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| Wägele, Johann-Wolfgang. |
| The evolution of the stygobiontic isopods is discussed correlating the phylogenetic system with biogeography. All stygobiontic isopods probably are derived from remote marine ancestors. The colonization of subterranean aquatic biotopes occurred in two ways: (1) via the coastal groundwater in the case of the Microparasellidae, Gnathostenetroididae, Stenetriidae, and in Cyathura (Stygocyathura), (2) in most families, however, via epigean freshwater ancestors. Ancient freshwater isopods that must already have existed before the Cretaceous and whose stygobiontic phylogenetic lines partly must have existed before the opening of the Atlantic are the Aselloidea, Calabozoida, Phreatoicidea, and probably also the Protojaniridae. In the course of Cretaceous and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Isopoda; Evolution; Stygofauna; Biogeography. |
| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/504433 |
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| Bowman, Thomas E.. |
| Lovenula (Neolovenula) alluaudi is widespread on Lanzarote, where it occurred at 22 of the 105 stations. On Fuerteventura it was found at only 2 of the 53 stations, both in the extreme northwest part of the island. It was also found in a reservoir on the south side of the small island of Alegranza. Samples collected at several hundred stations in the other Canary Islands failed to yield a single calanoid, supporting the belief that the eastern islands are fragments of the African continent that drifted to deeper waters. Males outnumbered females in about 2/3 of the samples, often heavily. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Copepoda; Calanoida; Lovenula; Canary Islands; Stygofauna. |
| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/504428 |
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| Saccò, Mattia; Blyth, Alison J.; Humphreys, William F.; Karasiewicz, Stephane; Meredith, Karina T.; Laini, Alex; Cooper, Steven J.b.; Bateman, Philip W.; Grice, Kliti. |
| Groundwaters host highly adapted fauna, known as stygofauna, which play a key role in maintaining the functional integrity of subterranean ecosystems. Stygofaunal niche studies provide insights into the ecological dynamics shaping the delicate balance between the hydrological conditions and community diversity patterns. This work aims to unravel the ecological trends of a calcrete stygofaunal community, with special focus on niche dynamics through the Outlying Mean Index analysis (OMI) and additional calculation of Within Outlying Mean Indexes (WitOMI), under three rainfall regimes. Temperature and pH changed significantly among different rainfall conditions (P < .001), and together with salinity were the most influential drivers in shaping stygofaunal... |
| Tipo: Text |
Palavras-chave: Stygofauna; Ecological niche; Groundwater; Calcrete; Rainfall; WitOMI. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00599/71110/69806.pdf |
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| Karanovic, T.. |
| A small collection of copepod samples from several wells in the Canterbury region, South Island, was examined. It contained a few cosmopolitan cyclopoid species, three interesting harpacticoids, as well as two new cyclopoid genera. The latter are presented in this paper, together with a redescription and first description of the male of Goniocyclops silvestris Harding, 1958, a cyclopoid species previously known only from North Island. Both new genera are from the Diacyclops-Acanthocyclops complex. Abdiacyclops gen. nov. is easily distinguishable from the complex by its unique swimming legs segmentation formula (2/2, 3/3, 3/3, 3/3), and is so far monospecific and known only after females. The most important characters of the second new genus, Zealandcyclops... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Stygofauna; Cyclopoida; New Zealand; Taxonomy; Abdiacyclops; Zealandcyclops; Goniocyclops; 42.74. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/209649 |
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