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Título: | Quantitative morphology and mtDNA reveal that Lasius maltaeus is not endemic to the Maltese Islands (Hymenoptera, Formicidae) |
Autor: | Menchetti, Mattia CSIC ORCID; Schifani, Enrico; Alicata, Antonio; Vila, Roger CSIC ORCID | Palabras clave: | Ants Biogeography Formicinae Mediterranean islands Sicily |
Fecha de publicación: | 17-feb-2023 | Editor: | Pensoft Publishers | Citación: | Journal of Hymenoptera Research 95: 129-142 (2023) | Resumen: | Lasius maltaeus Seifert, 2020 was recently described as a Maltese endemic ant based on quantitative morphology, after decades of uncertainties over the identity of the local population, which has a phenotype resembling L. emarginatus (Olivier, 1791). At the same time, Sicilian L. emarginatus populations were discovered to diverge in their mitochondrial DNA to a degree that suggested heterospecificity. Considering the biogeographic similarity of Malta and Sicily, with land bridges connecting them repeatedly until the last glacial maximum, we questioned the assumption that L. maltaeus was endemic to Malta. We integrated quantitative morphology and mtDNA in the study of the Maltese and southern Italian populations phenotypically close to L. emarginatus. We discovered that the range of L. maltaeus extends over most of Sicily, while the true L. emarginatus replace it in the north-eastern sector of the island, the nearby Aeolian Islands, and the Italian peninsula. The distributions of L. emarginatus and L. maltaeus in Sicily follow biogeographic patterns recalling the island’s complex paleogeographic history. Further investigations should verify the existence of truly Maltese endemic ants, since the status of other allegedly endemic species is not strongly supported. | Descripción: | © 2023 Mattia Menchetti, Enrico Schifani, Antonio Alicata, Roger Vila. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. | Versión del editor: | https://doi.org/10.3897/jhr.95.96365 | URI: | http://hdl.handle.net/10261/348620 | DOI: | 10.3897/jhr.95.96365 | ISSN: | 1070-9428 | E-ISSN: | 1314-2607 |
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