Megalagrion oceanicum
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Megalagrion oceanicum faces severe threats from habitat destruction as native Hawaiian stream ecosystems are degraded by invasive plant species and altered hydrology. The introduction of non-native fish species has disrupted aquatic food webs, while urban development and agricultural runoff have compromised water quality in the limited stream systems where this damselfly persists. Climate change poses an additional threat through altered precipitation patterns that could further reduce suitable aquatic habitat.
Habitat
This endemic Hawaiian damselfly inhabits pristine native stream systems with intact riparian forest canopy, requiring clean flowing water with appropriate substrate for larval development. The species is restricted to undisturbed montane and lowland streams on specific Hawaiian islands where native vegetation provides essential microhabitat conditions.
