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RAND指出关键海底基础设施面临不断演进的威胁 快报文章
地球科学快报,2025年第12期
作者:  王立伟
Microsoft Word(20Kb)  |  收藏  |  浏览/下载:422/0  |  提交时间:2025/06/25
Threats  critical undersea infrastructure  Implications  
WRI:草原生态系统价值长期被严重低估 快报文章
资源环境快报,2025年第10期
作者:  牛艺博
Microsoft Word(19Kb)  |  收藏  |  浏览/下载:398/0  |  提交时间:2025/05/29
Grassland  Ecosystem Services  Threats  
21世纪末中国约90%地区将连续遭遇洪水与极端高温袭击 快报文章
资源环境快报,2021年第18期
作者:  董利苹
Microsoft Word(14Kb)  |  收藏  |  浏览/下载:631/0  |  提交时间:2021/09/30
China  Unprecedented Sequential Flood-hot Extremes  Growing Threats  
全球平均气温上升将威胁淡水鱼种的生存环境 快报文章
气候变化快报,2021年第7期
作者:  董利苹
Microsoft Word(15Kb)  |  收藏  |  浏览/下载:504/0  |  提交时间:2021/04/05
Global Warming  Freshwater Fishes  Threats  Biodiversity  
科学家警告称外来入侵物种构成的威胁不断增加 快报文章
资源环境快报,2020年第13期
作者:  裴惠娟
Microsoft Word(14Kb)  |  收藏  |  浏览/下载:546/0  |  提交时间:2020/07/15
Invasive Alien Species  Threats  Warning  
Tracking of marine predators to protect Southern Ocean ecosystems 期刊论文
NATURE, 2020
作者:  Kim, Eugene;  Kerssemakers, Jacob;  Shaltiel, Indra A.;  Haering, Christian H.;  Dekker, Cees
收藏  |  浏览/下载:38/0  |  提交时间:2020/07/03

Tracking data from 17 marine predator species in the Southern Ocean are used to identify Areas of Ecological Significance, the protection of which could help to mitigate increasing pressures on Southern Ocean ecosystems.


Southern Ocean ecosystems are under pressure from resource exploitation and climate change(1,2). Mitigation requires the identification and protection of Areas of Ecological Significance (AESs), which have so far not been determined at the ocean-basin scale. Here, using assemblage-level tracking of marine predators, we identify AESs for this globally important region and assess current threats and protection levels. Integration of more than 4,000 tracks from 17 bird and mammal species reveals AESs around sub-Antarctic islands in the Atlantic and Indian Oceans and over the Antarctic continental shelf. Fishing pressure is disproportionately concentrated inside AESs, and climate change over the next century is predicted to impose pressure on these areas, particularly around the Antarctic continent. At present, 7.1% of the ocean south of 40 degrees S is under formal protection, including 29% of the total AESs. The establishment and regular revision of networks of protection that encompass AESs are needed to provide long-term mitigation of growing pressures on Southern Ocean ecosystems.


  
Structural insight into arenavirus replication machinery 期刊论文
NATURE, 2020, 579 (7800) : 615-+
作者:  Zhang, Xiaheng;  Smith, Russell T.;  Le, Chip;  McCarver, Stefan J.;  Shireman, Brock T.;  Carruthers, Nicholas I.;  MacMillan, David W. C.
收藏  |  浏览/下载:40/0  |  提交时间:2020/07/03

The authors provide high-resolution structures of two arenavirus polymerases, revealing that the active site of arenavirus polymerase is inherently switched on, without the requirement for allosteric activation by 5 '  -viral RNA, and that dimerization facilitates polymerase activity.


Arenaviruses can cause severe haemorrhagic fever and neurological diseases in humans and other animals, exemplified by Lassa mammarenavirus, Machupo mammarenavirus and lymphocytic choriomeningitis virus, posing great threats to public health(1-4). These viruses encode a large multi-domain RNA-dependent RNA polymerase for transcription and replication of the viral genome(5). Viral polymerases are one of the leading antiviral therapeutic targets. However, the structure of arenavirus polymerase is not yet known. Here we report the near-atomic resolution structures of Lassa and Machupo virus polymerases in both apo and promoter-bound forms. These structures display a similar overall architecture to influenza virus and bunyavirus polymerases but possess unique local features, including an arenavirus-specific insertion domain that regulates the polymerase activity. Notably, the ordered active site of arenavirus polymerase is inherently switched on, without the requirement for allosteric activation by 5 '  -viral RNA, which is a necessity for both influenza virus and bunyavirus polymerases(6,7). Moreover, dimerization could facilitate the polymerase activity. These findings advance our understanding of the mechanism of arenavirus replication and provide an important basis for developing antiviral therapeutics.


  
Social movements as key actors in governing the commons: Evidence from community-based resource management cases across the world 期刊论文
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS, 2018, 53: 114-126
作者:  Villamayor-Tomas, Sergio;  Garcia-Lopez, Gustavo
收藏  |  浏览/下载:20/0  |  提交时间:2019/04/09
Community based natural resource management  Political economy threats  Environmental justice movements  Meta-analysis  Institutional design principles  
Urban core areas are important for species conservation: A European-level analysis of breeding bird species 期刊论文
LANDSCAPE AND URBAN PLANNING, 2018, 178: 73-81
作者:  Jokimaki, Jukka;  Suhonen, Jukka;  Kaisanlahti-Jokimaki, Marja-Liisa
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09
Birds  Europe  Urbanization  Conservation  Threats  Cavity nesters  
Differentiating environmental concern in the context of psychological adaption to climate change 期刊论文
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS, 2018, 48: 158-167
作者:  Helm, Sabrina V.;  Pollitt, Amanda;  Barnett, Melissa A.;  Curran, Melissa A.;  Craig, Zelieann R.
收藏  |  浏览/下载:22/0  |  提交时间:2019/04/09
Environmental concern  Ecological stress  Ecological coping  Pro-environmental behaviors  Depressive symptoms  Psychological adaptation  Climate change beliefs  Climate change threats