Results 41 to 50 of about 58,899 (239)
Impacts of Human Development on Wildlife Use of Corridors in Botswana 人类开发对博茨瓦纳野生动物廊道利用的影响
This study examined the effect of landscape‐scale human impact on wildlife in Botswana. We examined how species use wildlife corridors in two different human‐dominated landscapes. We identified differences in temporal overlap between wildlife and humans across both landscapes, which is fundamental to consider in both current and future conservation ...
Tempe S. F. Adams +3 more
wiley +1 more source
Influence of Root Secretion Flavonoids on the Biogeochemistry Behavior of Cadmium in Avicennia marina (Forsk.) Vierh Rhizosphere [PDF]
红树林生态系统主要分布于热带和亚热带的海岸潮间带,其具有独特的生态学和生物学特性,为污染物的吸附治理提供了最佳场所。然而,近年来,随着工业化、城市化和地区经济的快速发展,导致大量生活污水和工业废水流向红树林湿地,使得红树林生态系统面临越来越严重的重金属污染,从而使得滨海湿地面临着日益严峻的重金属污染。进入红树林湿地的污染物最先在红树植物根际区进行一系列形态转化等过程,而后被植物吸收累积。因此,红树林根际区重金属化学行为已经成为近年来污染生态学的研究热点。 类黄酮是植物体内广泛存在的一类重要次生代谢产物 ...
李健
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We found the estimated use of tiger bone glue within the last 12 months to be 6.9%. We found a stated motivation of taking TBG to improve health, and by the suggestion of one's social group. We suggest reducing the acceptability of TBG as medicine and encouraging non‐animal‐based medicinal alternatives.
Elizabeth Oneita Davis +5 more
wiley +1 more source
In order to study the pollution characteristics and source contributions of PM2.5 at Lin'an, located in Hangzhou City, the PM2.5 component online monitoring was conducted from December 23, 2021, to February 28, 2022, and the sources apportionment of PM2 ...
马勤(MA Qin), 许振波(XU Zhenbo)
doaj +1 more source
近25 a 银川市城市化进程中热力景观格局演变分析 [PDF]
: Based on the Landsat images and statistical data,in this paper the urbanization process and thermal landscape dynamics of Yinchuan City were analyzed. The objectives of this study were as follows: ① To analyze the spatial and dynamic characteristics of
吕荣芳, 张建明, 王浩, 王鹏龙
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Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau
Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley +1 more source
根据韭山列岛海域2015 年11 月(秋)、2016 年2 月(冬)、5 月(春)、8 月(夏) 的调查资料,运用相对重要性指数(index of relative importance,IRI)、冗余分析(redundancy analysis,RDA)、数量生物量曲线 (Abundance-biomass comparison curve,简称ABC 曲线) 及W 统计量(W-statistics) 等方法,分析了该海域优势种虾类及其与环境因子的关系。结果表明,保护区共调查到暖温、暖水性虾类16 种,
LUKaner(卢衎尔) +6 more
doaj +1 more source
Response of stable states of simple marine plankton ecosystems to warming [PDF]
温度是影响海洋浮游生态系统结构和功能的关键环境因子。从上个世纪初以来,受到人类排放温室气体的影响,全球海洋平均温度明显升高。但温度影响浮游生态系统变化和浮游生物生物量变动的机制还不明确。本文采用理论模型与实验生态相结合的方法探究温度对简单浮游生态系统稳态的影响,并一同考虑营养盐的输入,得到如下主要结果: 1.建立描绘以亚心形扁藻(PlatymonasSubcordiformis,绿藻)为被捕食者、海洋尖尾藻(Oxyrrhismarina,甲藻 ...
李奕慧
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Asiatic black bears in Russia face conservation threats such as habitat destruction and fragmentation, which exacerbate food shortages caused by crop failures. This study explores an innovative approach to rehabilitating bears that abandon hibernation in mid‐winter due to extreme exhaustion by providing supplemental food near their den sites.
Sergey A. Kolchin +2 more
wiley +1 more source
生态承载力与生态系统生产总值耦合的生态系统服务评估—以福建省长汀县为例
生态系统质量是区域探索生态优先、绿色发展为导向的高质量发展的重要基础。开展区域生态系统服务评估可获取国土空间生态本底特征,为生态系统保护格局构建提供现状底图,明确生态系统修复重点、国土空间优化提供导向。以长汀县为例,基于地区生态典型性、区域生物量差异及公众支付意愿与能力构建特色评价指标,采用生态承载力与生态系统生产总值耦合研究方法,对长汀县生态系统服务进行县域、镇域、村域及系统斑块等多尺度评估。结果表明:长汀县生态系统服务等级空间分布符合区划规律,大致呈中间低、四周高的特征;尺度细化使结果分布异质性更强,
陈华阳 +4 more
doaj

