Paying the pipers: Mitigating the impact of anticoagulant rodenticides on predators and scavengers

BioScience
By: , and 

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Abstract

Anticoagulant rodenticides, mainly second-generation forms, or SGARs, dominate the global market for rodent control. Introduced in the 1970s to counter genetic resistance in rodent populations to first-generation compounds such as warfarin, SGARs are extremely toxic and highly effective killers. However, their tendency to persist and accumulate in the body has led to the widespread contamination of terrestrial predators and scavengers. Commercial chemicals that are classified by regulators as persistent, bio-accumulative, and toxic (PBT) chemicals and that are widely used with potential environmental release, such as dichloro-diphenyl-trichloroethane (DDT) or polychlorinated biphenyls (PCBs), have been removed from commerce. However, despite consistently failing ecological risk assessments, SGARs remain in use because of the demand for effective rodent-control options and the lack of safe and humane alternatives. Although new risk-mitigation measures for rodenticides are now in effect in some countries, the contamination and poisoning of nontarget wildlife are expected to continue. Here, we suggest options to further attenuate this problem.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Paying the pipers: Mitigating the impact of anticoagulant rodenticides on predators and scavengers
Series title BioScience
DOI 10.1093/biosci/biw028
Volume 66
Issue 5
Year Published 2016
Language English
Publisher Oxford Journals
Contributing office(s) Patuxent Wildlife Research Center, Contaminant Biology Program
Description 7 p.
First page 401
Last page 407
Online Only (Y/N) N
Additional Online Files (Y/N) N