Nrsi natural channel-presentation_2010_bdw1
Transcript of Nrsi natural channel-presentation_2010_bdw1
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The Role of a Terrestrial Ecologist in Natural Channel Design
Brett D. Woodman1 and Jack Imhoff2
1Terrestrial Ecologist, Natural Resource Solutions Inc.2 Senior Aquatic Ecologist, MNR
Natural Channel Systems
4th International Conference
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Overview
• Prior to channel design
– Background review
– Field surveys
– Existing Conditions Report
• Planting Plans
– Considerations for species selection
• Timing Windows and Impact Mitigation
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Background Information
• MNR
• Conservation Authority
• NHIC
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Ecological Land Classification (ELC)
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Other Surveys
• Breeding birds
• Frogs and toads (MMP)
• Salamanders
• Snakes
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Survey Times
• ELC: between May and September
• Salamanders: mid‐March – end of April
• Amphibians: 1 night in April, May and June
• Breeding birds: 2 visits more than ten days apart between June 1 and July 7
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Existing Conditions and Constraints
This is what you are all hoping for:
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When you don’t get the blank slate
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The Plants
• Not rare
• Not have high coefficient of conservatism (cc)
• Suitable soil moisture tolerance
• Collectively emulate a naturally occurring species assemblage
• Be available through local nurseries
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Timing Windows
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So What
• Who says we don’t know any better?
• The Role of Terrestrial
features on rivers
• (Carling Conservation Digest
– October 1947)
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Conclusion
Questions?