1988
DOI: 10.1111/j.1523-1739.1988.tb00168.x
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Conservation and Distribution of Genetic Variation in a Polytypic Species, the Cutthroat Trout

Abstract: The cutthroat trout (Salmo c1arki)present.s a series of unusual and difficult problems in conservation biology. As many as 16 subspecies have been recognized in the recent literature. The genetic distance between subspecies based upon 46 enzyme loci ranges from that usually seen between congeneric species to virtual genetic identity. Subspecies from the western portion of the range of the cutthroat trout are genetically more similar to rainbow trout (Salmo gairdneri) than they are to the other subspecies of cu… Show more

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Cited by 352 publications
(349 citation statements)
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References 65 publications
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“…Fish andWildlife Service 1998b). Some species such as westslope cutthroat trout and bull trout can show substantial genetic and phenotypic divergence among tributaries within a Table_1-Four questions to consider when evaluating the tradeoff of managing native salmonid populations using barriers to isolate them from invasions (after Dunham and others 2002a, S. Dunham unpublished ), arguing for conserving distinct populations at this scale as well (Allendorf and Leary 1988, Leary and others 1998, Quinn and others 2001, Hendry and others 2004b. From this perspective, evolutionary conservation values are highest for distinct populations that represent a substantial or unique portion of extant genetic diversity, occupy unique or remnant habitats, or exhibit diverse or unusual life histories (Allendorf and others 1997, Halupka and others 2003, Shepard and others 2005.…”
Section: Conservation_valuesmentioning
confidence: 99%
“…Fish andWildlife Service 1998b). Some species such as westslope cutthroat trout and bull trout can show substantial genetic and phenotypic divergence among tributaries within a Table_1-Four questions to consider when evaluating the tradeoff of managing native salmonid populations using barriers to isolate them from invasions (after Dunham and others 2002a, S. Dunham unpublished ), arguing for conserving distinct populations at this scale as well (Allendorf and Leary 1988, Leary and others 1998, Quinn and others 2001, Hendry and others 2004b. From this perspective, evolutionary conservation values are highest for distinct populations that represent a substantial or unique portion of extant genetic diversity, occupy unique or remnant habitats, or exhibit diverse or unusual life histories (Allendorf and others 1997, Halupka and others 2003, Shepard and others 2005.…”
Section: Conservation_valuesmentioning
confidence: 99%
“…Endangered Species Act has stimulated greater interest in these topics. To date, most of these cases have involved non-avian taxa (e.g., Allendorf and Leary 1988;Bernatchez 1995;Firestone et al 1999;Parker et al 1999;Roman et al 1999; although see Avise and Nelson 1989;Young and Allard 1997;Nelson et al 2000;Zink et al 2000). In this study, we examine population structure as well as relationships within and among geographically-defined subspecies for a threatened avian species with little morphological variation yet historical divergence among subspecies.…”
Section: Introductionmentioning
confidence: 99%
“…Allendorf et al (2001) used a slightly different definition; they specified that all individuals in a hybrid swarm must be hybrids. Finally, Allendorf and Leary (1988) provided the most strict definition; they defined a hybrid swarm as a population in which all individuals in the population have the same amount of non-native ancestry (that is, m d = 1). All of these definitions may be useful, but in some circumstances it may be more useful to quantify how well mixed non-native genes are in a population rather than to classify a population as being a hybrid swarm or not.…”
Section: Discussionmentioning
confidence: 99%