Abstract
We are grateful to G. Assandri, D. Beneyto, M. Delandes, P. Lucio, M. Marin, C. Mompo, M. Morganti, R. Oliver, R. Piculo, E. Pons, R. Sanchez-Serrano and D. Vidal for their help with the fieldwork, and to S. Ano, N. Ibanez and J. Villarroya for their help in counting and classifying invertebrates. We would like to thank the authorities of the Marjal de Pego-Oliva Natural Park and the Servei de Conservacio de la Biodiversitat de la Generalitat Valenciana for providing the facilities to work in protected areas, and for providing the relevant permits. The present work has been partly financed by Projects CGL2005-02041 and CGL2010-21933/CO2-02 of the Spanish Ministry of Science and Innovation. FC was supported by an Atraent talent grant from the University of Valencia. Juan A. Amat and two anonymous reviewers contributed to improve an earlier version of the manuscript.
Highlights
This research deals with two insectivorous reedbed-nesting songbirds: the Savi's Warbler Locustella luscinioides and the Great Reed Warbler Acrocephalus arundinaceus, breeding at the Marjal de Pego-Oliva (Valencia-Alicante, Spain)
The Great Reed Warbler Acrocephalus arundinaceus and the Savi’s Warbler Locustella luscinioides are both insectivorous songbirds which typically breed in reedbeds (Kennerley & Pearson 2010)
The breeding ecology of these species has been the focus of several studies and some of these have described their diet during the breeding season, which included insects, spiders, small molluscs and, in the case of the Great Reed Warbler, small vertebrates (Mildenberger 1958, Cardenas et al 1983, Pikulski 1986, Dyrcz & Flinks 2000, Dyrcz 2016, Pearson 2016)
Summary
This research deals with two insectivorous reedbed-nesting songbirds: the Savi's Warbler Locustella luscinioides and the Great Reed Warbler Acrocephalus arundinaceus, breeding at the Marjal de Pego-Oliva (Valencia-Alicante, Spain). The Great Reed Warbler Acrocephalus arundinaceus and the Savi’s Warbler Locustella luscinioides are both insectivorous songbirds which typically breed in reedbeds (Kennerley & Pearson 2010). Both species are distributed across a wide range, including Europe, West and Central Asia and NW Africa, and both winter in subSaharan Africa (Kennerley & Pearson 2010). Our aims were to describe the diet composition and the prey selection of the Great Reed Warbler and the Savi’s Warbler at a sympatric breeding site in Spain, and to assess the occurrence of dietary differences between them
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