We investigated the population status and habitat association of the endemic Swayne’s Hartebeest (Alcelaphus buselaphus swaynei (Sclater, 1892)) in the Maze National Park, Southern Ethiopia, in 2018 and 2019. Sample count method line-transect was used for the population estimation, while habitat association was made based on the abundance of individuals counted in each habitat. Data were analyzed using descriptive statistics and comparisons with χ2 test. The total estimated populations of Swayne’s Hartebeest (SHB) in the study period were 1456 and 1492 during wet and dry seasons, respectively showing no seasonal variation. Among the total estimated population, 31% were adult males, 38.46% adult females, 13.97% sub adult males, 15.94% sub adult females and 1.07% young. The number of adult females was higher than the other age groups followed by adult males in both seasons. Significant differences were reported among age and sex structure of population size during both seasons (wet season: χ2= 58.423, df =3, P < 0.05; dry season: χ2=534.079, df= 4, P < 0.05). The maximum group size was 36 and the minimum was 1. The ratio of adult males to adult females was 1:1.24 and 1:1.24, sub-adult males to sub adult females was 1:1.16 and 1:1.12, adult males to sub-adult males was 1:0.36 and 1:0.56, adult females to sub-adult females was 1:0.33 and 1:0.49 in the wet and dry seasons, respectively. The male to female ratio was 1:1.22 and 1:1.19 during wet and dry seasons as well. The population trend among ten years were significantly differed (χ 2 = 1.708, df= 9, P< 0.05). The SHB was distributed into three types of habitat (riverine forest, open grassland and scattered tree) with significant differences (χ2=1109.937, df = 3, P < 0.05). The savannah grass land was most preferable habitat followed by scattered tree habitat. Maintaining its critical habitat was highly recommended for sustainability of current population status.

中文翻译：

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埃塞俄比亚南部迷宫国家公园，斯旺的羚羊（Alcelaphus Buselaphus Swaynei（Sclater，1892））的人口状况和栖息地协会

我们在2018年和2019年调查了埃塞俄比亚南部迷宫国家公园特有的斯韦恩氏羚羊（Alcelaphus buselaphus swaynei（Sclater，1892））的种群状况和栖息地关联。使用样本计数方法线样法进行种群估计，而栖息地协会则是根据每个栖息地中被计数的个体数量进行的。使用描述性统计数据分析数据，并与χ2检验进行比较。在研究期中，Swayne的Hartebeest（SHB）的估计种群在雨季和旱季分别为1456和1492，没有季节性变化。在估计的总人口中，成年男性为31％，成年女性为38.46％，亚成年男性为13.97％，亚成年女性为15.94％，年轻人为1.07％。在两个季节中，成年女性的数量均高于其他年龄组，其次是成年男性。在两个季节中，年龄和性别结构的人群之间存在显着差异（湿季：χ2= 58.423，df = 3，P <0.05；旱季：χ2= 534.079，df = 4，P <0.05）。小组的最大人数为36，最小值为1。成年男性与成年女性的比例为1：1.24和1：1.24，成年男性与成年女性的比例为1：1.16和1：1.12，成年男性与成年男性-男性在雨季和旱季分别为1：0.36和1：0.56，成年雌性对次成年雌性分别为1：0.33和1：0.49。在潮湿和干燥的季节，男女比例分别为1：1.22和1：1.19。十年间的人口趋势存在显着差异（χ2 = 1.708，df = 9，P <0.05）。SHB分为三种类型的生境（河流森林，开阔的草地和零星的树木），差异显着（χ2= 1109.937，df = 3，P <0.05）。大草原草地是最可取的栖息地，其次是零散的树木栖息地。强烈建议维持其关键栖息地，以维持当前人口状况。