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首页> 外文期刊>International Review of Hydrobiology >Impact of Geese on the Limnology of Lakes and Ponds from Bylot Island (Nunavut, Canada)
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Impact of Geese on the Limnology of Lakes and Ponds from Bylot Island (Nunavut, Canada)

机译：鹅对拜洛特岛（加拿大努纳武特）湖泊和湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊湖泊水质的影响

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摘要

Arctic freshwater ecosystems are important habitats for northern wildlife. Arctic climate impact studies suggest that global change could result in major modifications and perturbations of lakes, ponds and wildlife. Most studies focus either on freshwater ecosystems or on animal populations, but few have investigated the links that exist between them. Animal populations have the potential to alter the nutrient inputs in lakes and ponds via faeces. The present study is the first to reveal the impact of an expanding Greater Snow Goose (Chen caerulescens atlantica) population on the limnology of arctic lakes and ponds. A survey of 27 freshwater ecosystems was performed on Bylot Island (Nunavut, Canada) in order to identify patterns in limnological conditions. Using a multivariate statistical approach, our study shows that the presence of birds in the catchment of lakes and ponds has an impact on their nutrient status. Concentrations of major ions that were related to the distance from the sea were the main environmental variable explaining the limnological differences observed among lakes and ponds. Nutrient variables that were mostly related to the presence of Snow Geese played a secondary but significant role. N and P concentrations were different among impacted and non-impacted sites, underlining the impact of animal populations on northern freshwater ecosystems. (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
机译：北极淡水生态系统是北部野生生物的重要栖息地。北极气候影响研究表明，全球变化可能导致湖泊，池塘和野生动植物发生重大变化和扰动。大多数研究要么集中在淡水生态系统上，要么集中在动物种群上，但是很少研究它们之间存在的联系。动物种群有可能通过粪便改变湖泊和池塘中的营养输入。本研究首次揭示了扩大的大雪雁（Chen caerulescens atlantica）种群对北极湖泊和池塘的湖沼学的影响。为了确定气候条件的模式，在拜洛特岛（加拿大努纳武特）对27个淡水生态系统进行了调查。使用多元统计方法，我们的研究表明，湖泊和池塘集水区中鸟类的存在对其营养状况有影响。与离海距离有关的主要离子浓度是主要的环境变量，解释了在湖泊和池塘之间观察到的岩性差异。主要与雪雁的存在有关的营养变量起着次要但重要的作用。受影响和非受影响地点的氮和磷浓度不同，这突显了动物种群对北部淡水生态系统的影响。 （©2010 WILEY-VCH Verlag GmbH＆Co.KGaA，Weinheim）

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  • 来源
    《International Review of Hydrobiology》 |2010年第2期|p.105-129|共25页
  • 作者

    Ghislain Côté; Reinhard Pienitz; Gaute Velle; Xiaowa Wang;

  • 作者单位

    Aquatic Paleoecology Laboratory, Département de Géographie and Centre d'études nordiques, Université Laval, Québec (Québec), G1V 0A6, Canada;

    Aquatic Paleoecology Laboratory, Département de Géographie and Centre d'études nordiques, Université Laval, Québec (Québec), G1V 0A6, Canada;

    Bergen Museum, University of Bergen, Postbox 7800, 5020 Bergen, Norway;

    Aquatic Ecosystem Protection Research Division, Environment Canada, Burlington (Ontario), Canada;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    water birds; arctic; nutrients; multivariate approach; freshwater ecosystems;

    机译：水禽;北极;营养物;多元方法;淡水生态系统;

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