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Helminths in ruffed grouse at the host's southeastern range boundary
P I Kalla1, R W Dimmick, S Patton
1United States Environmental Protection Agency, Wetlands Section, Atlanta, GA 30303-3104, USA.
Journal of Wildlife Diseases
|July 1, 1997
Summary
This study examined ruffed grouse (Bonasa umbellus) in Tennessee for helminths. Heterakis bonasae and Echinolepis carioca were common, with infection influenced by host age, sex, condition, and collection time.
Area of Science:
- Veterinary Parasitology
- Wildlife Ecology
- Avian Health
Background:
- Non-filarioid helminths can impact wild bird populations.
- Understanding parasite prevalence is crucial for wildlife management.
Purpose of the Study:
- To identify and quantify non-filarioid helminth infections in ruffed grouse (Bonasa umbellus).
- To investigate factors influencing parasite prevalence and intensity.
Main Methods:
- Examination of 268 ruffed grouse carcasses collected in eastern Tennessee (1983-1988).
- Identification of nematode and cestode species, with prevalence and intensity recorded.
Main Results:
- Three nematode and one cestode species were identified.
- Heterakis bonasae (81% prevalence) and Echinolepis carioca (27% prevalence) were most common.
- Host age, sex, condition, and collection time significantly affected infection rates.
Conclusions:
- Ruffed grouse in eastern Tennessee harbor significant helminth infections.
- Host and environmental factors play a key role in parasite dynamics within this species.