Results 21 to 30 of about 23,392 (176)
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Grasslands worldwide are experiencing severe degradation due to overgrazing, climate change and anthropogenic disturbances, resulting in substantial declines in biodiversity and ecosystem functioning.
Xiaoqi Wang +5 more
wiley +1 more source
StudyontheStructureandCompositionofForestof HuangshanScenicArea [PDF]
, 2016 为了全面了解黄山风景名胜区主要森林群落类型、植物物种多样性及其分布状况，本文选择了天海景区、北海景区、玉屏景区、西海景区、温泉景区、云谷景区、浮溪保护区、西大门等多个区域，通过样线法和典型样地法相结合，在4条样线、62个样地群落调查基础上，结合前人研究成果，分别从植物区系成分、植被类型分类、珍稀濒危植物、群落物种多样性特征、群落的海拔梯度变化等方面进行综合研究。主要研究结果如下： （1）黄山风景名胜区植物种类丰富，区系成分复杂。共有种子植物173科648属1483种（包括变种、亚种和变型），其中 ...
吕霖
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Journal of Animal Ecology, EarlyView.This population‐comparative study reveals that male and female parents respond differently to social and ecological conditions. This sex‐specific responsive strategy is related to the incongruent parental care systems across populations in Chinese penduline tits.
Jia Zheng +5 more
wiley +1 more source
Evaluation System of Marine Protected Area Based on Social-ecological Systems（SESs） [PDF]
, 2016 海洋保护区是保护典型海洋生态系统和生物多样性、拯救珍稀濒危物种的重要工具。目前海洋保护区数量和面积不断增加，但许多海洋保护区并未得到有效的管理，“纸上公园”式的保护区仍大量存在，保护效果不理想。保护区管理效果差的重要原因之一是缺乏定期的跟踪或对比评估，对管理中存在的问题认识不清；因此开展保护区评估对促进管理行动的适应性调整、提升管理水平非常重要。 当前保护区管理效果评估研究存在的主要问题是：评估研究对象以陆地类型的保护区为主，缺乏适用于海洋保护区特性的评估体系；评估偏重管理过程 ...
洪晓巧
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Methods in Ecology and Evolution, EarlyView.Abstract Molecular identification of insect food webs can accurately reveal complex trophic interactions and serve as a foundation for understanding ecosystem functioning and advancing biodiversity conservation. This process typically involves DNA library construction, high‐throughput sequencing and subsequent steps, including data assembly, annotation,
Xiao‐man Zhang +9 more
wiley +1 more source
, 2002 The flora of Hong Kong has been well-surveyed since the mid nineteenth century and has had a long history of alien plant invasions. To the present day, more than 2130 wild plant species have been recorded, including 238 species that are probably ...
Corlett, RT, Ng, SC
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Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
A link between increased temperature and avian body condition in a logged tropical forest
Conservation 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
Haiyang yu huzhaoβ多样性是连接α多样性和γ多样性的重要枢纽，其格局及构建机制一直是生态学研究的热点，尤其是在海洋生态系统中对其的研究相对较少。从物种组成β多样性的角度出发，应用Mantel检验分析了瓯江口β多样性及其组分与地理距离的关系。通过基于矩阵的多元回归分析(multiple regression on distance matrices, MRM)、物种组成与环境因子之间的Mantel检验以及Shannon多样性指数与环境因子间的Spearman分析，综合探讨了构建瓯江口β多样性的主要环境因子。研究结果显示 ...
杨 玉澍 +5 more
doaj +1 more source
月湖底泥疏浚后底栖动物群落的恢复及其与环境的关系 [PDF]
, 2012 研究对月湖底泥疏浚后底栖动物群落动态进行逐月的周年调查,并分析了底栖动物密度、生物多样性与环境因子的关系,结果表明:疏浚导致大型底栖动物基本消失,现存量从疏浚前的(4387±885)ind·m-2降低至(80±21)ind·m-2。疏浚后,寡毛类成为受干扰系统恢复过程中的先锋种类,在春季(4月)和秋冬之际(11月)出现2个密度高峰,分别为(1010±230)ind·m-2和(1538±408)ind·m-2,而摇蚊幼虫在疏浚一年后的秋冬季密度达到高峰(2021±612)ind·m-2 ...
周易勇 +4 more
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