猟法の違いがイノシシ捕獲個体の齢比と成獣の性比に与える影響

抄録

 Hunting statistics provide valuable information for planning and conducting appropriate ungulate management. We compared the age- and adult sex-ratios of three wild boar sub-populations under three hunting methods (box trap, snare trap, and gun) using hunting statistics collected by Tochigi prefecture between FY1997 and FY2013. These sub-populations are genetically distinct, and differed in each distributed period. In all regions, the ratios of adult wild boar hunted by gun and captured by snare trap were higher than that by box trap. Furthermore, in all regions, there were no differences in adult sex ratios among all hunting methods. Selective hunting techniques for adult wild boar might exist in gun and snare trap hunting. An analysis of hunting methods using long-term hunting statistics is necessary for future wild boar management with limited funds and hunting effort.