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Evaluation of alternative PCB clean-up strategies using an individual-based population model of mink.

Authors
  • Salice, Christopher J1
  • Sample, Bradley E
  • Miller Neilan, Rachael
  • Rose, Kenneth A
  • Sable, Shaye
  • 1 Department of Environmental Toxicology, Texas Tech University, Lubbock, TX 79410, USA. [email protected]
Type
Published Article
Journal
Environmental pollution (Barking, Essex : 1987)
Publication Date
Dec 01, 2011
Volume
159
Issue
12
Pages
3334–3343
Identifiers
DOI: 10.1016/j.envpol.2011.08.033
PMID: 21906861
Source
Medline
License
Unknown

Abstract

Population models can be used to place observed toxic effects into an assessment of the impacts on population-level endpoints, which are generally considered to provide greater ecological insight and relevance. We used an individual-based model of mink to evaluate the population-level effects of exposure to polychlorinated biphenyls (PCBs) and the impact that different remediation strategies had on mink population endpoints (population size and extinction risk). Our simulations indicated that the initial population size had a strong impact on mink population dynamics. In addition, mink populations were extremely responsive to clean-up scenarios that were initiated soon after the contamination event. In fact, the rate of PCB clean-up did not have as strong a positive effect on mink as did the initiation of clean-up (start time). We show that population-level approaches can be used to understand adverse effects of contamination and to also explore the potential benefits of various remediation strategies.

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