年２２％減少も

＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊「里の雀や蝶『絶滅危惧』水準に」（１０月３日付け東京新聞［朝刊］）全国各地で自然の長期的な変化を調べる環境省の調査で、里山や里地に居る鳥や蝶等、身近な生物の個体数が急速に減っている事が判った。１年間で個体数が２２％減少した種も在り、絶滅危惧種に相当する水準。希少種では無 . . . 本文を読む