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Springs are ecomorphologically and faunistically diverse freshwater ecosystems. Their limnological classification has been a focus of interest since crenic research began. Despite many attempts to include the crenic fauna in the classification of springs, there is no faunistic crenon typology. Over a three-year period we investigated the macroinvertebrate assemblages and the physical, chemical and ecomorphological conditions of 82 springs in the Swiss Jura Mountains, north-western Switzerland. Based on these data we selected the 25 least-disturbed springs to develop a faunistic crenon classification. Based on functional feeding groups we differentiated three crenon groups. An analysis of similarities and nonmetric multidimensional scaling for the substratum types supported the crenon groupings. In general we can distinguish between springs that are dominated by scrapers and characterized by a lotic environment, and those that are mostly inhabited by filtering collectors, associated with a lentic environment. Those two crenon types are the extremes of a continuum. Particular crenon forms, such as those with extensive carbonate deposits, lie between these extremes. This third group is characterized by gathering collectors and shredders. Using this approach we can distinguish faunistic crenon types, based on functional feeding groups, which reflect the abiotic conditions within the springs. We provide a foundation for a faunistic crenon typology which now can be tested in other landscapes and will then be applicable to other low mountain ranges in Europe. VON FUMETTI, Stefanie, and Peter NAGEL. 2011. “A First Approach to a Faunistic Crenon Typology Based on Functional Feeding Groups”. Journal of Limnology 70 (s1):147-54. https://doi.org/10.4081/jlimnol.2011.s1.147. More Citation Formats ACM ACS APA ABNT Chicago Harvard MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Downloads Download data is not yet available. Citations Similar Articles Edyta Buczyńska, Stanisław Czachorowski, Paweł Buczyński, Joanna Pakulnicka, Edyta Stępień, Agnieszka Szlauer-Łukaszewska, Robert Stryjecki, Andrzej Zawal, Environmental heterogeneity at different scales: key factors affecting caddisfly larvae assemblages in standing waters within a lowland river catchment , Journal of Limnology: Vol. 76 No. 2 (2017) Zacarias Fresno Lopez, Tommaso Cancellario, Diego Fontaneto, Lyudmila Kamburska, Karimullah Karimullah, Robert L. Wallace, Elizabeth J. Walsh, Radoslav Smolak, A georeferenced dataset for occurrence records of the phylum Rotifera in Africa , Journal of Limnology: Vol. 82 No. s1 (2023): Georeferenced freshwater biodiversity data

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