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バーチャルフェンス:農場と自然に良い?

Virtual fences: good for farms and nature?

従来の柵と、牛のためのGPSを使ったバーチャルフェンスを比較したVOA Learning Englishの記事の抜粋を読みましょう。

読む前に

一部の農場では、牛がGPS受信機つきの首輪をつけるようになりました。動物が、農家がスマートフォンやコンピューターで引いた見えない線に近づくと、首輪が警告音を出し、その後、弱い電気ショックを与えます。これはバーチャルフェンスと呼ばれます。フロリダ州の牧場主ジム・ストリックランドは、自分が働く土地でこれを使っています。従来の柵と、バーチャルフェンスがもたらすかもしれない利点についてのVOA Learning Englishの記事のこの部分を読みましょう。

rancher名詞
牛などの動物を育てる大きな農場を所有または管理する人The rancher checks his cattle every morning.
grazing名詞
動物が野原で草を食べること。また、そのための土地The hills are used for sheep grazing in summer.
hurricane名詞
特に大西洋西部で起こる、激しい風を伴う非常に強い嵐The hurricane damaged many roofs along the coast.
cell tower名詞
携帯電話の信号を送受信する高い構造物There is no signal here because the nearest cell tower is far away.
nesting形容詞
卵を産み、ひなを育てるために巣を作ったり、巣の上にいたりすることDogs must be kept on a lead near nesting seabirds.

Virtual Fences for Cows Show Benefits

Physical fences take time, labor and money to build. It can be difficult to put them in areas such as rocky and hilly land, wet areas, or places with thick vegetation. Over time, fences need to be fixed or new ones need to be built.

When hurricane Ian hit Florida last year, it destroyed four houses and 45 kilometers of physical fence on the land where Strickland works. But the cell towers for the virtual fence system kept working.

Physical fences can also harm wild animals by making it difficult for them to move within and to areas they need for survival.

The Nature Conservancy (TNC) is a U.S-based environmental non-profit organization. It has partnered with cattle ranches in the states of Kansas, New Mexico and Colorado to research the effects of virtual fencing.

William Burnidge is Deputy Director of TNC’s North America Regenerative Grazing Lands Strategy. He said that by changing fence boundaries, the systems prevent animals from eating too much vegetation within one area. This helps plants regenerate, or grow again.

He added that virtual fences could help protect rare plants and areas near rivers and streams. They could also support conservation of wild animals, improve the health of animals and help ranch workers have a better quality of life.

Strickland works with partners at Florida Conservation Group and the University of Florida. With virtual fences, they can carefully control grazing. This helps them research the effects of grazing patterns on the growth of young cows, birth rates, and even the effects on nesting birds.

練習問題 1/2

文章を理解しましょう

文章を読んで、正しい答えを選んでください。

  1. What does the text say about physical fences?

  2. Where is it especially difficult to put physical fences?

  3. What happened when Hurricane Ian hit Florida?

  4. How can physical fences harm wild animals?

  5. What is The Nature Conservancy?

  6. According to William Burnidge, how do virtual fences help plants?

  7. Burnidge believes virtual fences could improve life for ranch workers.
  8. What do Strickland and his partners study with the help of virtual fences?

8問中0問回答

練習問題 2/2

単語と詳細

最も適切な答えを選ぶか、文章から1語を入力してください。

  1. "places with thick vegetation" Vegetation means ...

  2. The text explains that regenerate means to grow .

  3. TNC "has partnered with cattle ranches". This means it has ...

  4. Virtual fences "could also support conservation of wild animals". Conservation means ...

  5. TNC works with cattle ranches in Kansas, New Mexico and .

  6. The text mentions a better quality of life. This means ...

6問中0問回答

出典

Text excerpt from “Virtual Fences for Cows Show Benefits”, Science & Technology, VOA Learning English, published 2024-03-06. Andrew Smith wrote this story for VOA Learning English. Public domain.

元の記事を見る

Excerpt of 7 consecutive paragraphs. Questions, notes and glossary by Joy English.

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