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Table of Contents
Vol. 39, No. 3-4, 1982
Issue release date: 1982
Section title: Paper
Folia Primatol 1982;39:305–331
(DOI:10.1159/000156082)

Langur Monkey (Presbytis entellus) Development. The First 3 Months of Life

Dolhinow P. · Murphy G.
Department of Anthropology, University of California, Berkeley, Calif, USA

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Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: September 11, 2008
Issue release date: 1982

Number of Print Pages: 27
Number of Figures: 0
Number of Tables: 0

ISSN: 0015-5713 (Print)
eISSN: 1421-9980 (Online)

For additional information: http://www.karger.com/FPR

Abstract

Observation for the first 3 months of life of 19 Indian langur monkey infants (Presbytis entellus) living in well-established colony social groups revealed complex and related patterns of social development. This is a period of rapidly increasing infant motor ability and increasing infant-initiated independence. Infant transfer, a behavior initiated by others towards the infant and a characteristic of the species, occurs most frequently in weeks 1 and 2, then steadily declines to low frequency in weeks 11 and 12. Infants are not punished or rejected, and to the extent the mother allows, the infant leaves her. She leaves her infant infrequently. The infant widens its radius of activity and increases the kinds and frequency of active interactions it has with others in the group. Patterns of behavior appear to develop in tandem during key periods of early life. Week 1 is the time of greatest dependence with 100 % contact at first. During weeks 3 and 4, the infant efficiently expresses itself and can actively prevent transfers. Week 4 sees a constellation of major changes and a rising infant drive for independence. Play increases as do interactions with other immatures. Carrying decreases as the infant is able to follow. Some restraints are observed because of a new set of infant management problems presented to the mother. Throughout the first 3 months of life the mother is the focus of her infant’s attention and activities – she is crucial to its survival. The 3-month-old infant is an active strategist with many options of action and choices of behavior and social partners.

© 1982 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: September 11, 2008
Issue release date: 1982

Number of Print Pages: 27
Number of Figures: 0
Number of Tables: 0

ISSN: 0015-5713 (Print)
eISSN: 1421-9980 (Online)

For additional information: http://www.karger.com/FPR


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Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher or, in the case of photocopying, direct payment of a specified fee to the Copyright Clearance Center.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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