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Bücher Wissen & Bildung Naturwissenschaft, Medizin, Informatik, Technik Biologie Botanik Iconographia Diatomologica. Annotated Diatom Micrographs / Iconographia Diatomologica. Annotated Diatom Micrographs
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Iconographia Diatomologica. Annotated Diatom Micrographs / Iconographia Diatomologica. Annotated Diatom Micrographs
Horst Lange-Bertalot (Gebundene Ausgabe, Deutsch)
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Beschreibung
The diatom flora of three differing types of oligotrophic lakes was investigated. These lake-types are becoming rarer, even outside Europe. Generally, oligotraphentic species are much less known than the mostly cosmopolitan diatoms in high densities in eutrophic waters. 1.A single sample from the extremely electrolyte poor, but humid acid rich Julma Ölkky in Finland contained 502 taxa. This… includes morphotypes that at the moment have no formal taxonomic rank. 2.Several samples from the electrolytic poor Weinfelder Maar in the Eifel, West Germany. 216 taxa were found in this humid acid free, clear - water lake. 3.Several samples from the CaCo3 or hydrogen carbonate well-buffered
and relatively electrolyte poor Mittersee in Austria produced 318 taxa. As 213 taxa ( from total of 1036) occurred in two or all three of the lakes studied, the number of different taxa comes to 832 (and even some more when the uncertain species are included). This represents about 50% of the total number of c. 1600 taxa recorded in the "Süsswasserflora von Mitteleuropa" (1986-1991) for all of Europe. Notable is the fact that this number includes over 300 halophilic resp. mesohalobic species, that for ecological reasons connot occur in the three lakes investigated Of the c.800 taxa documented here, over 200 could not be identified, an astonishing 25% of the total. Our patchy knowledge of the diversity in oligotrophic waters of the relatively well - researched region of Europe is underlined by this. 55 of these are here described as new, and a further 31 are recognised as being new taxa but formally described elsewhere. 46 other taxa are also probably new. The remainig 80 entities cannot be identified or
their identification is uncertain. From the established taxa, 66 were
treated as a nov.comb., nov.stat. or nov.nom. Two new genera
(ex Navicula s.l.) are described: Geissleria and Chamaepinnularia.-
This volume has bilingual (English/German) introduction, summary of findings and discussion. Systematic-taxonomic part in alphabetical sequence, descriptions bilingual (Latin/German), additional explanations in German. Dieses Produkt haben wir gerade leider nicht auf Lager.
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Technische Daten
Erscheinungsdatum
01.01.1996
Sprache
Deutsch
EAN
9783874293860
Herausgeber
Koeltz Botanical Books
Serien- oder Bandtitel
Iconographia Diatomologica. Annotated Diatom Micrographs
Sonderedition
Nein
Autor
Horst Lange-Bertalot
Seitenanzahl
390
Auflage
1
Einbandart
Gebundene Ausgabe
Buch Untertitel
Indicators of Oligotrophy. 800 taxa representative of three ecologically distinct lake types. Carbonate buffered - Oligodystrophic - Weakly buffered soft water
Bandzählung
BD 2
Schlagwörter
Iconographia Diatomologica, Soft water, Oligotrophy, Kieselalgen, Diatomeen, Indicator, Diatom, Oligodystrophic, Carbonate buffered, Weakly buffered sof water
-.-
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