Monitoring relative abundance index and age ratios of wild boar (<i>Sus scrofa</i>) in small scale population in Gifu prefecture, Japan during classical swine fever outbreak
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- IKEDA Takashi
- Research Center for Wildlife Management, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
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- ASANO Makoto
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
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- KUNINAGA Naotoshi
- Research Center for Wildlife Management, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
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- SUZUKI Masatsugu
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
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Abstract
<p>Although the first cases of classical swine fever were reported in 2018, no studies have explored this impact on wild boar populations in Japan. Comparing the relative abundance indices and age ratios in the wild boar population before and after the outbreak, we investigated the impact of classical swine fever virus on wild boar population dynamics in August 2017–December 2019. Relative abundance indices declined from 2017 to 2019 drastically, while there were no significant differences in age ratios throughout the study period. Consequently, wildlife managers should consider that wild boars continue to contract classical swine fever virus, and they should intensively implement countermeasures in agricultural lands and in pig farms, in addition to wild boar population management.</p>
Journal
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- Journal of Veterinary Medical Science
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Journal of Veterinary Medical Science 82 (6), 861-865, 2020
JAPANESE SOCIETY OF VETERINARY SCIENCE
