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10 results for “Myrmecia”
Biogeography and evolution of social parasitism in Australian Myrmecia bulldog ants revealed by phylogenomics
<p>Studying the historical biogeography and life history transitions from eusocial colony life to social parasitism contributes to our understanding of the evolutionary mechanisms generating biodiversity in eusocial insects. The bulldog ants in the genus <em>Myrmecia</em> are a well-suited system for testing competing evolutionary hypotheses about how their species diversity was assembled through time because the genus is endemic to Australia with the single exception of the species <em>Myrmecia apicalis </em>inhabiting the Pacific Island of New Caledonia and because at least one social parasite species exists in the genus. However, the evolutionary mechanisms underlying the disjunct biogeographic distribution of <em>M. apicalis</em> and the life history transition(s) to social parasitism remain unexplored. To study the biogeographic origin of the isolated, oceanic species <em>M. apicalis</em> and to reveal the origin and evolutionary history of social parasitism in the genus, we reconstructed a comprehensive phylogeny of the ant subfamily Myrmeciinae. We utilized Ultra Conserved Elements (UCEs) as molecular markers to generate a comprehensive molecular genetic dataset consisting of 2,287 loci per taxon on average for 66 out of the 93 known <em>Myrmecia </em>species as well as for the sister lineage <em>Nothomyrmecia macrops</em> and selected outgroup taxa. Our time-calibrated phylogeny inferred that: (i) stem myrmeciine ants originated during the Paleocene ~58 Ma ago; (ii) the current disjunct biogeographic distribution of <em>M. apicalis </em>was driven by long-distance dispersal from Australia to New Caledonia during the Miocene ~14 Ma ago; (iii) the single social parasite species, <em>M. inquilina</em>, exploits three host species and evolved directly from one of the known host species, <em>M. nigriceps</em>, most likely via the intraspecific route of social parasite evolution in sympatry; and (iv) 5 of the 9 previously established taxonomic species groups are non-monophyletic. We suggest minor changes to reconcile the molecular phylogenetic results with the taxonomic classification. Our study enhances our understanding of the evolution and biogeography of Australian bulldog ants in the genus <em>Myrmecia</em>, contributes to our knowledge about the evolution of social parasitism in ants, and provides a solid phylogenetic foundation for future inquiries </p>
Biogeography and evolution of social parasitism in Australian Myrmecia bulldog ants revealed by phylogenomics
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FIGURES 16–18 in Ants with Attitude: Australian Jack-jumpers of the Myrmecia pilosula species complex, with descriptions of four new species (Hymenoptera: Formicidae: Myrmeciinae)
FIGURES 16–18. Myrmecia impaternata, National Botanic Gardens, Canberra, ACT. Standard views. HW 2.29 mm, WL 3.35 mm, PW 1.42 mm.
FIGURES 19–21 in Ants with Attitude: Australian Jack-jumpers of the Myrmecia pilosula species complex, with descriptions of four new species (Hymenoptera: Formicidae: Myrmeciinae)
FIGURES 19–21. Myrmecia imaii, Holotype, N of Denmark, WA. Standard views. HW 2.68 mm, WL 3.90 mm, PW 1.63 mm.
FIGURES 13–15 in Ants with Attitude: Australian Jack-jumpers of the Myrmecia pilosula species complex, with descriptions of four new species (Hymenoptera: Formicidae: Myrmeciinae)
FIGURES 13–15. Myrmecia pilosula, Western Race, Mt Wellington, Tasmania. Standard views. HW 2.45 mm, WL 3.63 mm, PW 1.49 mm.
FIGURES 10–12 in Ants with Attitude: Australian Jack-jumpers of the Myrmecia pilosula species complex, with descriptions of four new species (Hymenoptera: Formicidae: Myrmeciinae)
FIGURES 10–12. Myrmecia pilosula, Eastern Race, Mongarlowe, NSW. Standard views. HW 2.12 mm, WL 3.11 mm, PW 1.26 mm.
FIGURES 4–6 in Ants with Attitude: Australian Jack-jumpers of the Myrmecia pilosula species complex, with descriptions of four new species (Hymenoptera: Formicidae: Myrmeciinae)
FIGURES 4–6. Myrmecia banksi, Holotype, South Nowra, NSW. Standard views. HW 2.66 mm, WL 3.86 mm, PW 1.72 mm.
FIGURES 1–3 in Ants with Attitude: Australian Jack-jumpers of the Myrmecia pilosula species complex, with descriptions of four new species (Hymenoptera: Formicidae: Myrmeciinae)
FIGURES 1–3. Myrmecia haskinsorum, Jamberoo, NSW. Standard views. HW 2.46 mm, WL 3.64 mm, PW 1.57 mm.
Data from: Intraspecific support for the polygyny-vs.-polyandry hypothesis in the bulldog ant Myrmecia brevinoda
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FIGURES 7–9 in Ants with Attitude: Australian Jack-jumpers of the Myrmecia pilosula species complex, with descriptions of four new species (Hymenoptera: Formicidae: Myrmeciinae)
FIGURES 7–9. Myrmecia croslandi, Canberra, ACT. Standard views. HW 2.50 mm, WL 3.74 mm, PW 1.60 mm.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.