Does restoration work? It depends on how we measure success
The restoration of 4 partial stream barriers was evaluated in watersheds of Terra Nova National Park, Newfoundland, Canada from 2009 to 2011. Brook trout ( n = 462) were tagged and tracked moving through our study sites using passive‐integrated transponder telemetry and the restoration actions were...
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Online Access: | http://dx.doi.org/10.1111/rec.12649 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Frec.12649 https://onlinelibrary.wiley.com/doi/pdf/10.1111/rec.12649 |
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crwiley:10.1111/rec.12649 2024-09-09T19:53:46+00:00 Does restoration work? It depends on how we measure success Mahlum, Shad Cote, David Wiersma, Yolanda F. Pennell, Curtis Adams, Blair Centre for forest science and innovation Parks Canada Action on the Ground Funding AMEC Foster Wheeler Natural Sciences and Engineering Research Council 2017 http://dx.doi.org/10.1111/rec.12649 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Frec.12649 https://onlinelibrary.wiley.com/doi/pdf/10.1111/rec.12649 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Restoration Ecology volume 26, issue 5, page 952-963 ISSN 1061-2971 1526-100X journal-article 2017 crwiley https://doi.org/10.1111/rec.12649 2024-08-27T04:26:49Z The restoration of 4 partial stream barriers was evaluated in watersheds of Terra Nova National Park, Newfoundland, Canada from 2009 to 2011. Brook trout ( n = 462) were tagged and tracked moving through our study sites using passive‐integrated transponder telemetry and the restoration actions were assessed using 3 different measures: passage success rates; the range of passable flows; and the availability of passable flows. We considered the observed results within a before‐after‐control‐impact (BACI) design that included reference reaches and pre‐restoration observations. The conclusions of BACI analyses were also contrasted with those that would have been obtained from commonly used before‐after (B‐A) or control‐impact (C‐I) study designs. While the restoration actions changed hydrological conditions in a way that should facilitate fish passage, our biological measures indicated that success was variable across culverts and within culverts depending on the measure evaluated. Furthermore, the natural temporal and spatial variability of fish movements often resulted in different conclusions between the more robust BACI design and the more commonly used B‐A and C‐I designs. Our results demonstrate that restoration of partial barriers may not always yield dramatic improvements. Furthermore, without suitable controls, the chances of drawing false conclusions regarding restorations in temporally and spatially dynamic systems are substantial. Article in Journal/Newspaper Newfoundland Wiley Online Library Canada Restoration Ecology 26 5 952 963 |
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English |
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The restoration of 4 partial stream barriers was evaluated in watersheds of Terra Nova National Park, Newfoundland, Canada from 2009 to 2011. Brook trout ( n = 462) were tagged and tracked moving through our study sites using passive‐integrated transponder telemetry and the restoration actions were assessed using 3 different measures: passage success rates; the range of passable flows; and the availability of passable flows. We considered the observed results within a before‐after‐control‐impact (BACI) design that included reference reaches and pre‐restoration observations. The conclusions of BACI analyses were also contrasted with those that would have been obtained from commonly used before‐after (B‐A) or control‐impact (C‐I) study designs. While the restoration actions changed hydrological conditions in a way that should facilitate fish passage, our biological measures indicated that success was variable across culverts and within culverts depending on the measure evaluated. Furthermore, the natural temporal and spatial variability of fish movements often resulted in different conclusions between the more robust BACI design and the more commonly used B‐A and C‐I designs. Our results demonstrate that restoration of partial barriers may not always yield dramatic improvements. Furthermore, without suitable controls, the chances of drawing false conclusions regarding restorations in temporally and spatially dynamic systems are substantial. |
author2 |
Centre for forest science and innovation Parks Canada Action on the Ground Funding AMEC Foster Wheeler Natural Sciences and Engineering Research Council |
format |
Article in Journal/Newspaper |
author |
Mahlum, Shad Cote, David Wiersma, Yolanda F. Pennell, Curtis Adams, Blair |
spellingShingle |
Mahlum, Shad Cote, David Wiersma, Yolanda F. Pennell, Curtis Adams, Blair Does restoration work? It depends on how we measure success |
author_facet |
Mahlum, Shad Cote, David Wiersma, Yolanda F. Pennell, Curtis Adams, Blair |
author_sort |
Mahlum, Shad |
title |
Does restoration work? It depends on how we measure success |
title_short |
Does restoration work? It depends on how we measure success |
title_full |
Does restoration work? It depends on how we measure success |
title_fullStr |
Does restoration work? It depends on how we measure success |
title_full_unstemmed |
Does restoration work? It depends on how we measure success |
title_sort |
does restoration work? it depends on how we measure success |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/rec.12649 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Frec.12649 https://onlinelibrary.wiley.com/doi/pdf/10.1111/rec.12649 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Restoration Ecology volume 26, issue 5, page 952-963 ISSN 1061-2971 1526-100X |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/rec.12649 |
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Restoration Ecology |
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26 |
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5 |
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952 |
op_container_end_page |
963 |
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1809923221110128640 |