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-~: t ~ Threatened,- A wildlife population is rated threatened when the individ- ~~ uala constituting the population exist in :uch small numbers or are so restricted in their general distribution that they may become endangered, . c ~ Common.- A population is considered common when its level is compatible with the existing habitat and is currently secure because its essential habitat is .not threatened by environmental degradation, p ~ Peripheral,- A peripheral population is one vhieh, because of being on the perimeter of its normal geographical range, occurs in low numbers, Although not endangered or threatened in its Population distribution as a whole, peripheral populations are subject to becoming endangered by relatively minor changes in their habitats. Such populations are seldom of substantial state interest unless habitat enhancement measures will result in their status being upgraded. u ~ Undetermined or unknown. Column 4, Recommend for Select Species List. Species recommended here are candidate species for a select list vhieh will be determined by an established review and selection procedure, Detailed information will be developed for each species on the select list for the purpose of identifying significant wildlife habitats to be pro- tected under the provisions of H.B. 1041. In addition to indicating vhieh species you recommend for inclusion on the select . list, you should rank these numerically, starting with Number 1 for the species you consider most important, and continuing .on to those you consider less important. The following criteria should be considered in determining candidate species for the select Iist: (1) General distribution of the species should be yell enough known that it can be mapped, (2) Biological features of the species' local distribution should be known or such information should be readily obtainable, These biological features, which may not apply to all species and may be more important for some than others, include the following: production areas, prin- cipal feeding areas, summer ranges, winter ranges, concentration areas, shelter areas, eater and mineral requirements,, movement corridors, buffer zones and special habitat needs. (3) Species should have positive economical, social, educational or ecolo- gical values, (4) Species designated as an official state or federal animal, i.e., bighorn sheep, lark bunting and bald eagle, should be included, (5) Species which are unique in their Colorado distribution, i.e., found `~ in only one or a few areas, should be included. (6) Include species To assist you in the check list, on official federal or state list of endangered species. this regard, a list of endangered species is appended to - 140 - (Rev. 5/86)