メキシコで越冬する蝶「オオカバマダラ」6割近く減少 気候変動など影響か
Monarch butterflies, a butterfly that winters in Mexico, have decreased by nearly 60%, perhaps due to climate change
Monarch butterflies, a butterfly that winters in Mexico, have decreased by nearly 60%, perhaps due to climate change
毎年、メキシコ中西部で越冬するチョウ「オオカバマダラ」の数が、今年は大幅に減っていることが分かりました
It has been found that the number of monarch butterflies that winter in central and central Mexico every year has decreased significantly this year.
It has been found that the number of monarch butterflies that winter in central and central Mexico every year has decreased significantly this year.
気候変動の影響の可能性があります
Possible effects of climate change
Possible effects of climate change
メキシコ中西部にある森林地帯
Forest area in central and central Mexico
Forest area in central and central Mexico
毎年2月ごろになると、カナダやアメリカからチョウの「オオカバマダラ」が何千キロもの距離を飛び、繁殖と冬を越すためにここに集まります
Every year around February, Monarch butterflies from Canada and the United States fly thousands of kilometers to come here to breed and spend the winter.
Every year around February, Monarch butterflies from Canada and the United States fly thousands of kilometers to come here to breed and spend the winter.
今年はその数が例年に比べ、6割近くも減少していると専門家は指摘しています
Experts have pointed out that this year, the number has decreased by nearly 60% compared to previous years.
Experts have pointed out that this year, the number has decreased by nearly 60% compared to previous years.
メキシコ国家保護地域委員会のディレクター
「繁殖地や移動ルートでの気候変動や干ばつ、高温に関係があります」
森林の伐採や火災による森林面積の消失も「オオカバマダラ」の減少に大きく影響しているということです