A Preliminary Survey on Diversity and Conservation Status of Medium and Large‐Sized Mammals in Weyngus Forest, West Gojjam Zone, Amhara Region, Ethiopia
Mammalian surveys are vital tools for effective managements and conservation strategies. A survey was conducted to investigate the species composition, relative abundance and to determine their major threats in Weyngus Forest, West Gojjam Zone, Amhara Region, Ethiopia. The data were collected from April 2020 to June 2020. Transect method and subjective interviews were used to collect data for the study. A total of 11 species of medium and large sized mammals belonging to six orders and eight families were recorded by direct and indirect evidences. Porcupine (Hystrix cristata), Vervet monkey (Chlorocebus aethiops), and Coloubus monkey (Colobus guereza) were among the medium-sized mammals while, Spotted hyena (Crocuta crocuta), Bushbuck (Tragelaphus scriptus) and Common duiker (Sylvicapra grimmia) were among the large-sized mammals recorded in the study area. Vervet monkey has been the most frequently observed species, whereas spotted hyena was observed less often. Simpson’s Similarity Index (SI) showed a significant overlap of mammalian species composition between scrubland and natural forest (SI = 0.62). Illegal logging of trees for fuel wood, agricultural land expansion, illegal hunting and land degradation were the main threats of mammals in the study area. Community participation and awareness creation are highly recommended to limit the impact of anthropogenic activities threatening wildlife.
References
[1]
Jenkinsa, C.N., Pimmb, S.L. and Joppac, L.N. (2013) Global Patterns of Terrestrial Vertebrate Diversity and Conservation. Proceedings of the National Academy of Sciences of the United States of America, 110, E2602-E2610. https://doi.org/10.1073/pnas.1302251110
[2]
Ceballos, G. and Ehrlich, P.R. (2006) Global Mammal Distributions, Biodiversity Hotspots, and Conservation. Proceeding of the National Academy of Science, USA, 103, 19374-19379. https://doi.org/10.1073/pnas.0609334103
[3]
Geleta, M. and Bekele, A. (2016) Survey of Medium and Large-Sized Mammals in Wacha Protected Forest, Western Ethiopia. Scholarly Journal of Agricultural Science, 6, 71-79.
[4]
Wilson, D.E. and Reeder, D.M. (2005) Mammal Species of the World: A Taxonomic and Geographic Reference. 3rd Edition, Johns Hopkins University Press, Baltimore, 2142.
[5]
Tefera, M. (2011) Wildlife in Ethiopia: Endemic Large Mammals. World Journal of Zoology, 6, 108-116.
[6]
Smith, M.L., Noonan, B.P. and Colston, T.J. (2017) The Role of Climatic and Geological Events in Generating Diversity in Ethiopian Grass Frogs (Genus Ptychadena). Royal Society Open Science, 4, 8. https://doi.org/10.1098/rsos.170021
[7]
Lavrenchenko, A.L. and Bekele, A. (2017) Diversity and Conservation of Ethiopian Mammals: What Have We Learned in 30 Years? Ethiopian Journal of Biological Science, 16, 1-20.
[8]
Boesch, L., Mundry, R., Kühl, S.H. and Berger, R. (2017) Wild Mammals as Economic Goods and Implications for Their Conservation. Ecology and Society, 22, 36. https://doi.org/10.5751/ES-09516-220436
[9]
Vaughan, A.T., Ryan, M.J. and Czaplewaki, N. (2000) Mammalogy. 4th Edition, Saunders College Publishing, New York.
[10]
Cardillo, M., Mace, G.M., Jones, K.E., Bielby, J., Bininda-Emonds, O.R.P., Sechrest, W., Orme, C.D.L. and Purvis, A. (2005) Multiple Causes of High Extinction Risk in Large Mammal Species. Science, 309, 1239-1241. https://doi.org/10.1126/science.1116030
[11]
IUCN (1996) 1996 IUCN Red List of Threatened Animals. IUCN, Gland.
[12]
Keeping, D. and Pelletier, R. (2014) Animal Density and Track Counts: Understanding the Nature of Observations Based on Animal Movements, PLoS ONE, 9, e96598. https://doi.org/10.1371/journal.pone.0096598
[13]
Legese, K., Bekele, A. and Kiros, S. (2019) A Survey of Large and Medium-Sized Mammals in Wabe Forest Fragments, Gurage Zone, Ethiopia. International Journal of Avian and Wildlife Biology, 4, 32-38. https://doi.org/10.15406/ijawb.2019.04.00149
[14]
Liyew, B., Tamrat, B. and Sebsebe, D. (2017) Woody Species Composition and Structure of Amoro Forest in West Gojjam Zone, North Western Ethiopia. Journal of Ecology and the Natural Environment, 10, 53-64. https://doi.org/10.5897/JENE2018.0688
[15]
Bekele, T., Birnie, A. and Tenqnas, B. (1993) Useful Trees and Shrubs for Ethiopia: Identification, Propagation and Management for Agricultural and Pastoral Communities, Regional Soil Conservation Unit/SIDA. Swedish International Development Authority (SIDA).
[16]
Varman, K.S. and Sukumar, R. (1995) The Line Transect Method for Estimating Densities of Large Mammals in a Tropical Deciduous Forest: An Evaluation of Models and Field Experiments. Journal of Bioscience, 20, 273-287. https://doi.org/10.1007/BF02703274
[17]
Larsen, T.H. (2016) Core Standardized Methods for Rapid Biological Field Assessment. Conservation International, Arlington.
[18]
Tilahun, Z. and Merewa, Z. (2020) Large Mammal Diversity and Endemism at Geremba Mountain Fragment, Southern Ethiopia. International Journal of Ecology, 2020, Article ID: 3840594. https://doi.org/10.1155/2020/3840594
[19]
Kingdon, J. (1997) The Kingdon Field Guide to African Mammals. Academic Press, London.
[20]
Sutherland, J.W. (2006) Ecological Census Techniques. 2nd Edition, University of East Anglia, Norwich. https://doi.org/10.1017/CBO9780511790508
[21]
Shannon, G.E. and Weaver, W. (1949) The Mathematical Theory of Communication. University of Illinois Press, Chicago.
[22]
Dereje, N., Tsegaye, G. and Tadese, H. (2015) The Diversity, Distribution and Relative Abundance of Medium and Large-Sized Mammals in Baroye Controlled Hunting Area, Illubabor Zone, Southwest Ethiopia. International Journal of Molecular Evolution and Biodiversity, 5, 1-9.
[23]
Qufa, C.A. and Bekele, A. (2019) A Preliminary Survey of Medium and Large-Sized Mammals from Lebu Natural Protected Forest, Southwest Showa, Ethiopia. Ecology and Evolution, 9, 12322-12331. https://doi.org/10.1002/ece3.5733
[24]
Link, A., Luna, A. and Alfonso, F. (2010) Initial Effects of Fragmentation on the Density of Three Neotropical Primate Species in Two Lowland Forests of Colombia. Endangered Species Research, 13, 41-50. https://doi.org/10.3354/esr00312
[25]
Alves, B.G., Junior, M.O. and Brites, V.C. (2014) Medium and Large-Sized Mammals of a Fragment of Cerrado in the Triangulo Mineiro Region, Southeastern Brazil. Bioscience Journal of Uberlandia, 30, 863-873.
[26]
Gonfa, R., Gadisa, T. and Habtamu, T. (2015) The Diversity, Abundance and Habitat Associations of Medium and Large-Sized Mammals in Dati Wolel National Park, Western Ethiopia. International Journal Biodiversity Conservation, 7, 112-118. https://doi.org/10.5897/IJBC2014.0808
[27]
Belete, T. and Melese, M. (2016). Assessment of Large Mammal’s Potential in Tululujia Wildlife Reserve, Southwestern Ethiopia. International Journal of Agricultural and Life Sciences, 2, 80-86.
[28]
Atnafu, G. and Yihune, M. (2018) Species Composition and Relative Abundance of Medium and Large Mammals in Mengaza Communal Forest, East Gojjam, Ethiopia. Journal of Ecology and the Natural Environment, 10, 34-40. https://doi.org/10.5897/JENE2017.0667
[29]
Bobo, S., Kamgaing, L. and Ntumwel, C. (2014) Species Richness, Spatial Distributions, and Densities of Large- and Medium-Sized Mammals in the Northern Periphery of Boumba bek National Park, Southeastern Cameroon. African Study Monographs, 49, 91-114.
[30]
Ayechew, B. and Tolcha, A. (2020) Assessment of Human-Wildlife Conflict in and around Weyngus Forest, Dega Damot Woreda, West Gojjam Zone, Amhara Region, Ethiopia. International Journal of Scientific Engineering and Science, 4, 1-10.
[31]
Espinosa, C.C., Galiano, D., Kubiak, B.B. and Marinho, J.R. (2016) Medium- and Large-Sized Mammals in a Steppic Savanna Area of the Brazilian Pampa: Survey and Conservation Issues of a Poorly Known Fauna. Brazilian Journal of Biology, 76, 73-79. https://doi.org/10.1590/1519-6984.12714
[32]
Worku, Z. and Girma, Z. (2020) Large Mammal Diversity and Endemism at Geremba Mountain Fragment, Southern Ethiopia. https://doi.org/10.1155/2020/3840594
[33]
Wale, M., Kassie, A., Mulualem, G., Tesfahunegny, W. and Assefa, A. (2017) Wildlife Threats and Their Relative Severity of Eastern Ethiopia Protected Areas. Ecology and Evolutionary Biology, 2, 59-67. https://doi.org/10.11648/j.eeb.20170204.12