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Dynamics of tick infestations in foxes in Thuringia, Germany
Elisabeth Meyer-Kayser1, Lothar Hoffmann, Cornelia Silaghi
1Thüringer Landesamt für Lebensmittelsicherheit und Verbraucherschutz (TLLV), Bad Langensalza, Germany.
Ticks and Tick-Borne Diseases
|August 14, 2012
Summary
Foxes in Thuringia experience year-round tick infestations, primarily by Ixodes ricinus, Ixodes canisuga, and Ixodes hexagonus, with seasonal patterns observed for different tick species and life stages.
Area of Science:
- Veterinary Entomology
- Wildlife Parasitology
- Mammalian Ecology
Background:
- Tick infestations in foxes pose a significant concern for wildlife health and disease transmission.
- Previous data on tick dynamics in Thuringia foxes was outdated, necessitating current research.
Purpose of the Study:
- To investigate the current prevalence and seasonal dynamics of tick infestations on foxes in Thuringia.
- To identify key tick species and their developmental stages affecting foxes.
Main Methods:
- Examination of fox carcasses submitted to the Thuringian State Authority for Food Safety and Consumer Protection (TLLV) between January 1st and December 31st, 2009.
- Collection, storage, identification, and classification of all collected ticks by developmental stage and sex.
- Statistical analysis to determine infestation rates and seasonal variations.
Main Results:
- Over 76% of 1286 examined foxes were infested with ticks, yielding 13,227 ticks.
- Larvae (48.1%) were the most prevalent developmental stage, followed by adults (34.1%) and nymphs (17.8%).
- Ixodes ricinus dominated adult tick populations (82.2%), while Ixodes canisuga and Ixodes hexagonus were more prevalent in nymphs and likely larvae.
Conclusions:
- Foxes in Thuringia are subject to year-round tick infestations, with distinct seasonal activity patterns for different tick species.
- Ixodes ricinus infestation peaks from April to September, particularly in adults, whereas Ixodes canisuga and Ixodes hexagonus infestations are higher in colder months, especially with immature stages.
