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Morten Elmeros

Exposure of stone marten (Martes foina) and polecat (Mustela putorius) to anticoagulant rodenticides: Effects of regulatory restrictions of rodenticide use

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Exposure of stone marten (Martes foina) and polecat (Mustela putorius) to anticoagulant rodenticides : Effects of regulatory restrictions of rodenticide use. / Elmeros, Morten; Lassen, Pia; Bossi, Rossana; Topping, Christopher J.

I: Science of the Total Environment, Bind 612, 15.01.2018, s. 1358-1364.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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@article{45220d1d57554787855a2d0630b687cd,
title = "Exposure of stone marten (Martes foina) and polecat (Mustela putorius) to anticoagulant rodenticides: Effects of regulatory restrictions of rodenticide use",
abstract = "When anticoagulant rodenticides (ARs) are used to control rodent populations there is also a widespread secondary exposure of non-target predators to ARs. To reduce secondary exposure, regulatory restrictions in AR usage were tightened in Denmark in 2011. The restrictions included the cessation of AR use for plant protection and any use away from buildings, as well as limitations in private consumers' access to ARs. To quantify and evaluate the efficiency of the regulatory measures to reduce secondary exposure, we analysed ARs in liver tissue from 40 stone martens (Martes foina) and 40 polecats (Mustela putorius) collected before and 31 stone martens and 29 polecats collected after the restrictions were imposed.No declines in the prevalence ARs were detected following the regulatory restrictions in either stone marten (Before: 98{\%}, After: 100{\%}) or polecat (Before: 93{\%}, After: 97{\%}). The total AR concentration was higher in stone martens than in polecats in both sampling periods. Between the two sampling periods, the total AR concentrations in the mustelids increased (P <0.001). The increase was significant for stone marten (Before: 419 ng/g ww, After: 1116 ng/g ww, P <0.001), but not for polecat (Before: 170 ng/g ww, After: 339 ng/g ww). Overall, the total AR concentration was positively correlated to the urban area and the area used for Christmas tree production in which ARs were regularly used before 2011.The regulatory restrictions in AR usage did not reduce exposure of non-target stone martens and polecats. The temporal and spatial patterns of AR concentrations in predators indicate that chemical rodent control in and around buildings is the dominant source for the exposure of non-target predators in intensively human-dominated landscapes in Denmark. The results suggest that non-chemical methods for rodents control at buildings are necessary to prevent widespread secondary AR exposure of predators in human modified landscapes. (C) 2017 Elsevier B.V. All rights reserved.",
keywords = "Exposure route, Non-target exposure, Rodent control, Rodenticide regulation, Secondary poisoning, NEW-ZEALAND, RISK, BRODIFACOUM, POPULATIONS, PATTERNS, MAMMALS, DENMARK, FRANCE, FOREST, SITES",
author = "Morten Elmeros and Pia Lassen and Rossana Bossi and Topping, {Christopher J.}",
year = "2018",
month = "1",
day = "15",
doi = "10.1016/j.scitotenv.2017.09.034",
language = "English",
volume = "612",
pages = "1358--1364",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Exposure of stone marten (Martes foina) and polecat (Mustela putorius) to anticoagulant rodenticides

T2 - Effects of regulatory restrictions of rodenticide use

AU - Elmeros, Morten

AU - Lassen, Pia

AU - Bossi, Rossana

AU - Topping, Christopher J.

PY - 2018/1/15

Y1 - 2018/1/15

N2 - When anticoagulant rodenticides (ARs) are used to control rodent populations there is also a widespread secondary exposure of non-target predators to ARs. To reduce secondary exposure, regulatory restrictions in AR usage were tightened in Denmark in 2011. The restrictions included the cessation of AR use for plant protection and any use away from buildings, as well as limitations in private consumers' access to ARs. To quantify and evaluate the efficiency of the regulatory measures to reduce secondary exposure, we analysed ARs in liver tissue from 40 stone martens (Martes foina) and 40 polecats (Mustela putorius) collected before and 31 stone martens and 29 polecats collected after the restrictions were imposed.No declines in the prevalence ARs were detected following the regulatory restrictions in either stone marten (Before: 98%, After: 100%) or polecat (Before: 93%, After: 97%). The total AR concentration was higher in stone martens than in polecats in both sampling periods. Between the two sampling periods, the total AR concentrations in the mustelids increased (P <0.001). The increase was significant for stone marten (Before: 419 ng/g ww, After: 1116 ng/g ww, P <0.001), but not for polecat (Before: 170 ng/g ww, After: 339 ng/g ww). Overall, the total AR concentration was positively correlated to the urban area and the area used for Christmas tree production in which ARs were regularly used before 2011.The regulatory restrictions in AR usage did not reduce exposure of non-target stone martens and polecats. The temporal and spatial patterns of AR concentrations in predators indicate that chemical rodent control in and around buildings is the dominant source for the exposure of non-target predators in intensively human-dominated landscapes in Denmark. The results suggest that non-chemical methods for rodents control at buildings are necessary to prevent widespread secondary AR exposure of predators in human modified landscapes. (C) 2017 Elsevier B.V. All rights reserved.

AB - When anticoagulant rodenticides (ARs) are used to control rodent populations there is also a widespread secondary exposure of non-target predators to ARs. To reduce secondary exposure, regulatory restrictions in AR usage were tightened in Denmark in 2011. The restrictions included the cessation of AR use for plant protection and any use away from buildings, as well as limitations in private consumers' access to ARs. To quantify and evaluate the efficiency of the regulatory measures to reduce secondary exposure, we analysed ARs in liver tissue from 40 stone martens (Martes foina) and 40 polecats (Mustela putorius) collected before and 31 stone martens and 29 polecats collected after the restrictions were imposed.No declines in the prevalence ARs were detected following the regulatory restrictions in either stone marten (Before: 98%, After: 100%) or polecat (Before: 93%, After: 97%). The total AR concentration was higher in stone martens than in polecats in both sampling periods. Between the two sampling periods, the total AR concentrations in the mustelids increased (P <0.001). The increase was significant for stone marten (Before: 419 ng/g ww, After: 1116 ng/g ww, P <0.001), but not for polecat (Before: 170 ng/g ww, After: 339 ng/g ww). Overall, the total AR concentration was positively correlated to the urban area and the area used for Christmas tree production in which ARs were regularly used before 2011.The regulatory restrictions in AR usage did not reduce exposure of non-target stone martens and polecats. The temporal and spatial patterns of AR concentrations in predators indicate that chemical rodent control in and around buildings is the dominant source for the exposure of non-target predators in intensively human-dominated landscapes in Denmark. The results suggest that non-chemical methods for rodents control at buildings are necessary to prevent widespread secondary AR exposure of predators in human modified landscapes. (C) 2017 Elsevier B.V. All rights reserved.

KW - Exposure route

KW - Non-target exposure

KW - Rodent control

KW - Rodenticide regulation

KW - Secondary poisoning

KW - NEW-ZEALAND

KW - RISK

KW - BRODIFACOUM

KW - POPULATIONS

KW - PATTERNS

KW - MAMMALS

KW - DENMARK

KW - FRANCE

KW - FOREST

KW - SITES

U2 - 10.1016/j.scitotenv.2017.09.034

DO - 10.1016/j.scitotenv.2017.09.034

M3 - Journal article

VL - 612

SP - 1358

EP - 1364

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -