Observations on the Social Behavior of Tree Shrews in Captivity

Sorenson, M. W.; Conaway, C. H.

doi:10.1159/000155048

Cited by 44 publications

(5 citation statements)

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“…The preference of T. tana for the ground may even have been underestimated in this study because T. tana individuals were almost always on the ground when the animal laboratory was entered by the observer, and the individuals would move up into the branches when their cages were approached. Sorenson & Conaway (1964) and Sorenson (1970) reported similar differences in substrate use between these two species in captivity.…”

Section: Substrate Usementioning

confidence: 71%

The grasping behaviour, locomotion and substrate use of the tree shrews Tupaia minor and T. tana (Mammalia, Scandentia)

Sargis

2001

Journal of Zoology

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The grasping behaviour, locomotion and substrate use of the tree shrews Tupaia minor and T. tana were investigated in the Department of Zoological Research at the National Zoological Park in Washington, DC. Seven arboreal T. minor and ®ve terrestrial T. tana were observed and videotaped for 10-min focal animal samples totalling 77 h of observation. Locomotion and substrate use were scored and images of grasping behaviour were captured from videotapes. Tupaia minor individuals were videotaped crossing dowels and the number of dowel crossings that included grasps were scored. In 84% of dowel crossings, T. minor individuals used either their hallux or their pollex to grasp the dowels. Tupaia minor was also more active, moved more quickly, was more arboreal, rooted less, reversed its feet more,¯exed its forelimbs more and was more semi-plantigrade than T. tana. It is proposed that arboreal tupaiids, such as Ptilocercus lowii and T. minor, may represent better models for early primates than didelphid marsupials because they are capable of grasping and are more closely related to primates.

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Section: Substrate Usementioning

confidence: 71%

The grasping behaviour, locomotion and substrate use of the tree shrews Tupaia minor and T. tana (Mammalia, Scandentia)

Sargis

2001

Journal of Zoology

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“…Adult female residents are often tolerated in territorial invasions by neighbouring adult females (KAWAMICHI • KAWAMICHI, 1979). Also in captivity, adult females sleep together in one nest box in T. glis (KAUFMANN, 1965), T. long# pes (SORENSON & CONAWAY, 1966) and T. chinensis SORENSON, 1970;HASLER & SORENSON, 1974). On the other hand, tolerance between males has hardly been observed in captive tree shrews of various species as well as in T. glis in our field study.…”

Section: Tolerance Between Femalesmentioning

confidence: 53%

Social system and independence of offspring in tree shrews

Kawamichi

1982

Primates

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ABSTRACT. Field observations on 117 tree shrews (Tupaia glis) were conducted over a period of six months in Singapore. Of 19 groups (pairs or harems, with or without offspring), nine changed their composition mainly through the disappearance of juveniles. Juvenile males tended to disappear earlier than juvenile females. The areas used by the groups remained stable throughout their disappearance and membership changes. The onset of mating was observed in December, and the synchronous disappearance of offspring of the preceding reproduction typically occurred in late January. However, in one group, two litters coexisted. Offspring were usually excluded from their group presumably by the adult member of the same sex. Males disappeared at the timing of oestrus in their mothers, while females probably disappeared during the later stages of pregnancy of their mothers.

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“…Standard veterinary checks were made to insure reasonable health of the animals. The colony conditions and laboratory care of these have been described elsewhere (17,22).…”

Section: Tupaiadsmentioning

confidence: 99%

Comparative effects of temperature exposure on mass and oxidative enzyme activity of brown fat in insectivores, tupaiads and primates

Chaffee

Roberts

Conaway

et al. 1970

Lipids

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A study has been made to see if hyperplastic and biochemical responses similar to those which occur in temperature‐exposed rodents also occur in insectivores, protoprimates and primates. Representative insectivores included the shrewsSuncus murinus andCryptotis parva. The representative prottoprimate wasTupaia chinensis. The representative primate wasMacaca mulatta. Both shrews show a striking thermogenic response in the brown fat with respect to increased specific activity of α‐glycerophosphate oxidase and succinoxidase.Suncus also showed an increase in brown fat mass following cold exposure. In both shrews cold caused the brown fat to become darker in color.Cryptotis did not show a significant increase in brown fat mass, but this may be due to the fact that the cold exposure period was only four days. Thus the shrews appear to be rodent‐like with respect to effects of cold on brown fat. In the Tupaiads the ratio of brown fat to body weight is not nearly as high as in rodents nor is there a striking hyperplasia with cold exposure. Thus the brown fat would seem to be of less importance to the Tupaiads than to rodents and shrews and the Tupaiads appear to be intermediate in this respect between the insectivores and the true primates. AdultMacaca, in spite of eight months of cold exposure at about 4–6 C, showed no hyperplasia of the brown fat and no increase in oxidative enzyme levels. Thus in adult primates so far studied, the evidence indicates that brown fat does not play an important role in homeothermy as it does in rodents.

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Observations on the Social Behavior of Tree Shrews in Captivity

Cited by 44 publications

References 0 publications

The grasping behaviour, locomotion and substrate use of the tree shrews Tupaia minor and T. tana (Mammalia, Scandentia)

The grasping behaviour, locomotion and substrate use of the tree shrews Tupaia minor and T. tana (Mammalia, Scandentia)

Social system and independence of offspring in tree shrews

Comparative effects of temperature exposure on mass and oxidative enzyme activity of brown fat in insectivores, tupaiads and primates

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