Results 31 to 40 of about 2,372 (214)
Guanotrophy: Waterbirds Pay for Using Resources at Their Wintering Habitats 鸟粪营养学 ：水鸟在越冬栖息地使用资源后留下回报
Integrative Conservation, Volume 3, Issue 4, Page 382-397, December 2024.Significant waterbird colonisation was recorded in the wintering period (October through March in 2018–2019 and 2019–2020) in wetlands on Central Asian and East Australasian Flyways. Different limnochemical conditions influenced nitrate and phosphate concentrations.
Arkajyoti Mukherjee +3 more
wiley +1 more source
A study on the breeding-site fidelity of Chinese egret——based on stable carbon and nitrogen isotopic analyses [PDF]
, 2015 稳定同位素技术因具有示踪、整合和指示等多项功能，以及检测快速、结果准确等特点，近二十几年来被作为一种比较成熟的技术应用于生态学及环境科学的各个领域。例如，研究生物与环境的相关关系，检测环境污染，研究动物的食性、食物构成、营养级层次、食物链及食物网结构，动物迁徙活动，农产品溯源，食品安全等方面。同时，稳定同位素技术在动物生态学研究，尤其是鸟类生态学研究中发挥了巨大的作用，解决了很多传统方法无法解决的难题。例如鸟类食性选择、迁徙路线及中途停留地选择、繁殖地忠实度等问题上。至此 ...
于小桐
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Journal of Analytical Psychology, Volume 69, Issue 5, Page 768-787, November 2024.Abstract One of Jung’s most significant contributions concerns the mysterious, inexplicable and always out‐of‐reach nature of the self. In this paper, I will focus on the borders of the self and their nature, location and dynamics of maintenance and change in geographically, historically, and culturally situated subjects.
Monica Luci
wiley +1 more source
Design and Implementation of Household Register Information Management System for a Guizhou Police Station [PDF]
, 2015 户籍管理是我国各地公安机关管理工作的前提，完成好此项工作才可以更好地对社会进行有效管理。原来各个机构一般都是使用人工管理模式，但是伴随社会进程的推移，以及人口的不停迁徙，进入、离开等给工作造成了诸多问题，无法快速查找、记录对方的数据，各类信息难以得到全面的运用。为了更全面的促进社会治安，需要提高管理力度，主动使用优秀的电子信息科技以及管理模式来提升管理水平。因此，户籍管理的电子信息化，能够减少复杂的工作流程，提升户籍管理的运作速率。运用电脑中较为便捷的微软系统来作为运行平台 ...
黄小婷
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Conservation Biology, Volume 38, Issue 2, April 2024.Abstract Aquaculture can provide foraging habitat for birds, but it can also result in intentional and accidental mortality. We examined an overlooked conflict between razor clam (Sinonovacula spp.) aquaculture and declining shorebirds in southeastern China's Fujian and Zhejiang provinces.
Dan Liang +10 more
wiley +1 more source
The Process of Joyoung’s Transformation in The Internet Era [PDF]
, 2016 互联网的蓬勃发展，改变了人们的生活方式，提升了商业效率，新商业时代已到来。传统企业遭受到前所未有的冲击甚至被颠覆，它们在彷徨焦虑中急需或正在转型。但如何进行，并无蓝本可参考。九阳在互联网转型道路上取得一些成就，很多成功案例也受到业界的广泛认可。本人是九阳转型的践行者，参与了九阳转型的整个历变历程。本文在参考了许多互联网营销理论和案例的基础上，结合九阳转型中的具体价值创新模式及成功经验进行了总结，以力求给正在转型路上的企业以实战借鉴参考和启示。本文中的实战案例，可作为教学参考，其间的理论、使用模型与方法论，
唐延辉
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New Phytologist, Volume 241, Issue 5, Page 2287-2299, March 2024.Summary Global change has accelerated local species extinctions and colonizations, often resulting in losses and gains of evolutionary lineages with unique features. Do these losses and gains occur randomly across the phylogeny? We quantified: temporal changes in plant phylogenetic diversity (PD); and the phylogenetic relatedness (PR) of lost and ...
Josep Padullés Cubino +33 more
wiley +1 more source
, 2013 疫病流行不仅造成宋代人口的死亡、迁徙和流动,而且还影响到社会经济的发展和部分战争的进程。这给政府带来极大的挑战,迫使宋政府不得不去思考解决和应对疫病的方法与措施将政府、医家和民间的力量紧密结合起来宋代疫病流行造成的无序状态和饥民暴动,给政府带来极大的挑战疫病因其发病急骤、传染性强、病情凶险,成为宋代流行最广泛的传染病 ...
韩毅
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清代闽西的生态压力与人口迁徙——基于高头江氏族谱与契约的分析 [PDF]
, 2019 高头多山,自然条件有限。明末以降,高头江氏为解决因人口过度增长所带来的生态压力,不得不选择向外迁徙。而乾嘉道时期东山房江汉蟾家族,尤其是泊清房的兴起表明,虽然高头人地关系紧张,但江文亮等叔侄凭借自身优势,持续在高头购产置业,成为高头土地交易中的重要受入方。与此同时,在社会经济竞争中失败的江文锦,则只能变卖家产,抵充迁台资费 ...
彭兴
core +1 more source
Importance of habitat heterogeneity in tidal flats to the conservation of migratory shorebirds
Conservation Biology, Volume 38, Issue 1, February 2024.Abstract Understanding species distribution patterns and what determines them is critical for effective conservation planning and management. In the case of shorebirds migrating along the East Asian‐Australasian Flyway (EAAF), the loss of stopover habitat in the Yellow Sea region is thought to be the primary reason for the precipitous population ...
Shangxiao Cai +4 more
wiley +1 more source