| Summary: | 碩士 === 國立屏東科技大學 === 野生動物保育研究所 === 97 === Daily activity pattern and habitat selection are important ecological data for understanding wildlife conservation. The resource competition and niche division by sympatric animals, is vital for sustainable resource allocation in ecological management.
Cat Tien National Park (CTNP), the largest lowland rainforest in South Vietnam, contains diverse habitats, sustaining a high biodiversity of fauna. Human activities however surrounding the boundary and illegal activities inside the national park are causing a serious problem, threatening this unique biodiversity.
Camera trapping was used from July, 2006 to July, 2007 in CTNP to systematically survey the medium-to-large terrestrial mammal populations. Together with habitat factor measurement, daily activity pattern and habitat selection were analyzed. Seventy camera traps with 209 rolls of film were used, resulting in 4696 photographs from 3523 working days. Species confirmed present included 26 mammals, 15 birds, and one lizard from camera traps, with additional confirmation of four more mammal species from direct sightings.
Daily activity patterns were confirmed in three species, including nocturnal common palm civet (Paradoxurus hermaphrodites), diurnal species of pig-tailed macaque (Macaca leonina) and lesser mouse deer (Tragulus javanicus). Another five species with insufficient photographs were analyzed for reference.
Fourteen independent variables are used in analysis of habitat selection of eight species with more than 30 useful photographs. Based on the data collected from different species, Multiple Linear Regression, Negative Binomial Regression, and Zero-Inflated Negative Binomial Regression are used. Forest type and the distance to the nearest guard station are found to be the most influential factors in habitat selection.
For the eight species, distribution and relative abundance are discussed from the locations of the camera traps and their frequency of occurrence. For the species with insufficient data from camera trapping, other animal tracks and direct sightings are used with former study results to get better understanding of their distribution.
According to this research, human activity has become influential in animal activity patterns and habitat uses. Illegal human activities should be controlled based on the power of forest guard station. To make the database more comprehensive, arboreal mammal research is required. Long term monitoring toward non-specific mammals is necessary in understanding their population status and sustainable management.
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