Mountains as Islands: Species Delimitation and Evolutionary History of the Ant-Loving Beetle Genus <i>Panabachia</i> (Coleoptera, Staphylinidae) from the Northern Andes
The ant-loving beetle genus <i>Panabachia</i> Park 1942 is a poorly studied beetle lineage from the new world tropics. We recently collected <i>Panabachia</i> from several previously unrecorded locations in the páramo biome of the high Ecuadorian Andes, with males ex...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-01-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/11/1/64 |
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| author | Sofía I. Muñoz-Tobar Michael S. Caterino |
| author_facet | Sofía I. Muñoz-Tobar Michael S. Caterino |
| author_sort | Sofía I. Muñoz-Tobar |
| collection | DOAJ |
| description | The ant-loving beetle genus <i>Panabachia</i> Park 1942 is a poorly studied beetle lineage from the new world tropics. We recently collected <i>Panabachia</i> from several previously unrecorded locations in the páramo biome of the high Ecuadorian Andes, with males exhibiting great morphological variation in the distribution of the foveae and depressions in the pronotum, as well as aspects of the male genitalia. Here, we employ phylogenetic and species delimitation methods with mitochondrial (<i>COI</i>) and nuclear protein-coding (wingless) gene sequences to examine the concordance of morphological characters and geography with hypothesized species boundaries. Three methods of species delimitation (bPTP, GMYC and Stacey) were used to estimate the number of species, and divergence times between putative species using molecular clock calibration. Phylogenetic analysis revealed two parallel radiations, and species delimitation analyses suggest there are between 17 and 22 putative species. Based on clade support and concordance across species delimitation methods we hypothesize 17 distinct clusters, with allopatric speciation consistent with most geographic patterns. Additionally, a widespread species appears to be present in northern páramo sites, and some sister species sympatry may indicate other diversification processes have operated on certain lineages of <i>Panabachia</i>. Divergence time estimates suggest that <i>Panabachia</i> originated in the Miocene, but most species analyzed diverged during the Pliocene and Pleistocene (5.3−0.11 Mya), contemporaneous with the evolution of páramo plant species. |
| first_indexed | 2024-12-11T08:50:22Z |
| format | Article |
| id | doaj.art-864763f70d8c458e9a92924b604ce1ab |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-12-11T08:50:22Z |
| publishDate | 2020-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-864763f70d8c458e9a92924b604ce1ab2022-12-22T01:14:02ZengMDPI AGInsects2075-44502020-01-011116410.3390/insects11010064insects11010064Mountains as Islands: Species Delimitation and Evolutionary History of the Ant-Loving Beetle Genus <i>Panabachia</i> (Coleoptera, Staphylinidae) from the Northern AndesSofía I. Muñoz-Tobar0Michael S. Caterino1Department of Plant and Environmental Sciences, Clemson University, Clemson, SC 29634, USADepartment of Plant and Environmental Sciences, Clemson University, Clemson, SC 29634, USAThe ant-loving beetle genus <i>Panabachia</i> Park 1942 is a poorly studied beetle lineage from the new world tropics. We recently collected <i>Panabachia</i> from several previously unrecorded locations in the páramo biome of the high Ecuadorian Andes, with males exhibiting great morphological variation in the distribution of the foveae and depressions in the pronotum, as well as aspects of the male genitalia. Here, we employ phylogenetic and species delimitation methods with mitochondrial (<i>COI</i>) and nuclear protein-coding (wingless) gene sequences to examine the concordance of morphological characters and geography with hypothesized species boundaries. Three methods of species delimitation (bPTP, GMYC and Stacey) were used to estimate the number of species, and divergence times between putative species using molecular clock calibration. Phylogenetic analysis revealed two parallel radiations, and species delimitation analyses suggest there are between 17 and 22 putative species. Based on clade support and concordance across species delimitation methods we hypothesize 17 distinct clusters, with allopatric speciation consistent with most geographic patterns. Additionally, a widespread species appears to be present in northern páramo sites, and some sister species sympatry may indicate other diversification processes have operated on certain lineages of <i>Panabachia</i>. Divergence time estimates suggest that <i>Panabachia</i> originated in the Miocene, but most species analyzed diverged during the Pliocene and Pleistocene (5.3−0.11 Mya), contemporaneous with the evolution of páramo plant species.https://www.mdpi.com/2075-4450/11/1/64rove beetlescoleopteraspeciationandespáramoecuador |
| spellingShingle | Sofía I. Muñoz-Tobar Michael S. Caterino Mountains as Islands: Species Delimitation and Evolutionary History of the Ant-Loving Beetle Genus <i>Panabachia</i> (Coleoptera, Staphylinidae) from the Northern Andes Insects rove beetles coleoptera speciation andes páramo ecuador |
| title | Mountains as Islands: Species Delimitation and Evolutionary History of the Ant-Loving Beetle Genus <i>Panabachia</i> (Coleoptera, Staphylinidae) from the Northern Andes |
| title_full | Mountains as Islands: Species Delimitation and Evolutionary History of the Ant-Loving Beetle Genus <i>Panabachia</i> (Coleoptera, Staphylinidae) from the Northern Andes |
| title_fullStr | Mountains as Islands: Species Delimitation and Evolutionary History of the Ant-Loving Beetle Genus <i>Panabachia</i> (Coleoptera, Staphylinidae) from the Northern Andes |
| title_full_unstemmed | Mountains as Islands: Species Delimitation and Evolutionary History of the Ant-Loving Beetle Genus <i>Panabachia</i> (Coleoptera, Staphylinidae) from the Northern Andes |
| title_short | Mountains as Islands: Species Delimitation and Evolutionary History of the Ant-Loving Beetle Genus <i>Panabachia</i> (Coleoptera, Staphylinidae) from the Northern Andes |
| title_sort | mountains as islands species delimitation and evolutionary history of the ant loving beetle genus i panabachia i coleoptera staphylinidae from the northern andes |
| topic | rove beetles coleoptera speciation andes páramo ecuador |
| url | https://www.mdpi.com/2075-4450/11/1/64 |
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