Helmut Sattmann

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Trochulus oreinos oreinos and T. oreinos scheerpeltzi are two land snail taxa endemic to the Northeastern Austrian Alps, which have been regarded as subspecies of the highly variable, widespread land snail T. hispidus. We analysed these three taxa morphologically and genetically to evaluate whether a delimitation between them is possible and, if so, to(More)
Organisms provide some of the most sensitive indicators of climate change and evolutionary responses are becoming apparent in species with short generation times. Large datasets on genetic polymorphism that can provide an historical benchmark against which to test for recent evolutionary responses are very rare, but an exception is found in the brown-lipped(More)
Die Zerkariendermatitis ist eine durch Larvenstadien von Saugwürmern der Familie Schistosomatidae hervorgerufene und durch juckende Papeln charakterisierte Hautirritation. In den Tropen und Subtropen kommen auch humanspezifische Arten vor (Schistosoma), die außer der Dermatitis ernste Erkrankungen hervorrufen können, nämlich die Blasen- und die(More)
Im Rahmen parasitologischer Untersuchungen an der jüngst nach Österreich eingewanderten Fischart Schwarzmundgrundel Apollonia melanostoma (Pallas, 1814) von 3 Standorten an der Donau im Jahr 2007 wurde der digene Trematode Bucephalus polymorphus Baer, 1827 zum ersten Mal in Österreich nachgewiesen. Enzystierte Metazerkarien des Wurmes wurden auf den(More)
A total of 11 specimens of a nereidid polychaete, which had been collected from the inner part ("Bay of Miya" is the old place name) of lse Bay in central Japan and preserved in the Natural History Museum Vienna, were taxonomically examined. They were all identified as the brackishwater nereidid, Hediste japonica (Izuka, 1908), which was previously known(More)
The giant liver fluke Fascioloides magna, an invasive species originating from North America, was recorded in Austria in the wild for the first time in 2000. Since then, various data concerning the epidemiology in snail intermediate hosts and cervid final hosts have been reported. Galba truncatula acts as snail intermediate host, and red deer, roe deer and(More)
Harboring a large number of endemic species, the Alps and the Western Carpathians are considered as major centers of biodiversity. Nonetheless, the general opinion until the turn of the millennium was that both Central European mountain regions did not provide suitable habitat during the Last Glacial Maximum, but were colonized later from southern refuges.(More)
The habitat needs and potential threats to Trochulus oreinos oreinos (Wagner 1915) and Cylindrus obtusus (Draparnaud 1805) were assessed by comparing vegetation maps and our own records. We selected four sites from which we had adequate samples and for which exact vegetation maps were available: the mountains Hoch-schwab, Schneealpe, Rax and Schneeberg.(More)
Delimitation of species is often complicated by discordance of morphological and genetic data. This may be caused by the existence of cryptic or polymorphic species. The latter case is particularly true for certain snail species showing an exceptionally high intraspecific genetic diversity. The present investigation deals with the Trochulus hispidus(More)
The Central and Southern European mountain ranges represent important biodiversity hotspots and show high levels of endemism. In the land snail genus Orcula Held, 1837 nine species are distributed in the Alps and a few taxa inhabit the Carpathians, the Dinarids and the Western Black Sea region. In order to elucidate the general patterns of temporal and(More)