The Research On Behavior In Captive Black Leaf Monkey (Presbytis Francoisi) And White Cheeked Gibbon (Hylobates Leucogenys)

In the experiment, 6 Black leaf monkey (Presbytis francoisi) and 2 White cheeked gibbon (Hylobates leucogenys) are studied through the Instantaneous and Scan Sampling, Focal Animal Sampling and All Occurrencs Sampling, from September, 2005 to July, 2006, it is conducted that the behavior disciplinarians of action, the time assignment and how to influence the time assignment by the jamming, the illumination strong and the weak, the temperature.. but also through All Occurrences Sampling on White cheeked gibbon (Hylobates leucogenys) to occur sound, Corophagy has conducted the research at the Jinan zoo . In order to provide the basic theory and the instruction for raising Black leaf monkey (Presbytis francoisi) and White cheeked gibbon (Hylobates leucogenys) and enhancing their raising in cages reproduction technology , and so on. The result of experiment is as follows:1.Compared with the opening country Black leaf monkey (Presbytis francoisi), the ones in cages spend their most time on rest .The raising in cages for having rest account for 66%, next for feeding account for 16%, for managing the wool behavior account for 8%, the movement time proportion is 5%, hug, game, attack behavior and so on occurrence proportions are rarely, 6% in all.2. The Black leaf monkey (Presbytis francoisi) day behavior are different in different age and sex . The time in playing, attacking, feeding the younger group presbytis francoisi use is clearly higher than the old age , but the time spent on rest is lower than the old age group firmly, the female spent more time on grooming behavior than the male.3.The Black leaf monkey (Presbytis francoisi) 's rest, feeding, grooming behaviors and so on present rule ,this also is content with the age and the sex. The proportion of the younger Black leaf monkey (Presbytis francoisi) 's rest behavior is high in the summer, low in autumn; the proportion of feeding behavior is low in the summer, high in winter; the proportion of the grooming behavior is low in summer, high in autumn different from the younger Black leaf monkey (Presbytis francoisi).The old Black leaf monkey (Presbytis francoisi) 's rest behavior accounts for the highest proportion in March, appears the lowest in April; feeding behavior accounts for the highest proportion in November, the lowest in September, and or so display high in autumn and winter; the proportion of the grooming behavior is the highest in April and the lowest in November, The male's rest behavior displays low in spring and autumn ,high in summer and winter ;feeding behavior is similar in each month, only higher in March and November; the proportion of the grooming behavior is the highest in spring and autumn , in summer and winter is low. The proportion of the female rest behavior is similar with the male; feeding behavior accounts for the highest proportion is November, next for March, the lowest is in September; the percentage of the grooming behavior in November is obviously higher than any other months, the proportion in November accounts for the biggest. The proportion of the female grooming behavior has the obvious difference, compared with other groups.4.Environmental factors, jamming, illumination strong or weak, temperature and so on all can gave a certain influence on Black leaf monkey (Presbytis francoisi)'s assigns time. For jamming , the Black leaf monkey (Presbytis francoisi) is not easy to be break in on, but the male individual is easy; Between in mild and cloudy days,the female and the sub-grown-up Black leaf monkey (Presbytis francoisi)'s feeding behavior have remarkable difference . Besides the game behavior ,temperature is the primary factor for the Black leaf monkey (Presbytis francoisi)'s activity time assignment, it has the remarkable influence on the movement, the attacking and the hugging behavior, and has extremely obvious effects on the rest, feeding, the grooming and other behaviors.5.The proportion of the time White cheeked gibbon (Hylobates leucogenys) spent on resting is about 58%, for the movement next is about 20%, feeding is about 11%, grooming is approximately 8%, plays games for 3%, attacking, excretion, sounds, copulation, excrement and other behaviors and so on accounts for the time proportion is 2% in all.6.The jamming on White cheeked gibbon (Hylobates leucogenys) behavior about assignment time influence is not obvious; its behavior about assignment time is not obvious difference in sunny day or the cloudy day; on resting, feeding, having sports as well as the game behavior, temperature all has the remarkable influence but on grooming and other behaviors is not obvious .When outdoor temperature is above (20-30℃;), its rest behavior remarkable increase, and when the outdoor temperature is below (0-10℃;),its feeding behavior increase, but when the temperature (10-20℃;) is suitable, the outdoor sport s and the game behavior occur.7 .The female White cheeked gibbon (Hylobates leucogenys) appears the quite special Corophagy behavior.8. Compared with Hylobates hoolock and Hylobates, White cheeked gibbon (Hylobates leucogenys) have the gibbon model sound behavior, its sound frequency is low, the duration is short.