Odonata monitoring is conducted in four shallow water ponds within the wetland ecosystems of PEI National Park. Park staff collect exuviae (the remains of aquatic larval stage exoskeleton) of metamorphosed larvae from the order odonata twice per year: in the early summer (June) and late summer (August) during peak emergence periods. The objective of the measure is to acquire baseline data on the species diversity and relative abundance of dragonflies and damselflies within wetlands of the national park. Taxonomic diversity and abundance are compared against historical levels to assess ecological integrity.