The Research On Habitat Selection, Utilization And Feeding Biology Of White-headed Leaf Monkey (Presbytis Leucocephalus)

The research on the habitat selection and utility and feeding biology of White-headed leaf monkey ( Presbytis leucocephalus ) was carried out from February, 1996 to march, 1998 in Longlin habitat of Fushui Rare Animal Protection Station, Fushui County, Guangxi. We collected data of plant diversity of tfhe monkey's . karst habitat, selective utilization, home range, daily activity rhythm and time budget, dietary and feeding, nutrition material analysis and its present situation etc. and made analysis with statistics. With all of these data, we wanted to reveal how this monkey used karst habitat, adapted this special area, while discussed the research method, brought some new ideas and provided some information to effectively protect this narrow-distributed rear monkey. The main results were as following:1. We made the survey on plant diversity of Longlin White-headed leaf monkey habitat. The Shannon-wienner diversity index and eveness index of it- were 6.152 and 0.8439 respectively. With three parts of karst hill divided, we found that the hill foot is the most important place for white-headed leaf monkey. Therefore, to protect the monkey, first we should protect the vegetation of the hill foot.2. We took the three-dimensional home range concept into monkey research which had special meaning for white-headed leaf monkey where the monkey lives. Following three groups for whole year, we calculated its home range with 53.49±9.68 ha. There was 27.42-64.2% overlapping between the neighboring groups with average day range of 651.59+ 179.54 m and average day area of 2.406+1.93 ha.3. We first time found that the day range and day area of the monkey had seasonal change which was shorter or smaller in summer and longer or larger in winter. This seasonal change was caused by many factors including food available, weather etc. After further analysis, we found that the weather factor paid more important role on this change. The seasonal change of day range and day area of the monkey was the adaptation to weather of subtropics area and karst area.