50 CFR - § 17.94-17.99 - Interagency Cooperation (Continued).

This Subpart I describes and details the areas defined as critical habitat for fishes, wildlife, plants and plants on the Hawaiian Islands, and therefore provides that all Federal agencies must insure that any action authorised, funded, or carried out by them is not likely to result in the destruction or adverse modification of the constituent elements essential to the conservation of the listed species. According to the Regulations, the Secretary of the Interior provides maps defining the boundaries of critical habitat, general descriptions of the locations and other helpful explanatory information. Concerning the various mammal species, this Subpart focuses on: various bats; polar bear, whose primary constituent elements of critical habitat are: sea ice habitat over the continental shelf of the mainland coasts of Alaska, with adequate prey resources, terrestrial denning habitat; woodland caribou; jaguar and other felines; various rodents; marine mammals; bighorn sheep. Concerning the various birds species, the Subpart analyses the breeding habitat, its hydrologic processes, insect prey populations, lands using protracted public land survey lines, forest species and types; and focuses on the following species: California Condor; various sandhill cranes; crows; cuckoos; Hawaiian birds; owls.
The Subpart analyses the physical and biological features essential to the conservation of various reptiles species, including sea and freshwater turtles: aquatic and terrestrial habitats, organic and natural inorganic structural features in the stream channels and in wetlands, water quality standards, presence of fish species and other aquatic predators. Concerning amphibians species, the Subpart focuses on palustrine herbaceous wetland, its vegetation and vegetation composition, aquatic breeding and non-breeding habitat, general description of various habitats. Concerning freshwater fishes, the Subpart concerns: the analysis of the water biological environment required for each particular life stage for each species, the food base of fish species consisting of aquatic plants and aquatic animals (insects), seasonal movements of fish species in response to changes of water temperature; concerning diadromous fishes, the Subpart focuses on the description of marine water ecosystem, marine nearshore areas and river basin ecosystem, as habitat of the following species: sturgeons, trouts. The Subpart provides description of critical habitats for clams and snails, arachnids and crustaceans.
Concerning critical habitats for plants, the Subpart covers flowering plants, and focuses on: invasive plant species; soil composition and quality; natural riparian drainages. The last paragraph of the Subpart focuses on the legal descriptions of the critical habitat units designated for the plant species of the Hawaiian Islands, and therefore describes: water system features, electrical power transmission lines and distribution.