摘要:

In the literature there are no references to the question whether the unique recent primate with gnawing-teeth, Daubentonia madagascariensis, has facial muscles which can cause lip movements analogous to those of the rodents. This is the reason why the facial muscles are examined again and compared with new results on other lemuriform primates (Lemur fulvus and Lepilemur ruficaudatus). Moreover, the facial muscles of the orbital and the auricular area are regarded, too, and their functions are discussed.

ISSN:0015-5713    

DOI:10.1159/000155620

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

It is suggested that two specimens assigned to Ramapithecus (G.S.I. D. 199 and B.M.N.H. 15423) should be transferred back to two Dryopithecus species (respectively D. sivalensis and D. laietanus). In most respects, these specimens display dryopithecine-like features. The fallacy of comparing individuals of unequal age has improperly influenced previous taxonomic assessments of these two specimens. It is also shown that some of the features used to argue hominid status for Ramapithecus are, in fact, commonly shared (alone or together) by extant and Miocene pongids. The lack of taxonomic significance for these features is discussed.

ISSN:0015-5713    

DOI:10.1159/000155621

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

The genus Anchomomys is redefined and it now contains the type species A. gaillardi and A. pygmaeus. ‘Anchomomys’ latidens, described by Teilhard de Chardin, is not Anchomomys, and probably not a primate but an erinaceoid insectivoran. A new genus, Hürzeleris, is based on a species previously allocated to Anchomomys, ‘A’. quercyi Stehlin, 1916. The type species of another new genus Microadapis is ‘Adapis’ sciureus S

ISSN:0015-5713    

DOI:10.1159/000155622

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

An intensive study during 3 months shows that polyspecific associations of Cercopithecines sometimes may be very stable, conducing to a total common exploitation of the environment. In spite of some differences in vertical stratification and diet of associated species, it appears that the association is based on a large overlapping of ecological needs. Association remains thanks to obvious behavioral affinity between the species and to supraspecific social organization where one species is ‘leader’. Life in association allows a better quantitative and qualitative exploitation of the milieu.

ISSN:0015-5713    

DOI:10.1159/000155623

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

An intensive study during 3 months shows that polyspecific associations of Cercopithecines sometimes may be very stable, conducing to a total common exploitation of the environment. In spite of some differences in vertical stratification and diet of associated species, it appears that the association is based on a large overlapping of ecological needs. Association remains thanks to obvious behavioral affinity between the species and to supraspecific social organization where one species is ‘leader’. Life in association allows a better quantitative and qualitative exploitation of the milieu.

ISSN:0015-5713    

DOI:10.1159/000317610

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

An intensive study during 3 months shows that polyspecific associations of Cercopithecines sometimes may be very stable, conducing to a total common exploitation of the environment. In spite of some differences in vertical stratification and diet of associated species, it appears that the association is based on a large overlapping of ecological needs. Association remains thanks to obvious behavioral affinity between the species and to supraspecific social organization where one species is ‘leader’. Life in association allows a better quantitative and qualitative exploitation of the milieu.

ISSN:0015-5713    

DOI:10.1159/000317611

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

An intensive study during 3 months shows that polyspecific associations of Cercopithecines sometimes may be very stable, conducing to a total common exploitation of the environment. In spite of some differences in vertical stratification and diet of associated species, it appears that the association is based on a large overlapping of ecological needs. Association remains thanks to obvious behavioral affinity between the species and to supraspecific social organization where one species is ‘leader’. Life in association allows a better quantitative and qualitative exploitation of the milieu.

ISSN:0015-5713    

DOI:10.1159/000317612

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

This paper presents information collected during an 18-month study of four groups of Propithecus verreauxi living in the north-west and south of Madagascar. Various aspects of the social organization and ecology of this species are discussed, including group size and composition, patterns of group dispersion, ranging and home-range utilization, diet and feeding behaviour, daily activity patterns and intra-individual relationships within each group. Particular attention is given to the nature and extent of regional, seasonal and local variation in these parameters, and to the possible underlying environmental correlates.

ISSN:0015-5713    

DOI:10.1159/000155624

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

Harassment of copulation by members of a group of Macaca arctoides is described. Data on 88 mounts is analyzed and an age-sex breakdown of the harassing monkeys is provided. A possible function of the harassment pattern in this species is discussed.

ISSN:0015-5713    

DOI:10.1159/000155625

出版商:S. Karger AG    

年代:1974

数据来源: Karger

摘要:

Infants react to maternal rejection or other startling stimuli by a hind leg kick which, when fully developed, takes the infant off the mother into a very active elusive equilibratory phase. The subsequent behaviour of both mother and infant is interpreted as an adjustment to the consequences of the infant’s initial hind legkic

ISSN:0015-5713    

DOI:10.1159/000155626

出版商:S. Karger AG    

年代:1974

数据来源: Karger