identification of hydrological indices for the characterization of macroinvertebrate community response to flow regime variability
The importance of flow regime variability for maintaining ecological functioning and integrity of river ecosystems has been firmly established in both natural and anthropogenically modified systems. River flow regimes across lowland catchments in eastern England are examined using 47 variables, incl...
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| Veröffentlicht in: | Hydrological sciences journal 2014-04, Vol.59 (3-4), p.645-658 |
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| container_title | Hydrological sciences journal |
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| creator | Worrall, T.P Dunbar, M.J Extence, C.A Laizé, C.L.R Monk, W.A Wood, P.J |
| description | The importance of flow regime variability for maintaining ecological functioning and integrity of river ecosystems has been firmly established in both natural and anthropogenically modified systems. River flow regimes across lowland catchments in eastern England are examined using 47 variables, including those derived using the Indicators of Hydrologic Alteration (IHA) software. A principal component analysis method was used to identify redundant hydrological variables and those that best characterized the hydrological series (1986–2005). A small number of variables ( |
| doi_str_mv | 10.1080/02626667.2013.825722 |
| format | Article |
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River flow regimes across lowland catchments in eastern England are examined using 47 variables, including those derived using the Indicators of Hydrologic Alteration (IHA) software. A principal component analysis method was used to identify redundant hydrological variables and those that best characterized the hydrological series (1986–2005). A small number of variables (<6) characterized up to 95% of the statistical variability in the flow series. The hydrological processes and conditions that the variables represent were found to be significant in structuring the in-stream macroinvertebrate community Lotic-invertebrate Index for Flow Evaluation (LIFE) scores at both the family and species levels. However, hydrological variables only account for a relatively small proportion of the total ecological variability (typically <10%). The research indicates that a range of other factors, including channel morphology and anthropogenic modification of in-stream habitats, structure riverine macroinvertebrate communities in addition to hydrology. These factors need to be considered in future environmental flow studies to enable the characterization of baseline/reference conditions for management and restoration purposes. Editor Z.W. Kundzewicz; Guest editor M. Acreman Citation Worrall, T.P., Dunbar, M.J., Extence, C.A., Laizé, C.L.R., Monk, W.A., and Wood, P.J., 2014. The identification of hydrological indices for the characterization of macroinvertebrate community response to flow regime variability. 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River flow regimes across lowland catchments in eastern England are examined using 47 variables, including those derived using the Indicators of Hydrologic Alteration (IHA) software. A principal component analysis method was used to identify redundant hydrological variables and those that best characterized the hydrological series (1986–2005). A small number of variables (<6) characterized up to 95% of the statistical variability in the flow series. The hydrological processes and conditions that the variables represent were found to be significant in structuring the in-stream macroinvertebrate community Lotic-invertebrate Index for Flow Evaluation (LIFE) scores at both the family and species levels. However, hydrological variables only account for a relatively small proportion of the total ecological variability (typically <10%). The research indicates that a range of other factors, including channel morphology and anthropogenic modification of in-stream habitats, structure riverine macroinvertebrate communities in addition to hydrology. These factors need to be considered in future environmental flow studies to enable the characterization of baseline/reference conditions for management and restoration purposes. Editor Z.W. Kundzewicz; Guest editor M. Acreman Citation Worrall, T.P., Dunbar, M.J., Extence, C.A., Laizé, C.L.R., Monk, W.A., and Wood, P.J., 2014. The identification of hydrological indices for the characterization of macroinvertebrate community response to flow regime variability. Hydrological Sciences Journal , 59 (3–4), 645–658.</description><subject>community response</subject><subject>computer software</subject><subject>débit environnemental</subject><subject>ecohydrology</subject><subject>ecological function</subject><subject>ecosystems</subject><subject>environmental flow</subject><subject>Freshwater</subject><subject>habitats</subject><subject>hydro-morphologie</subject><subject>hydrologic data</subject><subject>hydromorphology</subject><subject>inter-annual flow regime</subject><subject>macroinvertebrates</subject><subject>principal component analysis</subject><subject>rivers</subject><subject>régime inter-annuel des débits</subject><subject>réponse de la communauté</subject><subject>watersheds</subject><subject>wood</subject><subject>éco-hydrologie</subject><issn>2150-3435</issn><issn>0262-6667</issn><issn>2150-3435</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkU9rVDEUxR-iYK39BoIBN25mTF7-TN5KpGgrFLpouw73JTczKe8lY5JpGZd-clOeirhxdcPhdw735nTdG0bXjGr6gfaqV0pt1j1lfK17uen7Z91JzyRdccHl87_eL7tXpdxTysWg-En3IziMNfhgoYYUSfJkd3Q5TWnbpImE6ILFQnzKpO6Q2B1ksBVz-P7HMIPNKcQHzBXHDLVRaZ4PMdQjyVj2KRYkNRE_pccmbMOM5AFygDFMjXndvfAwFTz7NU-7uy-fb88vV1fXF1_PP12tLFe6rqxXwBhD5E7rfpB0AO2YANASBAKV46AdjnJsotvYEUGN6JQYewHOM81Pu_dL7j6nbwcs1cyhWJwmiJgOxTAp-DAMQsmGvvsHvU-HHNt2jeKMio2SrFFiodr5pWT0Zp_DDPloGDVPxZjfxZinYsxSTLN9XGwhtl-d4THlyZkKxyllnyHaUAz_T8LbJcFDMrDNzXB30wBJabtTD5r_BJKVoeA</recordid><startdate>20140403</startdate><enddate>20140403</enddate><creator>Worrall, T.P</creator><creator>Dunbar, M.J</creator><creator>Extence, C.A</creator><creator>Laizé, C.L.R</creator><creator>Monk, W.A</creator><creator>Wood, P.J</creator><general>Taylor & Francis</general><general>Taylor & Francis Ltd</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7ST</scope><scope>7TG</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>SOI</scope></search><sort><creationdate>20140403</creationdate><title>identification of hydrological indices for the characterization of macroinvertebrate community response to flow regime variability</title><author>Worrall, T.P ; 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River flow regimes across lowland catchments in eastern England are examined using 47 variables, including those derived using the Indicators of Hydrologic Alteration (IHA) software. A principal component analysis method was used to identify redundant hydrological variables and those that best characterized the hydrological series (1986–2005). A small number of variables (<6) characterized up to 95% of the statistical variability in the flow series. The hydrological processes and conditions that the variables represent were found to be significant in structuring the in-stream macroinvertebrate community Lotic-invertebrate Index for Flow Evaluation (LIFE) scores at both the family and species levels. However, hydrological variables only account for a relatively small proportion of the total ecological variability (typically <10%). The research indicates that a range of other factors, including channel morphology and anthropogenic modification of in-stream habitats, structure riverine macroinvertebrate communities in addition to hydrology. These factors need to be considered in future environmental flow studies to enable the characterization of baseline/reference conditions for management and restoration purposes. Editor Z.W. Kundzewicz; Guest editor M. Acreman Citation Worrall, T.P., Dunbar, M.J., Extence, C.A., Laizé, C.L.R., Monk, W.A., and Wood, P.J., 2014. The identification of hydrological indices for the characterization of macroinvertebrate community response to flow regime variability. Hydrological Sciences Journal , 59 (3–4), 645–658.</abstract><cop>Abingdon</cop><pub>Taylor & Francis</pub><doi>10.1080/02626667.2013.825722</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | community response computer software débit environnemental ecohydrology ecological function ecosystems environmental flow Freshwater habitats hydro-morphologie hydrologic data hydromorphology inter-annual flow regime macroinvertebrates principal component analysis rivers régime inter-annuel des débits réponse de la communauté watersheds wood éco-hydrologie |
| title | identification of hydrological indices for the characterization of macroinvertebrate community response to flow regime variability |
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