Diversity and distribution of white-tailed deer mtdna lineages in chronic wasting disease (cwd) outbreak areas in southern wisconsin, USA

Journal of Toxicology and Environmental Health, Part A
By: , and 

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Abstract

Chronic wasting disease (CWD) is a transmissible spongiform encephalopathy affecting North American cervids. Because it is uniformly fatal, the disease is a major concern in the management of white-tailed deer populations. Management programs to control CWD require improved knowledge of deer interaction, movement, and population connectivity that could influence disease transmission and spread. Genetic methods were employed to evaluate connectivity among populations in the CWD management zone of southern Wisconsin. A 576-base-pair region of the mitochondrial DNA of 359 white-tailed deer from 12 sample populations was analyzed. Fifty-eight variable sites were detected within the sequence, defining 43 haplotypes. While most sample populations displayed similar levels of haplotype diversity, individual haplotypes were clustered on the landscape. Spatial clusters of different haplotypes were apparent in distinct ecoregions surrounding CWD outbreak areas. The spatial distribution of mtDNA haplotypes suggests that clustering of the deer matrilineal groups and population connectivity are associated with broad-scale geographic landscape features. These landscape characteristics may also influence the contact rates between groups and therefore the potential spread of CWD; this may be especially true of local disease spread between female social groups. Our results suggest that optimal CWD management needs to be tailored to fit gender-specific dispersal behaviors and regional differences in deer population connectivity. This information will help wildlife managers design surveillance and monitoring efforts based on population interactions and potential deer movement among CWD-affected and unaffected areas. Copyright ?? Taylor & Francis Group, LLC.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Diversity and distribution of white-tailed deer mtdna lineages in chronic wasting disease (cwd) outbreak areas in southern wisconsin, USA
Series title Journal of Toxicology and Environmental Health, Part A
DOI 10.1080/15287394.2011.618980
Volume 74
Issue 22-24
Year Published 2011
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Toxicology and Environmental Health, Part A
First page 1521
Last page 1535