Link to Macaulay Land Use Research Institute homepageCatchment Management
Linking Hydromorphology to Ecology

Break-out session 3. Restoring ecology through hydromorphology (covering topic 6)

Group A

Group B

Group C

Final wrap up thoughts

Group A:

What is the most efficient cost-benefit approach for best ecological and hydromorphological outcomes?

  • Perceived vs actual ecological benefit
  • Site specific
  • Role of science?
    • All experiments
    • Transferability
    • Assessment
  • Clearer objectives – success - monitoring
    • Hydromorophology
    • Ecology
    • Socio-economic
  • Predictive models
  • Hierarchy approaches
    • Incentive
    • Regulation
  • Holistic Approaches possible
    • Land ownership is limiting
  • How to prioritize?
    • GIS-DEM, LiDAR, network model
    • Where should habitats be?
    • Are they there?
  • Who does restoration?
    • Scotland – fish biologists
    • England – Natural England, River Trust
    • States –
      • many fish (allegedly!)
      • East coast, WQ, low sediment issues
      • Often fish biologists in regulation
    • Sweden
      • Restoration, acidification, restocking, liming, small scale habitat improvements
  • What are benefits to wider biodiversity of fish restoration?
  • Multiple-use
    • Flood control
    •  Ecology
  • Series of small projects artificially grouped into larger projects; pretend integration
  • Western US
    • Declining fish
    • Political expediency
    • Doesn’t deal with main problem, no water
  • RBMP
    • Prioritization
    • But monitoring?
    • Lack of tools for national strategy
  • East Coast US
    • Mussels (gulf of mexico)
    • Role of subsidy of land use
    • Benefits not near those paying costs
  • Japan
    • Downstream pays upstream
  • Learning from failure
    • Calfed
      • pretends multi-function, but actually fish focused
      • No feedback on performance, planning
      • Governance
      • No monitoring – none, too short (20-30 years)
      • Justify spending
  • Need for adaptive strategy?
  • Need for adaptive strategy
  • Lack system approach, prioritization and limiting factors
  • No one giving up resource, unrealistic
    • Win-win is a myth
  • Fear of failure – needs to be reported to learn
  • Mitigation vs restoration.

 

Group B:

How much restoration do we need to create a healthy ecosystem?

Redefine a “healthy” ecosystem as “functioning in a regionally relevant context”. Attributes of healthy ecosystem are

  • Resilient
  • Self-sustaining
  • Stable but dynamic (not static)
  • Diverse physically and biologically
  • Connected

Approaches to estimating how much is enough?

  • For species, identify bottlenecks and critical habitats
  • Quantify functional groups or trait groups
  • Focal species approaches
  • Identify processes that must be restored to achieve goals

Enough is: spatial, temporal, and functional

  • Limiting factors addressed
  • Habitat available and accessible at important times
  • At least some of each environments is functioning and connected
  • Enough restoration of the right types that the outcome is greater than the sum of the parts

How do we know when we get there?

  • Need measurable objectives

 

Group C:

How can we achieve effective monitoring and evaluation of ecologically-based river restoration efforts?

  1. Why on earth…?
  2. Timescale for restoration/monitoring/event capturing
    1. Ecologically and morphologically relevant
  3. Science documents, existing knowledge
  4. Quantification dej/ challenges
  5. Feedback during process
  6. Value of monitoring: compliance vs objective/target oriented
    1. Learning process
  7. Consider concepts of ecosystems (not just target species)
  8. Lack of baseline data; reasonable, meaningful data
  9. Budget
  10. External controls considering
  11. Post monitoring framework needed
  12. Future changes
  13. Maintenance
    1. 3 elements of monitoring/evaluation
      1. implemented (….)?
      2. reasonable, clear objectives?
      3. Long-term success?

 

Workshop was successful in getting agreement on overall objective for monitoring/evaluation

  • Process – considered in monitoring and assessment
  • Ensembles f evaluation parameters
  • Don’t be shy of quantitative measures

Facit:

  • We basically know what to do but…
    • Showstoppers include landowners, implementation, conflicts of interest
    • Need to package the knowledge so that implementation is possible

 

Final wrap up thoughts

Final thoughts from the group

  • Monitoring bank
  • Capture experiences
  • Project evaluation
  • Responsibilities/funding
  • Monitoring can be made compulsory
    • Precedent from EIA
  • Integrated research requirements
    • Role of existing organizations and restoration centers
  • Utility of failures
  • Small uncoordinated projects
  • Meta analysis

Next steps from the group

  • Feedback to UKTAG Rivers – R. Owen
  • AGU/EGU session
  • Special issue of a journal
  • Coordinated case studies?
  • What about other regions?

Back to Ballater workshop page

 

 

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Updated: 23 Jan 2024, Content by: HM