- Research Article
1
- 10.48044/jauf.2025.006
Identifying Essential Selection Criteria and Program Components to Improve Hawai‘i’s Exceptional Tree Program Based on Expert Consensus
- Feb 10, 2025
- Arboriculture & Urban Forestry
- Myles Ritchie + 1 more +1
Abstract Background Hawai‘i’s exceptional trees are currently identified based on 7 selection criteria established in 1975. These criteria and their corresponding program components have remained stagnant with minimal improvements since the program’s inception. This study builds upon previous exceptional (aka “heritage,” “significant,” “champion,” “monumental,” “notable,” etc.) tree research conducted in other geographic locations in an attempt to discover if consensus exists regarding how these trees of importance should be identified, managed, and protected. Methods A panel of 13 experts from around the state were presented 45 exceptional tree selection criteria and several program components using a 3-iteration Delphi method to determine if consensus exists on which selection criteria and program components should be used by Hawai‘i’s Exceptional Tree Program. Results The results identified 33 exceptional tree selection criteria and 5 program components (i.e., protection mechanisms, private property exceptional tree maintenance costs, funding, public education and outreach, and program management best practices) recommended by the expert panel, as well as examples of how each should be implemented to improve the efficacy of this conservation program. Conclusions These findings add to a growing body of exceptional tree research designed to identify, recognize, and protect a region’s most valued trees, while also having applicability to urban forestry programs more broadly.
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