A Review of Pathogens, Diseases, and Contaminants of Muskrats (Ondatra zibethicus) in North America

Laken S. Ganoe, Justin D. Brown, Michael J. Yabsley, Matthew J. Lovallo, W. David Walter

Research output: Contribution to journalReview articlepeer-review

5 Scopus citations

Abstract

Over the last 50 years, significant muskrat (Ondatra zibethicus) harvest declines have been observed throughout North America. Several theories for the decline have been proposed, including increased parasite infections and disease within muskrat populations. No existing wholistic review of muskrat exposure to pathogens, contaminants, and diseases exists. To address this knowledge gap, we conducted a thorough review of existing literature on muskrat pathogens, contaminants, and diseases across their natural range. This review is comprised of 131 articles from 1915 to 2019 and from 27 U.S. states and 9 Canadian provinces. A wide diversity of contaminants, toxins, and pathogens were reported in muskrats, with the most common diseases being cysticercosis, tularemia, Tyzzer's disease, and biotoxin poisoning from cyanobacteria. This review provides a summary of muskrat pathogens, contaminants, and diseases over a century that has observed significant population declines throughout the species' range in North America. Such data provide a baseline for understanding the potential role of disease in these declines. In addition, these data highlight critical knowledge gaps that warrant future research efforts.

Original languageEnglish (US)
Article number233
JournalFrontiers in Veterinary Science
Volume7
DOIs
StatePublished - May 15 2020

All Science Journal Classification (ASJC) codes

  • veterinary(all)

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