Home range, habitat use, and activity of Baird's tapir in Costa Rica
Home range, habitat use, and activity of Baird's tapir in Costa Rica
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DOI：
10.1111/j.1744-7429.2002.tb00556.x
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发表时间：
2002-09-01
期刊：
影响因子：
2.1
通讯作者：
Vaughan, C
中科院分区：
文献类型：
--
作者：
Foerster, CR;Vaughan, C
1995年6月至1996年5月，利用无线电遥测技术对哥斯达黎加科科瓦多国家公园5只成年白头貘（Tapirus bairdii）的家域大小、生境利用和活动模式进行了研究。估计有4153个动物的位置。整个研究期间（雨季和旱季）的栖息地面积（95%最小凸多边形）平均分别为125.0公顷（SD = 72.7）、94.9公顷（SD = 47.6）和96.8公顷（SD = 51.2）。每月房屋面积平均为55.5公顷（SD = 32.1），季节之间没有变化。在整个研究中，最常用的栖息地类型次生林（61.3%）的利用率高于预期（49.6%），而第二大栖息地原生林（25.0%）的利用率低于预期（36.2%）。在旱季观察到相同的一般生境选择模式。湿季生境利用值表明，貘对原生林和次生林生境的利用与其可利用性呈正比。据估计，白天和夜间的活动水平分别为20.2%和80.4%。与旱季相比，雨季观察到更多的白天活动和更少的夜间活动。
Home range size, habitat utilization, and activity patterns of five adult Baird's tapirs (Tapirus bairdii) were studied via radiotelemetry from June 1995 to May 1996 in Corcovado National Park, Costa Rica. Estimates of 4153 animal locations were made. Home range sizes (95% minimum convex polygon) for the entire study period (wet season and dry season) averaged 125.0 ha (SD = 72.7), 94.9 ha (SD = 47.6), and 96.8 ha (SD = 51.2), respectively. Monthly home range sizes averaged 55.5 ha (SD = 32.1) and did not vary between seasons. Across the entire study, secondary forest, the most commonly used habitat type (61.3%) was utilized more than expected as predicted by availability (49.6%), while the second most used habitat, primary forest, was used (25.0%) less than expected (36.2%). The same general habitat selection pattern was observed in the dry season. Wet season habitat utilization values showed tapirs using both primary and secondary forest habitats in proportion to their availability. Diurnal and nocturnal activity levels were estimated at 20.2 and 80.4 percent, respectively. More diurnal and less nocturnal activity was observed during the wet season compared to the dry season.