3 Records out of 22207 Records

Aspects of the ecological flexibility of the Tana mangabey (Cercocebus galeritus) in its fragmented habitat, Tana River, Kenya.

Author: Wieczkowski, Julie Ann

Awarding University: University of Georgia, USA

Level : PhD

Year: 2003

Holding Libraries: University Microfilms International ;

Subject Terms: Ecology/Wildlife conservation/Tana mangabey USE Cercocebus galeritus/Cercocebus galeritus/Tana River National Primate Reserve, Kenya/Monkeys and apes/ ;

Abstract:

This dissertation investigated the ecological flexibility of the Tana mangabey (Cercocebus galeritus) and its use of a fragmented habitat, within the context of its ecological flexibility. The Tana mangabey is one of the world's most endangered primates, endemic to a 60-kilometer stretch of the lower Tana River in Kenya. The strength of this study is in its examination of both the mangabey's diverse habitat and its behavior. The research had two major foci. One examined the ecological correlates of mangabey abundance, with the goal of recommending management strategies. The other extended the temporal investigation of the mangabeys' ecological flexibility by studying one mangabey group that was also studied in 1974 and in 1988-89. Thirty-one study forests were selected throughout the mangabeys' distribution. One hundred and seven vegetation belt transects were sampled and 307 mangabey surveys were conducted in these study forests. From August 2000 until July 2001, monthly 3-day samples were conducted on the mangabey group to collect behavioral, dietary, and ranging data. In addition, phenology was monitored monthly in 226 trees in 11 species across the three forests visited by that group. The Tana mangabey was found to be very general in its habitat needs; the mean number of mangabey groups per forest was positively associated with forest size, density of trees ≥10 cm diameter at breast height, and basal area of the top 15 food species (in forests within the Tana River Primate National Reserve). Behavioral changes exhibited by the study group can be linked to the group's increased size and diet differences. Although ecological explanations for dietary changes are limited, it was found that the mangabey does not consume ripe fruit in relation to availability. Instead, they concentrate on ripe fruit, ripe seed, unripe fruit, and/or unripe seed on a species-specific basis. Finally, the most important reason for the group's expansion of its home range was the increased group size. Overall, the research supports the conclusion that the general habitat needs and ecological flexibility of the mangabey aid their survival in their highly diverse and fragmented habitat.

The development assistance loans of the World Bank : a study of the allocation patterns and their implications in the Horn of Africa

Author: Elhassan, Bashir Elsheikh

Awarding University: University of Georgia, USA

Level : PhD

Year: 1990

Holding Libraries: University Microfilms International ;

Subject Terms: World Bank ; Development banks ; Economic policy ; Economic development ;

Abstract:

The purpose of this study was to examine World Bank loan allocation patterns in five countries of the horn of Africa; Ethiopia, Kenya, Somalia, Sudan, and Tanzania; during 1960-1987. This study has argued that World Bank loan allocations in the five countries of the horn of Africa do not follow patterns anticipated by the literature. Emphasis remain on agriculture as well as traditional infrastructure lending such as transportation and energy. These sectors represent the backbone for developing potential resources in these countries. This study challenges the generally accepted assumption that shifts in World Bank allocations imply a change in World Bank lending policies. While this study confirms the presence of these shifts, it argues that the World Bank has not changed its lending patterns as anticipated by the development theory. This argument is based on two main viewpoints. First, shifts in emphasis toward agriculture can be explained in a framework of economic growth as the main objectives of these programs are defined in terms of productivity and foreign currency earning capabilities. Secondly, allocations for socially oriented sectors represent a marginal share of the bank's allocations. Empirical examination of World Bank loans shows that the bank promotes development programs that increase foreign currency earnings and help pay back the debt. This study, therefore, argues that there is not sufficient evidence to explain the World Bank support for small farm development as a shift toward socially oriented programs. Since development of agriculture is dependent on development of the weak infrastructure of these countries, the World Bank has put emphasis on transportation and energy in its lending operations in the countries of the horn of Africa. This study contends that World Bank loan allocations are tailored on individual country basis and do not follow a specific pattern that can predict their allocations as suggested by the literature. Findings of this research can not easily be generalized beyond the countries of the horn of Africa but they provide strong preliminary evidence that propositions about the relationships between World Bank lending policies and national economic development may need to be modified or reconsidered.

Chemotherapy of visceral leishmaniasis [ Leishmania donovani ] in the squirrel monkey [ Saimiri sciureus].

Author: Madindou, Tom Joseph

Awarding University: University of Georgia, USA

Level : MSc

Year: 1982

Holding Libraries: Egerton University Library ;

Subject Terms: Leishmaniasis ; Chemotherapy ; Leishmania donovani ; Squirrel monkey USE Saimiri sciureus ; Monkeys and apes ;

Abstract:

ABSTRACT NOT AVAILABLE