Investigating public preferences for managing Lake Champlain using a choice experiment.

Area of Science:

• Environmental Management
• Ecological Economics
• Conservation Science

Background:

• The Lake Champlain Basin faces complex, transboundary management challenges.
• A comprehensive management plan addresses 11 goals across diverse issue areas.
• Current efforts prioritize water clarity through phosphorus reduction.

Purpose of the Study:

• To investigate public preferences for alternative management scenarios in the Lake Champlain Basin.
• To understand tradeoffs between ecosystem attributes influencing public choice.
• To inform ecosystem management for enhanced public support and social benefits.

Main Methods:

• A choice experiment was designed using an orthogonal fractional factorial design.
• Five ecosystem attributes (water clarity, beach closures, land use, fish advisories, invasive species) were varied.
• 2,000 questionnaires with 9 paired comparisons each were distributed; 6,541 responses were analyzed using binary logistic regression.

Main Results:

• Safe fish consumption emerged as the strongest predictor of public choice.
• Water clarity and beach closures were important, but secondary to fish safety.
• Land use patterns and invasive water chestnut spread were significant, with preference for less development and agricultural preservation.

Conclusions:

• Public preferences indicate a need to shift management focus towards ensuring safe fish consumption.
• Choice experiments offer richer data than traditional surveys for understanding management tradeoffs.
• Findings can guide ecosystem management to better align with public values and maximize social benefits.