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Spatio-temporal use of the urban habitat by feral pigeons (Columba livia)
Feral pigeons are descendants of wild rock pigeons that have adapted to the urban habitat. They have partially conserved the foraging behaviour of their wild ancestors (flights to agricultural areas)Expand
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Songs, genetics, and morphology: revealing the taxonomic units in the European Cicadetta cerdaniensis cicada group, with a description of new taxa (Hemiptera: Cicadidae)
Recent acoustic studies have revealed that Cicadetta montana (Scopoli, 1772), which was once thought to be asingle widespread Palaearctic cicada species, is actually a complex of many taxa. AlthoughExpand
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Archostemata - Myxophaga - Adephaga
A comprehensive work covering the about 100,000 species of Coleoptera known to occur in the Palaearctic Region. The complete work is planned for 8 volumes that will be published in intervals of aboutExpand
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Taxonomy and biogeography of Central European Kybos (Insecta, Hemiptera, Cicadellidae)
The Central European species of the taxonomically difficult Holarctic typhlocybine genus Kybos are revised. Currently it is impossible to identify females and nymphs. In addition the otherwiseExpand
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Temperature variability and its influence on macroinvertebrate assemblages of alpine springs
Constant water temperature is thought to be a key factor for macroinvertebrates inhabiting springs. Springs in low mountain ranges are usually fed by deep groundwater. At high altitudes, they are, toExpand
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Non-causal complementary filters
  • P. Nagel
  • Mathematics, Computer Science
  • Signal Process.
  • 1 November 1992
The design of complementary IIR lowpass and highpass filters is transferred into the sphere of non-causal filtering. Expand
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Environmental correlates of phylogenetic endemism in amphibians and the conservation of refugia in the Coastal Forests of Eastern Africa
Aims To quantify the spatial distribution of amphibian phylogenetic endemism (PE), an indicator of potential refugia, to test PE for correlations with current and historical environmentalExpand
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An innovative measurement and imaging technique for electron beam testers is introduced, that promises to expand the present applicability of such systems for chip-internal voltage measurements by the capability of chip- internal current measurement. Expand
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Spin State in Perfluorinated FePc Films on Cu(111) and Ag(111) in Dependence on Film Thickness
The electronic structure of the central iron ion of perfluorinated iron phthalocyanine (FePcF16) in thin films has been studied on Cu(111) and Ag(111) using polarization dependent X-ray absorptionExpand
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