Dragonflies are indicators of healthy wetlands, and their welfare is tied to water quality and the preservation of aquatic habitats.
Dragonfly larvae are sensitive to water pollution and can suffer and die from chemical contamination. Their nervous systems are complex enough to respond to noxious stimuli. Wetland drainage eliminates entire populations. Agricultural runoff and excess nutrients cause hypoxic conditions in water where larvae suffocate. Protecting wetlands directly protects these animals.