Occurrence records of mammal species in Tana River Basin, Kenya

The dataset represents occurrence records for mammal species in the Tana River Basin (TRB) ecosystem as well as a few outliers from the Aberdare National Park. The data were mainly sourced from published literature and the accessions register of mammal collections maintained by the Mammalogy Section, National Museums of Kenya (NMK). A few additional records were gleaned from unpublished grey literature as well as sightings and reports by ecotourism websites and lodges operating in TRB. Existing records were supplemented by fieldwork in selected areas to help in ground-truthing and filling data gaps. A total of 935 occurrence records represented by 16 orders, 46 families, 124 genera and 183 mammal species are presented here. Sites frequently visited in the past including Mt. Kenya and Meru National Parks had the largest number of mammal observations, while less visited sites such as Mumoni Hill Forest had very few records. The TRB is important for the protection of nine mammals endemic to Kenya including Cercocebus galeritus (Tana River Mangabey), Tachyoryctes rex (King Root-rat), Tachyoryctes spalacinus (Embi African Root-rat), Grammomys gigas (Giant Thicket Rat), Hylomyscus endorobae (Endorobo Wood Mouse), Otomys orestes (Afroalpine Vlei Rat), Crocidura fumosa (Smoky White-toothed Shrew), Surdisorex norae (Aberdare Mole-shrew) and Surdisorex polulus (Mount Kenya Mole-shrew). The ecosystem is also important for the conservation of three endemic mammal sub-species: Colobus guerza kikuyuensis (Mount Kenya Guereza), Cercopithecus mitis albotorquatus (Pousargues’s Monkey) and Perodicticus potto stockleyi (Mount Kenya Potto). Other species of conservation concern found in TRB are two Critically Endangered (CR) species namely, Beatragus hunteri (Hirola) and Diceros bicornis (Black Rhinoceros) as well seven endangered (EN) mammal species (Procolobus rufomitratus (Eastern Red Colobus), Cercocebus galeritus (Tana River Mangabey), Lycaon pictus (African Wild Dog), Equus grevyi (Grévy’s Zebra), Redunca fulvorufula (Mountain Reedbuck), Oryx beisa (Beisa Oryx) and Grammomys gigas (Giant Thicket Rat). This information underscores the importance of the entire TRB ecosystem for the conservation of mammal biodiversity.

本数据集收录了塔纳河流域（Tana River Basin, TRB）生态系统内的哺乳动物物种出现记录，以及少量采自阿伯德尔国家公园的离群观测记录。数据主要来源于已发表文献，以及肯尼亚国家博物馆（National Museums of Kenya, NMK）哺乳动物学部维护的哺乳动物馆藏登记册。另有少量记录来自未发表的灰色文献，以及塔纳河流域内运营的生态旅游网站与营地提供的目击报告与观测记录。为开展野外验证并填补数据空白，研究团队针对选定区域开展了野外调查以补充现有记录。本数据集共包含935条出现记录，隶属于16个目、46个科、124个属，共计183种哺乳动物。过往调查频次较高的区域，如肯尼亚山国家公园与梅鲁国家公园，拥有最多的哺乳动物观测记录；而访问量较低的区域如穆莫尼山森林，相关记录则极少。塔纳河流域对于保护9种肯尼亚特有哺乳动物具有重要意义，分别为：塔纳河白眉猴（Cercocebus galeritus, Tana River Mangabey）、国王掘鼠（Tachyoryctes rex, King Root-rat）、埃姆比非洲掘鼠（Tachyoryctes spalacinus, Embi African Root-rat）、大灌丛鼠（Grammomys gigas, Giant Thicket Rat）、恩多罗博木鼠（Hylomyscus endorobae, Endorobo Wood Mouse）、非洲高山沼泽鼠（Otomys orestes, Afroalpine Vlei Rat）、烟白齿鼩（Crocidura fumosa, Smoky White-toothed Shrew）、阿伯德尔鼹形鼩（Surdisorex norae, Aberdare Mole-shrew）以及肯尼亚山鼹形鼩（Surdisorex polulus, Mount Kenya Mole-shrew）。该生态系统同时对3种哺乳动物特有亚种的保护具有重要价值：盖尔扎疣猴肯尼亚山亚种（Colobus guerza kikuyuensis, Mount Kenya Guereza）、青猴白领亚种（Cercopithecus mitis albotorquatus, Pousargues’s Monkey）以及金熊猴肯尼亚山亚种（Perodicticus potto stockleyi, Mount Kenya Potto）。塔纳河流域内另有其他具有保护价值的物种：2种极危（Critically Endangered, CR）物种，即亨氏长颈羚（Beatragus hunteri, Hirola）与黑犀牛（Diceros bicornis, Black Rhinoceros）；以及7种濒危（Endangered, EN）哺乳动物，分别为东红疣猴（Procolobus rufomitratus, Eastern Red Colobus）、塔纳河白眉猴、非洲野犬（Lycaon pictus, African Wild Dog）、细纹斑马（Equus grevyi, Grévy’s Zebra）、山苇羚（Redunca fulvorufula, Mountain Reedbuck）、贝萨剑羚（Oryx beisa, Beisa Oryx）与大灌丛鼠。上述信息充分凸显了整个塔纳河流域生态系统对哺乳动物生物多样性保护的关键意义。