Results 31 to 40 of about 18,171 (208)

秦岭西段麦积山区域繁殖鸟类多样性

open access: yes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7127%);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1383%),东洋界鸟类有23种(占2447%),广布种有57种(占6064%)。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  

Identifying priority areas for conservation to promote connectivity and mitigate the impacts of anthropogenic disturbance

open access: yesConservation Biology, EarlyView.
Abstract As nations seek to expand protected area (PA) networks to cover 30% of land and seas by 2030 (30×30), there is an urgent need for systematic conservation planning and spatial prioritization that considers the broad range of ecological and socioeconomic factors influencing the persistence of biodiversity.
Edmond Sacre   +2 more
wiley   +1 more source

中国深度参与全球海洋生物多样性保护的研究与展望 [PDF]

open access: bronze, 2023
Xin Lin   +10 more
openalex   +1 more source

Vulnerability of tropical fish communities across depth in the central Indian Ocean

open access: yesConservation Biology, EarlyView.
Abstract Coral reefs and their fish communities below scuba diving depth (>30 m), in mesophotic coral ecosystems (MCEs) (∼30–150 m), in rariphotic (150–300 m), and in upper bathyal waters (300–500 m) are often underexplored, especially in the Indian Ocean.
Paris V. Stefanoudis   +12 more
wiley   +1 more source

威海市斑块冬季鸟类多样性与生境的关系

open access: yes野生动物学报, 2012
近年来,威海一直致力于生态城市的建设。物种多样性是生态城市的重要指标,而在物种多样性中,城市鸟类多样性起着重要的作用。本文调查了冬季威海7个斑块(2个校园和5个典型生活小区)的鸟类多样性,对其物种多样性指数以及均匀度指数进行分析,得出山东大学校园和哈尔滨工业大学校园的鸟类多样性高于5个小区斑块,而且2个校园斑块的均匀度在7个斑块中也处于较高水平。另外,结合实际情况,文章从绿化面积、城市栖息地的空间异质性、生境破碎化程度以及人为干扰4个方面对城市鸟类丰富度与多样性的影响因素做出讨论 ...
高伟   +5 more
doaj  

Evaluating protected areas’ coverage of threats to terrestrial biodiversity

open access: yesConservation Biology, EarlyView.
Abstract Protected areas (PAs) are vital for biodiversity conservation and have expanded globally. However, increasing pressures on biodiversity make it difficult to achieve conservation goals. Using threat probability maps based on the International Union for Conservation of Nature Red List and the World Database of Protected Areas, we analyzed the ...
Katherine Pulido‐Chadid   +2 more
wiley   +1 more source

云南生物多样性现状及保护对策探究 Study of Biodiversity Situation and It’s Conservation Measure in Yunnan Province

open access: yes, 2014
云南省是我国生物多样性最为丰富的地区,保存有许多珍稀、特有和古老的类群,是公认的生物多样性重要类群分布最为集中、具有全球意义的生物多样性关键地区之一。进行云南生物多样性现状及保护对策的探究,对于我国乃至世界生物多样性的保护与可持续利用都具有重要的理论价值和实践意义。本文阐明了生物多样性的概念、价值及意义,对我国云南的动物资源、植物资源,生态系统类型,物种遗传资源等进行了系统的分析,针对我国云南生物多样性现状,论述了云南生物多样性的丰富性和特有性等特征,进而分析了云南生物多样性现存的问题。在此基础上 ...
文荣 高, 万龙 朱
semanticscholar   +1 more source

Importance of connectivity for carnivore richness and occupancy in fragmented biodiversity hotspots

open access: yesConservation Biology, EarlyView.
Abstract Structural connectivity affects wildlife movement between habitat patches, contributing to the persistence of wildlife populations and their resilience to human‐induced and environmental changes. However, its importance to wildlife population persistence remains unclear, particularly in fragmented landscapes, where there are additional co ...
Cindy M. Hurtado   +12 more
wiley   +1 more source

广州城市绿地鸟类物种多样性的时空变化

open access: yes野生动物学报, 2017
城市绿地是城市鸟类的主要栖息地和生态避难所,对维持城市鸟类多样性具有重要的意义。为揭示广州城市绿地的鸟类资源现状和时空动态,于2014年10月至2015年9月,采用固定距离样线法,对广州城市7个绿地鸟类群落组成及多样性进行了逐月调查,结果如下:1)共记录鸟类15 347只,隶属14目、36科、92种。其中,国家Ⅱ级重点保护野生动物5种; 留鸟65种、冬候鸟29种、夏候鸟9种和旅鸟9种; 2)鸟类物种多样性指数海珠湖公园最高,珠江公园最低; 丰富度指数大学城湾咀头湿地公园最高,荔湾湖公园和珠江公园最低 ...
胡君梅 丁志锋 王 玲 杨道德 胡慧建
doaj  

Molecular analysis of bacterial diversity with the two lakes in Xinjiang(新疆两湖细菌的非培多样性研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2008
采用非培的方法对新疆销库尔咸湖和兔子湖的细菌多样性进行研究,通过细菌的16S rDNA通用引物PCR扩增其16S rRNA基因序列并构建16S rDNA文库,每个湖随机抽取32个克隆子进行测序,借助系统发育分析软件对获得的序列进行分析;同时通过多样性指数、丰富度指数和优势度指数对两个湖的细菌多样性进行了比较分析.研究结果表明同销库尔咸湖的细菌文库相似的微生物属于以下六大细菌类群:变形细菌门(Proteobacteria)34.5%,包括α-proteobacteria、β ...
SUNChao(孙超)   +2 more
doaj   +1 more source

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