Daily activity, feeding ecology and habitat association of Gelada baboon (Theropithecus gelada) around Debre-Libanos, Northwest Shewa Zone, Ethiopia
Daily activity, feeding ecology and habitat association of Gelada baboon (Theropithecus gelada) around Debre-Libanos, Northwest Shewa Zone, Ethiopia
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埃塞俄比亚西北谢瓦区德布雷-利巴诺斯周围狒狒（Theropithecus gelada）的日常活动、摄食生态和栖息地关联
DOI：
10.5897/ijbc2017.1080
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Addisu Mekonen
中科院分区：
文献类型：
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作者：
Kassahun Abie;A. Bekele;Addisu Mekonen
2012年8月至2013年3月，利用野外直接观测的方法，对德布雷-利巴诺斯一带的Gelada狒狒的日常活动、摄食生态和栖息地关联性进行了调查。用瞬时扫描采样法采集了两个研究组的行为数据，平均每月7天。焦点组通过自然标记、大小、毛色和每个组中一些不同成员的面部特征来识别。使用描述性统计对数据进行分析，并使用卡方检验比较回答。平均而言，Gelada狒狒在觅食上花费的时间(56.12%)比其他任何活动都多。他们有16.76%的时间在活动，16.05%的时间在社交，9.42%的时间在休息。发声、排便、注视观察者等活动发生频率较低(1.66%)。雨季以草为主(82.1%)，旱季以根(21.35%)和叶(20.04%)为主。结果表明，在整个研究期内，花冠蝠的活动时间分配存在显著差异(χ2=46.779，df=4，p<；0.0 5)，研究区花冠蝠的植被类型利用和分布明显偏向于开阔的陡峭草原栖息地。研究区内各栖息地的栖息地利用率差异有统计学意义(χ2=742.660，df=2，p<；0.05)。
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关键词：觅食，格拉达狒狒，栖息地联想，日常活动。
Daily activity, feeding ecology and habitat association of Gelada baboon around Debre-Libanos was investigated using direct field observations from August 2012 to March 2013. Instantaneous scan sampling method was used to collect behavioral data from two selected study groups of gelada baboons on an average of 7 days per month. The focal groups were identified by the natural marking, size, coat color and facial features of some distinctive members of each of these groups. Data were analyzed using descriptive statistics, and responses were compared using Chi-square tests. On average, Gelada baboons spent more time on feeding (56.12%) than any other activity. They spent 16.76% of their time moving, 16.05% socializing, and 9.42% resting. Other activities such as vocalization, defecation and looking at the observer occurred infrequently (1.66%). They depended fully on grass during the wet season (82.1%), but during the dry season, they fed on roots (21.35%) and leaves (20.04%) in larger proportion. There was significant variation among the activity time budget of gelada baboons in the whole study period (χ2=46.779, df=4, p<0.05). The vegetation type utilization and distribution of Gelada baboon of the study area indicated a marked preference for open cliffy grassland habitat. The overall gelada baboon’s habitat utilization showed statistical difference in the study area (χ2=742.660, df=2, p<0.05).
Key words: Foraging, Gelada baboon, habitat association, daily activity.