Title: Proteinvariation und Taxonomie körnerfressender Singvögel
Abstract: Protein variations and taxonomy of seed-eating oscines The variability of 21 proteins coded by 24 geneloci has been analysed among 99 oscines, 93 of them seed-eaters, out of a total of 40 species. Based on the ascertained allel-frequencies genetic distances were calculated according to ROGERS (1972) and NEI (1972). Dendrograms have been constructed with the “unweighted pair-group arithmetic average clustering-method” (UPGMA) (SOKAL and SNEATH 1963). A new procedure is proposed in order to verify the reliability of these results. Published argumentations on the taxonomy of seed-eating oscines are collected and evaluated all together. With due regard to all results the following conclusions are drawn: 1. Ploceidae and Viduidae are closely related sistergroups. 2. The Estrildidae stand opposite to Ploceidae, Viduidae, Sporopipidae and Passeridae. 3. Together with Motacillidae and Prunellidae the above mentioned groups probably form the Passerioidea. 4. Carduelidae and Fringillidae are sister-groups as well as Emberizidae and Thraupidae. 5. These four families and other not analysed ones form the Fringil-lioidea and stand opposite to the Passerioidea.