Foraging Behavior of Pachydiplax longipennis (Odonata: Libellulidae)

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Food intake, prey availability, and prey capture behavior at feeding areas were quantified in the dragonfly Pachydiplax longipennis by observing focal individuals on artificial perches, where they exhibited marked short-term site fidelity. Prey capture success was high and relatively constant, but the frequency and duration of feeding flights depended on the time of day and season (at least in part because of associated variation in temperature and other physical factors), study site, sex, density of other dragonflies, and prey density. Individuals rapidly responded temporally and spatially to changes in prey availability, particularly to localized prey concentrations.

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