首页> 外文期刊>Bonn zoological Bulletin >Terrestrial small mammal assemblage from pellets of three sympatric owl species in the Mount Oku area (Northwest Cameroon), with implications for conservation
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Terrestrial small mammal assemblage from pellets of three sympatric owl species in the Mount Oku area (Northwest Cameroon), with implications for conservation

机译:来自奥库山地区(喀麦隆西北部)的三种同伴猫头鹰物种的颗粒的陆地小哺乳动物组合,对保护具有重要意义

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Mount Oku is well known for its exceptional species diversity for both animals and plants. A total number of27 species of rodents and six species of shrews are reported from the area. Ten of these species are endemic at local orregional level and are considered as endangered or vulnerable, with a decreasing population trend. They are thus consideredas having a high conservation importance. We sampled terrestrial small mammals from owl pellets during a period of22 months in different areas near the village Oku, in order to assess the importance of these taxa in the diet of owl speciespresent in the area. The 236 pellets attributed to three sympatric owl species (Barn owl, Tyto alba, the African wood owl,Strix woodfordii, Northern white-faced owl, Ptilopsis leucotis), yielded a total number of 543 specimens of rodents andshrews, belonging to 22 species (16 species of rodents and six species of shrews). They represented respectively 69.06%and 30.94% of the total assemblage, the species Dasymys sp., with a final score of 18.23%, having the highest relativeabundance. Of the ten species with a high conservation importance, only Lemniscomys mittendorfi was missing. Allconstituted about 27.62% of all specimens collected, with a relative abundance of 4.23% for species strictly restricted toMount Oku. This study confirms the position of Mount Oku as an important conservation area for rodents and shrews,and highlights the evidence that terrestrial small mammal predation by owls cannot be considered a threat to species ofconservation concern at Mount Oku.
机译:奥库山以其动植物种类丰富而著称。该地区报告了总共27种啮齿动物和6种sh。这些物种中有十个在地方或区域级别是地方性的,被认为是濒危或脆弱的,种群数量呈下降趋势。因此,它们被认为具有高度的保护重要性。在22个月的时间里,我们在奥库村附近的不同地区从猫头鹰颗粒中采集了陆生小型哺乳动物,以评估这些分类单元在该地区猫头鹰物种饮食中的重要性。这236个颗粒归因于3种同伴猫头鹰物种(谷仓猫头鹰,Tyto alba,非洲木猫头鹰,Strix woodfordii,北白脸猫头鹰,白带菌),共产生了543个啮齿动物和sh的标本,属于22种( 16种啮齿动物和6种sh。它们分别代表总种群Dasymys sp。的69.06%和30.94%,最终得分为18.23%,相对丰度最高。在具有高度保护重要性的十个物种中,仅缺少Lemniscomys mittendorfi。全部构成了全部标本的约27.62%,对于严格限制在奥库山上的物种,其相对丰度为4.23%。这项研究证实了奥库山作为啮齿动物和sh的重要保护区的地位,并强调了证据表明,不能将猫头鹰捕食的陆地小型哺乳动物视为对奥库山保护物种的威胁。

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