Petite Camargue Alsacienne», Saint-Louis, Haut-Rhin, Frankreich

80 Luka, Germann, Marggi, Nagel, Luka, Lenzin, Ochsenbein, Durrer Mitt. Naturf. Ges. beider Basel 14
Abstract: Beetles of the «Petite Camargue Alsacienne» nature reserve, Saint-Louis, Alsace,
France (Carabidae, Staphylinidae, Curculionoidea). Results of a number of ecological studies
were analysed and used to compile an up-to-date species list of ground beetles as well as new species
lists of rove beetle and weevil species for the Petite Camargue Alsacienne (PCA) nature reserve
(Saint-Louis, Alsace, France). The lists were discussed and analysed with a view to species diversity
and occurrences of the most common species as well as rare and/or endangered species.
The lists of ground beetles, rove beetles, and weevils are based on eight (1991 to 2008), three
(1999, 2003 and 2008), and one (2008) survey years respectively. A total of 18 different sites representing
nine habitat types were surveyed using pitfall traps in periods of between one and five years,
depending on the sites. The total survey effort was 3323 trap-days for ground beetles, 1050 trap-days
for rove beetles, and 98 trap-days for weevils.
Since Luka et al. (1998) eleven new species of ground beetle have been confirmed at PCA, resulting
in a total of 160 ground beetle species known to occur at PCA by 2011. All 176 rove beetle species
as well as 50 weevil species (Curculionidae sensu lato) represent new records for PCA.
Three ground beeetle species, Agonum piceum (Linné, 1758), Amara littorea C. G. Thomson, 1857
and Harpalus subcylindricus Dejean, 1829 are new records for Alsace. Seven rove beetle species,
Alevonota rufotestacea (Kraatz, 1856), Atheta pervagata G. Benick, 1975, Bledius crassicollis Lacordaire,
1835, Callicerus obscurus Gravenhorst, 1802, Oxypoda brachyptera (Stephens, 1832),
Oxypoda lurida Wollaston, 1857 and Quedius semiobscurus (Marsham, 1802) are also new records
for Alsace; additionally, 50 weevil species are new records for Upper Alsace. All of the 50 weevil
species collected had already been recorded in Alsace, however for some of the species few records
had been available to date. Eight of the species recorded can be considered remarkable and add to
the weevil fauna of Alsace. Of these, the following six species were caught in pitfall traps: Bagous
lutulentus (Gyllenhal, 1813), Ceutorhynchus resedae (Marsham, 1802), Hylobius transversovittatus
(Goeze, 1777), Mogulones abbreviatulus (Fabricius, 1792), Neophytobius quadrinodosus (Gyllenhal,
1813) and Pelenomus commari (Panzer, 1794). Manual catches resulted in the capture of the two
species Sitona waterhousei (Walton, 1846) and Hypera striata (Boheman, 1834).
Following revitalisation and restoration activities, the PCA nature reserve, which is now under a
semi-natural management regime, provides habitat for numerous endangered species. 35 % of all
recorded carabid species are red-listed in Switzerland (30 species) or in the German state of Baden-
Württemberg (51 species). Among the weevils, 10 species (25 %) are red-listed in Germany (nationwide,
Bavarian and Baden-Württemberg lists). The reserve demonstrates that, even within a densely
populated and agriculturally utilised region, conserving the remnants of the former floodplain landscapes
can indeed serve to maintain an extraordinary wealth of native fauna.
Résumé: Coléoptères de la Réserve Naturelle «Petite Camargue Alsacienne», Saint-Louis, Alsace,
France (Carabidae, Staphylinidae, Curculionoidea). Les résultats de plusieurs études écologiques
ont fait l’objet d’une analyse qui a permis d’établir un inventaire révisé des Carabidés et
aussi plusieurs listes de Staphilinidés et de Curculionidés en Petite Camargue Alsacienne (PCA, F-
Saint-Louis Alsace). Ces inventaires ont été analysés et discutés en fonction de la diversité des espèces,
de leur abondance ou de leur rareté et de leur degré de protection.
L’inventaire des Carabidés est basé sur 18 années de piégeage (de 1991 à 2008), pour les Staphilinidés
de 3 années (1999, 2003 et 2008) et pour les Curculionidés par extension (Curculionoidea) d’une
année (2008). Au total, 18 surfaces de terrain de 9 genres de biotopes différents ont été examinées
avec des pièges terrestres posés pendant 1 à 5 années suivant la dimension du terrain. Les Carabidés
totalisent 3323 journées de piégeage, les Staphilinidés 1050 journées et les Cucurlionidés de 98 journées.
Depuis Luka et al. (1998) 11 espèces supplémentaires de Carabidés sont identifiées, soit un total de
160 Carabidés en PCA. 176 Staphilidinés ainsi que 50 Curculionidés sont des premières identifica-