Hoolock gibbon depended on and preferred for the tall arbor.Less use of understory by hoolock gibbon was related to homogeneous of vegetation and the lower degree of human disturbance.

• 白眉长臂猿对高大乔木具有依赖性和选择偏好，对林下竹灌层的选择不高与植被分布均匀和人为干扰强度较小有关。