Seasonal Infestation Patterns of Ticks on Hokkaido Sika Deer ()

Overview

Journal Parasitology

Specialty Parasitology

Date 2024 Nov 14

PMID 39542860

Authors

Kotaro Shimizu

Michito Shimozuru

Masami Yamanaka

Genta Ito

Ryo Nakao

Toshio Tsubota

Affiliations

Soon will be listed here.

Abstract

Ticks prefer specific feeding sites on a host that are influenced by host–tick and tick–tick interactions. This study focused on the spatiotemporal distribution of ticks in Hokkaido sika deer, an important tick host in Hokkaido, Japan. Tick sampling was performed on the sika deer in the Shiretoko National Park between June and October 2022. Ticks were collected from 9 different body parts of the deer to compare their attachment site preferences. Interspecific and intraspecific relationships among ticks were examined using co-occurrence analysis. The collected ticks were nymphal and adult stages of 4 species: , , and . Seasonal variations in tick burden were observed, with and peaking in June and declining towards October; showing low numbers in July and August and increasing from September; and appearing from September onwards with little variation. Attachment site preferences varied among species, with a significant preference for the pinna in and . was mainly found on the body and legs between June and August, and shifted to the pinna from September. showed a general preference for areas other than the legs. Co-occurrence analysis revealed positive, negative and random co-occurrence patterns among the tick species. Ticks of the same genus and species exhibited positive co-occurrence patterns; showed negative co-occurrence patterns with spp. This study revealed the unique attachment site preferences and distinct seasonal distributions of tick species in the Hokkaido sika deer.

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