Southern expansion of the invasive ant Wasmannia auropunctata within its native range and its relation with clonality and human activity
The little fire ant Wasmannia auropunctata, native to the Neotropics, has become a serious pest worldwide over the past 100 years. It was originally distributed from Mexico to northern Argentina and new evidence suggests a recent southern range expansion during the last 60 years reaching central Arg...
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2018
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v13_n11_p_Chifflet http://hdl.handle.net/20.500.12110/paper_19326203_v13_n11_p_Chifflet |
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paper:paper_19326203_v13_n11_p_Chifflet2023-06-08T16:30:43Z Southern expansion of the invasive ant Wasmannia auropunctata within its native range and its relation with clonality and human activity adult Argentina article clonal variation diploidy genital system genotype habitat human human experiment major clinical study male microsatellite marker nonhuman Wasmannia auropunctata worker The little fire ant Wasmannia auropunctata, native to the Neotropics, has become a serious pest worldwide over the past 100 years. It was originally distributed from Mexico to northern Argentina and new evidence suggests a recent southern range expansion during the last 60 years reaching central Argentina. This supercolonial ant species has a polymorphic reproductive system. Some populations, mostly found in undisturbed natural environments, are characterised by a classical sexual haplodiploid reproductive system. In other populations, which mainly occur in human-modified habitats, diploid queens and haploid males are produced clonally while workers are produced sexually. Here we studied the association between the recent southern range expansion of W. auropunctata in relation to human activity and clonality. We carried out an extensive survey within the southern limit of the species’ native distribution and characterised the type of habitat where populations were found. Moreover, we genetically determined the type of reproductive system in 35 populations by genotyping at 12 microsatellite loci a total of 191 reproductive individuals (i.e. queens and/or males). Clonality was the most common reproductive system, occurring in 31 out of 35 populations analysed. All the populations found in the recently colonised area in central Argentina were clonal and established in human-modified habitats, suggesting that clonality together with human activity might have facilitated the southwards expansion of W. auropunctata. © 2018 Chifflet et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v13_n11_p_Chifflet http://hdl.handle.net/20.500.12110/paper_19326203_v13_n11_p_Chifflet |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
adult Argentina article clonal variation diploidy genital system genotype habitat human human experiment major clinical study male microsatellite marker nonhuman Wasmannia auropunctata worker |
| spellingShingle |
adult Argentina article clonal variation diploidy genital system genotype habitat human human experiment major clinical study male microsatellite marker nonhuman Wasmannia auropunctata worker Southern expansion of the invasive ant Wasmannia auropunctata within its native range and its relation with clonality and human activity |
| topic_facet |
adult Argentina article clonal variation diploidy genital system genotype habitat human human experiment major clinical study male microsatellite marker nonhuman Wasmannia auropunctata worker |
| description |
The little fire ant Wasmannia auropunctata, native to the Neotropics, has become a serious pest worldwide over the past 100 years. It was originally distributed from Mexico to northern Argentina and new evidence suggests a recent southern range expansion during the last 60 years reaching central Argentina. This supercolonial ant species has a polymorphic reproductive system. Some populations, mostly found in undisturbed natural environments, are characterised by a classical sexual haplodiploid reproductive system. In other populations, which mainly occur in human-modified habitats, diploid queens and haploid males are produced clonally while workers are produced sexually. Here we studied the association between the recent southern range expansion of W. auropunctata in relation to human activity and clonality. We carried out an extensive survey within the southern limit of the species’ native distribution and characterised the type of habitat where populations were found. Moreover, we genetically determined the type of reproductive system in 35 populations by genotyping at 12 microsatellite loci a total of 191 reproductive individuals (i.e. queens and/or males). Clonality was the most common reproductive system, occurring in 31 out of 35 populations analysed. All the populations found in the recently colonised area in central Argentina were clonal and established in human-modified habitats, suggesting that clonality together with human activity might have facilitated the southwards expansion of W. auropunctata. © 2018 Chifflet et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| title |
Southern expansion of the invasive ant Wasmannia auropunctata within its native range and its relation with clonality and human activity |
| title_short |
Southern expansion of the invasive ant Wasmannia auropunctata within its native range and its relation with clonality and human activity |
| title_full |
Southern expansion of the invasive ant Wasmannia auropunctata within its native range and its relation with clonality and human activity |
| title_fullStr |
Southern expansion of the invasive ant Wasmannia auropunctata within its native range and its relation with clonality and human activity |
| title_full_unstemmed |
Southern expansion of the invasive ant Wasmannia auropunctata within its native range and its relation with clonality and human activity |
| title_sort |
southern expansion of the invasive ant wasmannia auropunctata within its native range and its relation with clonality and human activity |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v13_n11_p_Chifflet http://hdl.handle.net/20.500.12110/paper_19326203_v13_n11_p_Chifflet |
| _version_ |
1768543057799544832 |