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Journal of Parasitology Research
Volume 2011, Article ID 306257, 9 pages
Research Article

Helminth Community Dynamics in Populations of Blue-Winged Teal (Anas discors) Using Two Distinct Migratory Corridors

1Caesar Kleberg Wildlife Research Institute, Texas A&M University-Kingsville, Kingsville, TX 78363, USA
2Department of Biology, Lake Superior State University, 650 W. Easterday Avenue, Sault Ste. Marie, MI 49783, USA
3Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX 77843, USA
41616 Blackburn Fork Road, Cookeville, TN 38501, USA

Received 2 November 2010; Revised 12 January 2011; Accepted 4 February 2011

Academic Editor: Benjamin M. Rosenthal

Copyright © 2011 Jason M. Garvon et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The influence of spatially distinct host subpopulations on helminth community structure and pattern was examined in a migratory avian host species. Forty helminth species represented by 24,082 individuals were collected from 184 blue-winged teal (Anas discors; BWT) from 2 primary migratory corridors in Florida (eastern migratory corridor; EMC) and Louisiana and Texas (western migratory corridor; WMC). Mean species richness was greater in BWT from the WMC ( species) than the EMC (8.6 ± 0.2). The helminth community from the WMC had higher abundances of 6 common/intermediate species. Corridor helminth communities were similar in species composition but less similar when incorporating abundances of those species. Overlapping distributions of phylogenetically related host species that share generalist helminth species across ecologically similar habitats seem to mitigate the isolating mechanisms that are necessary for the distinct coevolutionary pathways to develop between adjacent corridors.