Demographic Structures of Gelada (Theropithecus gelada) in Guassa Community Protected Area, Ethiopia

Eshetu Moges; M. Balakrishnan

Demographic Structures of Gelada (Theropithecus gelada) in Guassa Community Protected Area, Ethiopia

Eshetu Moges * §

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M. Balakrishnan

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Addis Ababa University

Demographic Structures of Gelada (Theropithecus gelada) in Guassa Community Protected Area, Ethiopia

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Abstract

In geladas, sociality and population structure are unusual because they establish highly differentiated bonds with other group members. Such bonds are particularly pronounced among female geladas, with female philopatry and male dispersal. In the present study, gelada band size and population structures varied between wet and dry seasons. The mean number of females per harem varied from 4.5 to 7.1. In addition, the mean harem, or reproductive female size in all study bands is not statistically significant within season, or between seasons (P > 0.05). The sex ratio did not also show any significant differences between seasons. However, the adult sex ratio and the mean number of reproductive females within the units were statistically significant (t 10= -5.6, P < 0.05). Gelada population growth rate is relatively high (mean = 17.1 % per annum) in Guassa Community Protected Area, and it could be deduced by the differences in number of birth and death at a given period of time within the natural population. Ratio of females per male was relatively lower in the study bands of geladas in present study area, and it doesn't show a true relationship annual growth rate of gelada population. However, the number of births per female/year has brought a significant change on gelada population.

References

21 Cites in Article

Reference Format

J Altman (1974). Observational Study of Behavior: Sampling Methods.
S Altmann,J Altmann (1970). Baboon Ecology.
J Beehner,Birhanu Gebre,T Bergman,C Mccann (2008). Population estimate for geladas (Theropithecus gelada) living in and around the Simien Mountains National Park, Ethiopia.
R Dunbar (1980). Demographic and life history variables of a population of gelada baboons (Theropithecus gelada).
R Dunbar (1986). The social ecology of gelada baboons.
R Dunbar (1993). Social organization of the gelada.
N Jablonski (1993). Diderot, Political Writings, ed. John Hope Mason and Robert Wokler, Cambridge, Cambridge University Press, 1992, pp. xli + 225. - Malthus, An Essay on the Principle of Population, ed Donald Winch, Cambridge, Cambridge University Press, 1992, pp. xxxiii + 392. - Price, Political Writings, ed. D. O. Thomas, Cambridge, Cambridge University Press, 1991, pp. xxiv + 199..
R Dunbar,E Dunbar (1974). Ecological Relations and Niche Separation between Sympatric Terrestrial Primates in Ethiopia.
R Dunbar,M Sharman (1983). Female competition for access to males affects birth rate in baboons.
C Grueter,D Zinner (2004). Nested societies: convergent adaptations in snub-nosed monkeys and baboons?.
R Hill,P Lee (1998). Predation risk as an influence on group size in cercopithecoid primates: implications for social structure.
E Johnson,N Snyder-Mackler,J Beehner,T Bergman (2013). Kinship and Dominance Rank Influence the Strength of Social Bonds in Female Geladas (Theropithecus gelada).
M Kawai,H Ohsawa,U Mori,R Dunbar (1983). Social organization of gelada baboons: Social units and definitions.
Aliza Le Roux,Jacinta Beehner,Thore Bergman (2011). Female philopatry and dominance patterns in wild geladas.
U Mori (1979). Social structure of gelada baboon.
A Mori,T Iwamoto,U Mori,A Bekele (1999). Sociological and demographic characteristics of a recently found arsi gelada population in Ethiopia.
H Ohsawa,R Dunbar (1984). Variation in demographic structure and dynamics of gelada baboon populations.
T Zelealem,N Leader-Williams (2005). Indigenous common property resources management in the central highlands of Ethiopia.
T Zelealem,N Leader-Williams,T Coulson (2012). Consequences of human land use for an Afro-alpine ecological community in Ethiopia.
Gurja Zewdu Kifle,Afework Belay,Bekele (2013). ) and human-gelada conflict in Wonchit Valley, Ethiopia.
(1913). U.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Eshetu Moges, M. Balakrishnan. 2015. "Demographic Structures of Gelada (Theropithecus gelada) in Guassa Community Protected Area, Ethiopia". Global Journal of Science Frontier Research - C: Biological Science GJSFR-C Volume 15 (GJSFR Volume 15 Issue C1).

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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GJSFR-C Classification FOR Code: 069999

Submission ReceivedJanuary 22, 2015
Peer Review Double Blind
Handling Editor
Accepted February 12, 2015
Published February 23, 2015

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v1.2

Issue date

March 13, 2015

Language

English

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Article Matrices

Total Score: 116

Country: Ethiopia

Subject: Global Journal of Science Frontier Research

Authors: Eshetu Moges, M. Balakrishnan (PhD/Dr. count: 0)

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