Behavioural and physiological responses of birds to environmentally relevant concentrations of an antidepressant

被引:33
作者
Bean, Tom G. [1 ]
Boxall, Alistair B. A. [1 ]
Lane, Julie [2 ]
Herborn, Katherine A. [3 ]
Pietravalle, Stephane [4 ]
Arnold, Kathryn E. [1 ]
机构
[1] Univ York, Dept Environm, York YO10 5DD, N Yorkshire, England
[2] Anim Hlth & Vet Labs Agcy, Natl Wildlife Management Ctr, York YO41 1LZ, N Yorkshire, England
[3] Univ Glasgow, Inst Biodivers Anim Hlth & Comparat Med, Glasgow G12 8QQ, Lanark, Scotland
[4] Food & Environm Res Agcy, York YO41 1LZ, N Yorkshire, England
基金
英国自然环境研究理事会;
关键词
fluoxetine; personality traits; corticosterone; Prozac; foraging behaviour; PERSONAL CARE PRODUCTS; FLUOXETINE TREATMENT; STRESS HORMONES; CORTICOSTERONE; PHARMACEUTICALS; FISH; RISK; CONSERVATION; POPULATIONS; EXPLORATION;
D O I
10.1098/rstb.2013.0575
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Many wildlife species forage on sewage-contaminated food, for example, at wastewater treatment plants and on fields fertilized with sewage sludge. The resultant exposure to human pharmaceuticals remains poorly studied for terrestrial species. On the basis of predicted exposure levels in the wild, we administered the common antidepressant fluoxetine (FLUOX) or control treatment via prey to wild-caught starlings (Sturnus vulgaris) for 22 weeks over winter. To investigate responses to fluoxetine, birds were moved from their group aviaries into individual cages for 2 days. Boldness, exploration and activity levels showed no treatment effects but controls and FLUOX birds habituated differently to isolation in terms of the concentration of corticosterone (CORT) metabolites in faeces. The controls that excreted higher concentrations of CORT metabolites on day 1 lost more body mass by day 2 of isolation than those which excreted lower levels of CORT metabolites. CORT metabolites and mass loss were unrelated in FLUOX birds. When we investigated the movements of birds in their group aviaries, we found the controls made a higher frequency of visits to food trays than FLUOX birds around the important foraging periods of sunrise and sunset, as is optimal for wintering birds. Although individual variability makes interpreting the sub-lethal endpoints measured challenging, our data suggest that fluoxetine at environmentally relevant concentrations can significantly alter behaviour and physiology.
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页数:9
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