搜索结果: 46-60 共查到“国际动态 生态学”相关记录211条 . 查询时间(2.104 秒)
From tropical to boreal ecosystems,temperature drives functioning（图）
tropical boreal ecosystems drives functioning
2019/10/18
With the help of an NSF grant, University of Arizona scientists trekked across the Americas: from moist, tropical jungles of Panama to the frigid boreal forests of Colorado to the wet temperate forest...
What motivates people to join--and stick with--citizen science projects?（图）
citizen science projects Dead Bird coastal beach
2019/10/22
From searching for extraterrestrial life to tracking rainfall, non-experts are increasingly helping gather information to answer scientific questions. A hands-on, outdoor citizen science project, the ...
To find out how invading predators change an ecosystem, watch their prey（图）
invading predators change ecosystem watch their prey
2019/10/28
Invading predators can devastate an ecosystem. In fact, a leading cause of extinction is the introduction of predators into an isolated place like an island or a lake.The destruction is usually blamed...
应高寒生态重点实验室梁尔源研究员邀请，加拿大魁北克大学(University of Quebec at Chicoutimi) Sergio Rossi教授于2018年12月24日至2019年1月1日来我所访问交流。12月25日下午，Rossi教授做了“Writing scientific papers: the style matters”的学术报告，报告由梁尔源研究员主持。来自我所、中科院地理...
研究认为空气污染可能导致阿尔茨海默病风险上升
空气污染 阿尔茨海默病 神经轴突损伤 脑脊髓液
2022/2/25
一个国际研究小组日前在美国《阿尔茨海默病杂志》上发表报告指出，长期生活在空气污染环境中的人们，年轻时神经就会受到损伤，患阿尔茨海默病的风险可能会有所上升。
科学家提出世界热带森林5个主要植物区系
世界热带森林 非洲热带森林
2018/3/21
近日，美国《国家科学院院刊》（PNAS）发表的《世界热带森林的系统发育分类》提出了世界热带森林的5个主要植物区系。掌握世界热带森林生物地理亲缘关系相关知识有助于更好地理解森林结构、组成和多样性的区域差异，并有助于预测特定地区对全球环境变化的响应。来自文莱达鲁萨兰大学、加利福尼亚大学、墨西哥国立自治大学等机构的研究人员结合全球不断丰富的全球物种库存数据与系统发育的相似性，提出了世界热带森林的5个主要...
Winter Road Salt,Fertilizers Turning North American Waterways Increasingly Saltier（图）
Winter Road Salt Fertilizers Turning North American Waterways Increasingly Saltier
2018/1/10
Across North America, streams and rivers are becoming saltier, thanks to road deicers, fertilizers and other salty compounds that humans indirectly release into waterways. At the same time, freshwater...
A Classic Darwinian Ecological Hypothesis Holds Up—With A Twist（图）
Darwinian Ecological Hypothesis Holds Up Twist
2018/1/10
A long-held hypothesis about the factors that govern species ranges largely holds true, but may be the result of a previously underappreciated ecological mechanism, new research shows.The prediction, ...
Dust On The Wind:Study Reveals Surprising Role Of Dust In Mountain Ecosystems（图）
Dust On The Wind Role Of Dust Mountain Ecosystems
2017/12/19
Find related stories on NSF's Critical Zone Observatories at this link.Trees growing atop granite in the southern Sierra Nevada Mountains rely on nutrients from windborne dust more than on nutrients f...
UW Study of Global Datasets Reveals Significant Role of Dust in Mountain Ecosystems（图）
UW Study Global Datasets Dust Mountain Ecosystems
2017/12/19
Trees growing atop the Bald Mountain Granite in the southern Sierra Nevada rely on nutrients from windblown atmospheric dust -- more than 50 percent -- compared to nutrients provided from underlying b...
Study Finds Variation Within Species Is A Critical Aspect Of Biodiversity（图）
Variation Within Species Critical Aspect Biodiversity
2017/12/19
Concerns about biodiversity tend to focus on the loss of species from ecosystems, but a new study suggests that the loss of variation within species can also have important ecological consequences.Man...
More than half of world's fresh water supply warming rapidly（图）
More than half of world fresh water warming rapidly
2017/11/23
More than half of the world's fresh water supply is warming rapidly, according to an NSF- and NASA-funded study.Using satellite data and ground measurements collected from 235 lakes on six continents ...
The Giant Panda's Habitat Is Shrinking And Becoming More Fragmented（图）
Giant Panda Habitat Shrinking More Fragmented
2017/10/24
A study by Chinese and U.S. scientists finds that while populations of the iconic giant panda have increased recently, the species’ habitat still covers less area and is more fragmented than when it w...
Changes in non-extreme precipitation may have not-so-subtle consequences（图）
non-extreme precipitation not-so-subtle consequences
2017/9/20
Find related stories on NSF's Critical Zone Observatories site.Extreme floods and droughts receive a lot of attention. But what happens when precipitation -- or lack thereof -- occurs in a more measur...
The sand trap:Demand outpaces caution–and knowledge（图）
sand trap Demand outpaces caution knowledge
2017/9/20
Sand, spanning miles of beaches, carpeting vast oceans and deserts, is a visual metaphor for limitless resources. Yet researchers in this week’s journal Science seize another metaphor – sand in an ho...