On the other hand, Japanese deer, whose number has increased due to the warm winter trend in recent years, generated the following problem: they caused serious food-related damage because they ate out all the young tree buds and undergrowth through spring to summer.
一方で、被害に拍車をかけるように近年の暖冬傾向によってニホンジカの個体が増加、春から夏にかけて木々の若芽や下草を食べつくすという食害がひどくなっていった。