The natural and human-mediated expansion of a human-commensal lizard into the fringes of Southeast Asia
Abstract Background Human-commensal species often display deep ancestral genetic structure within their native range and founder-effects and/or evidence of multiple introductions and admixture in newly established areas. We investigated the phylogeography of Eutropis multifasciata, an abundant human...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2024-02-01
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| Series: | BMC Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12862-024-02212-7 |
| _version_ | 1797276117790359552 |
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| author | Benjamin R. Karin Michael Lough-Stevens Te-En Lin Sean B. Reilly Anthony J. Barley Indraneil Das Djoko T. Iskandar Evy Arida Todd R. Jackman Jimmy A. McGuire Aaron M. Bauer |
| author_facet | Benjamin R. Karin Michael Lough-Stevens Te-En Lin Sean B. Reilly Anthony J. Barley Indraneil Das Djoko T. Iskandar Evy Arida Todd R. Jackman Jimmy A. McGuire Aaron M. Bauer |
| author_sort | Benjamin R. Karin |
| collection | DOAJ |
| description | Abstract Background Human-commensal species often display deep ancestral genetic structure within their native range and founder-effects and/or evidence of multiple introductions and admixture in newly established areas. We investigated the phylogeography of Eutropis multifasciata, an abundant human-commensal scincid lizard that occurs across Southeast Asia, to determine the extent of its native range and to assess the sources and signatures of human introduction outside of the native range. We sequenced over 350 samples of E. multifasciata for the mitochondrial ND2 gene and reanalyzed a previous RADseq population genetic dataset in a phylogenetic framework. Results Nuclear and mitochondrial trees are concordant and show that E. multifasciata has retained high levels of genetic structure across Southeast Asia despite being frequently moved by humans. Lineage boundaries in the native range roughly correspond to several major biogeographic barriers, including Wallace’s Line and the Isthmus of Kra. Islands at the outer fringe of the range show evidence of founder-effects and multiple introductions. Conclusions Most of enormous range of E. multifasciata across Southeast Asia is native and it only displays signs of human-introduction or recent expansion along the eastern and northern fringe of its range. There were at least three events of human-introductions to Taiwan and offshore islands, and several oceanic islands in eastern Indonesia show a similar pattern. In Myanmar and Hainan, there is a founder-effect consistent with post-warming expansion after the last glacial maxima or human introduction. |
| first_indexed | 2024-03-07T15:23:44Z |
| format | Article |
| id | doaj.art-49e8ea416bb94dac85187b27c4997ab5 |
| institution | Directory Open Access Journal |
| issn | 2730-7182 |
| language | English |
| last_indexed | 2024-03-07T15:23:44Z |
| publishDate | 2024-02-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Ecology and Evolution |
| spelling | doaj.art-49e8ea416bb94dac85187b27c4997ab52024-03-05T17:26:01ZengBMCBMC Ecology and Evolution2730-71822024-02-0124111510.1186/s12862-024-02212-7The natural and human-mediated expansion of a human-commensal lizard into the fringes of Southeast AsiaBenjamin R. Karin0Michael Lough-Stevens1Te-En Lin2Sean B. Reilly3Anthony J. Barley4Indraneil Das5Djoko T. Iskandar6Evy Arida7Todd R. Jackman8Jimmy A. McGuire9Aaron M. Bauer10Museum of Vertebrate Zoology and Department of Integrative Biology, University of CaliforniaDepartment of Biology, Villanova UniversityEndemic Species Research InstituteMuseum of Vertebrate Zoology and Department of Integrative Biology, University of CaliforniaDepartment of Evolution and Ecology, University of CaliforniaInstitute of Biodiversity and Environmental Conservation, Universiti Malaysia SarawakSchool of Life Sciences and Technology, Bandung Institute of TechnologyResearch Center for Ecology and Ethnobiology, Badan Riset dan Inovasi Nasional (BRIN), Cibinong Science CenterDepartment of Biology, Villanova UniversityMuseum of Vertebrate Zoology and Department of Integrative Biology, University of CaliforniaDepartment of Biology, Villanova UniversityAbstract Background Human-commensal species often display deep ancestral genetic structure within their native range and founder-effects and/or evidence of multiple introductions and admixture in newly established areas. We investigated the phylogeography of Eutropis multifasciata, an abundant human-commensal scincid lizard that occurs across Southeast Asia, to determine the extent of its native range and to assess the sources and signatures of human introduction outside of the native range. We sequenced over 350 samples of E. multifasciata for the mitochondrial ND2 gene and reanalyzed a previous RADseq population genetic dataset in a phylogenetic framework. Results Nuclear and mitochondrial trees are concordant and show that E. multifasciata has retained high levels of genetic structure across Southeast Asia despite being frequently moved by humans. Lineage boundaries in the native range roughly correspond to several major biogeographic barriers, including Wallace’s Line and the Isthmus of Kra. Islands at the outer fringe of the range show evidence of founder-effects and multiple introductions. Conclusions Most of enormous range of E. multifasciata across Southeast Asia is native and it only displays signs of human-introduction or recent expansion along the eastern and northern fringe of its range. There were at least three events of human-introductions to Taiwan and offshore islands, and several oceanic islands in eastern Indonesia show a similar pattern. In Myanmar and Hainan, there is a founder-effect consistent with post-warming expansion after the last glacial maxima or human introduction.https://doi.org/10.1186/s12862-024-02212-7PhylogeographyBiogeographyInvasive speciesScincidaeSoutheast AsiaEutropis multifasciata |
| spellingShingle | Benjamin R. Karin Michael Lough-Stevens Te-En Lin Sean B. Reilly Anthony J. Barley Indraneil Das Djoko T. Iskandar Evy Arida Todd R. Jackman Jimmy A. McGuire Aaron M. Bauer The natural and human-mediated expansion of a human-commensal lizard into the fringes of Southeast Asia BMC Ecology and Evolution Phylogeography Biogeography Invasive species Scincidae Southeast Asia Eutropis multifasciata |
| title | The natural and human-mediated expansion of a human-commensal lizard into the fringes of Southeast Asia |
| title_full | The natural and human-mediated expansion of a human-commensal lizard into the fringes of Southeast Asia |
| title_fullStr | The natural and human-mediated expansion of a human-commensal lizard into the fringes of Southeast Asia |
| title_full_unstemmed | The natural and human-mediated expansion of a human-commensal lizard into the fringes of Southeast Asia |
| title_short | The natural and human-mediated expansion of a human-commensal lizard into the fringes of Southeast Asia |
| title_sort | natural and human mediated expansion of a human commensal lizard into the fringes of southeast asia |
| topic | Phylogeography Biogeography Invasive species Scincidae Southeast Asia Eutropis multifasciata |
| url | https://doi.org/10.1186/s12862-024-02212-7 |
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