Davis, NicolasSchaffner, ColleenSmith, Tessa E.2012-05-222012-05-222005-02Applied Animal Behaviour Science, 2005, 90(2), pp. 131-1410168159110.1016/j.applanim.2004.08.020http://hdl.handle.net/10034/225113This article is not available through ChesterRep.This article discusses the relationship between visitor numbers to a zoo and activity in the hypothalamic–pituitary–adrenal (HPA) axis of the animals.enArchived with thanks to Applied Animal Behaviour Sciencevisitor effecturinary cortisolspider monkeysstressArticleApplied Animal Behaviour Science