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ECOLOGY AND NESTING PATTERNS OF CHIMPANZEES (PAN TROGLODYTES) IN ISSA, UGALLA, WESTERN TANZANIA.
by
Raquel Adriana Hernandez-Aguilar
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(ANTHROPOLOGY)
December 2006
Copyright 2006 Raquel Adriana Hernandez-Aguilar
Object Description
| Title | Ecology and nesting patterns of chimpanzees (Pan troglodytes) in Issa, Ugalla, western Tanzania |
| Author | Hernandez-Aguilar, Raquel Adriana |
| Author email | adrianahernandez@mac.com |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Anthropology |
| School | College of Letters, Arts and Sciences |
| Date defended/completed | 2006-09-07 |
| Date submitted | 2006 |
| Restricted until | Unrestricted |
| Date published | 2006-12-01 |
| Advisor (committee chair) | Stanford, Craig B. |
| Advisor (committee member) |
Moore, James J. Yamashita, Nayuta Moore, G. Alexander Boehm, Chris |
| Abstract | This thesis reports on a twenty month study of chimpanzees in the Ugalla region, the first long term study of this population. Very little research has been conducted on chimpanzees living in savannas and Ugalla is one of the driest habitats were chimpanzees are found.; Because of the large size of the region (>3,300 km2) I selected an area of 48km2 for the study. The chimpanzees were neither habituated nor provisioned. Thus, the methods I used were ecological and ethno-archaeological. However, behavioral data were collected ad libitum when the apes were observed.; I describe the ecology of the study area with emphasis on the climate and vegetation. I conducted a phenological study and found that the high seasonality of the habitat affected the availability of chimpanzee plant foods. For example, fruit was available in the forest during the rainy season but not during the dry season. In contrast, fruit was available in woodland throughout the year, although estimated relative abundance was higher during the rainy season than during the dry season within this vegetation type. It was found that seventy five percent of the number of species confirmed to be eaten by the chimpanzees came from woodland.; I obtained detailed quantified data on the physical characteristics of nests and nesting trees. I compared physical characteristics of trees selected for nesting versus other suitable trees that were not used for nesting to infer patterns of selectivity by the chimpanzees. Statistically significant differences of the physical characteristics investigated were found between trees used and not used for nesting within a nesting site, and between trees of nesting sites and trees of nearby places not used for nesting. Data indicate that chimpanzees extensively used the woodland for feeding and for nesting. Comparisons are made with those savanna study sites for which data are available. Finally, implications for early hominin behavioral ecology are given. |
| Keyword | chimpanzees; Tanzania; savanna; ecology; phenology; nesting |
| Geographic subject | reserves: Ugalla |
| Geographic subject (country) | Tanzania |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Type | texts |
| Legacy record ID | usctheses-m206 |
| Rights | Hernandez-Aguilar, Raquel Adriana |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-HernandezAguilar-20061201 |
| Archival file | uscthesesreloadpub_Volume48/etd-HernandezAguilar-20061201.pdf |
Description
| Title | Page 1 |
| Full text | ECOLOGY AND NESTING PATTERNS OF CHIMPANZEES (PAN TROGLODYTES) IN ISSA, UGALLA, WESTERN TANZANIA. by Raquel Adriana Hernandez-Aguilar A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (ANTHROPOLOGY) December 2006 Copyright 2006 Raquel Adriana Hernandez-Aguilar |
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