- 著者
- Hiroyuki Matsuyama
- 出版者
- Arachnological Society of Japan
- 雑誌
- Acta Arachnologica (ISSN:00015202)
- 巻号頁・発行日
- vol.72, no.2, pp.101-107, 2023-12-10 (Released:2023-12-10)
Understanding the hard tick (Acari: Ixodida) fauna of the Iriomote cat (Prionailurus bengalensis iriomotensis Imaizumi 1967), an endangered species, is important for ecosystem conservation. However, there are no comprehensive reports on this topic. In this study, literature on the composition of tick species infesting Iriomote cats between 1975 and 2012 were compared. This study also reviewed on tick-borne pathogens found on Iriomote Island. Ticks Amblyomma testudinarium Koch 1844, Haemaphysalis hystricis Supino 1897, Haemaphysalis longicornis Neumann 1901, and Asiatic blue ticks (Rhipicephalus [Boophilus] microplus Canestrini 1888) were identified from Iriomote cats. Asiatic blue ticks were identified in 1975 and 1983–1985, whereas H. longicornis was identified from Iriomote cats for the first time in 2011–2012. Amblyomma testudinarium and H. hystricis were identified from Iriomote cats throughout the study period. Gene fragments of Anaplasma bovis Dumler et al. 2001, Babesia gibsoni Patton 1910, Bartonella henselae Brenner et al. 1993, Ehrlichia canis Donatien and Lestoquard 1935, Hepatozoon felis Patton 1908, and Candidatus Mycoplasma haemominutum were detected in ticks and/or animals such as domestic dogs (Canis lupus familiaris Linnaeus 1758), domestic cats (Felis catus Linnaeus 1758) and Iriomote cats on Iriomote Island. However, because the same genotypes of tick-borne pathogens were unknown or have not been detected in animal and tick species, the transmission network of tick-borne pathogens between hosts and ticks on Iriomote Island is unknown. Further studies are needed to understand the network structure of host-tick-pathogens on Iriomote Island, based on accurate identification of the pathogen genotype, and the risk of tick-borne pathogens in the Iriomote cat.
- 著者
- Hiroyuki MATSUYAMA Masakatsu TAIRA Maki SUZUKI Eiichiro SANDO
- 出版者
- JAPANESE SOCIETY OF VETERINARY SCIENCE
- 雑誌
- Journal of Veterinary Medical Science (ISSN:09167250)
- 巻号頁・発行日
- vol.82, no.11, pp.1666-1670, 2020 (Released:2020-12-05)
- 参考文献数
- 47
- 被引用文献数
- 4 8
Populations of large mammals have been dramatically increasing in Japan, resulting in damage to agriculture, forestry, and ecosystems. However, their effects on tick-borne diseases have been poorly studied. Here, we focused on the relationship between Japanese spotted fever (JSF), a tick-borne disease caused by Rickettsia japonica, and populations of large mammals. To explore factors that affected the area in which JSF cases occur, we used generalized linear mixed models (GLMMs). We demonstrated that the expansion of the area of JSF occurrence can be predicted by deer density and geographical factors, which is likely due to differences in landscape structure. However, the associated models have limitations because of the lack of information about the distribution of vectors and reservoirs. To reduce the risk of humans contracting JSF, potential reservoirs should be confirmed.