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Researchers: Bees Help Kenyan Farmers Fend1 Off Elephants 蜜蜂助肯尼亚农民驱赶象群
VOI, KENYA—
African elephants are the largest land animals on Earth, weighing as much as six tons, and measuring up to 7.5 meters long.
But despite their size, they find humans to be their greatest threat: Tens of thousands of these animals are killed every year for their ivory tusks2.
Researcher Lucy King, head of the human-elephant coexistence program at Kenya-based conservation group Save the Elephants, said poaching is devastating3 animal populations across Africa.
But another major concern is human-wildlife conflict.
When elephants raid crops, it causes financial loss to the farmers and potential harm to the elephants.
'Increasing exponentially'
“The population in Africa is increasing exponentially, and the land space for elephants and other large game is shrinking exponentially,” King said. “Corridors are being blocked, infrastructure4 development is coming up, and so I believe the next big challenge for elephants is going to be conflict.
"And that interface5 between farmers and elephants is the one we’re working on, and we feel we can do something with," she said.
So she did.
King learned that when elephants heard the distinctive6 sound of bees, they rounded up their herd7 and quickly moved away.
Local farmers attested8 that despite the elephants’ thick skin, bees could still sting around their eyes and disturb their ears, causing them to shy away when they heard buzzing.
And the Elephants and Bees Project was born.
King and her team work near in the Taita-Taveta area of Kenya, near Tsavo East National Park, where they’ve helped 22 farmers build and maintain beehive fences, consisting of between 10 and 21 hives, depending on the size of the farmer’s plot, plus “dummy” hives to help spread out the bee concentration.
The hives are strung along the periphery11 of a farmer’s crops to deter9 the elephants from crop raiding.
The team monitors each farmer’s hives carefully, taking notes on each one and also working with the farmers to determine the elephants’ movements in the area.
King says a beehive fence features a critical difference from an electric fence.
“Electric fencing provides a shock to the body, but it’s static. So the elephants can learn, 'If I touch that, it’s going to hurt.' But they can test it, they can put their bodies against it, they can push their feet on the posts, and eventually they can work out, one quick shove and the fence will go down,” King said. “But the fence doesn’t chase them afterwards.”
Local farmer Charity Mwangome, who built her fence in 2012, believes the research buzz.
“It helps a lot because if the elephants come in and they see the fence, they stop and don’t come into the farm. They instead go around," Mwangome said.
But the beehive fence, which King said has about an 80 percent success rate, doesn’t just help with keeping out the elephants. It also provides farmers with another means to generate income, through honey production.
Boost to income
And for farmers who make on average $300 per year, less than a dollar a day, the 30 to 50 percent income boost makes a big difference.
Research center coordinator12 Matthew Rudolph said the biggest problem is just keeping up with consumer demand for the honey, which he and other staff members process at its center here.
“People pick it up as soon as it is jarred,” Rudolph said.
And it goes fast, Rudolph and King said.
The center typically harvests the honey twice a year -- in January and May -- and produces about 500 jars. However, requests worldwide far exceed the production, the researchers said.
King said the priority is to first supply local markets so word about the beehive fences will spread.
An open-source manual for constructing a beehive fence can be found on the group’s website.
King said she has received comments from people in at least 11 African and Asian countries who have used the plans to build their own beehives, adapting them to local conditions.
Poaching issue
Although this project helps combat human-wildlife conflict, poaching remains13 the No. 1 threat to elephants.
Kenya President Uhuru Kenyatta will host this month’s Giants Club Summit, which will bring dignitaries together at Mount Kenya to find solutions to combat the crisis.
Organizers expect presidents from four African countries -- Botswana, Gabon, Kenya and Uganda -- and their representatives to attend the event, to be held Thursday through Saturday.
The event will conclude in Nairobi Saturday with the destruction of 105 tons of seized ivory to prevent its economic use.
1 fend | |
v.照料(自己),(自己)谋生,挡开,避开 | |
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2 tusks | |
n.(象等动物的)长牙( tusk的名词复数 );獠牙;尖形物;尖头 | |
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3 devastating | |
adj.毁灭性的,令人震惊的,强有力的 | |
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4 infrastructure | |
n.下部构造,下部组织,基础结构,基础设施 | |
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5 interface | |
n.接合部位,分界面;v.(使)互相联系 | |
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6 distinctive | |
adj.特别的,有特色的,与众不同的 | |
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7 herd | |
n.兽群,牧群;vt.使集中,把…赶在一起 | |
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8 attested | |
adj.经检验证明无病的,经检验证明无菌的v.证明( attest的过去式和过去分词 );证实;声称…属实;使宣誓 | |
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9 deter | |
vt.阻止,使不敢,吓住 | |
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10 deterrent | |
n.阻碍物,制止物;adj.威慑的,遏制的 | |
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11 periphery | |
n.(圆体的)外面;周围 | |
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12 coordinator | |
n.协调人 | |
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13 remains | |
n.剩余物,残留物;遗体,遗迹 | |
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