ArticleEvolutionary applications2014
Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon.
Article in Evolutionary applications, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 34 citations in OpenAlex.
- Inbreeding reduces fitness in spatially structured populations of a threatened rattlesnake.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Alternative life-history strategy contributions to effective population size in a naturally spawning salmon population.Evolutionary applications · 2023Article
- Evaluating the evolutionary mechanisms maintaining alternative mating strategies in a simulated bull trout (Ecology and evolution · 2023Article
- Effects of stocking at the parr stage on the reproductive fitness and genetic diversity of a wild population of Atlantic salmon (Evolutionary applications · 2022Article
- An evaluation of the potential factors affecting lifetime reproductive success in salmonids.Evolutionary applications · 2021Review
- Considering sampling bias in close-kin mark-recapture abundance estimates of Atlantic salmon.Ecology and evolution · 2021Article
- Interbreeding between local and translocated populations of a cleaner fish in an experimental mesocosm predicts risk of disrupted local adaptation.Ecology and evolution · 2019Article
- A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes.Evolutionary applications · 2017Article
- Effective number of breeders from sibship reconstruction: empirical evaluations using hatchery steelhead.Evolutionary applications · 2017Article
- Making sense of the relationships between Ne, Nb and Nc towards defining conservation thresholds in Atlantic salmon (Salmo salar).Heredity · 2016Article
- Sexual selection leads to a tenfold difference in reproductive success of alternative reproductive tactics in male Atlantic salmon.Die Naturwissenschaften · 2016Article
- Venturing in coral larval chimerism: a compact functional domain with fostered genotypic diversity.Scientific reports · 2016Article
- Determinants of male floating behaviour and floater reproduction in a threatened population of the hihi (Notiomystis cincta).Evolutionary applications · 2015Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
While nonanadromous males (stream-resident and/or mature male parr) contribute to reproduction in anadromous salmonids, little is known about their impacts on key population genetic parameters. Here, we evaluated the contribution of Atlantic salmon mature male parr to the effective number of breeders (Nb) using both demographic (variance in reproductive success) and genetic (linkage disequilibrium) methods, the number of alleles, and the relatedness among breeders. We used a recently published pedigree reconstruction of a wild anadromous Atlantic salmon population in which 2548 fry born in 2010 were assigned parentage to 144 anadromous female and 101 anadromous females that returned to the river to spawn in 2009 and to 462 mature male parr. Demographic and genetic methods revealed that mature male parr increased population Nb by 1.79 and 1.85 times, respectively. Moreover, mature male parr boosted the number of alleles found among progenies. Finally, mature male parr were in average less related to anadromous females than were anadromous males, likely because of asynchronous sexual maturation between mature male parr and anadromous fish of a given cohort. By increasing Nb and allelic richness, and by decreasing inbreeding, the reproductive contribution of mature male parr has important evolutionary and conservation implications for declining Atlantic salmon populations.
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