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2006 | 08 | 2 |

Tytuł artykułu

The trophic niche of the Geoffroy's bat (Myotis emarginatus) in south-western Germany

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
In Germany, the Geoffroy's bat (Myotis emarginatus) is one of the rarest bat species. In south-western Germany (federal state of Baden-Württemberg), only four nursery roosts of M. emarginatus are known. Referring to the trophic niche of this species and to own observations, we hypothezied that cowsheds are important foraging areas for M. emarginatus in Central Europe. This would have important implications for the conservation of this species. To test this hypothesis we conducted a diet analysis aiming at three major aspects: the trophic niche, indications for foraging habitats used, and the importance of these foraging habitats throughout the nursery season. Flies (Brachycera) made up the largest volume in the diet of M. emarginatus throughout the season, followed by spiders (Araneida) and butterflies (Lepidoptera). Among the flies, the genus Musca and the species Stomoxys calcitrans were found in more than half of the investigated faecal pellets. Both of these fly-taxa are strongly related to cattle farming. Therefore we conclude that the individuals of the investigated colony of M. emarginatus were mainly hunting in the vicinity of cattle farms during the whole nursery season. Consequently, the preservation of traditional cattle farming is likely to play a key role for the conservation of M. emarginatus in Central Europe.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

08

Numer

2

Opis fizyczny

p.445-450,fig.,ref.

Twórcy

autor
  • Department Landscape, Swiss Federal Research Institute WSL, Section Nature Protection and Historical Ecology, Zurcherstrasse 111, CH-8903 Birmensdorf, Switzerland
autor

Bibliografia

  • Arlettaz, R., N. Perrin, and J. Hausser. 1997. Trophic resource partitioning and competition between the two sibling bat species Myotis myotis and Myotis blythii. Journal of Animal Ecology, 66: 897-911.
  • Arndt, J. 2005. Landwirtschaft in Baden-Württemberg — ein Mosaik aus regionaler Vielfalt. Statistisches Monatsheft Baden-Württemberg, 2: 19-24.
  • Bährmann, R. 1995. Bestimmung wirbelloser Tiere. Gustav Fischer Verlag, Jena, 362 pp.
  • Bauerová, Z. 1986. Contribution to the trophic bionomics of Myotis emarginatus. Folia Zoologica, 35: 305-310.'
  • Beck, A. 1995. Fecal analysis of European bat species. Myotis, 32-33: 109-119.
  • Belwood, J. J., and M. B. Fenton. 1976. Variation in the diet of Myotis lucifugus (Chiroptera: Vespertilionidae). Canadian Journal of Zoology, 54: 1674-1678.
  • Boye, P., M. Dietz, and M. Weber. 1999. Fledermäuse und Fledermausschutz in Deutschland. BfN-Schriftenvertrieb im Landwirtschaftsverlag, Bonn-Bad Godesberg, 110 pp.
  • Brinkmann, R., H. Meinig, and P. Boye. 2004. Myotis emarginatus. Pp. 496-502, in Das europäische Schutzgebietssystem Natura 2000: Band 2, Wirbeltiere (B. Petersen, G. Ellwanger, R. Bless, P. Boye, E. Schröder, and A. Ssymank, eds.). Schriftenreihe für Landschaftspflege und Naturschutz, 69: 1-693.
  • Dickman, C. R„ and C. Huang. 1988. The reliability of fecal analysis as a method for determining the diet of insectivorous mammals. Journal of Mammalogy, 69: 108-113.
  • Hennig, W. 1964. Muscidae. Pp. 625-1110, in Die Fliegen der paläarktischen Region, VII 2 (E. Lindner, ed.). E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, 1110 pp.
  • Krull, D., A. Schümm, W. Metzner, and G. Neuweiler. 1991. Foraging areas and foraging behavior in the Geoffroy's bat, Myotis emarginatus (Vespertilionidae). Behavioral Ecology and Sociobiology, 28: 247-253.
  • Künast, C. 1985. Lock- und Köderstoffe zur Kontrolle von im Stall lebenden Fliegenarten. Ph.D. Thesis, TU Münich, Münich, 134 pp.
  • Kunz, T. H., and J. O. Whitaker, Jr. 1983. An evalution of fecal analysis for determining food habits of insectivorous bats. Canadian Journal of Zoology, 61: 1317-1321.
  • McAney, C., C. Shiel, C. Sullivan, and J. Fairley. 1991. The analysis of bat droppings. Occasional Publication, The Mammal Society, London, 14: 1—48.
  • R Development Core Team. 2005. R: a language and environment for statistical computing. Version 2.2.0. R Foundation for Statistical Computing, Vienna.
  • Richarz, K., D. Krull, and A. Schumm. 1989. Quartieransprüche und Quartierverhalten einer mitteleuropäischen Wochenstubenkolonie von Myotis emarginatus (Geoffroy, 1806) im Rosenheimer Becken, Oberbayern, mit Hinweisen zu den derzeit bekannten Wochenstubenquartieren diese Art in der BRD. Myotis, 27:111-130.
  • Robinson, M. F., and R. E. Stebbings. 1993. Food of the serotine bat, Eptesicus serotinus — is faecal analysis a valid qualitative and quantitative technique? Journal of Zoology (London), 231: 239-248.
  • Schumm, A., D. Krull, and G. Neuweiler. 1991. Echolocation in the notch-eared bat, Myotis emarginatus. Behavioral Ecology and Sociobiology, 28: 255-261.
  • Siemers, B. M., and H.-U. Schnitzler. 2004. Echolocations signals reflect niche differentiation in five sympatric congeneric bat species. Nature, 429: 657-661.
  • Steck, C. 2001. Die Nahrungsökologie des Grossen Mausohrs (Myotis myotis) heute und vor hundert Jahren — eine historisch-ökologische Fallstudie. Diploma Thesis, University of Zurich, Zurich, 63 pp.
  • Topál, G. 2001. Myotis emarginatus (Geoffroy, 1806) — Wimperfledermaus. Pp. 369—404, in Handbuch der Säugetiere Europas, Band 4: Fiedertiere, Teil I: Chiroptera I, Rhinolophidae, Vespertilionidae 1 (F. Krapp, ed.). Aula-Verlag, Wiebelsheim, 602 pp.

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Bibliografia

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