10.5061/DRYAD.80KG5
Lombaert, Eric
French National Centre for Scientific Research
Guillemaud, Thomas
French National Centre for Scientific Research
Lundgren, Jonathan
United States Department of Agriculture
Koch, Robert
University of Minnesota
Facon, Benoît
Montpellier SupAgro
Grez, Audrey
University of Chile
Loomans, Antoon
Montpellier SupAgro
Malausa, Thibaut
French National Centre for Scientific Research
Nedved, Oldrich
University of South Bohemia in České Budějovice
Rhule, Emma
University of Cambridge
Staverlokk, Arnstein
Norwegian Institute for Nature Research
Steenberg, Tove
Aarhus University
Estoup, Arnaud
Montpellier SupAgro
Data from: Complementarity of statistical treatments to reconstruct
worldwide routes of invasion: the case of the Asian ladybird Harmonia
axyridis
Dryad
dataset
2014
Harmonia axyridis
Harlequin ladybird
Invasion routes
2014-11-07T21:49:26Z
2014-11-07T21:49:26Z
en
https://doi.org/10.1111/mec.12989
209315 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Inferences about introduction histories of invasive species remain
challenging because of the stochastic demographic processes involved.
Approximate Bayesian computation (ABC) can help to overcome these
problems, but such method requires a prior understanding of population
structure over the study area, necessitating the use of alternative
methods and an intense sampling design. In this study, we made inferences
about the worldwide invasion history of the ladybird Harmonia axyridis by
various population genetics statistical methods, using a large set of
sampling sites distributed over most of the species’ native and invaded
areas. We evaluated the complementarity of the statistical methods and the
consequences of using different sets of site samples for ABC inferences.
We found that the H. axyridis invasion has involved two bridgehead
invasive populations in North America, which have served as the source
populations for at least six independent introductions into other
continents. We also identified several situations of genetic admixture
between differentiated sources. Our results highlight the importance of
coupling ABC methods with more traditional statistical approaches. We
found that the choice of site samples could affect the conclusions of ABC
analyses comparing possible scenarios. Approaches involving independent
ABC analyses on several sample sets constitute a sensible solution,
complementary to standard quality controls based on the analysis of
pseudo-observed datasets, to minimize erroneous conclusions. This study
provides biologists without expertise in this area with detailed
methodological and conceptual guidelines for making inferences about
invasion routes when dealing with a large number of sampling sites and
complex population genetic structures.
GENOTYPES_H_axyridis_Lombaert_et_al_MOLECULAR_ECOLOGY_MEC-14-0576The file
"GENOTYPES_H_axyridis_Lombaert_et_al_MOLECULAR_ECOLOGY_MEC-14-0576.txt" contains the genotypes of 1442 individuals from 47 site samples of the Asian Ladybird Harmonia axyridis. These genotypes were used in the paper "Complementarity of statistical treatments to reconstruct worldwide routes of invasion: the case of the Asian ladybird Harmonia axyridis" in Molecular Ecology - MEC-14-0576. This is a GENEPOP format file. Here are the information associated with each of the 47 site samples (see also table S1. The names are as in Lombaert et al. MEC-14-0576):
USA
Argentina
Hungary
Japan
Kazakhstan
Russia
Canada
Czech Republic
South Korea
Belgium
Norway
China
Brazil
Denmark
Poland
Italy
South Africa
Chile
France
Germany
Holland