Daily time spending of captive Trachypithecus phayrei in summer;

Time budget and social behavior of Trachypithecus phayrei in captivity;

Influence of kin-relationship and competition from another female on female offspring s action of Trachypithecus phayrei;

Comparison on palmar pattern intensity of Macaca mulatta and Presbytis;

A Report of Crossbreeding Offspring Reproductively Case of the Captivity Blackleafed Monkey and White-headed Leaf Monkey(Trachypithecus francoisi);

Survey on Distribution and Population of Trachypithecus francoisi in Fusui,Guangxi;

Behavioral Observation of Capitved Francois,Langur (Trachypithecus francoisis) at Qianling Park Zoo,Guiyang,China;

Feeding plant and feeding sites of white-headed langur(Presbytis leucocephalus)were reviewed on the basis of continuous tracting,montoring and video recording in 2006,which afforded data that could be repeatedly checked and validated.

The sequence of feeding behavior,food selection and daily feeding quantity of three Francois langurs were studied in primate center of Nanning zoo from Januany to December in 2002.

Longgang Nature Reserve plays an important role in preserving two langur species of both white-headed langur and francois langur.

Observation on the Unilateral Behavior of Cage-raising Presbytis francoisi in Eating and Grooming;

Observations on the Food Habit of Presbytis francoisi, in Mayanghe Region, Guizhou Province;

By studying on the time budgets of Presbytis francoisi,the interior and environmental factors which affect the time budgets of the group were discussed.