A Preliminary Survey of Medium- and Large-Sized Mammals and Their Conservation Status in the Asimba Forest Priority Area, Semiarid Highlands of Northern Ethiopia

Q2 Environmental Science International Journal of Ecology Pub Date : 2024-02-24 DOI:10.1155/2024/6613762
T. Girmay, Haylegebriel Tesfay
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Abstract

Mammal species provide vital environmental and economic functions although they globally face numerous threats. Knowledge of the composition and diversity of mammal species provide information for appropriate management interventions. We conducted this study from July 2019 to February 2020 to assess the species composition, diversity, and conservation of medium- and large-sized mammals in the Asimba Forest Priority Area, northern Ethiopia. Data were collected through direct and indirect evidence from three habitat types, namely, natural forest, bushland, and plantation forest. We analyzed the data using descriptive statistics and the Species Diversity Index. We also used χ2 to compare differences in the number of observations and species richness of the mammal species in different habitats between the dry and wet seasons. A total of 263 observations were compiled, and 15 medium- and large-sized mammalian species were recorded in the Asimba Forest Priority Area. The Species Diversity Index and Evenness of the area were H′ = 2.436 and J = 0.899, respectively. Hamadryas baboon (Papio hamadryas) was the most commonly observed species, with 20.7 and 19.2 relative frequencies in the dry and wet seasons, respectively, whereas striped polecat (Ictonyx striatus) was the rarest species, with 3.0 and 0.0 relative frequencies during the dry and wet seasons, respectively. The number of observations (χ2 = 2.298, df = 2, and p=0.316) and species richness (χ2 = 0.115, df = 2, and p=0.943) did not differ significantly in the three habitats. Anthropogenic factors, mainly habitat destruction and overgrazing, were widely observed in the Asimba forest as conservation threats to the mammal species. The current study helps to increase knowledge about the mammal species of the area and is essential for their future conservation strategies.
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埃塞俄比亚北部半干旱高原阿辛巴森林重点地区中大型哺乳动物及其保护现状初步调查
哺乳动物物种在全球范围内面临着众多威胁,但它们却发挥着重要的环境和经济功能。对哺乳动物物种组成和多样性的了解为适当的管理干预提供了信息。我们于 2019 年 7 月至 2020 年 2 月开展了这项研究,以评估埃塞俄比亚北部阿辛巴森林重点地区中大型哺乳动物的物种组成、多样性和保护情况。数据是通过三种栖息地类型(即天然林、灌木林和人工林)的直接和间接证据收集的。我们使用描述性统计和物种多样性指数对数据进行了分析。我们还使用χ2比较了旱季和雨季不同生境中哺乳动物物种的观察数量和物种丰富度的差异。在阿辛巴森林重点保护区共观察到263个物种,记录到15个中型和大型哺乳动物物种。该地区的物种多样性指数和均匀度分别为 H′ = 2.436 和 J = 0.899。哈马德里亚狒狒(Papio hamadryas)是最常观察到的物种,在旱季和雨季的相对出现频率分别为 20.7 和 19.2,而条纹竹丝猫(Ictonyx striatus)是最稀有的物种,在旱季和雨季的相对出现频率分别为 3.0 和 0.0。三种栖息地的观察数(χ2 = 2.298,df = 2,p=0.316)和物种丰富度(χ2 = 0.115,df = 2,p=0.943)没有显著差异。人类活动因素,主要是栖息地破坏和过度放牧,在阿辛巴森林中被广泛观察到,是对哺乳动物物种保护的威胁。目前的研究有助于增加对该地区哺乳动物物种的了解,对其未来的保护策略至关重要。
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来源期刊
International Journal of Ecology
International Journal of Ecology Environmental Science-Ecology
CiteScore
2.20
自引率
0.00%
发文量
16
审稿时长
15 weeks
期刊最新文献
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