Odonata Exuviae Monitoring in Prince Edward Island National Park

Parks Canada staff collect exuviae from dragonflies and damselflies in four shallow water ponds twice per year during peak emergence periods. The objective is to acquire baseline data on species diversity and relative abundance within park wetlands. Taxonomic diversity and abundance are compared against historical levels to assess ecological integrity.

Use Cases

• Analyze species diversity trends from exuviae collection data to monitor wetland ecological integrity.
• Compare relative abundance of Odonata species between early summer (June) and late summer (August) sampling periods.
• Use baseline exuviae data to assess changes in dragonfly and damselfly populations against historical levels.

Strengths

• Data collected by Parks Canada staff, an authoritative source for national park monitoring.
• Systematic sampling conducted twice per year during peak emergence periods for consistent data capture.
• Focuses on four specific shallow water pond sites within Prince Edward Island National Park wetlands.

Limitations

• Sample size and row count are unknown, limiting statistical power for analysis.
• Geographic scope is limited to four ponds within a single national park, not representative of broader regions.
• Data collection method (exuviae counts) may not capture total adult population or species present outside emergence zones.

Provenance

Source

Parks Canada

Collection Method

Park staff collect exuviae (larval exoskeleton remains) from metamorphosed Odonata larvae.

Time Range

Sampling occurs in June and August annually; specific start year unknown.

Freshness

Last updated March 2026, indicating recent data maintenance.

Geography

Four shallow water ponds within the wetland ecosystems of Prince Edward Island National Park, Canada.