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• W2044176073 abstract "Abstract The dispersal ecology of most stream fishes is poorly characterised, complicating conservation efforts for these species. We used microsatellite DNA marker data to characterise dispersal patterns and effective population size ( N e ) for a population of R oanoke logperch P ercina rex , an endangered darter ( P ercidae). Juveniles and candidate parents were sampled for 2 years at sites throughout the R oanoke R iver watershed. Dispersal was inferred via genetic assignment tests ( AT s), pedigree reconstruction ( PR ) and estimation of lifetime dispersal distance under a genetic isolation‐by‐distance model. Estimates of N e varied from 105 to 1218 individuals, depending on the estimation method. Based on PR , polygamy was frequent in parents of both sexes, with individuals spawning with an average of 2.4 mates. The sample contained 61 half‐sibling pairs, but only one parent–offspring pair and no full‐sib pairs, which limited our ability to discriminate natal dispersal of juveniles from breeding dispersal of their parents between spawning events. Nonetheless, all methods indicated extensive dispersal. The AT indicated unrestricted dispersal among sites ≤15 km apart, while siblings inferred by the PR were captured an average of 14 km and up to 55 km apart. Model‐based estimates of median lifetime dispersal distance (6–24 km, depending on assumptions) bracketed AT and PR estimates, indicating that widely dispersed individuals do, on average, contribute to gene flow. Extensive dispersal of P . rex suggests that darters and other small benthic stream fishes may be unexpectedly mobile. Monitoring and management activities for such populations should encompass entire watersheds to fully capture population dynamics." @default.
• W2044176073 created "2016-06-24" @default.
• W2044176073 creator A5023524298 @default.
• W2044176073 creator A5049225958 @default.
• W2044176073 creator A5088496729 @default.
• W2044176073 date "2014-08-25" @default.
• W2044176073 modified "2023-10-10" @default.
• W2044176073 title "Extensive dispersal of <scp>R</scp> oanoke logperch ( <i> <scp>P</scp> ercina rex </i> ) inferred from genetic marker data" @default.
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• W2044176073 doi "https://doi.org/10.1111/eff.12177" @default.
• W2044176073 hasPublicationYear "2014" @default.
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