Keyword search (3,448 papers available)


Evaluating the correlation between genome-wide diversity and the release of plastic phenotypic variation in experimental translocations to novel natural environments.

Author(s): Yates MC, Fraser DJ

Phenotypic reaction norms are often shaped and constrained by selection and are important for allowing organisms to respond to environmental change. However, selection cannot constrain reaction norms for environmental conditions that populations have not ex...

Article GUID: 33274531
Size reductions and genomic changes within two generations in wild walleye populations: associated with harvest?

Author(s): Bowles E, Marin K, Mogensen S, MacLeod P, Fraser DJ

Evol Appl. 2020 Jul;13(6):1128-1144 Authors: Bowles E, Marin K, Mogensen S, MacLeod P, Fraser DJ

Article GUID: 32684951
The relationship between eDNA particle concentration and organism abundance in nature is strengthened by allometric scaling.

Author(s): Yates MC, Glaser D, Post J, Cristescu ME, Fraser DJ, Derry AM

Mol Ecol. 2020 Jul 07;: Authors: Yates MC, Glaser D, Post J, Cristescu ME, Fraser DJ, Derry AM

Article GUID: 32638451
Small population size and low genomic diversity have no effect on fitness in experimental translocations of a wild fish.

Author(s): Yates MC, Bowles E, Fraser DJ

Proc Biol Sci. 2019 Dec 04;286(1916):20191989 Authors: Yates MC, Bowles E, Fraser DJ

Article GUID: 31771476
Population variation in density-dependent growth, mortality and their trade-off in a stream fish.

Author(s): Matte JM, Fraser DJ, Grant JWA

J Anim Ecol. 2019 Oct 23;: Authors: Matte JM, Fraser DJ, Grant JWA

Article GUID: 31642512
Causes of maladaptation.

Author(s): Brady SP, Bolnick DI, Angert AL, Gonzalez A, Barrett RDH, Crispo E, Derry AM, Eckert CG, Fraser DJ, Fussmann GF, Guichard F, Lamy T, McAdam ...

Evol Appl. 2019 Aug;12(7):1229-1242 Authors: Brady SP, Bolnick DI, Angert AL, Gonzalez A, Barrett RDH, Crispo E, Derry AM, Eckert CG, Fraser DJ, Fussmann GF, Guichard F, Lamy T, McAdam AG, Newman ...

Article GUID: 31417611
Conservation through the lens of (mal)adaptation: Concepts and meta-analysis.

Author(s): Derry AM, Fraser DJ, Brady SP, Astorg L, Lawrence ER, Martin GK, Matte JM, Negrín Dastis JO, Paccard A, Barrett RDH, Chapman LJ, Lane JE, Ba...

Evol Appl. 2019 Aug;12(7):1287-1304 Authors: Derry AM, Fraser DJ, Brady SP, Astorg L, Lawrence ER, Martin GK, Matte JM, Negrín Dastis JO, Paccard A, Barrett RDH, Chapman LJ, Lane JE, Ballas C...

Article GUID: 31417615
A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes.

Author(s): Yates MC, Bernos TA, Fraser DJ

Evol Appl. 2017 10;10(9):935-945 Authors: Yates MC, Bernos TA, Fraser DJ

Article GUID: 29151884
Genetic diversity of small populations: Not always "doom and gloom"?

Author(s): Fraser DJ

Mol Ecol. 2017 12;26(23):6499-6501 Authors: Fraser DJ

Article GUID: 29243868
Evaluating a 5-year metal contamination remediation and the biomonitoring potential of a freshwater gastropod along the Xiangjiang River, China.

Author(s): Li D, Pi J, Zhang T, Tan X, Fraser DJ

Environ Sci Pollut Res Int. 2018 Jul;25(21):21127-21137 Authors: Li D, Pi J, Zhang T, Tan X, Fraser DJ

Article GUID: 29770938
Geo-referenced population-specific microsatellite data across American continents, the MacroPopGen Database.

Author(s): Lawrence ER, Benavente JN, Matte JM, Marin K, Wells ZRR, Bernos TA, Krasteva N, Habrich A, Nessel GA, Koumrouyan RA, Fraser DJ

Sci Data. 2019 04 03;6(1):14 Authors: Lawrence ER, Benavente JN, Matte JM, Marin K, Wells ZRR, Bernos TA, Krasteva N, Habrich A, Nessel GA, Koumrouyan RA, Fraser DJ

Article GUID: 30944329
Title:A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes.
Authors:Yates MC,  Bernos TA,  Fraser DJ
Link:https://www.ncbi.nlm.nih.gov/pubmed/29151884?dopt=Abstract
DOI:10.1111/eva.12496
Category:Evol Appl
PMID:29151884
Dept Affiliation: BIOLOGY
1 Department of Biology Concordia University Montreal QC Canada.
2 Group for Interuniversity Research in Limnology and Aquatic Environments (GRIL) Universite du Quebec Trois-Rivieres QC Canada.

Description:

A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes.

Evol Appl. 2017 10;10(9):935-945

Authors: Yates MC, Bernos TA, Fraser DJ

Abstract

Technological and methodological advances have facilitated the use of genetic data to infer census population size (Nc) in natural populations, particularly where traditional mark-and-recapture is challenging. The effective number of breeders (Nb) describes how many adults effectively contribute to a cohort and is often correlated with Nc. Predicting Nc from Nb or vice versa in species with overlapping generations has important implications for conservation by permitting (i) estimation of the more difficult to quantify variable and (ii) inferences of Nb/Nc relationships in related species lacking data. We quantitatively synthesized Nb/Nc relationships in three salmonid fishes where sufficient data have recently accumulated. Mixed-effects models were analysed in which each variable was included as a dependent variable or predictor term (Nb from Nc and vice versa). Species-dependent Nb/Nc slope estimates were significantly positive in two of three species. Variation in species slopes was likely due to varying life histories and reinforce caution when inferring Nb/Nc from taxonomically related species. Models provided maximum probable estimates for Nb and Nc for two species. However, study, population and year effects explained substantial amounts of variation (39%-57%). Consequently, prediction intervals were wide and included or were close to zero for all population sizes and species; model predictive utility was limited. Cost-benefit trade-offs when estimating Nb and/or Nc were also discussed using a real-world system example. Our findings based on salmonids suggest that no short cuts currently exist when estimating population size and researchers should focus on quantifying the variable of interest or be aware of caveats when inferring the desired variable because of cost or logistics. We caution that the salmonid species examined share life-history traits that may obscure relationships between Nb and Nc. Sufficient data on other taxa were unavailable; additional research examining Nb/Nc relationships in species with potentially relevant life-history trait differences (e.g., differing survival curves) is needed.

PMID: 29151884 [PubMed]