Formica sentschuensis Ruzsky 1915 and F. tibetana n. sp. – two unique and little known Formica species from Tibet (Hymenoptera: Formicidae)
This study presents the taxonomic description and ecological data of two unique ant species, Formica sentschuensis Ruzsky 1915 and Formica tibetana n.sp., found in the high-altitude grasslands of the Tibetan Plateau. Based on expeditions conducted in 2011 and 2012, F. tibetana n.sp. was identified...
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Senckenberg Gesellschaft für Naturforschung
2025-04-01
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| Series: | Soil Organisms |
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| Online Access: | https://soil-organisms.org/index.php/SO/article/view/452 |
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| author | Roland Schultz Bernhard Seifert |
| author_facet | Roland Schultz Bernhard Seifert |
| author_sort | Roland Schultz |
| collection | DOAJ |
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This study presents the taxonomic description and ecological data of two unique ant species, Formica sentschuensis Ruzsky 1915 and Formica tibetana n.sp., found in the high-altitude grasslands of the Tibetan Plateau. Based on expeditions conducted in 2011 and 2012, F. tibetana n.sp. was identified as a distinct species. It develops locally an unusual nest architecture showing a flat, hardened, south-facing upper surface that optimizes solar heat absorption for early brood development. Morphological analyses revealed that F. tibetana n.sp. and F. sentschuensis form a common clade that supposedly split off near to the root of the genus Formica. Both species are characterized by a rare anteromedian clypeal excavation, a feature otherwise known for the Palaearctic only in Formica sanguinea Latreille, 1798 and several Nearctic species of the Formica sanguinea group. Morphology does not indicate a close relatedness of F. tibetana n.sp. and F. sentschuensis with members of the Formica sanguinea group which is supported by full absence of dulosis and independent single-queen colony foundation confirmed for F. tibetana n.sp. A stereomicroscopic analysis of morphological traits, including shape characters, seta characters and absolute body size proved that both species are clearly separable on worker individual level. This study provides insights into the biology of F. tibetana n.sp. and shows that the species plays a significant role in the Tibetan grassland ecosystems.
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| format | Article |
| id | doaj-art-8a072baee4134d48b50c0b8b9300e8ef |
| institution | OA Journals |
| issn | 1864-6417 2509-9523 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Senckenberg Gesellschaft für Naturforschung |
| record_format | Article |
| series | Soil Organisms |
| spelling | doaj-art-8a072baee4134d48b50c0b8b9300e8ef2025-08-20T02:27:41ZengSenckenberg Gesellschaft für NaturforschungSoil Organisms1864-64172509-95232025-04-0197110.25674/452Formica sentschuensis Ruzsky 1915 and F. tibetana n. sp. – two unique and little known Formica species from Tibet (Hymenoptera: Formicidae)Roland Schultz0Bernhard Seifert1Senckenberg Museum of Natural History GörlitzSenckenberg Museum für Naturkunde Görlitz This study presents the taxonomic description and ecological data of two unique ant species, Formica sentschuensis Ruzsky 1915 and Formica tibetana n.sp., found in the high-altitude grasslands of the Tibetan Plateau. Based on expeditions conducted in 2011 and 2012, F. tibetana n.sp. was identified as a distinct species. It develops locally an unusual nest architecture showing a flat, hardened, south-facing upper surface that optimizes solar heat absorption for early brood development. Morphological analyses revealed that F. tibetana n.sp. and F. sentschuensis form a common clade that supposedly split off near to the root of the genus Formica. Both species are characterized by a rare anteromedian clypeal excavation, a feature otherwise known for the Palaearctic only in Formica sanguinea Latreille, 1798 and several Nearctic species of the Formica sanguinea group. Morphology does not indicate a close relatedness of F. tibetana n.sp. and F. sentschuensis with members of the Formica sanguinea group which is supported by full absence of dulosis and independent single-queen colony foundation confirmed for F. tibetana n.sp. A stereomicroscopic analysis of morphological traits, including shape characters, seta characters and absolute body size proved that both species are clearly separable on worker individual level. This study provides insights into the biology of F. tibetana n.sp. and shows that the species plays a significant role in the Tibetan grassland ecosystems. https://soil-organisms.org/index.php/SO/article/view/452Formica antsTibetan Plateaunumeric morphology-based alpha-taxonomynest architecture adaptation |
| spellingShingle | Roland Schultz Bernhard Seifert Formica sentschuensis Ruzsky 1915 and F. tibetana n. sp. – two unique and little known Formica species from Tibet (Hymenoptera: Formicidae) Soil Organisms Formica ants Tibetan Plateau numeric morphology-based alpha-taxonomy nest architecture adaptation |
| title | Formica sentschuensis Ruzsky 1915 and F. tibetana n. sp. – two unique and little known Formica species from Tibet (Hymenoptera: Formicidae) |
| title_full | Formica sentschuensis Ruzsky 1915 and F. tibetana n. sp. – two unique and little known Formica species from Tibet (Hymenoptera: Formicidae) |
| title_fullStr | Formica sentschuensis Ruzsky 1915 and F. tibetana n. sp. – two unique and little known Formica species from Tibet (Hymenoptera: Formicidae) |
| title_full_unstemmed | Formica sentschuensis Ruzsky 1915 and F. tibetana n. sp. – two unique and little known Formica species from Tibet (Hymenoptera: Formicidae) |
| title_short | Formica sentschuensis Ruzsky 1915 and F. tibetana n. sp. – two unique and little known Formica species from Tibet (Hymenoptera: Formicidae) |
| title_sort | formica sentschuensis ruzsky 1915 and f tibetana n sp two unique and little known formica species from tibet hymenoptera formicidae |
| topic | Formica ants Tibetan Plateau numeric morphology-based alpha-taxonomy nest architecture adaptation |
| url | https://soil-organisms.org/index.php/SO/article/view/452 |
| work_keys_str_mv | AT rolandschultz formicasentschuensisruzsky1915andftibetanansptwouniqueandlittleknownformicaspeciesfromtibethymenopteraformicidae AT bernhardseifert formicasentschuensisruzsky1915andftibetanansptwouniqueandlittleknownformicaspeciesfromtibethymenopteraformicidae |