Results 81 to 90 of about 20,124 (185)
武夷山自然保护区郁闭稳定甜槠林与人为干扰甜槠林物种多样性比较 [PDF]
, 2000 研究了武夷山自然保护区郁闭稳定甜槠林与人为干扰甜槠林的物种多样性 ,分别利用物种丰富度指数、Shannon- Wiener指数、Pielou均匀度和 Simpson指数作了比较。结果表明郁闭稳定甜槠林的物种丰富度为 11.370 4,Shannon- Wiener指数为 3.940 4,均匀度为 6 3.0 5 % ,Simpson指数为 6 .3740 ;人为干扰后的甜槠林的各项物种多样性指数值远比郁闭林高 ,分别为 2 0 .0 479、5 .5 431、78.44 %、2 1.716 3 ...
何建源 +4 more
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Conservation Biology, EarlyView.Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair +17 more
wiley +1 more source
野生动物学报, 2021 鸟类多样性是生物多样性的重要组成部分，监测鸟类多样性利于了解环境对生物的影响，及时施加正向干预，保护鸟类及其栖息环境。2016—2018年夏季采用样线法对秦岭西段麦积山区域的繁殖鸟类进行了调查，共记录到鸟类12目36科94种，种类最多的是雀形目（67种，占7127%）；国家Ⅱ级重点保护鸟类9种，CITES附录8种鸟类；鸟类区系组成中，古北界鸟类有13种（占1383%），东洋界鸟类有23种（占2447%），广布种有57种（占6064%）。与其他生境相比，针阔叶混交林生境的鸟类物种最多（68种 ...
卢梦洁 1 包新康 1 李建亮 1 马东辉 1 伊剑锋 2 刘威 2
doaj
Characteristics of the aboveground biomass and diversity along altitudinal gradients in alpine meadows of the upper reaches of the Yarlung Zangbo River [PDF]
[Objective] The Yarlung Zangbo River is the most important river in the Tibetan Plateau, and the study of aboveground biomass and species diversity of the Yarlung Zangbo River is of great significance for the understanding of grassland resources and ...
DONG Ruizhen +5 more
core +1 more source
Harnessing social media data to track species range shifts
Conservation Biology, EarlyView.Abstract Biodiversity monitoring programs and citizen science data remain heavily biased toward the Global North. Especially in megadiverse countries with limited biodiversity records, incorporating social media data can help address existing data gaps.
Shawan Chowdhury +15 more
wiley +1 more source
野生动物学报两栖和爬行类动物被认为是环境健康的重要指示类群。为掌握杭州重要城市生态系统中生物多样性状况，本研究对西湖风景名胜区和西溪国家湿地公园两处核心地区的两栖爬行动物进行多样性调查与评估。本研究在调查区域利用样线法和样方法开展了3个季节的调查，记录到两栖类2目8科21种，爬行类1目8科23种；除上述本土物种外，还发现寺庙的放生池中有一定数量的龟类（6种），其中有入侵物种巴西龟（Trachemys scripta elegans）和蛇鳄龟（Chelydra serpentina）。物种多样性特征分析结果表明 ...
江志 +5 more
doaj +2 more sources
Research on the Community Ecology of Castanopsis fabri Forest in Daiyunshan National Natural Reserve of Fujian [PDF]
, 2011 罗浮锥(Castanopsisfabri)分布于长江以南各省，为中国亚热带常绿阔叶林的常见树种。在戴云山国家级自然保护区分布有较大面积的罗浮锥天然林，故开展罗浮锥林的研究对于完善福建山地常绿阔叶林的研究具有积极的学术意义。本研究以对福建戴云山国家级自然保护区内永安岩不同海拔高度上的罗浮锥林进行了群落调查，从区系组成、生物多样性、种间关联性、生态位以及群落稳定性几个方面深入分析罗浮锥林，并与闽北万木林自然保护区的罗浮锥林进行比较，分析比较两地罗浮锥林的差异。研究结果如下。 (1)在罗浮锥林全面调查的基础上，
黄文文
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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
Conservation Biology, EarlyView.Abstract Although significant biodiversity has been safeguarded by protected areas (PAs), biodiversity trends continue downward. Within the frameworks of the EU Biodiversity Strategy for 2030 and the new EU Restoration Regulation (2024), conserving critical biodiversity areas is essential.
George Kefalas +14 more
wiley +1 more source
, 2000 调查福建南靖和溪南亚热带雨林的 30个样地 ,共 30 0 0 m2 的群落面积 ,分析群落物种多样性特征 ,得到 Margalef丰富度指数 D1=0 .92 50 ,Shannon- Wiener指数 D2 =4 .5454,Simpson指数D3 =7.330 5,PIE=0 .930 0 ,均匀度 J=0 .86 0 3.探讨乔木层、灌木层物种多样性特征值 ,其变化趋势与群落总多样性一致 .分析群落中 16个主要乔木种群的年龄结构 ,揭示群落乔木层主要建群种呈增长型 ...
张宜辉 +4 more
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