10.1007_s00267-017-0889-1.pdf (1.14 MB)

Macroinvertebrate taxonomic and functional trait compositions within lotic habitats affected by river restoration practices

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journal contribution
posted on 15.06.2017, 10:48 by James White, Matthew J. Hill, M.A. Bickerton, Paul Wood
The widespread degradation of lotic ecosystems has prompted extensive river restoration efforts globally, but many studies have reported modest ecological responses to rehabilitation practices. The functional properties of biotic communities are rarely examined within post-project appraisals, which would provide more ecological information underpinning ecosystem responses to restoration practices and potentially pinpoint project limitations. This study examines macroinvertebrate community responses to three projects which aimed to physically restore channel morphologies. Taxonomic and functional trait compositions supported by widely occurring lotic habitats (biotopes) were examined across paired restored and non-restored (control) reaches. The multivariate location (average community composition) of taxonomic and functional trait compositions differed marginally between control and restored reaches. However, changes in the amount of multivariate dispersion were more robust and indicated greater ecological heterogeneity within restored reaches, particularly when considering functional trait compositions. Organic biotopes (macrophyte stands and macroalgae) occurred widely across all study sites and supported a high alpha (within-habitat) taxonomic diversity compared to mineralogical biotopes (sand and gravel patches), which were characteristic of restored reaches. However, mineralogical biotopes possessed a higher beta (between-habitat) functional diversity, although this was less pronounced for taxonomic compositions. This study demonstrates that examining the functional and structural properties of taxa across distinct biotopes can provide a greater understanding of biotic responses to river restoration works. Such information could be used to better understand the ecological implications of rehabilitation practices and guide more effective management strategies.

History

School

  • Social Sciences

Department

  • Geography and Environment

Published in

Environmental Management

Pages

1 - 13

Citation

WHITE, J.C. ... et al, 2017. Macroinvertebrate taxonomic and functional trait compositions within lotic habitats affected by river restoration practices. Environmental Management, 60 (3), pp. 513–525.

Publisher

Springer (© The Authors)

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Publication date

2017

Notes

This is an Open Access Article. It is published by Springer under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/ Supplementary data for this article is available in the Loughborough Data Repository at doi: 10.17028/rd.lboro.5873586

ISSN

0364-152X

eISSN

1432-1009

Language

en

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