Population Status, Distribution, and Threats of <i>Colobus guereza gallarum</i> in Bale Mountains National Park, Southeastern Ethiopia

Israel Petros; Sefi Mekonen; Hussein Gena; Yared Mesfin

doi:doi:10.11648/j.ijnrem.20180303.12

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Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia

Israel Petros, Sefi Mekonen, Hussein Gena, Yared Mesfin

Published in International Journal of Natural Resource Ecology and Management (Volume 3, Issue 3)

Received: 28 June 2018 Accepted: 13 July 2018 Published: 8 August 2018

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Abstract

Colobus guereza gallarum is the subspecies of Colobus monkey (Colobus guereza) restricted to the Ethiopian highlands to the east of the Rift Valley. This study was carried out from February to June 2016 to provide data on Population status, distribution, and threats of C. g. gallarum in Bale Mountains National Park. Line transects with 5 km distance were made in all survey areas to estimate the whole population in the area. Field visits and questionnaire distribution were made to assess community perception and threats to the species. The major population of C. g. gallarum was observed in Rira. A total of 116 and 113 individuals were observed in the wet and dry seasons, respectively. There was no significant difference between wet and dry seasons (F= 0.072, df=1, p=0.795) of the population size of C. g. gallarum. Out of 229 individuals of guereza counted in both dry and wet seasons, 44 were adult males, 58 adult females, 42 sub-adult males, 43 sub-adult females and the remaining 42 were young individuals. However, as t-test indicated, here was no significant difference between wet and dry seasons in a number of in this sex and age categories (P>0.70). The male to female ratio was 1.00:1.1, while, the age ratio of young to all other individuals was 1.00:4.45. Here also, the ratio of young to an adult female was 1.00:1.40 and 1.00:1.36 during dry and wet seasons, respectively. The response of communities indicated the presence of positive perception towards the species due to its main importance for tourism and cultural aspect of the communities. Moreover, habitat destruction due to logging, farmland expansion and settlement were main observed threats to species in the area.

Published in	International Journal of Natural Resource Ecology and Management (Volume 3, Issue 3)
DOI	10.11648/j.ijnrem.20180303.12
Page(s)	39-45
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Colobus guereza gallarum, Distribution, Population Structure, Threats

References

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APA Style

Israel Petros, Sefi Mekonen, Hussein Gena, Yared Mesfin. (2018). Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia. International Journal of Natural Resource Ecology and Management, 3(3), 39-45. https://doi.org/10.11648/j.ijnrem.20180303.12

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ACS Style

Israel Petros; Sefi Mekonen; Hussein Gena; Yared Mesfin. Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia. Int. J. Nat. Resour. Ecol. Manag. 2018, 3(3), 39-45. doi: 10.11648/j.ijnrem.20180303.12

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AMA Style

Israel Petros, Sefi Mekonen, Hussein Gena, Yared Mesfin. Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia. Int J Nat Resour Ecol Manag. 2018;3(3):39-45. doi: 10.11648/j.ijnrem.20180303.12

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@article{10.11648/j.ijnrem.20180303.12,
  author = {Israel Petros and Sefi Mekonen and Hussein Gena and Yared Mesfin},
  title = {Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia},
  journal = {International Journal of Natural Resource Ecology and Management},
  volume = {3},
  number = {3},
  pages = {39-45},
  doi = {10.11648/j.ijnrem.20180303.12},
  url = {https://doi.org/10.11648/j.ijnrem.20180303.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijnrem.20180303.12},
  abstract = {Colobus guereza gallarum is the subspecies of Colobus monkey (Colobus guereza) restricted to the Ethiopian highlands to the east of the Rift Valley. This study was carried out from February to June 2016 to provide data on Population status, distribution, and threats of C. g. gallarum in Bale Mountains National Park. Line transects with 5 km distance were made in all survey areas to estimate the whole population in the area. Field visits and questionnaire distribution were made to assess community perception and threats to the species. The major population of C. g. gallarum was observed in Rira. A total of 116 and 113 individuals were observed in the wet and dry seasons, respectively. There was no significant difference between wet and dry seasons (F= 0.072, df=1, p=0.795) of the population size of C. g. gallarum. Out of 229 individuals of guereza counted in both dry and wet seasons, 44 were adult males, 58 adult females, 42 sub-adult males, 43 sub-adult females and the remaining 42 were young individuals. However, as t-test indicated, here was no significant difference between wet and dry seasons in a number of in this sex and age categories (P>0.70). The male to female ratio was 1.00:1.1, while, the age ratio of young to all other individuals was 1.00:4.45. Here also, the ratio of young to an adult female was 1.00:1.40 and 1.00:1.36 during dry and wet seasons, respectively. The response of communities indicated the presence of positive perception towards the species due to its main importance for tourism and cultural aspect of the communities. Moreover, habitat destruction due to logging, farmland expansion and settlement were main observed threats to species in the area.},
 year = {2018}
}

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TY - JOUR
T1 - Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia
AU - Israel Petros
AU - Sefi Mekonen
AU - Hussein Gena
AU - Yared Mesfin
Y1 - 2018/08/08
PY - 2018
N1 - https://doi.org/10.11648/j.ijnrem.20180303.12
DO - 10.11648/j.ijnrem.20180303.12
T2 - International Journal of Natural Resource Ecology and Management
JF - International Journal of Natural Resource Ecology and Management
JO - International Journal of Natural Resource Ecology and Management
SP - 39
EP - 45
PB - Science Publishing Group
SN - 2575-3061
UR - https://doi.org/10.11648/j.ijnrem.20180303.12
AB - Colobus guereza gallarum is the subspecies of Colobus monkey (Colobus guereza) restricted to the Ethiopian highlands to the east of the Rift Valley. This study was carried out from February to June 2016 to provide data on Population status, distribution, and threats of C. g. gallarum in Bale Mountains National Park. Line transects with 5 km distance were made in all survey areas to estimate the whole population in the area. Field visits and questionnaire distribution were made to assess community perception and threats to the species. The major population of C. g. gallarum was observed in Rira. A total of 116 and 113 individuals were observed in the wet and dry seasons, respectively. There was no significant difference between wet and dry seasons (F= 0.072, df=1, p=0.795) of the population size of C. g. gallarum. Out of 229 individuals of guereza counted in both dry and wet seasons, 44 were adult males, 58 adult females, 42 sub-adult males, 43 sub-adult females and the remaining 42 were young individuals. However, as t-test indicated, here was no significant difference between wet and dry seasons in a number of in this sex and age categories (P>0.70). The male to female ratio was 1.00:1.1, while, the age ratio of young to all other individuals was 1.00:4.45. Here also, the ratio of young to an adult female was 1.00:1.40 and 1.00:1.36 during dry and wet seasons, respectively. The response of communities indicated the presence of positive perception towards the species due to its main importance for tourism and cultural aspect of the communities. Moreover, habitat destruction due to logging, farmland expansion and settlement were main observed threats to species in the area.
VL - 3
IS - 3
ER -

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Author Information

Israel Petros

Department of Biology, College of Natural Sciences, Dilla University, Dilla, Ethiopia
Sefi Mekonen

Department of Ecotourism and Wildlife Management, College of Agriculture and Natural Resources, Wolkite University, Wolkite, Ethiopia
Hussein Gena

Department of Ecotourism and Biodiversity Conservation, College of Agriculture and Natural Resources, Madda Walabu University, Robe, Ethiopia
Yared Mesfin

Department of Natural Resource Management, College of Agriculture and Environmental Sciences, Arsi University, Assela, Ethiopia

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APA Style

Israel Petros, Sefi Mekonen, Hussein Gena, Yared Mesfin. (2018). Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia. International Journal of Natural Resource Ecology and Management, 3(3), 39-45. https://doi.org/10.11648/j.ijnrem.20180303.12

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ACS Style

Israel Petros; Sefi Mekonen; Hussein Gena; Yared Mesfin. Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia. Int. J. Nat. Resour. Ecol. Manag. 2018, 3(3), 39-45. doi: 10.11648/j.ijnrem.20180303.12

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AMA Style

Israel Petros, Sefi Mekonen, Hussein Gena, Yared Mesfin. Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia. Int J Nat Resour Ecol Manag. 2018;3(3):39-45. doi: 10.11648/j.ijnrem.20180303.12

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@article{10.11648/j.ijnrem.20180303.12,
  author = {Israel Petros and Sefi Mekonen and Hussein Gena and Yared Mesfin},
  title = {Population Status, Distribution, and Threats of Colobus guereza gallarum in Bale Mountains National Park, Southeastern Ethiopia},
  journal = {International Journal of Natural Resource Ecology and Management},
  volume = {3},
  number = {3},
  pages = {39-45},
  doi = {10.11648/j.ijnrem.20180303.12},
  url = {https://doi.org/10.11648/j.ijnrem.20180303.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijnrem.20180303.12},
  abstract = {Colobus guereza gallarum is the subspecies of Colobus monkey (Colobus guereza) restricted to the Ethiopian highlands to the east of the Rift Valley. This study was carried out from February to June 2016 to provide data on Population status, distribution, and threats of C. g. gallarum in Bale Mountains National Park. Line transects with 5 km distance were made in all survey areas to estimate the whole population in the area. Field visits and questionnaire distribution were made to assess community perception and threats to the species. The major population of C. g. gallarum was observed in Rira. A total of 116 and 113 individuals were observed in the wet and dry seasons, respectively. There was no significant difference between wet and dry seasons (F= 0.072, df=1, p=0.795) of the population size of C. g. gallarum. Out of 229 individuals of guereza counted in both dry and wet seasons, 44 were adult males, 58 adult females, 42 sub-adult males, 43 sub-adult females and the remaining 42 were young individuals. However, as t-test indicated, here was no significant difference between wet and dry seasons in a number of in this sex and age categories (P>0.70). The male to female ratio was 1.00:1.1, while, the age ratio of young to all other individuals was 1.00:4.45. Here also, the ratio of young to an adult female was 1.00:1.40 and 1.00:1.36 during dry and wet seasons, respectively. The response of communities indicated the presence of positive perception towards the species due to its main importance for tourism and cultural aspect of the communities. Moreover, habitat destruction due to logging, farmland expansion and settlement were main observed threats to species in the area.},
 year = {2018}
}

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