caa a22 4500 46317609X CHVBK 20180406164826.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10336-007-0164-y doi (NATIONALLICENCE)springer-10.1007/s10336-007-0164-y Aspects of breeding ecology of the eastern olivaceous warbler ( Hippolais pallida ) [Elektronische Daten] [Anton Antonov, Bård Stokke, Arne Moksnes, Eivin Røskaft] The breeding ecology of eastern olivaceous warblers Hippolais pallida is poorly known. In this study, we provide data on nest site selection and breeding parameters of the species in a population in northwestern Bulgaria, the only one known to be regularly and heavily parasitized by the common cuckoo Cuculus canorus (hereafter cuckoo). Eastern olivaceous warblers only bred within human settlements of the study area, avoiding seemingly suitable habitat outside them. Nests were built in a wide range of plant taxa but ailanthuses Ailanthus altissima and mulberries Morus spp. were most frequently used (21%). After taking into account the availability of vegetation, there was an apparent preference for several plant taxa but not for mulberries. Mean nest height was 1.65±0.98 (0.53-7.60)m, n=217, and it varied significantly among different types of nesting substrate. Laying date and clutch size of first breeding attempts averaged 10 June±0.98days, n=101 and 3.9±0.07 (2-5) eggs, n=72, respectively. Hatching success, fledging success, and breeding success were 42.5, 86.4, and 36.7%, respectively. The main sources of nest mortality were predation and cuckoo parasitism, with no significant difference in the proportion of nests lost to each. Cuckoo parasitism seemed responsible for the relatively low hatching success in this population. Dt. Ornithologen-Gesellschaft e.V., 2007 Eastern olivaceous warbler nationallicence Breeding biology nationallicence Cuckoo nationallicence Hippolais pallida nationallicence Cuculus canorus nationallicence Antonov Anton Department of Biology, Norwegian University of Science and Technology (NTNU), Realfagbygget, 7491, Trondheim, Norway aut Stokke Bård Department of Biology, Norwegian University of Science and Technology (NTNU), Realfagbygget, 7491, Trondheim, Norway aut Moksnes Arne Department of Biology, Norwegian University of Science and Technology (NTNU), Realfagbygget, 7491, Trondheim, Norway aut Røskaft Eivin Department of Biology, Norwegian University of Science and Technology (NTNU), Realfagbygget, 7491, Trondheim, Norway aut Journal of Ornithology Springer-Verlag 148/4(2007-10-01), 443-451 0021-8375 148:4<443 2007 148 10336 https://doi.org/10.1007/s10336-007-0164-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-007-0164-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Antonov Anton Department of Biology, Norwegian University of Science and Technology (NTNU), Realfagbygget, 7491, Trondheim, Norway aut NATIONALLICENCE 700 1- Stokke Bård Department of Biology, Norwegian University of Science and Technology (NTNU), Realfagbygget, 7491, Trondheim, Norway aut NATIONALLICENCE 700 1- Moksnes Arne Department of Biology, Norwegian University of Science and Technology (NTNU), Realfagbygget, 7491, Trondheim, Norway aut NATIONALLICENCE 700 1- Røskaft Eivin Department of Biology, Norwegian University of Science and Technology (NTNU), Realfagbygget, 7491, Trondheim, Norway aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148/4(2007-10-01), 443-451 0021-8375 148:4<443 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer