A New Species of the Genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean Peninsula
A new species of the genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda), co-occurring with water louse <i>Asellus</i> cf. <i>aquaticus</i> (Linnaeus, 1758) (Crustacea: Isopoda) in deep wells, is described from the Tarkhankut Upland, located in the northw...
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MDPI AG
2022-11-01
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| author | Ivan N. Marin Ilya S. Turbanov Gregoryi A. Prokopov Dmitry M. Palatov |
| author_facet | Ivan N. Marin Ilya S. Turbanov Gregoryi A. Prokopov Dmitry M. Palatov |
| author_sort | Ivan N. Marin |
| collection | DOAJ |
| description | A new species of the genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda), co-occurring with water louse <i>Asellus</i> cf. <i>aquaticus</i> (Linnaeus, 1758) (Crustacea: Isopoda) in deep wells, is described from the Tarkhankut Upland, located in the northwestern part of the Crimean Peninsula. <i>Niphargus tarkhankuticus</i> sp. nov. corresponds to a separate phylogenetic lineage (the “<i>tarkhankuticus</i>” ingroup), also including several undescribed species from the coastal habitats of the Black Sea (the Crimean Peninsula, the southern Caucasus and the northern coast of Turkey), which is related to the paraphyletic European “<i>stygius-longicaudatus</i>” group. The divergence of the “<i>tarkhankuticus</i>” ingroup from the related European species probably appeared in the Late Miocene age, about 11–10 Mya, related to the separation of the Eastern Paratethys for different basins (Euxinian, Alpine and Pannopian). At the same time, the speciation within the ingroup started in Pliocene, about 5.76–3.6 Mya, and correlated with the Black Sea leveling and the drainage of coastal marine carbonate accumulations, including the Tarkhankut Upland. Intraspecific values of COI mtDNA gene markers (<i>p</i>-distances) for <i>N. tarkhankuticus</i> sp. nov. are about 2%, showing that the division into a number of isolated subpopulations, probably associated with local tectonic movements, the active formation of the river network, and further karst processes in the Tarkhankut Upland occurred during the Pleistocene (since 2.58 Mya). Analysis of stable isotopes (δ<sup>13</sup>C/δ<sup>15</sup>N) revealed that only discovered macrocrustaceans in the studied wells of the Tarkhankut Upland have non-overlapping trophic niches, with <i>A.</i> cf. <i>aquaticus</i> possibly feeding on algae/periphyton, while the trophic position of <i>N. tarkhankuticus</i> sp. nov. is close to predators. |
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| spelling | doaj.art-77ce99b7c53f49b3a5637160daf513a52023-11-24T14:22:00ZengMDPI AGDiversity1424-28182022-11-011412101010.3390/d14121010A New Species of the Genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean PeninsulaIvan N. Marin0Ilya S. Turbanov1Gregoryi A. Prokopov2Dmitry M. Palatov3A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071 Moscow, RussiaI.D. Papanin Institute of the Biology of Inland Waters, Russian Academy of Sciences, 152742 Borok, RussiaDepartment of Geoecology, V.I. Vernadsky Crimean Federal University, 295007 Simferopol, RussiaA.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071 Moscow, RussiaA new species of the genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda), co-occurring with water louse <i>Asellus</i> cf. <i>aquaticus</i> (Linnaeus, 1758) (Crustacea: Isopoda) in deep wells, is described from the Tarkhankut Upland, located in the northwestern part of the Crimean Peninsula. <i>Niphargus tarkhankuticus</i> sp. nov. corresponds to a separate phylogenetic lineage (the “<i>tarkhankuticus</i>” ingroup), also including several undescribed species from the coastal habitats of the Black Sea (the Crimean Peninsula, the southern Caucasus and the northern coast of Turkey), which is related to the paraphyletic European “<i>stygius-longicaudatus</i>” group. The divergence of the “<i>tarkhankuticus</i>” ingroup from the related European species probably appeared in the Late Miocene age, about 11–10 Mya, related to the separation of the Eastern Paratethys for different basins (Euxinian, Alpine and Pannopian). At the same time, the speciation within the ingroup started in Pliocene, about 5.76–3.6 Mya, and correlated with the Black Sea leveling and the drainage of coastal marine carbonate accumulations, including the Tarkhankut Upland. Intraspecific values of COI mtDNA gene markers (<i>p</i>-distances) for <i>N. tarkhankuticus</i> sp. nov. are about 2%, showing that the division into a number of isolated subpopulations, probably associated with local tectonic movements, the active formation of the river network, and further karst processes in the Tarkhankut Upland occurred during the Pleistocene (since 2.58 Mya). Analysis of stable isotopes (δ<sup>13</sup>C/δ<sup>15</sup>N) revealed that only discovered macrocrustaceans in the studied wells of the Tarkhankut Upland have non-overlapping trophic niches, with <i>A.</i> cf. <i>aquaticus</i> possibly feeding on algae/periphyton, while the trophic position of <i>N. tarkhankuticus</i> sp. nov. is close to predators.https://www.mdpi.com/1424-2818/14/12/1010Amphipoda<i>Niphargus</i>barcodingCOI mtDNAdiversityphylogeography |
| spellingShingle | Ivan N. Marin Ilya S. Turbanov Gregoryi A. Prokopov Dmitry M. Palatov A New Species of the Genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean Peninsula Diversity Amphipoda <i>Niphargus</i> barcoding COI mtDNA diversity phylogeography |
| title | A New Species of the Genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean Peninsula |
| title_full | A New Species of the Genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean Peninsula |
| title_fullStr | A New Species of the Genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean Peninsula |
| title_full_unstemmed | A New Species of the Genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean Peninsula |
| title_short | A New Species of the Genus <i>Niphargus</i> Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean Peninsula |
| title_sort | new species of the genus i niphargus i schiodte 1849 crustacea amphipoda niphargidae from groundwater habitats of the tarkhankut upland crimean peninsula |
| topic | Amphipoda <i>Niphargus</i> barcoding COI mtDNA diversity phylogeography |
| url | https://www.mdpi.com/1424-2818/14/12/1010 |
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