For purposes of sections 37-1401 to 37-1408: (1) Commission shall mean the Game and Parks Commission;
(2) Natural area shall mean an area of land or water, whether publicly or privately owned, which retains to some degree its primeval character, though it need not be completely natural and undisturbed, or has natural flora, fauna, or ecological features of scientific or educational interest;
(3) Participating cooperators shall mean any nonprofit conservation organizations or public agencies which enter into agreements pursuant to section 37-1405; and
(4) Register shall mean the Nebraska Natural Areas Register created pursuant to sections 37-1403 to 37-1407.