Results 71 to 80 of about 17,267 (157)
Conservation Biology, EarlyView.Abstract Although significant biodiversity has been safeguarded by protected areas (PAs), biodiversity trends continue downward. Within the frameworks of the EU Biodiversity Strategy for 2030 and the new EU Restoration Regulation (2024), conserving critical biodiversity areas is essential.
George Kefalas +14 more
wiley +1 more source
Guangtongxin yanjiu, 2006 文章从对传统数据网络的保护机制和传送网的线路保护机制的分析入手,系统地描述了城域以太网（MEN）中以太网业务的保护机制,特别是对其保护参考模型和4类基本的保护机制进行了较详细的描述,并通过MEN保护机制的典型运用方案,结合分层网络的层间互操作关系,对层间的保护关系进行了综合分析。
汪成义
doaj
Conservation Biology, EarlyView.Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando +54 more
wiley +1 more source
500kV避雷器保护距离试验及对热备用断路器距离保护效果分析
Dianci bileiqi, 2015 首次开展了对500 kV避雷器保护距离的模拟试验,得出了避雷器对被保护设备的保护效果随保护距离的增大而减小的结论,并根据试验结果拟合了关系曲线。同时,考虑到变电站或换流站遭受多次雷击后受避雷器保护的断路器处于热备用状态的情况,进行了断路器热备用状态下避雷器对其保护范围的计算分析,并选取地处雷电频繁区贵州的兴仁换流站为例,仿真分析了当站内交流侧被保护断路器处于热备用状态下,不同雷击下避雷器对其的保护范围及保护效果,得出了避雷器保护范围受不同因素影响的具体情况。
邱慧敏
doaj
A more‐than‐human political ecology of Indonesian songbird trade
Conservation Biology, EarlyView.Abstract Since its inception, conservation science has considered wildlife trade a problem. In focusing on conservation outcomes, conservationists almost completely ignore the welfare of traded animals and plants and the harms they endure. We developed a political ecology approach that incorporates the interconnectedness of people with animals and ...
Sicily Fiennes +9 more
wiley +1 more source
Guangtongxin yanjiu, 2002 共享保护方式是一种有效而又经济的保护方式 .文章讨论了三种共享保护方式及各自的特点 .使用交换光纤 （ OSF）的共享保护方式利用 IP网络控制器来实现 ,主要应用于环形网络拓扑 ;利用 OXC的共享保护方式基于多协议标记交换 （ MPLS）控制平面 ,可以用于任何网络拓扑结构 ;通过合理的逻辑拓扑而实现的共享保护则用于保护 SONET/WDM和 IP ...
姜希军, 隋志成, 吴志坚
doaj
Haiyang yu huzhao本文通过对比半月湾海滩历史岸线、剖面、水下地形、沿岸输沙等的变化，详细分析了海滩的侵蚀现状，探讨了渔港防波堤建设对半月湾海滩侵蚀的动力机制，并针对性地提出了海滩修复思路。研究结果表明，半月湾海滩自渔港防波堤建设以来产生了自西向东的沿岸净输沙，海滩西侧持续侵蚀，东侧持续淤积；2004~2014年西侧岸线蚀退速率最大约为-8.10 m/a，东侧淤进速率最大约为10.10 m/a；2015~2017年年单宽净侵蚀量最大约为10.99 m3/m，2017~2021年单宽净淤积量最大约为26.05 m3/m；岸线、
姜 敏 +8 more
doaj +1 more source
Conservation Biology, EarlyView.Abstract Procedural, distributional, recognitional, and epistemic justice aspects of conservation interventions are well documented in contexts where pastoralism is a key livelihood and way of life. Geospatial analyses and representations of wildlife conservation and restoration that are increasingly applied in pastoralist rangeland socioecological ...
Ryan R. Unks
wiley +1 more source
野生动物学报, 2012 陕西牛背梁国家级自然保护区是中国目前唯一以羚牛及其栖息地为主要保护对象的森林和野生动物类型自然保护区。调查表明,保护区内分布有羚牛206～224头,呈片段化分布在6个生境斑块内,以210国道为界,保护区内羚牛的分布格局为西多东少。虽然保护区内羚牛种群数量和分布区均呈缓慢增长的趋势,但频繁的人为干扰,尤其是保护区内公路、铁路建设和由此导致的生境分割,仍威胁着保护区内羚牛种群的持续生存。
邵建斌 +5 more
doaj
Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, EarlyView.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source