As used in this rule:
"Endangered species" means any species of fish, plant life, or wildlife which is in danger of extinction throughout all or a significant part of its range.
"Special concern species" means any species about which problems of status or distribution are suspected, but not documented, and for which no special protection is afforded under this rule.
"Threatened species" means any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range.
Iowa Admin. Code r. 571-77.1