Ademola Olaoluwa John, Vanden Broecke Bram, Leirs Herwig, Mulungu Loth S, Massawe Apia W, Makundi Rhodes H
African Center of Excellence for Innovative Rodent Pest Management and Biosensor Technology Development Sokoine University of Agriculture Morogoro Tanzania.
Department of Wildlife Management Sokoine University of Agriculture Morogoro Tanzania.
Ecol Evol. 2021 Feb 3;11(5):2391-2401. doi: 10.1002/ece3.7214. eCollection 2021 Mar.
occurs abundantly in both disturbed and intact forests in the Ukaguru Mountains within the Eastern Arc Mountains (EAM), Morogoro, Tanzania. While previous studies have reported that anthropogenic disturbances such as grazing, wood cutting, and harvesting have a positive effect on the population density of , the impact of habitat disturbance on its demographic traits is still unknown. We performed a capture-mark-recapture study in both disturbed and intact forests from June 2018 to February 2020 in order to investigate the effects of habitat disturbance on abundance and two demographic traits: survival and maturation of in the Ukaguru Mountains. We found no variation in abundance or maturation between intact and disturbed forests, but habitat type did affect survival. However, this effect was sex-dependent since female survival was higher in disturbed forests, while male survival remained similar across the two forest types potentially due to differences in predation pressure or food availability between the two habitats. Continuous demographic monitoring of in EAM is necessary given that the increasing human population surrounding the landscape is leading to higher deforestation rates and expansion of the pine plantation in the forest reserve.
在坦桑尼亚莫罗戈罗东弧山脉（EAM）内的乌卡古鲁山脉，无论是受干扰的森林还是未受干扰的森林中，其数量都很丰富。虽然之前的研究报告称，放牧、伐木和采伐等人为干扰对其种群密度有积极影响，但其栖息地干扰对其种群统计学特征的影响仍然未知。为了研究栖息地干扰对乌卡古鲁山脉其数量以及两个种群统计学特征（生存和成熟）的影响，我们在2018年6月至2020年2月期间，在受干扰和未受干扰的森林中都进行了标记重捕研究。我们发现，未受干扰的森林和受干扰的森林在数量或成熟方面没有差异，但栖息地类型确实会影响生存。然而，这种影响因性别而异，因为在受干扰的森林中雌性的生存率更高，而在两种森林类型中雄性的生存率保持相似，这可能是由于两种栖息地的捕食压力或食物可获得性存在差异。鉴于该地区周边不断增长的人口导致森林砍伐率上升以及森林保护区内松树种植园的扩张，对东弧山脉的其进行持续的种群统计学监测是必要的。
