Gojo Cruz Paul Henric P, Afuang Leticia E, Gonzalez Juan Carlos T, Gruezo William Sm
Dept. of Biological Science, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines Dept. of Biological Science, Central Luzon State University Science City of Muñoz, Nueva Ecija Philippines.
Animal Biology Division, Institute of Biological Sciences, University of the Philippines Los Baños, Los Baños, Laguna, Philippines Animal Biology Division, Institute of Biological Sciences, University of the Philippines Los Baños Los Baños, Laguna Philippines.
Biodivers Data J. 2019 Feb 14(7):e31638. doi: 10.3897/BDJ.7.e31638. eCollection 2019.
The recent extensive survey conducted in the Pantabangan-Carranglan Watershed, located in the Caraballo Mountain Range during the rainy season (October to November) resulted in the recording of fifty-nine (59) species of amphibians and reptiles (17 frogs, 14 skinks, 3 agamids, 6 gekkonid lizards, 2 varanids and 17 snakes). Out of 59 species, 42 species were Philippine endemics and 25 species are recorded only from the Luzon faunal region. Habitat analysis and mapping showed seven habitat types including lowland dipterocarp forest, grassland, lower montane forest, upper montane forest, pine forest, agricultural areas and riparian habitats. GIS-based distribution mapping showed that the number of individuals and species are high in forest and associated riparian habitats at mid-elevation (1,000-1,250 m a.s.l.). The distribution pattern in the area is influenced by similarity in microclimatic conditions, availability of resources and niches which species can utilise. Species diversity is centred in mid- to high elevation forest and riparian habitats and in less disturbed areas. Snake diversity is adversely affected by increased disturbance, making them good indicators of the health of an area. The abundance-based Jaccard's Similarity Index showed that connected habitats and elevation gradients have higher species similarity.
最近在雨季（10月至11月）对位于卡拉巴洛山脉的潘塔邦安-卡兰格兰流域进行的广泛调查，记录了59种两栖动物和爬行动物（17种蛙类、14种石龙子、3种鬣蜥、6种壁虎科蜥蜴、2种巨蜥和17种蛇类）。在这59个物种中，42种是菲律宾特有物种，25种仅在吕宋动物区系地区有记录。栖息地分析和绘图显示了七种栖息地类型，包括低地龙脑香林、草原、低山地森林、高山地森林、松林、农业区和河岸栖息地。基于地理信息系统的分布图显示，中海拔（海拔1000 - 1250米）的森林及相关河岸栖息地的个体和物种数量较多。该地区的分布模式受微气候条件的相似性、物种可利用的资源和生态位的可用性影响。物种多样性集中在中高海拔森林和河岸栖息地以及受干扰较少的地区。蛇类多样性受到干扰增加的不利影响，使其成为该地区健康状况的良好指标。基于丰度的杰卡德相似性指数表明，相连的栖息地和海拔梯度具有更高的物种相似性。
