首页
登录
职称英语
Northern marshes are being turned into empty, desecrated mud flat wasteland.
Northern marshes are being turned into empty, desecrated mud flat wasteland.
游客
2023-12-18
9
管理
问题
Northern marshes are being turned into empty, desecrated mud flat wasteland. The culprit? Snow geese.
These marshes are the breeding ground for snow geese. Once destroyed, some fear the species will take over the habitat of the Canada goose — a popular game bird in Minnesota. If this happens, Minnesota hunting and land conditions could be greatly affected.
The snow goose population has been on the rise in the last 25 years, but numbers are hitting an all-time high. This year there is an estimated 4.5 or 6 million birds, triple what the population was 25 years ago.
Although effects of the snow goose invasion aren’t apparent in Minneapolis, northern Minnesota and Canada can clearly see the signs. The population growth is due to the birds’ wintering habits. They fly south to Louisiana, Texas and Mississippi to nest. The conditions and food availability there have made it possible for more birds to survive the winter and make the trip back north. The period over which they’ve increased in number correlates to a change in agriculture practices in the region.
After World War Ⅱ, there was an increase in man-made fertilizers, yielding an increase of corn, rice, wheat and other crops. There have also been other changes in agricultural practices causing an increase of production in cereal crops.
The geese find the agricultural areas better than the natural areas. The geese have escaped from any natural limits. They are not doing this on their own; it is in response to human practices.
Usually, about 70 to 75 percent of the birds make it back to Canada in late winter and early spring. But the surviving number of snow geese has steadily climbed each year to reach 95 percent in the last couple of years. Because so many survive, they strip the capacity of the breeding ground.
The snow geese are destroying salt marshes where they nest in the summer, about 30 percent of the salt marshes are completely destroyed, leaving them as inhabitable mud flats. Another 35 percent of salt marshes are significantly damaged.
There are three possible solutions: Let the problem take care of itself and wait for the population to crash, deal directly with the population by changing hunting limits and regulations or address the cause of the problem in the south. [br] The author seems to imply that ______.
选项
A、humans are responsible for the problem
B、hunting limits and regulations should be lifted
C、the birds have a strong capability to survive
D、the Canada geese are a better species than the snow geese
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3284192.html
相关试题推荐
1FredCookeofSalfordturned90twodaysagoandtheworldhasbeenbeatin
Edinburghisin______.A、WalesB、ScotlandC、NorthernIrelandD、IrelandB
"Andthishereolddog,"hecontinued,touchingTally’supturnednosewithhi
[originaltext]FightingflaredyesterdayinnorthernandsouthernBosnia,pit
Inthelate1960smanypeopleinNorthAmericaturnedtheirattentiontoenvi
Inthelate1960smanypeopleinNorthAmericaturnedtheirattentiontoenvi
NorthernIrelandiswellknownintheUnitedKingdommainlyforits______.A、pol
WhereisLakeLouiselocated?A、InthenorthernpartofCanada.B、OntheCanadian
[originaltext]TornadoessweptthroughnorthernBangladesh,killingatleast
[originaltext]TornadoessweptthroughnorthernBangladesh,killingatleast
随机试题
TownXhas50,000residents,someofwhomwereborninTownX.Whatpercentoft
TheCinemaThefirstmovingpictures,developedi
玻璃体与视网膜连接不紧密的区域是A.视盘边缘 B.黄斑中心凹周围 C.玻璃体
标记蛋白质巯基的活化生物素是A.N-羟基丁二酰亚胺酯(BNHS)B.生物素酰肼(
选择紫外线进行室内消毒时,每m3空间安装紫外线灯的瓦数应()。A.≥1.0W
患者,男性,62岁,因心房颤动住院治疗,心率114次/分,心音强弱不等,心律不规
通过信息宣传去教育、动员、调动群众的积极性,将党和国家的方针、政策、法律、法规、
除圆管涵和箱涵外,单孔跨径小于( )的泄水或通行的小型构造物是涵洞。A.5m
男,38岁,3年反复腹泻,脓血便,伴便前腹痛,便后缓解上述病例最大可能诊断为
非预激综合症的器质性心脏病患者伴心室率增快或心功能不全时,需立即用药,首选(
最新回复
(
0
)