We collated detections of the sun bear from new and previously published camera trap studies across its range. We then analysed these detections at two different spatial scales to assess the habitat associations and diel activity of this species. We found that the sun bear is tolerant to moderate habitat disturbances. ABSTRACT Degraded tropical forests,
Alexander Hendry +5 more
wiley +1 more source
Development of Simultaneous Determination Method for Multi-categorized Organic Pollutants in Sediment and Its Application to the Study of Combined Pollution Characteristics of the Jiulong RiverEstuary [PDF]
我国沿海社会经济相对发达,河口区域承接着流域各类生产、生活活动排放的大量有机污染物。沉积物作为水环境的重要组成部分,既是污染物的主要归宿,又是污染物迁移的载体和二次污染来源。河口沉积物中频繁检出的多环芳烃(PAHs)、多氯联苯(PCBs)、多溴联苯醚(PBDEs)、农药和抗生素等有机污染物严重威胁着河口生态环境。本论文以PAHs、PCBs、PBDEs、农药和抗生素5类122种有机污染物为目标物,运用色谱-串联质谱技术建立了其在沉积物中的分组同时分析方法,并且应用于福建九龙江河口表层和柱状沉积物样品的分析,
易启同
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Using a diagnostic mitochondrial marker gene, we document the presence of furry‐eared dwarf lemurs, a species known from Madagascar's eastern montane rainforests, in several forest fragments across the island's central highlands. These findings raise new questions about when this species colonized these sites, how they tolerate these changing and ...
Marina B. Blanco +27 more
wiley +1 more source
基于改进VIKOR 算法的梯次利用电池电网储能场景适用性评价方法 [PDF]
快速发展的电动汽车带来了巨量的退役动力电池,但其梯次利用场景缺乏科学的甄选方法。研究了梯次利用电池电网储能场景适用性评价方法。首先,从技术性能、经济性能和安全性能3个维度,构建了综合考虑电池运行状态、储能配置经济效益和梯次利用安全风险的梯次利用电池电网储能场景适用性评价指标体系。其次,采用多属性群决策方法优化设定评价维度权重,采用CRITIC法和熵权法形成组合赋权法对评价指标进行权重设置,设计了基于改进VIKOR算法的应用场景适用性评价算法。最后,针对峰谷套利 ...
谢桦, 刘哲, 孔德鹏, 雷博
doaj +1 more source
Environmental Geochemistry Characteristics of Phthalate Esters in the Jiulong River and its Estuary, Fujian, China [PDF]
邻苯二甲酸酯(Phthalateesters,PAEs)是一种普遍存在的全球性污染物,具有内分泌干扰效应和“致畸、致癌、致突变”作用。PAEs难溶于水,进入水环境后易吸附于颗粒物而进入沉积相,或被水生生物吸收而蓄积于生物体内。河流及河口作为连接陆地与海洋之间的过渡带,是陆源污染物质输送至海洋的最重要通道,研究PAEs在陆地河流及入海河口的污染状况、迁移过程、输送通量以及污染历史,是环境地球化学的重要内容,可为河流、河口及海洋生态环境PAEs的污染控制提供重要的理论依据。 论文选择九龙江及其河口为研究区域,
李荣丽
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Landscape‐scale predictions of future grassland conversion to cropland or development
Abstract Grassland conservation planning often focuses on high‐risk landscapes, but many grassland conversion models are not designed to optimize conservation planning because they lack multidimensional risk assessments and are misaligned with ecological and conservation delivery scales.
Kevin W. Barnes +2 more
wiley +1 more source
Spatial-temporal Distribution and Ecological Risk Assessment of Quaternary Ammonium Compounds in Urban Estuarine Sediments [PDF]
四季铵盐化合物(QACs)是一类主要的阳离子表面活性剂,广泛使用于衣物柔顺剂、消毒剂、个人护理品等产品中。QACs易吸附于沉积物上且不易降解,欧美国家于上世纪八十年代已经禁止部分难降解QACs的使用,而亚洲国家仍在大量使用QACs作为商业产品的主要有效成分。在城市化河口环境中关于QACs的分布特征和环境行为的研究还很少。本研究进一步优化了QACs在沉积物的痕量分析方法,选取珠江口这一典型城市化河口区域,研究其表层沉积物中QACs的分布特征和环境行为,并对比分析珠江口沉积物中其他污染物(207种 ...
王翠翠
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Ecological effect of urban spatial expansion in river valleys: A case study in the main urban area of Lanzhou City [PDF]
[Objective] The ecological effect of urban spatial expansion is the key problem of human-environment relationship in the process of urbanization. It is of great significance to explore the complex scientific problem of ecological effect caused by urban ...
WANG Ziyang, SHI Peiji, SHI Jing, ZHANG Xuebin, LIU Yue
core +1 more source
Assessing the risk of overexploitation to a tarantula species in the pet trade
Abstract The global pet trade in invertebrates remains poorly understood and underrepresented in policy and research. Tarantulas are a highly traded invertebrate group. Many individuals in trade are wild caught, and trade regulation is often lacking, raising concerns about the effect of trade on local ecosystems and populations.
Shannon Noelle Rivera +4 more
wiley +1 more source
Pollution Characteristics and Preliminary Risk Assessment of Organic agrochemicals in Surface Water of Jiulong River Watershed [PDF]
农用化学品作为重要的农业生产资料之一,在提高农产品生产率方面发挥着重要作用。农药、兽药等农用有机化学品使用后可能通过干湿沉降、地表径流冲刷等途径进入水环境,威胁水生生态系统健康,导致饮用水源污染、食品安全等问题。 本论文选择常用的40类210种农药(包括氨基甲酸酯类、拟除虫菊酯类、酰胺类、唑类等)和21类100种兽药(包括大环内酯类、四环素类、磺胺类、性激素类等)作目标物,分别建立其在表层水中的分析方法,应用于九龙江流域北溪、西溪、河口农用有机化学品复合污染状况研究 ...
陈茜茜
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