[Ticks on lemmings in the eastern Taimyr]

Area of Science:

• * Parasitology
• * Arctic ecology
• * Mite taxonomy

Context:

• * Lemmings are key Arctic rodents with significant ecological roles.
• * Mites are common ectoparasites and potential disease vectors in rodent populations.
• * East Taimyr is a critical region for Arctic biodiversity research.

Purpose:

• * To document mite fauna associated with lemmings in East Taimyr.
• * To investigate mite distribution patterns in lemming nests and on lemming hosts.
• * To assess the role of mites in the epizootiology of transmissible diseases in lemmings.

Summary:

• * Thirteen mite taxa were identified in association with lemmings and their nests in East Taimyr.
• * Dominant mite species include Parsitus (Eugamasus) sp., L. lemmi, Hg. ambulans, and H. isabellinus.
• * Irregular mite distribution in nests suggests conditions favorable for pathogen circulation, while regular host distribution indicates population mixing and agent dissemination.
• * The presence of egg-laying females on hosts, but not in nests, indicates an epizootic life cycle for Hg. ambulans and H. isabellinus in northern areas.

Impact:

• * Provides baseline data on mite-host associations in Arctic rodents.
• * Highlights the potential role of mites in disease transmission dynamics within lemming populations.
• * Informs future research on Arctic ecosystem health and disease ecology.