Landscape influences on stream biotic integrity assessed at multiple spatial scales
Identifieur interne : 001082 ( Istex/Corpus ); précédent : 001081; suivant : 001083Landscape influences on stream biotic integrity assessed at multiple spatial scales
Auteurs : Nancy E. Roth ; J. David Allan ; Donna L. EricksonSource :
- Landscape Ecology [ 0921-2973 ] ; 1996-06-01.
Abstract
Abstract: The biological integrity of stream ecosystems depends critically on human activities that affect land use/cover along stream margins and possibly throughout the catchment. We evaluated stream condition using an Index of Biotic Integrity (IBI) and a habitat index (HI), and compared these measures to landscape and riparian conditions assessed at different spatial scales in a largely agricultural Midwestern watershed. Our goal was to determine whether land use/cover was an effective predictor of stream integrity, and if so, at what spatial scale. Twenty-three sites in first-through third-order headwater streams were surveyed by electrofishing and site IBIs were calculated based on ten metrics of the fish collection. Habitat features were characterized through field observation, and site HIs calculated from nine instream and bank metrics. Field surveys, aerial photograph interpretation, and geographic information system (GIS) analyses provided assessments of forested land and other vegetation covers at the local, reach, and regional (catchment) scales. The range of conditions among the 23 sites varied from poor to very good based on IBI and HI scores, and habitat and fish assemblage measures were highly correlated. Stream biotic integrity and habitat quality were negatively correlated with the extent of agriculture and positively correlated with extent of wetlands and forest. Correlations were strongest at the catchment scale (IBI with % area as agriculture, r2=0.50, HI with agriculture, r2=0.76), and tended to become weak and non-significant at local scales. Local riparian vegetation was a weak secondary predictor of stream integrity. In this watershed, regional land use is the primary determinant of stream conditions, able to overwhelm the ability of local site vegetation to support high-quality habitat and biotic communities.
Url:
DOI: 10.1007/BF02447513
Links to Exploration step
ISTEX:887195DD87A7BBCF5C0D98E41F889BCB88FAFAF8Le document en format XML
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Erickson</name><affiliation><mods:affiliation>School of Natural Resources and Environment, The University of Michigan, 48109-1115, Ann Arbor, Michigan, USA</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Landscape Ecology</title><title level="j" type="abbrev">Landscape Ecol</title><idno type="ISSN">0921-2973</idno><idno type="eISSN">1572-9761</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1996-06-01">1996-06-01</date><biblScope unit="volume">11</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="141">141</biblScope><biblScope unit="page" to="156">156</biblScope></imprint><idno type="ISSN">0921-2973</idno></series><idno type="istex">887195DD87A7BBCF5C0D98E41F889BCB88FAFAF8</idno><idno type="DOI">10.1007/BF02447513</idno><idno type="ArticleID">BF02447513</idno><idno type="ArticleID">Art2</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0921-2973</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: The biological integrity of stream ecosystems depends critically on human activities that affect land use/cover along stream margins and possibly throughout the catchment. We evaluated stream condition using an Index of Biotic Integrity (IBI) and a habitat index (HI), and compared these measures to landscape and riparian conditions assessed at different spatial scales in a largely agricultural Midwestern watershed. Our goal was to determine whether land use/cover was an effective predictor of stream integrity, and if so, at what spatial scale. Twenty-three sites in first-through third-order headwater streams were surveyed by electrofishing and site IBIs were calculated based on ten metrics of the fish collection. Habitat features were characterized through field observation, and site HIs calculated from nine instream and bank metrics. Field surveys, aerial photograph interpretation, and geographic information system (GIS) analyses provided assessments of forested land and other vegetation covers at the local, reach, and regional (catchment) scales. The range of conditions among the 23 sites varied from poor to very good based on IBI and HI scores, and habitat and fish assemblage measures were highly correlated. Stream biotic integrity and habitat quality were negatively correlated with the extent of agriculture and positively correlated with extent of wetlands and forest. Correlations were strongest at the catchment scale (IBI with % area as agriculture, r2=0.50, HI with agriculture, r2=0.76), and tended to become weak and non-significant at local scales. Local riparian vegetation was a weak secondary predictor of stream integrity. In this watershed, regional land use is the primary determinant of stream conditions, able to overwhelm the ability of local site vegetation to support high-quality habitat and biotic communities.</div></front></TEI><istex><corpusName>springer</corpusName><author><json:item><name>Nancy E. Roth</name><affiliations><json:string>School of Natural Resources and Environment, The University of Michigan, 48109-1115, Ann Arbor, Michigan, USA</json:string></affiliations></json:item><json:item><name>J. David Allan</name><affiliations><json:string>School of Natural Resources and Environment, The University of Michigan, 48109-1115, Ann Arbor, Michigan, USA</json:string></affiliations></json:item><json:item><name>Donna L. Erickson</name><affiliations><json:string>School of Natural Resources and Environment, The University of Michigan, 48109-1115, Ann Arbor, Michigan, USA</json:string></affiliations></json:item></author><articleId><json:string>BF02447513</json:string><json:string>Art2</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>OriginalPaper</json:string></originalGenre><abstract>Abstract: The biological integrity of stream ecosystems depends critically on human activities that affect land use/cover along stream margins and possibly throughout the catchment. We evaluated stream condition using an Index of Biotic Integrity (IBI) and a habitat index (HI), and compared these measures to landscape and riparian conditions assessed at different spatial scales in a largely agricultural Midwestern watershed. Our goal was to determine whether land use/cover was an effective predictor of stream integrity, and if so, at what spatial scale. Twenty-three sites in first-through third-order headwater streams were surveyed by electrofishing and site IBIs were calculated based on ten metrics of the fish collection. Habitat features were characterized through field observation, and site HIs calculated from nine instream and bank metrics. Field surveys, aerial photograph interpretation, and geographic information system (GIS) analyses provided assessments of forested land and other vegetation covers at the local, reach, and regional (catchment) scales. The range of conditions among the 23 sites varied from poor to very good based on IBI and HI scores, and habitat and fish assemblage measures were highly correlated. Stream biotic integrity and habitat quality were negatively correlated with the extent of agriculture and positively correlated with extent of wetlands and forest. Correlations were strongest at the catchment scale (IBI with % area as agriculture, r2=0.50, HI with agriculture, r2=0.76), and tended to become weak and non-significant at local scales. Local riparian vegetation was a weak secondary predictor of stream integrity. 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We evaluated stream condition using an Index of Biotic Integrity (IBI) and a habitat index (HI), and compared these measures to landscape and riparian conditions assessed at different spatial scales in a largely agricultural Midwestern watershed. Our goal was to determine whether land use/cover was an effective predictor of stream integrity, and if so, at what spatial scale. Twenty-three sites in first-through third-order headwater streams were surveyed by electrofishing and site IBIs were calculated based on ten metrics of the fish collection. Habitat features were characterized through field observation, and site HIs calculated from nine instream and bank metrics. Field surveys, aerial photograph interpretation, and geographic information system (GIS) analyses provided assessments of forested land and other vegetation covers at the local, reach, and regional (catchment) scales. The range of conditions among the 23 sites varied from poor to very good based on IBI and HI scores, and habitat and fish assemblage measures were highly correlated. Stream biotic integrity and habitat quality were negatively correlated with the extent of agriculture and positively correlated with extent of wetlands and forest. Correlations were strongest at the catchment scale (IBI with % area as agriculture, r2=0.50, HI with agriculture, r2=0.76), and tended to become weak and non-significant at local scales. Local riparian vegetation was a weak secondary predictor of stream integrity. 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DisplayOrder="Western"><GivenName>J.</GivenName><GivenName>David</GivenName><FamilyName>Allan</FamilyName></AuthorName></Author><Author AffiliationIDS="Aff1"><AuthorName DisplayOrder="Western"><GivenName>Donna</GivenName><GivenName>L.</GivenName><FamilyName>Erickson</FamilyName></AuthorName></Author><Affiliation ID="Aff1"><OrgDivision>School of Natural Resources and Environment</OrgDivision><OrgName>The University of Michigan</OrgName><OrgAddress><Postcode>48109-1115</Postcode><City>Ann Arbor</City><State>Michigan</State><Country>USA</Country></OrgAddress></Affiliation><Affiliation ID="Aff2"><OrgDivision>Office of Wetlands, Oceans, and Watersheds</OrgDivision><OrgName>U.S. Environmental Protection Agency</OrgName><OrgAddress><Street>401 M Street SW</Street><Postcode>20460</Postcode><City>Washington D.C.</City><Country>USA</Country></OrgAddress></Affiliation></AuthorGroup><Abstract ID="Abs1" Language="En"><Heading>Abstract</Heading><Para>The biological integrity of stream ecosystems depends critically on human activities that affect land use/cover along stream margins and possibly throughout the catchment. We evaluated stream condition using an Index of Biotic Integrity (IBI) and a habitat index (HI), and compared these measures to landscape and riparian conditions assessed at different spatial scales in a largely agricultural Midwestern watershed. Our goal was to determine whether land use/cover was an effective predictor of stream integrity, and if so, at what spatial scale. Twenty-three sites in first-through third-order headwater streams were surveyed by electrofishing and site IBIs were calculated based on ten metrics of the fish collection. Habitat features were characterized through field observation, and site HIs calculated from nine instream and bank metrics. Field surveys, aerial photograph interpretation, and geographic information system (GIS) analyses provided assessments of forested land and other vegetation covers at the local, reach, and regional (catchment) scales.</Para><Para>The range of conditions among the 23 sites varied from poor to very good based on IBI and HI scores, and habitat and fish assemblage measures were highly correlated. Stream biotic integrity and habitat quality were negatively correlated with the extent of agriculture and positively correlated with extent of wetlands and forest. Correlations were strongest at the catchment scale (IBI with % area as agriculture, r<Superscript>2</Superscript>=0.50, HI with agriculture, r<Superscript>2</Superscript>=0.76), and tended to become weak and non-significant at local scales. Local riparian vegetation was a weak secondary predictor of stream integrity. In this watershed, regional land use is the primary determinant of stream conditions, able to overwhelm the ability of local site vegetation to support high-quality habitat and biotic communities.</Para></Abstract></ArticleHeader><NoBody></NoBody></Article></Issue></Volume></Journal></Publisher></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Landscape influences on stream biotic integrity assessed at multiple spatial scales</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Landscape influences on stream biotic integrity assessed at multiple spatial scales</title></titleInfo><name type="personal"><namePart type="given">Nancy</namePart><namePart type="given">E.</namePart><namePart type="family">Roth</namePart><affiliation>School of Natural Resources and Environment, The University of Michigan, 48109-1115, Ann Arbor, Michigan, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal" displayLabel="corresp"><namePart type="given">J.</namePart><namePart type="given">David</namePart><namePart type="family">Allan</namePart><affiliation>School of Natural Resources and Environment, The University of Michigan, 48109-1115, Ann Arbor, Michigan, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Donna</namePart><namePart type="given">L.</namePart><namePart type="family">Erickson</namePart><affiliation>School of Natural Resources and Environment, The University of Michigan, 48109-1115, Ann Arbor, Michigan, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="OriginalPaper"></genre><originInfo><publisher>Kluwer Academic Publishers</publisher><place><placeTerm type="text">Dordrecht</placeTerm></place><dateIssued encoding="w3cdtf">1996-06-01</dateIssued><copyrightDate encoding="w3cdtf">1996</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Abstract: The biological integrity of stream ecosystems depends critically on human activities that affect land use/cover along stream margins and possibly throughout the catchment. We evaluated stream condition using an Index of Biotic Integrity (IBI) and a habitat index (HI), and compared these measures to landscape and riparian conditions assessed at different spatial scales in a largely agricultural Midwestern watershed. Our goal was to determine whether land use/cover was an effective predictor of stream integrity, and if so, at what spatial scale. Twenty-three sites in first-through third-order headwater streams were surveyed by electrofishing and site IBIs were calculated based on ten metrics of the fish collection. Habitat features were characterized through field observation, and site HIs calculated from nine instream and bank metrics. Field surveys, aerial photograph interpretation, and geographic information system (GIS) analyses provided assessments of forested land and other vegetation covers at the local, reach, and regional (catchment) scales. The range of conditions among the 23 sites varied from poor to very good based on IBI and HI scores, and habitat and fish assemblage measures were highly correlated. Stream biotic integrity and habitat quality were negatively correlated with the extent of agriculture and positively correlated with extent of wetlands and forest. Correlations were strongest at the catchment scale (IBI with % area as agriculture, r2=0.50, HI with agriculture, r2=0.76), and tended to become weak and non-significant at local scales. Local riparian vegetation was a weak secondary predictor of stream integrity. 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|texte= Landscape influences on stream biotic integrity assessed at multiple spatial scales
}}
| This area was generated with Dilib version V0.6.28. |  |