presenting as expressed in captivity.

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“…One animal threatens another animal but does not make physical contact Contact aggression One animal makes physical contact with another animal by way of a slap, hit, punch, or bite exclusive of play a Full or partial definition from Kuhar (2008). b Partial definitions from Orgeldinger (1997).…”

Section: Data Collection Techniquesmentioning

confidence: 99%

Siamangs (Hylobates syndactylus) and White-Cheeked Gibbons (Hylobates leucogenys) Show Few Behavioral Differences Related to Zoo Attendance

Smith

Kuhar

2010

Journal of Applied Animal Welfare Science

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The effect of visitors on behavior and welfare of nonhuman animals in the zoo has been an active research topic during the last few decades. Although research has variously shown negative or positive impacts of zoo visitors on animals in captivity, previous primate research at Disney's Animal Kingdom suggests the importance of visual barriers in allowing animals to cope with large crowds. Examining this further, this study monitored the behavior of white-cheeked gibbons (Hylobates leucogenys) and siamangs (Hylobates syndactylus) in large, open exhibits. Behavioral data showed rates of social behavior and percentage of time engaged in solitary behavior did not differ between low and high visitor-attendance days. Both gibbons and siamangs spent more time in areas away from the public on high attendance days. Supporting previous findings, results imply visual barriers and ability to retreat from crowds may have provided these animals with choice and minimized potential negative visitor impact. Future research should focus on the relationship between attendance and actual crowds at exhibits; it should utilize multi-institutional methodologies to control for variance and look for individual and demographic differences between individuals.

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Protective and territorial behavior in captive siamangs (Hylobates syndactylus)

Cited by 11 publications

References 21 publications

Activity‐based exhibition of five mammalian species: Evaluation of behavioral changes

Activity‐based exhibition of five mammalian species: Evaluation of behavioral changes

Hostile Presenting in Captive Gibbons

Siamangs (Hylobates syndactylus) and White-Cheeked Gibbons (Hylobates leucogenys) Show Few Behavioral Differences Related to Zoo Attendance

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