Results 21 to 30 of about 850 (144)

气候变化背景下鄱阳湖南矶湿地子湖泊水位变化对越冬候鸟多样 性的影响

open access: yes野生动物学报, 2018
为了解在气候变化背景下鄱阳湖南矶湿地子湖泊水位变化对越冬候鸟的影响,本研究于2015年的10月、11月、12月与2016年的1月、2月、3月对鄱阳湖南矶湿地东湖口、白沙湖、战备湖3个子湖泊内水位及越冬候鸟进行监测与分析。结果表明:共记录到鸟类9目14科32种,其中冬候鸟23种、冬夏鸟和夏候鸟各3种、旅鸟2种、留鸟1种; 不同月份不同子湖泊鸟类群落的多样性、均匀度指数和优势度指数存在一定的动态变化,不同月份的鸟类多样性指数和均匀度指数均为3月>11月>1月>12月>10月>2月 ...
郭恢财 胡斌华 万松贤 万 青 孔 萍 胡 魏
doaj   +1 more source

How much biotic nativeness matters across human demographic groups. [PDF]

open access: yesConserv Biol
Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Eyster HN, Gould RK.
europepmc   +2 more sources

Facilitating Large-Scale Bird Biodiversity Data Collection in Citizen Science: 'Relaxed' Point Counts for Anytime, Anywhere Monitoring. [PDF]

open access: yesEcol Evol
This paper proposes a ‘relaxed’ point‐count survey method to enhance accessibility and expand geographic coverage by easing these constraints. Surveys can be conducted in diverse locations, including urban areas and travel routes, within flexible timeframes (e.g., 6 h after sunrise or during the evening) and with adaptable spacing between survey points,
Hisano M.
europepmc   +2 more sources

湖南省3种鸟类分布新纪录——白眶鹟莺、棕胸蓝姬鹟、领岩鹨

open access: yes, 2022
2017年6月—2020年12月,在湖南壶瓶山国家级自然保护区(29°50’—30°9’ N,110°29’—110°59’ E)每月进行的鸟类多样性调查和种群监测过程中,拍摄到3种雀形目(Passeriformes)鸟类:白眶鹟莺(Seicercus affinis)、棕胸蓝姬鹟(Ficedula hyperythra)和领岩鹨(Prunella collaris ...
康祖杰 白林壮 贺春容 刘美斯 杨道德
core   +1 more source

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

open access: yesConservation Biology, EarlyView.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás   +4 more
wiley   +1 more source

Ecological Analysis of Bird Communites in Xiamen(Amoy) Intertidal Zone during Spring. [PDF]

open access: yes, 1999
Sampling investigation in Xiamen intertidal zone during spring indicated that waders were the main components of intertidal avian communities and 44.4% of the components of intertidal avian communities were composed by shorebirds (charadriiformes).Among ...
宋晓军, 陈小麟
core  

Effects of landscape context on avian specialist response to increased surface temperature in protected areas

open access: yesConservation Biology, EarlyView.
Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge   +2 more
wiley   +1 more source

The Definition of Mangrove Forest and Protection of Mangrove Wetland [PDF]

open access: yes, 2010
红树林保护刻不容缓,但目前的保护现状并不乐观,尤其是在忽视其湿地本质和生态系统的情况下,单纯的有林地保护现象甚为突出。针对以上问题,从红树林名称入手指出红树林的林学渊源,理清概念,分析保护现状,并从生态系统的角度阐述了红树林湿地结构和功能的整体性,探讨和呼吁科学的管理和保护。Mangrove protection does not permit any delay, however, the current situation is not optimistic.Especially ...
王文卿, 王瑁, 黄丽
core  

Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia

open access: yesConservation Biology, EarlyView.
Abstract The international trade in live birds poses risks to animals, people, and biodiversity. To effectively mitigate these risks, decision‐makers require information on the volume, dynamics, and direction of trade. Despite Africa once being the largest exporter of birds by region, very little data exist on recent trade in live birds not listed on ...
Alisa Davies   +4 more
wiley   +1 more source

Study on Technological Strategies for Ecological Restoration in Xiamen Yundang Lagoon [PDF]

open access: yes, 2014
“一部人类文明的发展史,就是一部人与自然的关系史”,近年来,环境污染问题的频发、资源稀缺问题的突显和生态系统退化问题的日趋严重,都让人们越来越深刻地意识到生态环境保护的重要性和紧迫性。党的十八大明确提出了生态文明建设。面对如今的生态环境问题,生态修复正逐渐成为人类抑制各种生态破坏行为、改善和保护地球生态环境的重要方法。它是以生态学及相关学科所揭示的生态系统与环境之间的关系为基本法则,包括了从宏观到微观的一系列措施,并具有影响因素多而复杂、在理论研究和应用实践上都是多学科交叉等特点 ...
赵佳懿
core  

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