Results 91 to 100 of about 478,795 (192)
Role of funders in embedding tests in conservation practice
Abstract Effective conservation practice requires decisions based on reliable and relevant evidence, but significant gaps in the evidence base exist. Incorporating well‐designed tests of the effectiveness of interventions for biodiversity in conservation projects is one of the best ways to scale up the rate of evidence generation.
Rebecca K. Smith +28 more
wiley +1 more source
湿地是世界上具有很高生产力的一种生态环境。为保护湿地,改变人们对湿地生态价值的认识,世界野生生物基金会、国际自然和自然资源保护联盟、国际水禽研究局和国际鸟类保护理事会联合开展了保护湿地的全球性计划。中国野生动物保护协会作为国际自然和自然资源保护联盟的成员组织,在林业部的关怀指导下,于1986年初开始,积极筹备组织我国的湿地保护宣传活动。保护湿地,关系到地区经济开发和人民群众生产生活的根本利益,是一项社会性很强的工作。鉴此 ...
宋慧刚
doaj
Scientists’ warning on the global destruction of rock outcrop ecosystems
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula +19 more
wiley +1 more source
Abstract Ecological niche models (ENMs) are used to assess the abiotic preferences of species by linking their occurrences to the environmental conditions in which they live. We developed a fossil‐informed ENM framework that integrates mid‐Holocene and modern occurrences to test niche stability and reconstruct abiotic niche characteristics for four ...
Claire. M. Williams +3 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
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
Assessing and strengthening community‐based coastal governance
Abstract Community‐based coastal governance is essential for biodiversity conservation and sustainable livelihoods, yet many communities continue to face significant challenges in establishing and sustaining effective governance systems. We sought to improve understanding of the current status of community‐based coastal governance across five countries
Mark Andrachuk +21 more
wiley +1 more source
本发明公开了一种光纤水听器拖曳阵保护支架,该光纤水听器拖曳阵保护支架包括:主体支架(10),用于支撑、连接其两端部的第一托架(11)和第二托架(12);第一托架(11)和第二托架(12),位于主体支架(10)两端,用于固定水听器(30),并在拖曳阵中支撑外部保护套管(80);以及孔(20),形成于主体支架(10)上,用于声场耦合。本发明提供的这种光纤水听器拖曳阵保护支架,通过利用主体支架和两端的托架有效的抵抗了外界的形变,从而保护了光纤水听器阵列中的光纤水听器,并且在保护光纤水听器的同时 ...
刘育梁, 张文涛, 李 芳, 张发祥
core
法國保險監理之理念,主要係以保護保險契約債權人為鵠的。茲 為達成此目標,法國保險監理單位在防止保險業破產上投注極大心 力。因此,基於必須防範破產於未然,對於保險業不能有破產案例發生之認知,早已成為法國朝野根深蒂固之基本共識。法國在建構保護保險契約債權人機制中,除著重於保險業邊際清償能力與保險法定責任準備金提存外,更針對保險業建立破產保證支付制度為其重要之一環。有鑑於此,其在財產保險方面設有交通狩獵災害保證基金(1951年),而在人壽保險方面亦有壽險保證支付基金(1999 年),實施至今成效堪稱良好 ...
呂慧芬; 劉政明
core
自然保护区环境教育是一种自然保护的主动战略,是保护区持续发展的需要。本文简要地分析了中国自然保护区环境教育存在的问题,并提出了自然保护区环境教育的措施。
赵文超, 张新兵, 贾康胜
doaj

