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<br />the Kanab ambersnail may exist. Unoccupied potential habitat may <br />have harbored populations of the species in the past and should <br />be considered as reintroduction sites. if necessary. Additional <br />discovered or introduced populations of the species will increase <br />abundance and could maintain the species in the event of a <br />catastrophic loss of one or more of the existing populations. <br /> <br />4. Determine the bioloqical and ecoloqical factors which control the <br />distribution and vitalitv of Kanab ambersnail DODulations and the <br />interaction of the siqnificant biotic and abiotic elements of the <br />Kanab ambersnail and its critical habitat. <br /> <br />In depth research of the biology and ecology of the Kanab ambersnail <br />will assist in the determination of the factors controlling the <br />distribution and vitality of Kanab ambersnail populations and provide <br />direction in the management of the species population and habitat. <br />Knowledge is needed concerning the species life history. and its <br />ecological interaction with its environment. A determination of the <br />genetic variability for O. h. kanabensis populations in Arizona and <br />Utah and O. haydeni populations in Nebraska is needed to determine <br />uniqueness of the population and infraspecific relationships of the <br />species. This information is critical in evaluating the species <br />various populations for potential reintroductions into unoccupied <br />suitable habitats. <br /> <br />19 <br />