1Newberry R C. Environmental enrichment: increasing the biological relevance of captive environments[J]. Applied Animal Behaviour Science, 1995,44(2-4):229.
2Frick K M, Fernandez S M. Enrichment enhances spatial memory and increases synaptophysin levels in aged female mice[J]. Neurobiology of Aging, 2003,24(4):615.
3Renner Michael J A,Lussier Jennifer Plebani. Environmental enrichment for the captive spectacled bear[J]. Pharmacology Biochemistry and Behavior, 2002,73(1):279.
4Schapiro Steven J, Bloomsmith M A. Enrichment effects on rhesus monkeys successively housed singly, in pairs, and in groups[J]. Applied Animal Behaviour Science, 1996,48(3-4):159.
5Dukas Reuven M A. Environmental enrichment improves mating success in fruit flies[J]. Animal Behaviour, 2003,66(4):741.
6Swaisgood R R. A quantitative assessment of the efficacy of an environmental enrichment programme for giant pandas[J]. Animal Behaviour, 2001,61(2):447.
7郭耕 程玉.世界猿猴一览2版[M].北京:科学普及出版社,1995.218-220.
8Tarou L R, Kuhar C W, Adcock D, et al. Computer-assisted enrichment for zoo-housed orangutans[J]. Animal Welfare, 2004,13:445.