Results 21 to 30 of about 251 (96)

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

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

Functional Stability Despite Taxonomic Changes in Mixed‐Species Foraging Flock Participants Along an Elevational Gradient in Knuckles Montane Reserve, Sri Lanka 斯里兰卡纳克斯山地保护区 (Knuckles Montane Reserve) 海拔梯度上混合物种觅食群参与者的功能稳定性与分类变化

open access: yesIntegrative Conservation, EarlyView.
This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara   +3 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  

Lessons from an eradication under multiple constraints of an island rat population of record density

open access: yesConservation Biology, EarlyView.
Abstract Invasive rats threaten island biodiversity, disrupting ecosystems and endangering native species. Although rat eradication has succeeded on many islands, tropical islands present unique management challenges. Strict regulations and financial constraints on some tropical islands further limit proven eradication methods, complicating rodent ...
Tatiane Micheletti   +7 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  

A link between increased temperature and avian body condition in a logged tropical forest

open access: yesConservation Biology, EarlyView.
Abstract The combined effects of anthropogenic disturbances, such as logging and climate change, remain poorly understood; yet, they are the main threats to tropical biodiversity. Most tropical African countries lack long‐term climate data, so climate impacts on biodiversity cannot be assessed.
Moreen Uwimbabazi   +7 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  

How much biotic nativeness matters across human demographic groups

open access: yesConservation Biology, EarlyView.
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 ...
Harold N. Eyster, Rachelle K. Gould
wiley   +1 more source

Macrofaunal community at three habitats in the 14th Yong intertidal zone of Nansha,Guangzhou [PDF]

open access: yes, 2010
为了解广州南沙十四涌潮间带大型底栖动物的群落结构,于2007和2008年在十四涌潮间带选择光滩、海桑(SOnnErATIA)和茳芏(CyPEruS MAlACCEnSIS)3种生境进行大型底栖动物调查。对4个季度定量取样获得的大型底栖动物群落结构和差异进行比较分析,结果表明:从种数、平均生物量和丰度指数上看,茳芏生境最多,光滩第二,海桑生境最少;从大型底栖动物平均密度、种类多样性指数和均匀性指数上看,光滩最高,茳芏第二,海桑生境最低。AnOVA分析表明,3种生境间大型底栖动物的物种数、密度均呈显著差异 ...
刘莎   +7 more
core  

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