Abstract: 　The hand preference of 20 Sichuan golden monkeys (Rhinopithecus roxellana) was studied during their food reaching. In this small sample, population level lateralization was not found, even though half of them showed strong right hand preference. Age effect was not significant even though the incidence of hand preference was higher in adults than in young. Similarly,these monkeys did not exhibit sex-related difference in the direction and strength of hand preference. We suggest that the hand preference of Sichuan golden monkeys should be further studied in a large sample of animals, involving in complex tasks used.

Key words: Rhinopithecus roxellana, Laterality, Food reaching, Age effect, Sex difference

摘要： 　　本文对20只川金丝猴(Rhinopithecus roxellana) 摄食过程中左右“手”的使用频次进行了观察和分析。在样本较小的条件下, 尽管被研究动物中有一半个体明显地倾向于使用右手, 但没有发现统计学上明显的种群水平的单手利现象。虽然本研究中成体金丝猴使用右手的比例在数量上高于幼体, 但在统计学上, 单手利行为不存在明显的年龄差别; 同样, 单手利用行为也不存在统计学上明显的性别差异。建议在未来的研究中采用大样本在解决复杂问题过程中对单手利行为做进一步的探讨。

关键词: 川金丝猴, 单手利, 摄食, 年龄差别, 性别差异