海南吊罗山国家级自然保护区黄额闭壳龟种群密度调查

Population Densities of Cuora galbinifrons at Diaoluoshan Nature Reserve, Hainan Island, China

2005年7～9月(雨季)和2006年2～4月(旱季),对海南吊罗山国家级自然保护区海拔900～1100m地区的黄额闭壳龟Cuoragal binifrons种群密度进行了调查。在调查样区内根据植被类型随机选取6个调查样区,424个布笼点,6360个笼捕日,调查面积6·36km2,捕获黄额闭壳龟5只,其中,人工林中黄额闭壳龟的相对密度为0只/笼捕日,天然林中的相对密度为0·0009只/笼捕日;样带法计算调查区域黄额闭壳龟绝对种群密度为0·7862只/km2。由于人为猎捕和生境破坏等原因,黄额闭壳龟的野生种群呈岛屿状分布。

From July to September,2005,and February to April,2006,field survey on population density of Indo-Chinese box turtle Cuora galbinifrons was conducted at Diaoluoshan village,Diaoluoshan nature reserve （18°43′538″ N,109°52′109″ E,El.914 m） in Hainan Island.Six sample areas were investigated with 424 baited traps and 6360 traps·days.The density was 0.0009/trap·day and 0.7862/km2 in natural forest and absent in plantation in Diaoluoshan nature reserve.Because of hunting and habitat destroyed,population is isolated at different area.