Comparison of Spatial Distribution Patterns of Dung-Feeding Scarabs Coleoptera Scarabaeidae Geotrupidae in Wooded and Open Pastureland in the Mediterranean Dehesa Area of the Iberian Peninsula

Publication Type:Journal Article
Year of Publication:1991
Authors:E. Galante, Garcia, R. M., Barrera, I., Galindo, P.
Journal:Environmental Entomology
Keywords:Animalia-, Animals-, Arthropoda-, Arthropods-, Coleoptera-: Insecta-, dung elimination seasonal distribution trapping, Insects-, Invertebrata-, Invertebrates-

The seasonal and spatial distributions of dung-feeding scarabs in an open pastureland and in wooded (holm oak) pastureland in a typical Mediterranean area of the western part of the Iberian Peninsula (Salamanca) were compared. Six pitfall traps baited with bovine dung were placed in each habitat according to a model by J. P. Lumaret. Only beetles in the families Scarabaeidae and Geotrupidae were studied because they are the most for 1 yr produced 6,909 specimens. Of the 18 species found, the largest beetles and biomass were concentrated mainly in the wooded habitat, especially in the summer. This constitutes a problem for dung removal because large amounts of dung remain in open pasturelands, possibly resulting in the impoverishment of such areas.

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