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Rick Overson and Laura Steger Invertebrate Observations (ASU-ROLS)

This data set is comprised of observations of invertebrates from North America with a focus in Arizona and northwestern Mexico. Observations were made by Laura Steger and Rick Overson. Odonate abundance for a survey reach is listed as single (1), rare (2-4), uncommon (5-12), common (13-100), or abundant (100+), unless otherwise noted. Please reach out to us if you have any questions about the data in this collection.

Contacts: Rick Overson, (ORCID #: 0000-0003-3728-6260)
Contacts: Laura Steger, (ORCID #: 0000-0002-0878-4132)
Collection Type: Observations
Management: Live Data managed directly within data portal
Global Unique Identifier: c7263105-7706-4d44-9384-8d0ef527a33a
Digital Metadata: EML File
Rights Holder: Rick Overson and Laura Steger
GBIF Dataset page:
Cite this collection:
Rick Overson and Laura Steger Invertebrate Observations. Occurrence dataset (ID: c7263105-7706-4d44-9384-8d0ef527a33a) accessed via the Ecdysis Portal,, 2024-04-24).
Collection Statistics
  • 537 specimen records
  • 537 (100%) georeferenced
  • 537 (100%) with images (596 total images)
  • 537 (100%) identified to species
  • 8 families
  • 33 genera
  • 94 species
  • 94 total taxa (including subsp. and var.)
Extra Statistics
Show Geographic Distribution
Show Family Distribution