Language: German, with trilingual introduction in English, German, and French
The knowledge of the harvestmen fauna in the Grand Duchy of Luxembourg is summarized by means of a distribution atlas. This study is based on 3091 datasets (> 16 000 specimens), with the bulk of the data originating from surveys carried out by the National Museum of Natural History in Luxembourg (MNHNL) between 1988 and 2006. Historical data from 26 sampling localities and contemporary data from ca. 200 sites approximate a frequency of 70.5% of the 5 × 5 km grid squares of the country. To date, 31 species of harvestmen were recorded from Luxembourg, of which six have to be categorized as neobiota (Nemastoma dentigerum, Opilio canestrinii, Dicranopalpus ramosus, Leiobunum religiosum, Leiobunum sp. A and Nelima sempronii). The most abundant species were Oligolophus tridens (23.9% of total abundance), Rilaena triangularis (12.1%), Phalangium opilio (11.2%) and Opilio canestrinii (8.4%). For each species, geographic distribution, phenology and association with CORINE land cover (CLC) categories is illustrated. A summary account of zoogeography, community association and potential threat is given. Two specialized inhabitants of xerothermophilic open landscape, Lacinius horridus and Nelima silvatica, are considered at risk of extinction. The Wall Harvestman Opilio parietinus is critically endangered.
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