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
31
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] 【L20】
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
significant
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3929783.html
相关试题推荐
Theboysinthestreethavebecomeveryinsolentanditismorethanfleshandb
Soinvolvedinhisexperimentstheprofessorhasbecomethathecanhardlyhave
Amongalltheleisureactivities,sporthasbecomeanimportantoptionforthep
Whenpeoplebecomeunemployed,itis_whichisoftenworse,psychologi
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
随机试题
Fromthefirstparagraphweknowthat______.[br]ProfessorHarryL.Fisherwas
[originaltext]Myfriend,VernonDavies,keptbirds.Onedayhephonedandtol
Juicemaybetasty,butit’snotreallythatnourishing.Whileorangejuice
[originaltext]W:AtworkIsometimesfeelasifIdon’treallyunderstandanyth
[originaltext]It’snoteasytalkingtoarelativeorfriendwhoisdying.B
气功(Qigong)是中国文化的杰出遗产(legacy),也是传统中医的一个重要组成部分。它是以调心、调息、调身为手段的身心锻炼方法。气功能解乏并改善睡
按神经科分级方法将肌张力分为A.1级 B.2级 C.3级 D.4级 E.
患者女性,40岁,上呼吸道感染服用磺胺嘧啶。 同时还可加用的药物是()A
按经营使用方式划分,房地产的类型主要有( )。A.现房 B.出售 C.出
支气管哮喘12年,规律吸入糖皮质激素,近2周再次出现喘息发作,夜间症状明显不宜采
最新回复
(
0
)