未登录,请登录后再发表信息
最新评论 (0)
播放视频

最大的北美蝗灾

The Great North American Locust Plague

Locusts是一种蝗虫 – 一种有着不寻常超能力的蝗虫。当它们拥挤在一起出发时
Locusts are grasshoppers – with unusual superpowers. When triggered by overcrowding they literally
它们会变形-会从绿色变为棕色,吃的更多,更加强壮
transform themselves – changing from green to brown, eating more, getting muscular, mating
繁殖能力增强,并且越聚越多 然后他们忘记了害羞的自我
more, and congregating in crowds. Then, their shy alteregos forgotten, they swarm across
挤满了乡村,为了搜索食物,开拓殖民地并根据转移殖民地进行繁殖,就是这样的存在
the landscape, searching for food, colonizing and recolonizing breeding grounds, and being
一般人所讨厌的。地球上有十几种蝗虫种类
a general nuisance. There are about a dozen locust species on
北美只发现了一种:落基山脉蝗虫
Earth, and only one has been found in North America: the Rocky Mountain locust, which
在1850年到1880年间摧毁了整个大平原的庄稼
devastated crops across the Great Plains from 1850 to 1880. The fact that the locusts preferred
蝗虫相较草场牧草更爱庄稼的事实使它们的巨群引起了白人移民的注意
cultivated crops to prairie grasses ensured that their massive swarms caught the attention
尽管真的 蝗虫很难被忽略
of white settlers… though really, the locusts would have been hard to miss.
1875年内布拉斯加洲的一位目击者观测到了一米高的蝗虫潮从头顶经过
One observer in Nebraska in 1875 watched a mile-high stream of locusts pass overhead
持续了整整五天 再加上与周边城镇通电报
for 5 days straight. Together with telegraphed reports from neighboring towns, he estimated
他估计蝗群有110米宽和1800米长 大约是科罗拉多的两倍大
the swarm to be 110 miles wide and 1,800 miles long, roughly twice the size of Colorado.
在爆发的最高峰 蝗虫吃掉了他们道路上的所有粮食 以及 据报道
During the biggest outbreaks, locusts consumed all crops in their path, as well as, reportedly,
篱笆桩 皮革 和羊身上的毛 这对美国西部和加拿大是个巨大的挑战
fence posts, leather, and the wool off of sheep. They were such a challenge to the settlement
他们支付给猎人一蒲式耳蝗虫尸体100美金的优渥奖金
of the western US and Canada that bounty hunters were paid as much as $100 per bushel of dead
并且移民摧毁了他们的繁殖地
grasshoppers, and settlers dynamited their breeding grounds.
当这些方法相较于成功更多是心理安慰时
While these methods may have been more satisfying than successful, ultimately the settlers did
最后移民只得控制落基山脉蝗虫 事实上他让它们偶然地灭亡了
end up controlling the Rocky Mountain Locusts. In fact, they made them go extinct. By accident.
蝗虫 就像移民 需要进食和繁殖 尤其在爆发蝗灾时
Locusts, like settlers, need to eat AND reproduce. And after outbreaks, locust populations typically
蝗虫会退回他们在北落基山脉的村庄里的永久繁殖地
retreated back to their permanent breeding grounds in the valleys of the northern Rockies
以下卵
to lay their eggs.
然而因为这些河边洼地非常繁茂 有大量的水分
However, because these river bottomlands were fertile and had plenty of water, they were
这基本上也是前线的农场和大农场的定居地 结果是犁 牲畜
also prime locations for pioneer farms and ranches. It turns out that plows, livestock
和灌溉技术擅长摧毁蝗虫的卵 和蝗虫关键的蛹居地
and irrigation excel at destroying locust eggs and crucial locust nymph habitat.
在19世纪90年代间 蜂拥而至的白人移民占领了如此多的西方河边洼地
By the 1890s, swarming white settlers had covered so much western river bottomland that
蝗虫无法达到数量和规模以转换成他们加了buff的另一个自我
the locusts weren’t able to attain the numbers or density needed to transform into their
他们也不再聚群 这些巨虫在短短30年间
buff alteregos, and they never swarmed again. The disappearance of these super bugs less
由几乎吃尽了整个大平原的庄稼到消失
than 30 years after they nearly ate agriculture off the Great Plains, is most likely the only
更可能在农业历史上唯一一个害虫物种的消失 因为 结果表明 农业
extinction of a pest species in the history of agriculture. Because, it turns out, agriculture
那是他们的克星
was their kryptonite.

发表评论

译制信息
视频概述
听录译者

收集自网络

翻译译者

收集自网络

审核员

自动通过审核

视频来源

https://www.youtube.com/watch?v=aQ804ztWPNs

相关推荐