首页
登录
职称英语
Arctic Conditions for Polar Bears Arctic conditions may become critical for p
Arctic Conditions for Polar Bears Arctic conditions may become critical for p
游客
2023-12-29
9
管理
问题
Arctic Conditions for Polar Bears
Arctic conditions may become critical for polar bears by end of 21st century.
Shifts in the 【L1】______ of ice cover, especially the possible lengthening of 【L2】______, may impact polar bears under projected warming before the end of the 21st century, 【L3】______a study published recently in the 【L4】______PLOS ONE by Stephen Hamilton from University of Alberta and colleagues.
Sea ice across the Arctic is 【L5】______ and altering physical characteristics of 【L6】______, and polar bears are 【L7】______to these changes in sea ice conditions. The authors of this study used 【L8】______for the Canadian Arctic Archipelago from 2006-2100 and metrics 【L9】______ polar bear energetics modeling 【L10】______ the conservation challenges for polar bears facing 【L11】______.
Shifts 【L12】______ multiyear ice to annual ice cover 【L13】______ the region, 【L14】______ lengthening ice-free periods, may become 【L15】______ for polar bears 【L16】______the 21st century with projected warming. Each polar bear 【L17】______in the Archipelago may undergo 2-5 months of 【L18】______, where no such conditions exist presently. Under business-as-usual climate projections, polar bears may face starvation and 【L19】______across the entire Archipelago by the year 2100. "We predict that nearly one-tenth of the world’s polar bear habitat, as much as one-quarter of their global population, may undergo 【L20】______habitat loss under business-as-usual climate projections," said Stephen Hamilton. [br] 【L7】
Arctic Conditions for Polar Hears
Arctic conditions may become critical for polar bears by the end of 21st century.
Shifts in the timing and duration of ice cover, especially the possible lengthening of ice-free periods, may impact polar bears under projected warming before the end of the 21st century, according to a study published recently in the open-access journal PLOS ONE by Stephen Hamilton from University of Alberta and colleagues.
Sea ice across the Arctic is declining and altering physical characteristics of marine ecosystems, and polar bears are vulnerable to these changes in sea ice conditions. The authors of this study used sea ice projections for the Canadian Arctic Archipelago from 2006-2100 and metrics developed from polar bear energetics modeling to gain insight into the conservation challenges for polar bears facing habitat loss.
Shifts away from multiyear ice to annual ice cover throughout the region, as well as lengthening ice-free periods, may become critical for polar bears before the end of the 21st century with projected warming. Each polar bear population in the Archipelago may undergo 2-5 months of ice-free conditions, where no such conditions exist presently. Under business-as-usual climate projections, polar bears may face starvation and reproductive failure across the entire Archipelago by the year 2100. "We predict that nearly one-tenth of the world’s polar bear habitat, as much as one-quarter of their global population, may undergo significant habitat loss under business-as-usual climate projections," said Stephen Hamilton.
选项
答案
vulnerable
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3315210.html
相关试题推荐
Dolphins,thoughusuallyfriendly,canbecomeoffensivewhenthreatened.A、violen
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
Beingcriticalanddictatorial,thebosswould_________discussionsandignoreco
Computer________willbecomemorewidespreadasmoreschoolsaddcomputerclasses
下面你将听到一段有关“废水利用”的内容。//Asfreshwaterbecomesincreasinglyscarcedueto
[originaltext]A:Socialmediahasbecomeanimportantpartofeverysinglepers
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
随机试题
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmun
UsefulInformationaboutBeijin
TheHistoryofEarlyCinemaA)Thehistoryofthecinema
[originaltext]Somecountriesmayhaveoneuniformfishinglawcoveringthe
环形线圈车辆检测器测速误差为()。A.±(1-2)% B.±2% C.±3%
患者,女性,因急性阑尾炎行外科手术治疗,术中发现阑尾有一微黄色硬结状肿瘤,直径在
人力不可抗拒灾害主要是指自然灾害,由这类灾害造成的损失应由(),也是常见的工程索
下列属于公民的人身自由权的有( )。 A.住宅不受侵犯的权利 B.通信自由
下列各项中,不构成合同中履约义务的有()。A.甲公司在销售商品的同时提供可对外销
(2021年真题)出料容量为200L的干混砂浆罐式搅拌机,每一次工作循环中,运料
最新回复
(
0
)