ʻŌhiʻa resistance, genetic conservation & resistant-stock development

Names and classification

Record type

intervention

Kauaʻi occurrence and status

Recorded state

Available, active, proposed or context-dependent

Conservation interventions

Action definition

Preserve ʻōhiʻa genetic diversity and develop/reinforce disease-resistant material where evidence supports it

Mechanism of action

Identify resistant individuals, conserve germplasm, test resistance and eventually use appropriate stock in restoration

Prerequisites

Long-term trials; genetic provenance; disease screening; nursery capacity

Implementation context

Research/propagation programs and future restoration sites

Expected outcomes

Greater persistence of ʻōhiʻa-dominated forest under disease pressure

Monitoring design

Resistance test survival; genetic representation; field-trial survival; disease incidence

Unintended consequences

Poorly matched stock could reduce local adaptation; resistance may be pathogen-specific

Implementation limits

Implementation status, cost and efficacy must be tied to a dated place/program record.

Sources and further reading

• https://dlnr.hawaii.gov/hisc/rapid-ohia-death-rod/

Connected Atlas records

• Rapid ʻŌhiʻa Death · Threats & Conservation