Ecology and phenology of the bat tick () (Acari: Argasidae).

Parasitology

Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan.

Published: November 2024

Although 12 soft tick species (Argasidae) are native to Australia, the ecology of most is poorly known. parasitizes several insectivorous bat species and has been recorded on humans. Therefore, understanding its ecology is crucial for wildlife health management and public health preparedness. To address this knowledge gap, populations were monitored from 2 bat hosts ( and ) using bat boxes at 3 sites in Victoria, Australia, for 28 months (July 2005–December 2007). A phenological profile undertaken for revealed that tick load on bat hosts increased throughout winter and peaked in the first month of spring, before collapsing and remaining low throughout the drier late spring and summer periods. There was also further investigation of the relationship between 2 response variables (tick infestation risk and tick load) and a range of explanatory variables (body condition index, sex, age class, bioseason, site, bat density per nest box). In , site was the only significant predictor of infestation risk, while load was correlated with several variables including age class, sex, bioseason, roost density and body condition index. This paper also reports the first records of from 6 bat species in 3 bat families (Miniopteridae: ; Molossidae: ; Vespertilionidae: , , , ) and a second record of from a human. The first distribution records are presented for in South Australia, the Australian Capital Territory and Queensland.

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http://dx.doi.org/10.1017/S0031182024000817DOI Listing

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