Founding population size of an aquatic invasive species

Kalinowski, Steven T.; Muhlfeld, Clint C.; Guy, Christopher S.; Cox, Benjamin S.

doi:10.1007/s10592-009-0041-8

Cited by 28 publications

(17 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Instead, we added STRUCTURE (Pritchard et al. 2000), one of the most commonly used aspatial Bayesian clustering methods (Kalinowski et al. 2010), and one often employed as a benchmark for method comparison (e.g., Jombart et al.…”

Section: Methodsmentioning

confidence: 99%

A simulation‐based evaluation of methods for inferring linear barriers to gene flow

Blair

Weigel

Balazik

et al. 2012

Molecular Ecology Resources

131

149

View full text Add to dashboard Cite

Different analytical techniques used on the same data set may lead to different conclusions about the existence and strength of genetic structure. Therefore, reliable interpretation of the results from different methods depends on the efficacy and reliability of different statistical methods. In this paper, we evaluated the performance of multiple analytical methods to detect the presence of a linear barrier dividing populations. We were specifically interested in determining if simulation conditions, such as dispersal ability and genetic equilibrium, affect the power of different analytical methods for detecting barriers. We evaluated two boundary detection methods (Monmonier's algorithm and WOMBLING), two spatial Bayesian clustering methods (TESS and GENELAND), an aspatial clustering approach (STRUCTURE), and two recently developed, non-Bayesian clustering methods [PSMIX and discriminant analysis of principal components (DAPC)]. We found that clustering methods had higher success rates than boundary detection methods and also detected the barrier more quickly. All methods detected the barrier more quickly when dispersal was long distance in comparison to short-distance dispersal scenarios. Bayesian clustering methods performed best overall, both in terms of highest success rates and lowest time to barrier detection, with GENELAND showing the highest power. None of the methods suggested a continuous linear barrier when the data were generated under an isolation-by-distance (IBD) model. However, the clustering methods had higher potential for leading to incorrect barrier inferences under IBD unless strict criteria for successful barrier detection were implemented. Based on our findings and those of previous simulation studies, we discuss the utility of different methods for detecting linear barriers to gene flow.

show abstract

Section: Methodsmentioning

confidence: 99%

A simulation‐based evaluation of methods for inferring linear barriers to gene flow

Blair

Weigel

Balazik

et al. 2012

Molecular Ecology Resources

131

149

View full text Add to dashboard Cite

show abstract

“…The application of molecular approaches to introduced populations can reveal hybridization and introgression (Holsbeek et al 2008, Parham et al 2013, Gering et al 2015, elucidate geographic origin (Jousson et al 2000, Johnson et al 2011, Siler et al 2014), infer population demography (Thibault et al 2009, Kalinowski et al 2010Purcell et al 2012), and elucidate the presence of cryptic species (May and Marsden 1992, Holland et al 2004, Stepien and Tumeo 2006. Genetic approaches are particularly helpful when unraveling introduction events that involve taxonomically problematic, sympatric and morphologically indistinguishable species, a situation particularly common to aquatic introductions (see Booth et al 2007 andGeller et al 2010 for recent reviews).…”

Section: Introductionmentioning

confidence: 99%

Origins of softshell turtles in Hawaii with implications for conservation

2015

View full text Add to dashboard Cite

“…In some species, inbreeding depression has been shown to lower the potential to deal with stressful conditions (e.g., Armbruster et al, 2000;Larson et al, 2009) and to lead to an increased liability of population extinction (Saccheri et al, 1998;Bijlsma et al, 2000;Wright et al, 2008). In a number of studies, however, no negative effects of inbreeding were reported after recovery from severe population bottlenecks (e.g., Ellegren et al, 1993;Hoelzel et al, 1993Hoelzel et al, , 2002Groombridge et al, 2009), and in some cases invasive species have been shown to thrive despite going through strong bottlenecks (e.g., Hawley et al, 2008;Kalinowski et al, 2010;SchmidHempel et al, 2007). This suggests that there are mechanisms that decrease the fitness costs of inbreeding.…”

Section: Introductionmentioning

confidence: 99%

Evolution of carbaryl resistance in the water flea Daphnia: complex interactions between inbreeding, stress, and selection

Swillen¹,

Vanoverbeke²,

Meester³

2014

Hydrobiologia

View full text Add to dashboard Cite

Human impact often leads to reduced population sizes, and populations exposed to anthropogenic stress may suffer reduced evolutionary potential because of loss of adaptive genetic variation and higher risk of inbreeding depression (ID). Here, we exposed naive and carbaryl-selected inbred and outbred subpopulations of Daphnia magna to the pesticide carbaryl shortly after birth, and monitored acute (day 1-4) and post-exposure mortality (day 5-second clutch). Overall, acute mortality was lower than post-exposure mortality, indicating predominantly long-term costs of carbaryl exposure. Surprisingly, we found no indication for ID with respect to mortality upon carbaryl exposure. This may be due to more effective purging of deleterious alleles under standard conditions in the more homozygous inbreds as compared to the more heterozygous outbreds. Alternatively, homozygous pesticide resistance alleles in inbreds may render the inbreds an advantage compared to outbreds, where such resistance alleles would more likely occur heterozygotically. Additionally, we found that the capacity to further reduce mortality in response to carbaryl selection tended to be reduced in inbreds compared to outbreds. Our results thus suggest that inbred lineages may cope equally well as outbreds with pesticide stress.

show abstract

Founding population size of an aquatic invasive species

Cited by 28 publications

References 19 publications

A simulation‐based evaluation of methods for inferring linear barriers to gene flow

A simulation‐based evaluation of methods for inferring linear barriers to gene flow

Origins of softshell turtles in Hawaii with implications for conservation

Evolution of carbaryl resistance in the water flea Daphnia: complex interactions between inbreeding, stress, and selection

Contact Info

Product

Resources

About