Laserfiche WebLink
Page 80 <br />APPENDIX D <br />Definitions <br />Endemic -Native to or confined to a certain region. <br /> <br />Management Unit - A distinct area within Utah defined by the USGS's 4-digit Hydrologic Unit <br />Cataloguing system. All roundtail chub, flannelmouth sucker, and bluehead sucker in a <br />management unit will be considered one population for purposes of this Plan. As more <br />information is gathered, this management unit delineation may change. <br />Historical Range -The area that a species is known or perceived to have inhabited prior to <br />1985. This plan utilizes historic ranges for the three species found in Bezzerides and Bestgen <br />(2002) and only slightly modified with further information. <br />HUC Hydrologic Unit Code - A hierarchical unique identifier for each hydrologic basin within <br />the United States. <br />Hybrid -The offspring of genetically dissimilar parents or stock; the offspring produced by . <br />breeding fish of different varieties, species, or races. Varying degrees of hybridization occur <br />among populations, hence some hybridized populations, if produced among native species, may <br />offer genetic and ecological value to three species conservation efforts. <br />Metapopulation - A collection of localized populations that are geographically distinct yet are <br />genetically interconnected through natural movement of individuals among populations. ~ <br />Nonnative - A species that historically did not occur or did not originate in a specific area or <br />habitat, but was introduced via human intervention. <br />Paraphyletic -Composed of some but not all members descending from a common ancestor. ~ <br />Persistence -Continuance of an effect after the cause is removed. The continued self- <br />sufficiency of a population after conservation measures have ceased. <br />Population -Individuals occurring in a geographically discrete system or members of a ~ <br />genetically distinct group. <br />Self-sustaining population - A population that exists in sufficient numbers in a natural <br />ecosystem to maintain its levels through time without active management. For purposes of this <br />document, a population where multiple year classes have been observed, including young-of- ~ <br />year. <br />1 <br /> <br />