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
2025-01-26
14
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] 【L1】
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
timing and duration
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3929764.html
相关试题推荐
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
Apilotcannotflyaplanebysightalone.Inmanyconditions,suchasflyin
Apilotcannotflyaplanebysightalone.Inmanyconditions,suchasflyin
Apilotcannotflyaplanebysightalone.Inmanyconditions,suchasflyin
Apilotcannotflyaplanebysightalone.Inmanyconditions,suchasflyin
Apilotcannotflyaplanebysightalone.Inmanyconditions,suchasflyin
随机试题
关于煤矸石路堤的填筑施工说法不正确的是()。A.来源不同的煤矸石填料,性能相差
常用于不同数据集的分散程度的比较的统计量是()。A.样本极值 B.样本方差
锅炉的主要受压部件有()。A.锅筒 B.水冷壁 C.集箱 D.对流
可摘局部义齿初戴时就位困难的处理方法是A.缓冲卡环体 B.缓冲基托组织面 C
A.过敏反应 B.精神症状 C.消化道反应 D.出血倾向 E.脑疝形成为
余某在服现役期间因患职业病去世,去世前余某每月的工资津贴是3000元,上一年度的
经营性物业的财务管理的内容可以分为()这几个部分。A:长期投资B:长期筹资C
起重吊装采用2个以上吊点起吊时,下列吊索与水平线夹角,宜选用的角度是()。201
同样浓度和分散度的下列粉尘中,何者致纤维化能力最强A.煤尘 B.石英尘 C.
胸椎骨折脱位伴脊髓损伤患者,双下肢出现不全瘫,查体:侧卧位能屈髋,仰侧卧位不能屈
最新回复
(
0
)