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
28
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] 【L6】
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
marine ecosystems
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3315209.html
相关试题推荐
[originaltext]A:Socialmediahasbecomeanimportantpartofeverysinglepers
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
随机试题
HowtoStudyEnglishinYourDream:theTheoryI.Introduction
Whatshouldwedofirstwhenwemakemistakes?Weshouldacknowledgeit______.[
[originaltext]Haveyoualwayswantedtoinvest,butdidn’tknowwheretogetst
Itiscommonlyheldthatdrinkingmoderateamountsofalcoholcanreducethe
AsanimmigranttoNorthAmerican,youwillneedtoensurethatemployersan
PT正常,APTT延长.最可能是缺乏A.因子Ⅻ、Ⅷ B.因子Ⅷ、Ⅸ、Ⅺ C.
关于估计现金流量应当考虑的问题中说法错误的是()。A.必须考虑现金流量的总量
关于痛经,下列说法正确的是:()A.凡月经前后或行经期间有腰酸、下腹
根据下列统计资料回答问题 2015年7月,D市共监测电视、广播、平面和重点网络
(2016年真题)关于中标人法律责任的说法,正确的是()。A.中标人将中标项
最新回复
(
0
)