A morphology-based identification key to the Cognettia species of the world (Clitellata: Enchytraeidae)
DOI:
https://doi.org/10.25674/so91103Keywords:
Annelida, ChamaedrilusAbstract
Morphological characters for identification of Cognettia species are presented both as a dichotomous key and in table form. Focus is on non-sexual characters, as many species reproduce mainly asexually, and sexually mature individuals can be rare.
Downloads
References
Abrahamsen, G. (1990): Influence of Cognettia sphagnetorum (Oligochaeta, Enchytraeidae) on nitrogen mineralization in homogenized mor humus. – Biology and Fertility of Soils 9:159-162 [https://www.doi.org/10.1007/Bf00335800].
Bataillon, T., N. Galtier, A. Bernard, N. Cryer, N. Faivre, S. Santoni, D. Severac, T.N. Mikkelsen, K.S. Larsen,
C. Beier, J. G. Sorensen, M. Holmstrup & B. K. Ehlers (2016): A replicated climate change field experiment reveals rapid evolutionary response in an ecologically important soil invertebrate. – Global Change Biology 22: 2370–2379 [https://www.doi.org/10.1111/gcb.13293].
Bretscher, K. (1906): Über ein neues Enchytraeiden Genus. – Zoologischer Anzeiger 29: 672–674.
Briones, M. J. I., P. Ineson & J. Poskitt (1998): Climate change and Cognettia sphagnetorum: effects on carbon dynamics in organic soils. – Functional Ecology 12: 528–535 [https://www.doi.org/10.1046/j.1365-2435.1998.00218.x].
Cernosvitov, L. (1945): Oligochaeta from Windermere and the Lake District. – Proceedings of the Zoological Society of London 114: 523–548 [https://www.doi.org/10.1111/j.1096-3642.1945.tb00241.x].
Černosvitov, L. (1928): Die Oligochaetenfauna der Karpathen. – Zoologische Jahrbücher Abteilung für Systematik, Geographie und Biologie der Tiere 55: 1–28.
Christensen, B. (1959): Asexual Reproduction in the Enchytraeidae (Olig). – Nature 184: 1159–1160 [https://www.doi.org/10.1038/1841159a0].
Christensen, B. (1961): Studies on Cyto-Taxonomy and Reproduction in the Enchytraeidae. – Hereditas 47: 387–450 [doi:10.1111/j.1601-5223.1961.tb01782.x].
Christensen, B. & K. Dózsa-Farkas (1999): The enchytraeid fauna of the Siberian tundra (Oligochaeta, Enchytraeidae). – The Royal Danish Academy of Sciences and Letters, Biologiske Skrifter 52: 1–37.
Dózsa-Farkas, K. (1989): Neue Enchytraeiden-Arten (Oligochaeta) aus Ekuador. – Acta Zoologica Hungarica 35: 191–203.
Dozsa-Farkas, K., T. Felföldi, H. Nagy & Y. Hong (2018): New enchytraeid species from Mount Hallasan (Jeju Island, Korea) (Enchytraeidae, Oligochaeta). – Zootaxa 4496: 337–381 [https://www.doi.org/10.11646/zootaxa.4496.1.27].
Dumnicka, E. (2010): Two new freshwater enchytraeid species (Oligochaeta) from the Italian Alps. – Italian Journal of Zoology 77:38-43 [https://www.doi.org/10.1080/11250000902855505]
Friend, H. (1913): British enchytraeids. V. Species new to science. – Journal of the Royal Microscopical Society 1913: 255–271.
Healy, B. (1975): A description of five new species of Enchytraeidae (Oligochaeta) from Ireland. – Zoological Journal of the Linnean Society 56: 315–326.
Healy, B. (1996): Records of Enchytraeidae (Annelida: Oligochaeta) from west Florida, 1. Mesenchytraeus, Cognettia, Bryodrilus, Hemienchytraeus, Henlea and Buchholzia. – Proceedings of the Biological Society of Washington 109: 118–137.
ICZN (2018): Opinion 2423 (Case 3689) – Cognettia Nielsen & Christensen, 1959 (Annelida, Oligochaeta, Enchytraeidae): conditional precedence given over Euenchytraeus Bretscher, 1906 and Chamaedrilus Friend, 1913. – The Bulletin of Zoological Nomenclature 75: 279–281 [https://www.doi.org/10.21805/bzn.v75.a060].
Issel, R. (1905): Oligocheti inferiori della fauna italica. – Zoologische Jahrbücher Abteilung für Anatomie und Ontogenie der Tiere, Jena 22: 451–476.
Lundkvist, H. (1983): Effects of clear-cutting on the enchytraeids in a Scots Pine forest soil in Central Sweden. – Journal of Applied Ecology 20: 873–885 [https://www.doi.org/10.2307/2403132].
Martinsson, S., K. Dózsa-Farkas, E. Rota & C. Erséus (2017): Placing the forgotten: On the positions of Euenchytraeus and Chamaedrilus in an updated enchytraeid phylogeny (Clitellata: Enchytraeidae). – Invertebrate Systematics 31: 85–90 [https://www.doi.org/10.1071/IS16042].
Martinsson, S. & C. Erséus (2014): Cryptic diversity in the well-studied terrestrial worm Cognettia sphagnetorum (Clitellata: Enchytraeidae). – Pedobiologia 57: 27–35 [doi:10.1016/j.pedobi.2013.09.006]
Martinsson, S., M. Klinth & C. Erséus (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. – Zootaxa 4521: 417–429 [doi:10.11646/zootaxa.4521.3.7]
Martinsson, S., E. Rota & C. Erséus (2015a): On the identity of Chamaedrilus glandulosus (Michaelsen, 1888) (Clitellata, Enchytraeidae), with the description of a new species. – Zookeys 501: 1–14 [https://www.doi.org/10.3897/zookeys.501.9279].
Martinsson, S., E. Rota & C. Erséus (2015b): Revision of Cognettia (Clitellata, Enchytraeidae): re-establishment of Chamaedrilus and description of cryptic species in the sphagnetorum complex. – Systematics and Biodiversity 13: 257–277 [https://www.doi.org/10.1080/14772000.2014.986555].
Michaelsen, W. (1888): Beiträge zur Kenntnis der deutschen Enchyträiden-fauna. – Archiv für Mikroskopische Anatomie 31: 483–498.
Mira, L., I. Katja & S. Heikki (2002): The significance of Cognettia sphagnetorum (Enchytreaidae) on nitrogen availability and plant growth in wood ash-treated humus soil. – Plant and Soil 246: 31–39 [doi:10.1023/a:1021515313890].
Moszyński, A. (1938): Marionina paxi, ein neuer Borstenwurm von den Haberwiesen. – Beiträge zur Biologie des Glatzer Schneeberges 4: 343–345.
Nakamura, Y. (2001): A new species of the genus Cognettia from Mt. Hayachine, Northern Japan (Oligochaeta: Enchytraeidae) (Enchytraeids in Japan 6). – Edaphologia 68: 15–16.
Nielsen, C. O. & B. Christensen (1959): The Enchytraeidae. Critical revision and taxonomy of European species. – Natura Jutlandica 8-9: 1–160.
Nurminen, M. (1965): Enchytraeids (Oligochaeta) from northern Norway and western Lappland. – Annales Zoologici Fennici 2: 11–15.
Pokarzhevskii, A. D. & T. Persson (1995): Effects of oxalic acid and lime on the enchytraeid Cognettia sphagnetorum (VEJD) in mor humus. – Water, Air, & Soil Pollution 85: 1045–1050 [https://www.doi.org/10.1007/bf00476968].
Römbke, J. (1989): Zur Biologie eines Buchenwaldbodens 12. Die Enchytraeen. – Carolinea 47: 55–92.
Schenková, J., M. Bílková, V. Polášková, M. Horsák & J. Schlaghamerský (2018): Variation of Clitellata (Annelida) assemblages related to water saturation in groundwater-dependent wetlands. – Hydrobiologia 823: 49–65 [https://www.doi.org/10.1007/s10750-018-3695-8].
Schmelz, R. M. & R. Collado (2010): A guide to European terrestrial and freshwater species of Enchytraeidae (Oligochaeta). – Soil Organisms 82: 1–176.
Schmelz, R. M., R. Collado & J. Römbke (2015): Case 3689: Cognettia Nielsen & Christensen, 1959 (Annelida, Oligochaeta, ENCHYTRAEIDAE): proposed precedence over Euenchytraeus Bretscher, 1906 and Chamaedrilus Friend, 1913. – Bulletin of Zoological Nomenclature 72: 186–192.
Springett, J. A. (1970): The Distribution and Life Histories of Some Moorland Enchytraeidae (Oligochaeta). – The Journal of Animal Ecology 39: 725 [https://www.doi.org/10.2307/2863].
Šustr, V., J. Chalupský & V. Krištůfek (1997): Effects of artificial acidification and liming on the activity of digestive enzymes in Cognettia sphagnetorum (Vejdovský, 1878) (Annelida, Enchytraeidae). – Biology and Fertility of Soils 24: 227–230 [https://www.doi.org/10.1007/s003740050235].
Torii, T. (2015): Descriptions of two new and one newly recorded enchytraeid species (Clitellata, Enchytraeidae) from the Ozegahara Mire, a heavy snowfall highmoor in Central Japan. – Zootaxa 4000: 473–482 [https://www.doi.org/10.11646/zootaxa.4000.4.6].
Vejdovský, F. (1878): Zur Anatomie und Systematik der Enchytraeiden. – Sitzungsberichte der Königlich Böhmischen Gesellschaft der Wissenschaften 1877: 294–304.
Downloads
Published
Issue
Section
License
Soil Organisms is committed to fair open access publishing. All articles are available online without publication fees. Articles published from Vol. 96 No. 3 (2024) onwards are licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Articles published from Vol. 80 No. 1 through Vol. 96 No. 2 are available under the previous terms, allowing non-commercial, private, and scientific use.
