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Critical and Demographic Effective Population Size of African Buffalo (Syncerus caffer) in Borgu Sector of Kainji Lake National Park, Nigeria

Keywords: stochasticity , buffalo , population , Breeding , relative abundance

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Effective population size of African Buffalo (Syncerus caffer) was estimated using Franklin and Frankham model. Buffalo relative abundance was calculated using a 4x4 km transect constructed in each of the identified six vegetation communities in the Park, which were traversed once a month for a period of 24 months. The results revealed that the relative abundance of Buffalo in the Park was 0.372 ±0.03 groups km-2 consisting of 51 ±5.827 groups representing 242 ±16.309 individuals which consist of 30 adult males and 70 adult females representing 12.40 and 28.93%, respectively of the total Buffalo population in the Park which was considered to be the effective breeding population size. The composition of the population structure was significantly different (p< 0.05). The effective population size of Buffalo in the Park was estimated to be 581.34 ±4.91 which was above the recommended value of 100 which shows that the Buffalo population in the Park was not threatened by demographic stochasticity factors but rather by illegal human activities in the Park. Measures to improve conservation and management of the existing Buffalo population in the Park are also discussed.


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