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
27
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] 【L19】
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
reproductive failure
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3315222.html
相关试题推荐
Dolphins,thoughusuallyfriendly,canbecomeoffensivewhenthreatened.A、violen
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
Althoughhehasbecomerich,heisstillvery_________ofhismoney.A、economicB、
[originaltext]Originallyjustanovelty,televisionhasbecomethemostimp
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
TodayI’dliketotalkabouthowtobecomea(1).Usuallyyouhavetostart
随机试题
()外部环境()托运单[br]()工业产权()注册申请号I、C
"IfpeoplearenotpayingattentionintheTempleofDendur,theycanendupin
Populationagingisatriumphofcivilization.Itisthe【C1】______consequenc
沉香源于哪一科的植物A.罂粟科 B.瑞香科 C.木兰科 D.十字花科
()是指客观的刺激作用于人们的大脑所引起的个体缺乏某种东西的状态。A.动机
A.热压灭菌 B.紫外线灭菌 C.流通蒸汽灭菌 D.滤过灭菌 E.干热灭
几个级别的经理都对营销部门的审计结果感兴趣,以下哪项是沟通审计结果的最佳方法?A
黄体功能不足的临床特点为A.月经周期正常,经期延长 B.月经周期缩短,月经频发
患者,男,43岁。左大腿内侧发现肿物10年,不疼痛,活动正常。检查:局部皮下可及
下列各种化学物质中,不属于外源性化合物的是A.农用化学品、工业化学品 B.药物
最新回复
(
0
)