Population Size and Human-Grivet Monkeys (Chlorocebus aethiops) Conflict in Zegie Peninsula, Bahir Dar, Ethiopia

Abstract Background: Grivet monkey (Chlorocebus aethiops) is an Old World monkey with long white tufts of hair along the sides of the face. They inhabit a wide range of habitat types. A study on population size and human-grivet monkey conflict in Zegie Peninsula was carried out from August 2019 to March 2020; the study comprised both the wet and dry seasons. The line transect method was used to collect data on the population size of grivet monkeys. Questionnaire and focus group discussions were used to study the human-grivet monkey conflict and its conservation status. Results: The estimated population of grivets in the study area was 4808. Population structure of grivets indicated that there were 634 adult males, 1236 adult females, 1733 juveniles, and 1205 infants. Grivet population estimate between the wet and dry seasons did not show significant differences (ᵡ2 = 0.938, df = 1, p > 0.05). But there was a significant difference in the population estimate of grivets among the different habitats (ᵡ2 = 238.295, df = 3, p < 0.05).Conclusion: There was a human-grivet monkey conflict in the Peninsula and grivets were damaged crops, not only crops but also predating poultry, steal an egg, and human food. Consequently, grivets were killed in response to the damage they cause to crops. Grivet’s habitat in the Peninsula is highly disturbed because the local people cut trees for sale to support their livelihood. Awareness creation of the residents about wildlife and their habitat is necessary, and people should understand the impact of deforestation, illegal hunting, and the role of grivets in the ecosystem at large. Hence there is a need to protect the forest in order to ensure sustainable conservation of biodiversity in general and grivet monkeys in particular.