Results 21 to 30 of about 1,113,823 (173)

Herbivory enhances cadmium foraging in the invasive hyperaccumulating plant Phytolacca americana

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Biological invasions and heavy metal pollution are two pervasive environmental challenges threatening global ecosystems. While the elemental defence hypothesis posits that certain plants accumulate heavy metals to deter herbivores, it remains unclear whether invasive ...
Jingge Kuang   +5 more
wiley   +1 more source

Sixteen Years Later: Revisiting Cultural Complexes and the Roots of Archetypal Thematic Analysis (ATA)1

open access: yesJournal of Analytical Psychology, EarlyView.
Abstract Written as a letter to my 28‐year‐old self, this paper explores the development of my engagement with cultural complexes. On August 18, 2009, I finished a chapter applying cultural complexes to a history of China, complete with elaborate charts that seemed to confirm a process by which cultural complexes are formed, and how China’s then recent
Kevin Lu
wiley   +1 more source

圆环地网与方形地网冲击特性对比仿真

open access: yesDianci bileiqi, 2013
为了更好的解决接地网散流、均压以及降阻问题,对圆环形接地网的均压特性及接地电阻进行了研究,并与传统的方形地网进行比较,采用电磁暂态仿真程序(ATP)对不形状的接地网,在雷电冲击作用下的电压大小进行仿真,以及对同一地网雷电流入地点不同时,入地点处的电压大小进行了仿真分析。结果分析表明:周长相同的圆环形地网与方形地网相比,圆环形地网的接地电阻比方形地网的小,并且雷电流入地点处的电压只有方形地网的一半左右,散流效果比方形地网好。在同跨度下,圆环地网的跨步电压也明显小于方形地网,均压效果好 ...
杨廷方, 张航, 陈智翔, 罗星辰
doaj  

A systematic review of avian influenza virus transmission models: Gaps and opportunities

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Highly pathogenic avian influenza virus (HPAIV) increasingly threatens wild birds, poultry, non‐human mammals and humans, yet gaps and opportunities in avian influenza virus (AIV) transmission modelling have not been comprehensively synthesized.
Shenglai Yin   +7 more
wiley   +1 more source

The collective application of shorebird tracking data to conservation

open access: yesConservation Biology, EarlyView.
Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison   +71 more
wiley   +1 more source

The effect of mesoscale mountain in the boundary layer of the tropical cyclone(中尺度地形对热带气旋边界层的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
基于梯度风动量近似理论,考虑气压梯度力、科氏力、湍流摩擦力、离心力和惯性偏差力5力平衡,得到了柱坐标系下具有热带气旋边界层特征的解析解.并着重讨论了三维钟型孤立地形及二维钟型地形对径向速度、垂直水平流场及垂直速度场的影响.对于数值解的再现表明,热带气旋内边界层的运动同时受到湍流摩擦作用与地形作用的共同影响,二维钟型地形比三维钟型孤立地形对于垂直速度场、径向速度场及流场有更明显的影响.而热带气旋中心与地形中心的不重合会产生风场的不对称结构,且会在地形西北侧形成“偶极型”的垂直速度.
ZHAOYun-wu(赵云武)   +2 more
doaj   +1 more source

Structured decision‐making as a framework to incorporate social equity into conservation decisions

open access: yesConservation Biology, EarlyView.
Abstract Many conservation challenges require negotiating trade‐offs between the needs of different actors. Global frameworks such as the Kunming–Montreal Global Biodiversity Framework explicitly call for diverse participation and social equity in conservation decision‐making.
Emily Massingham   +2 more
wiley   +1 more source

A methodological assessment and reflection on member checking as a form of participant validation for conservation social science

open access: yesConservation Biology, EarlyView.
Abstract Qualitative approaches are increasingly applied in conservation social science, yet methodological reflection remains limited. Member checking, a process of returning findings to participants for feedback, is widely recognized outside conservation as a means to enhance rigor and reciprocity, but it is rarely reported in conservation research ...
Judith J. Rakowski   +6 more
wiley   +1 more source

真实地形地貌对闪电定位系统的影响

open access: yesDianci bileiqi, 2018
为了研究真实地形地貌对雷电回击电磁场和闪电定位系统的影响,利用柱坐标系下二维时域有限差分(FDTD)算法研究了真实地形地貌中高低起伏的地表对雷电首次回击电磁场以及闪电定位系统的影响。模拟结果表明,起伏的地形会使地闪首次回击垂直电场峰值减小,波形上升沿时间增大。但当地表出现特殊的地形结构时,真实的地形会增强垂直电场的峰值。对于雷电首次回击的切向磁场而言,地形地貌的高低起伏会明显衰减切向磁场的峰值,波头向后滞移,到达峰值时间滞后。例如,当雷电电磁场波从模拟闪击点到达测站1时 ...
黄凯丽, 张其林, 陈隆, 冯建伟
doaj  

Subspecies taxonomy reflects social and geographic patterns of taxonomic effort in tetrapods

open access: yesConservation Biology, EarlyView.
Abstract Subspecies have been used in conservation biology to account for intraspecific patterns in genetic diversity, which is crucial to long‐term population viability. Although over 3200 subspecies are currently assessed by the International Union for Conservation of Nature Red List, their biological relevance remains controversial.
Jhonny J. M. Guedes   +3 more
wiley   +1 more source

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