Criteria to infer local species residency in standardized adult dragonfly surveys

  title={Criteria to infer local species residency in standardized adult dragonfly surveys},
  author={Jason T. Bried and Amanda M. Dillon and Barbara J. Hager and Michael A. Patten and Barney Luttbeg},
For dragonflies, the final exuviae are the most identifiable nymphal stage, can substitute for lethal processing of live animals, and definitively indicate life-cycle completion or reproductive success. However, dragonfly exuviae are difficult to find and identify relative to adults, and species richness in exuvial surveys is generally biased low. We tested readily acquired information in adult surveys as indicators of exuviae presence and, therefore, species residency. Repeated concurrent… CONTINUE READING

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