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  • Land use influences macroinvertebrate community composition in boreal headwaters through altered stream conditions

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    Burrows96845-Published.pdf (966.1Kb)
    Author(s)
    Jonsson, Micael
    Burrows, Ryan M
    Lidman, Johan
    Faltstrom, Emma
    Laudon, Hjalmar
    Sponseller, Ryan A
    Griffith University Author(s)
    Burrows, Ryan M.
    Year published
    2017
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    Abstract
    Land use is known to alter the nature of land–water interactions, but the potential effects of widespread forest management on headwaters in boreal regions remain poorly understood. We evaluated the importance of catchment land use, land cover, and local stream variables for macroinvertebrate community and functional trait diversity in 18 boreal headwater streams. Variation in macroinvertebrate metrics was often best explained by in-stream variables, primarily water chemistry (e.g. pH). However, variation in stream variables was, in turn, significantly associated with catchment-scale forestry land use. More specifically, ...
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    Land use is known to alter the nature of land–water interactions, but the potential effects of widespread forest management on headwaters in boreal regions remain poorly understood. We evaluated the importance of catchment land use, land cover, and local stream variables for macroinvertebrate community and functional trait diversity in 18 boreal headwater streams. Variation in macroinvertebrate metrics was often best explained by in-stream variables, primarily water chemistry (e.g. pH). However, variation in stream variables was, in turn, significantly associated with catchment-scale forestry land use. More specifically, streams running through catchments that were dominated by young (11–50 years) forests had higher pH, greater organic matter standing stock, higher abundance of aquatic moss, and the highest macroinvertebrate diversity, compared to streams running through recently clear-cut and old forests. This indicates that catchment-scale forest management can modify in-stream habitat conditions with effects on stream macroinvertebrate communities and that characteristics of younger forests may promote conditions that benefit headwater biodiversity.
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    Journal Title
    Ambio: a journal of the human environment
    Volume
    46
    Issue
    3
    Publisher URI
    https://link.springer.com/article/10.1007%2Fs13280-016-0837-y
    DOI
    https://doi.org/10.1007/s13280-016-0837-y
    Copyright Statement
    Copyright © 2016, The Author(s). Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
    Subject
    Environmental management
    Aquatic insects
    Biodiversity
    Forestry
    Functional traits
    Publication URI
    http://hdl.handle.net/10072/124065
    Collection
    • Journal articles

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