Neoisoptera repetitively colonised Madagascar after the Middle Miocene climatic optimum
Neoisoptera repetitively colonised Madagascar after the Middle Miocene climatic optimum
Abstract Madagascar is home to many endemic plant and animal species owing to its ancient isolation from other landmasses. This unique fauna includes several lineages of termites, a group of insects known for their key role in organic matter decomposition in many terrestrial ecosystems. How and when termites colonised Madagascar remains unknown. In this study, we used 601 mitochondrial genomes, 93 of which were generated from Madagascan samples, to infer the global historical biogeography of Neoisoptera, a lineage containing upwards of 80% of described termite species. Our results indicate that Neoisoptera colonised Madagascar between seven to ten times independently during the Miocene, between 8.4-16.6 Ma (95% HPD: 6.1-19.9 Ma). This timing matches that of the colonization of Australia by Neoisoptera. Furthermore, the taxonomic composition of the Neoisopteran fauna of Madagascar and Australia are strikingly similar, with Madagascar harbouring an additional two lineages absent from Australia. Therefore, akin to Australia, Neoisoptera colonised Madagascar during the global expansion of grasslands, possibly helped by the ecological opportunities arising from the spread of this new biome.
Hellemans Simon、Roisin Yves、?obotn¨ak Jan、Bourguignon Thomas、Kanao Taisuke、Clitheroe Crystal、Scheffrahn Rudolf、Bu?ek Ale?、Wang Menglin、Arora Jigyasa、Sillam-Duss¨¨s David、Fisher Brian L.、Rafanomezantsoa Jean-Jacques
Okinawa Institute of Science & Technology Graduate UniversityEvolutionary Biology and Ecology, Universit¨| Libre de BruxellesFaculty of Tropical AgriSciences, Czech University of Life SciencesOkinawa Institute of Science & Technology Graduate University||Faculty of Tropical AgriSciences, Czech University of Life SciencesOkinawa Institute of Science & Technology Graduate University||Faculty of Science, Yamagata UniversityOkinawa Institute of Science & Technology Graduate UniversityFort Lauderdale Research and Education Center, Institute for Food and Agricultural SciencesOkinawa Institute of Science & Technology Graduate UniversityOkinawa Institute of Science & Technology Graduate UniversityOkinawa Institute of Science & Technology Graduate UniversityLaboratory of Experimental and Comparative Ethology||Faculty of Tropical AgriSciences, Czech University of Life SciencesMadagascar Biodiversity Center, Parc Botanique et Zoologique de Tsimbazaza||California Academy of SciencesMadagascar Biodiversity Center, Parc Botanique et Zoologique de Tsimbazaza
昆虫学古生物学环境科学理论
Australiaendemismhistorical biogeographyover-water dispersalvicariance
Hellemans Simon,Roisin Yves,?obotn¨ak Jan,Bourguignon Thomas,Kanao Taisuke,Clitheroe Crystal,Scheffrahn Rudolf,Bu?ek Ale?,Wang Menglin,Arora Jigyasa,Sillam-Duss¨¨s David,Fisher Brian L.,Rafanomezantsoa Jean-Jacques.Neoisoptera repetitively colonised Madagascar after the Middle Miocene climatic optimum[EB/OL].(2025-03-28)[2025-06-30].https://www.biorxiv.org/content/10.1101/2021.12.01.470872.点此复制
评论