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<br />Minimum viable population studies will document demographic stability <br />of the species population. If. as a consequence of these studies. <br />other factors. natural or man caused. are identified as possibly <br />having a detrimental effect on the species population which would <br />preclude its eventual delisting. those factors will be addressed and <br />the recovery plan revised to accommodate them. Little is known <br />concerning natural threats such as disease. parasitism. and predation <br />by native species on the Kanab ambersnail. No known diseases have <br />been reported in this species. Moderate to heavy domestic livestock <br />grazing may have an impact to the Kanab ambersnail by reducing the <br />vegetative cover necessary to protect the species from excessive <br />predation. It is not known if the populations of Kanab ambersnail are <br />at population levels that will assure long term' demographic and <br />genetic viability. <br /> <br />;Ii <br />~I <br /> <br />t' <br />t\. <br />r <br />J <br />"I <br />I <br />~I <br />I <br />'~'~k'\ <br />'~: I <br />,,1 <br />,'i, <br />~: <br />( <br />f' <br />;.) <br />b <br />f- <br />t,: <br />~.;.:. <br />.V\ <br /> <br />5. Establish and conduct minimum viable population studies in each of the <br />popUlations of the Kanab ambersnail. <br /> <br />5.1 Establish a minimum viable population study on the Three Lakes <br />Canyon population of the Kanab ambersnail. <br /> <br />~~t~~ <br />I _~ <br />~ji: <br />,"':!i.. <br />?~t <br />~ <br />'~ <br />';~!i'_~ <br />?~~ <br />~':j <br />~ <br />'1,;" <br />~~ <br />;~i <br /> <br /> <br />Minimum viable population monitoring sites will be established <br />strategically within the Three Lakes Canyon population so that <br />the total variation of habitat types and degree of habitat use <br />will be represented in the monitoring sites. <br /> <br />20 <br />