ハワイで蚊を空からまいて鳥を守る新しい方法

A new new way to protect bird catching by spreading mosquitoes from the sky in Hawaii

A new new way to protect bird catching by spreading mosquitoes from the sky in Hawaii
ハワイでは、毎週50万匹の特別な蚊をドローンやヘリコプターで森にまいています

In Hawaii, we pour 500,000 special mosquitoes into the forest every week by drones and helicopters.

In Hawaii, we pour 500,000 special mosquitoes into the forest every week by drones and helicopters.
この蚊は実験室で育てられたオスだけで、「ボルバキア」という細菌に感染しています

This mosquito is only males grown in the laboratory and are unable to infect a bacterial species called Wolbachia.

This mosquito is only males grown in the laboratory and are unable to infect a bacterial species called Wolbachia.
このオスの蚊が野生のメスと交尾しても、卵はかえりません

Even if this male mosquito mates with a wild female, the eggs don't return.

Even if this male mosquito mates with a wild female, the eggs don't return.
こうして蚊の数を減らし、鳥を守ろうとしています

This is how we try to reduce the number of mosquitoes and protect bird catching.

This is how we try to reduce the number of mosquitoes and protect bird catching.
ハワイには「ハワイミツスイ」という大切な鳥がいますが、今は絶滅の危機です

There is a precious bird catch called Hawaii Mitsusui, but now it is at risk of extinction.

There is a precious bird catch called Hawaii Mitsusui, but now it is at risk of extinction.
蚊が持ってくる「鳥マラリア」という病気が大きな原因です

The disease bird-catching malaria that mosquitoes carry is a major cause.

The disease bird-catching malaria that mosquitoes carry is a major cause.
昔、ハワイにはたくさんのハワイミツスイがいましたが、今は17種類しか残っていません

There were many Hawaiian sweetfish in Hawaii, but now there are only 17 types of sweetfish left.

There were many Hawaiian sweetfish in Hawaii, but now there are only 17 types of sweetfish left.
蚊はもともとハワイにいませんでしたが、約200年前に船で来たと言われています

Mosquitoes were not originally in Hawaii, but it is said that they came by boat about 200 years ago.

Mosquitoes were not originally in Hawaii, but it is said that they came by boat about 200 years ago.
気温が高くなると、蚊は山の上にも行くようになり、鳥の住む場所が少なくなっています

As the temperature rises, mosquitoes and other animals begin to go up on the mountains, and the number of places where birds live is less common is reduced.

As the temperature rises, mosquitoes and other animals begin to go up on the mountains, and the number of places where birds live is less common is reduced.
殺虫剤を使うと、他の大事な虫にも悪い影響があります
そのため、ボルバキアを使った方法が選ばれました
今はマウイ島とカウアイ島で実験が行われています
もしこの方法がうまくいけば、鳥の数が増え、将来また自然に戻せる鳥も出てくるかもしれません
専門家たちは、今がハワイミツスイを守る最後のチャンスだと考えています