Glaser, F. & Kopf, T. (2018): Ameisen (Hymenoptera, Formicidae) im Wildnisge- biet Samina- und Galinatal (Vorarlberg, Österreich / Fürstentum Liechtenstein). inatura – Forschung online, 61: 32 S. Ameisen (Hymenoptera, Formicidae) im Wildnis Nr. 61 2018 gebiet Samina und Galinatal (Vorarlberg, Österreich / Fürstentum Liechtenstein) Florian Glaser1 & Timo Kopf2 1 Dr. Florian Glaser, Technisches Büro für Biologie Walderstraße 32, A-6067 Absam E-Mail:
[email protected] 2 Mag. Timo Kopf Herzog-Sigmund-Straße 4a, A-6176 Völs Abstract The ant fauna of the Samina valley (Vorarlberg, Liechtenstein) and Galina valley (Vorarlberg) was intensively studied to assess the local conservation value and to detect relations between ant fauna and elevation, type of habitat, or locality. Additionally, we compared the sample efficiency of pit fall traps and bowl traps with varying colours. Field data have been collected by pit- fall traps, bowl traps, and hand-collected nest samples between 2015 and 2017. About 27.000 specimen and 35 species were recorded. The mean number of records and individual number of several species and guilds (constituted by threat status, soil temperature preferences, habitat requirements) were significantly higher in pitfall traps than in bowl traps. In bowl traps similar amounts of winged sexuals as in pit fall traps, but less species and worker individuals were collected. Furthermore, we found significant patterns of single species and guilds, in relation to locality (Galina valley versus Samina valley), elevation, habitats, and succession. Ten (28.6 %) of the recorded ant species are listed in the regional red list of Vorarlberg. The occurrence of the regionally endan- gered Formica selysi, a specialized ripicolous ant, represents a high conservation value indicating sufficient habitat dynamics in the Samina Valley.