摘要:

The presence of Papio cynocephalus, Cercopithecus mitis, Cercopithecus aethiops and Colobus angolensis in a small coastal forest is attributed to their differential habitat utilization. Data on diet, space-use patterns and polyspecific associations are given. Habitat partitioning is found to be resource-related and is accomplished through differential reliance on resources as well as different means of exploiting overlapping resources. The implications of the data for understanding the relationship between ecology and social structure are discussed.

ISSN:0015-5713    

DOI:10.1159/000155780

出版商:S. Karger AG    

年代:1977

数据来源: Karger

摘要:

During a 15-month behavioral study in Morocco and a 3-month survey in Morocco and Algeria, the present distribution of the Barbary macaque was determined. In Algeria, monkeys are found in seven constricted and disjunct localities in the Grande and Petite Kabylie mountain ranges. These localities are severely restricted in space and are located in remote or inaccessible areas which support only small populations. Their habitats include mixed cedar and holm oak forests, humid Portuguese and cork oak mixes and gorges dominated by scrub vegetation. In only two regions (Guerrouch and Agfadou) can populations of reasonable size be found; even there they do not approach the abundance found in the Central Middle Atlas zone of Morocco. Distribution was more extensive earlier in this century and some areas have become unoccupied within the past 15 years. Today, their absolute numbers and population densities are low in all but two locations. Algeria contains approximately 23% (5,500 maximum) of the total number of surviving Barbary macaques in North Africa. About 77% of the total number of Barbary macaques occur in Morocco. Moroccan habitats include high cedar forests, cedar/holm-oak mixtures and pure holm oak forests. Macaque distribution in the High Atlas is restricted to the Ourika valley where only a small relict population survives. There are between five and eight small, disjunct forest pockets in the Rif which support small groups of monkeys. In the Middle Atlas, monkeys are found in high numbers and in relatively wide stretches of distribution, although there are constricted areas of low densities in this region also. 65% (14,000 maximum) of the animals and their highest densities occur in the high mixed cedar forests of the Central zone, and mixed cedar forest appears to be the preferred habitat for the species. With the exception of the Central zone, their remaining distribution is typically disjunct and constricted, and population densities are low. As in Algeria, distribution in Morocco was wider earlier this century, and several areas have recently become unoccupied.

ISSN:0015-5713    

DOI:10.1159/000155781

出版商:S. Karger AG    

年代:1977

数据来源: Karger

摘要:

The recent rise of a high-ranking adult male chimpanzee to the alpha male position of the Gombe National Park’s Kasakela chimpanzee community is reported. The male Figan is the fourth individual to assume this status in the wild chimpanzees’ social hierarchy during Good all’s 16 year study in Tanzania. The paper describes the overthrow of the previous top-ranking male, and the manner in which Figan has maintained his new position after the take-over. Emphasis is placed upon his relationship with his elder male sibling, Faben, and the second highest-ranking male in the community, E

ISSN:0015-5713    

DOI:10.1159/000155784

出版商:S. Karger AG    

年代:1977

数据来源: Karger

摘要:

In the genus Macaca, represented by seven species, neonatal weight scales at a power of maternal weight of a = 0.49. This value is lower than those for subordinal and ordinal scaling of neonatal weight in primates (a = 0.63–0.78), but it is higher than the value for intrageneric scaling of brain weight in Macaca (a = 0.18). A causal interpretation is attempted for differing values of a at different taxonomic levels and between different organ system

ISSN:0015-5713    

DOI:10.1159/000155782

出版商:S. Karger AG    

年代:1977

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000155783

出版商:S. Karger AG    

年代:1977

数据来源: Karger