Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/42118
Title: Rate of exposure of a sentinel species, invasive American mink (Neovison vison) in Scotland, to anticoagulant rodenticides
Authors: Ruiz-Suárez, Norberto
Melero, Yolanda
Giela, Anna
Henríquez Hernández, Luis Alberto 
Sharp, Elizabeth
Domínguez Boada, Luis María 
Taylor, Michael J.
Camacho, Maria 
Lambin, Xavier
Pérez Luzardo, Octavio Luis 
Hartley, Gill
UNESCO Clasification: 3214 Toxicología
Keywords: Age
Contaminants
Exposure risks
Land use
Mustelid
Issue Date: 2016
Journal: Science of the Total Environment 
Abstract: Anticoagulant rodenticides (ARs) are highly toxic compounds that are exclusively used for the control of rodent pests. Despite their defined use, they are nonetheless found in a large number of non-target species indicating widespread penetration of wildlife. Attempts to quantify the scale of problem are complicated by non-random sampling of individuals tested for AR contamination. The American mink (Neovison vison) is a wide ranging, non-native, generalist predator that is subject to wide scale control efforts in the UK. Exposure to eight ARs was determined in 99 mink trapped in NE Scotland, most of which were of known age. A high percentage (79%) of the animals had detectable residues of at least one AR, and more than 50% of the positive animals had two or more ARs. The most frequently detected compound was bromadiolone (75% of all animals tested), followed by difenacoum (53% of all mink), coumatetralyl (22%) and brodifacoum (9%). The probability of mink exposure to ARs increased by 4.5% per month of life, and was 1.7 times higher for mink caught in areas with a high, as opposed to a low, density of farms. The number of AR compounds acquired also increased with age and with farm density. No evidence was found for sexual differences in the concentration and number of ARs. The wide niche and dietary overlap of mink with several native carnivore species, and the fact that American mink are culled for conservation throughout Europe, suggest that this species may act as a sentinel species, and the application of these data to other native carnivores is discussed.
URI: http://hdl.handle.net/10553/42118
ISSN: 0048-9697
DOI: 10.1016/j.scitotenv.2016.06.109
Source: Science Of The Total Environment[ISSN 0048-9697],v. 569, p. 1013-1021
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