Results 11 to 20 of about 15,469 (168)
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Most terrestrial plant species form symbioses with arbuscular mycorrhizal fungi (AMF). However, the below‐ground carbon (C) allocation of plants and the nutritional and growth benefits provided by AMF within this symbiosis vary greatly across species and environments ...
Hengjun Zhao +3 more
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Journal of Animal Ecology, EarlyView.This population‐comparative study reveals that male and female parents respond differently to social and ecological conditions. This sex‐specific responsive strategy is related to the incongruent parental care systems across populations in Chinese penduline tits.
Jia Zheng +5 more
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Methods in Ecology and Evolution, EarlyView.Abstract Molecular identification of insect food webs can accurately reveal complex trophic interactions and serve as a foundation for understanding ecosystem functioning and advancing biodiversity conservation. This process typically involves DNA library construction, high‐throughput sequencing and subsequent steps, including data assembly, annotation,
Xiao‐man Zhang +9 more
wiley +1 more source
Conservation Biology, EarlyView.Abstract Constructed value of information (CVoI) is an expert elicitation decision‐analytic tool used to prioritize sources of uncertainty based on their potential to improve decision outcomes if resolved. Despite increased application of CVoI, the robustness of CVoI prioritization of sources of uncertainty relative to differences in expert elicitation
Kristin P. Davis +7 more
wiley +1 more source
, 2017 区域地壳稳定性评价在我国主要作为工程建设的决策和规划的重要参考。这一方法是在我国的大型工程的建设活动中得到了广泛地应用,其应用范围包括大坝、核电站的决策和选址以及城市规划、铁路、隧道等工程的建设等。近年来,随着工程活动规模的扩大,对区域地壳稳定性评价也提出了新的要求:一是需要更加贴近工程实践,实现由场地评价向地质工程设计的转变;二是需要将评价区域由传统的陆地区域扩展到海域。本文即是一次进行海域工程区域地壳稳定性评价的尝试,利用所采集到的渤海海峡及邻区最新的GPS 数据、重磁场数据 ...
刘忠亚 赵铁虎 彭轩明, 赵铁虎
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Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, EarlyView.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2023 利用ABAQUS有限元软件对薄壁不锈钢圆管轴压柱的轴压稳定性能进行了数值模拟，并考察了材料性能参数、材料各向异性、初始几何缺陷、径厚比、长细比等因素的影响。分析结果表明：材料各向异性和初始局部缺陷的取值对构件轴压稳定性能影响较小，可以忽略；初始整体缺陷取值对构件轴压稳定性能影响较大，有限元模型中取构件长度的1/2 000可较为准确地模拟试验结果；材料性能参数、径厚比和长细比对构件轴压稳定性能影响较大。通过对不同径厚比构件的分析，提出了防止构件发生局部屈曲的容许径厚比建议公式 ...
朱浩川, 许友武, 姚谏
doaj
Preparation and Characterization of Anion Exchange Membranes based on Poly(arylene ether)s for Fuel Cells [PDF]
, 2016 燃料电池是一种能够直接把燃料的化学能转化为电能的能量转换装置，具有转化效率高、能量密度高、环境友好等优点。在各种燃料电池中，碱性阴离子交换膜燃料电池(AlkalineAnionExchangeMembraneFuelCells，AAEMFCs)因具有反应动力学快、可使用非贵金属催化剂、燃料渗透率低等优点而受到越来越多的关注。阴离子交换膜(AnionExchangeMembranes，AEMs)作为AAEMFCs的关键组成部分，起到阻隔燃料和氧化剂以及传递OH−离子的作用 ...
赖傲楠
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Insights for conservation from the Ecological Knowledge Games project
Conservation Biology, EarlyView.Abstract Environmental conservation research requires robust methods for collecting large‐scale behavioral data and engaging diverse stakeholders in decision‐making processes. We (Y.P., A.B.D., and N.B.) created EcoKnowGames (Ecological Knowledge Games), a transdisciplinary project that develops knowledge games for conservation science and data ...
Yuan Pan +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2019 为分析桉树林土壤含水量时间稳定性特征，选取桉树林典型坡面，测量坡面9个样点5年土壤含水量，基于所测数据采用相对差分法和Spearman秩相关系数法分析土壤含水率的时空变异性和时间稳定性。结果表明，研究区坡面5年的表层平均土壤含水率为21.81%，在空间上表现为较弱的变异性，在时间上具有中等程度变异性。各年平均土壤含水率相关系数偏低，土壤含水率的空间模式在观测时间上的相似性较弱，其平均相对差分变化范围为-7.08%~5.03%，相对差分标准差和时间稳定性指数的平均值分别为5.73%和6.58 ...
兰秀 +7 more
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