https://doi.org/10.4081/rio.2024.818
The diet of Gull-billed Tern Gelochelidon nilotica breeding in the Po Delta (NE Italy)
Submitted: 8 September 2024
Accepted: 4 December 2024
Published: 20 December 2024
Accepted: 4 December 2024
Abstract Views: 42
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All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
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The present study provides the first data on the diet of Gull-billed Terns (Gelochelidon nilotica) nesting in the Po Delta. Four hundred and forty-five prey items were found in pellets collected on a colony in a fish farm on June 11, 2018. Pellets contained mostly Invertebrata (403 items), of which the majority were Insecta (50.8%, mainly Orthoptera: 22.7%) and, to a lesser extent, Crustacea (22%, exclusively Red Swamp Crayfish Procambarus clarkii) and Mollusca (17.8%, mostly Gasteropoda: 16.2%), whereas Vertebrata accounted for only 9.4% (42 items, mostly Amphibia: 8.3%). Gull-billed Terns nesting in the Po Delta follow a diet with a predominance of Insecta, but with significant shares of Crustacea and Mollusca and, to a lesser extent, Amphibia, thus confirming the flexibility of the species in adapting to the prey availability of the foraging area.
Ataei F., Etezadifar F., Sharikabad V. N. & Barati A., 2014 - Nestling growth and nest success of Gull-billed Tern Gelochelidon nilotica (Aves: Sternidae) in western Iran. Italian Journal of Zoology, 81 : 425-430.
DOI: https://doi.org/10.1080/11250003.2014.932852
Bertolero A. & Rivaes S., 2015 - Synthèse des connaissances sur le régime alimentaire de la Sterne Hansel Gelochelidon nilotica en région méditerranéenne. Revue d'Écologie, 70: 83-90.
DOI: https://doi.org/10.3406/revec.2015.1771
Borodulina T. L., 1960 - Biology and economic importance of gulls and terns of southern USSR water bodies (1966 translation from Russian). Israel Program for Scientific Translations, Jerusalem.
BirdLife International, 2024 - Species factsheet: Common Gull-billed Tern Gelochelidon nilotica. Downloaded from https://datazone.birdlife.org/species/factsheet/common-gull-billed-tern-gelochelidon-nilotica on 07/09/2024.
Bogliani G., Fasola M., Canova L. & Saino N., 1990 - Food and foraging rhythm of a specialized Gull-billed Tern population Gelochelidon nilotica. Ethology Ecology & Evolution, 2: 175-181.
DOI: https://doi.org/10.1080/08927014.1990.9525484
Bogliani G., Fasola M., Canova L., Saino N., 1994 - Prey selection by parents and chicks of the Little Tern Sterna albifrons. Avocetta, 18: 9-11.
Britto V. O., Gil-Delgado Alberti J. A., Gosálvez R. U., López Iborra G. M. & Velasco Á., 2018 - Foraging habitat selection by gull–billed tern (Gelochelidon nilotica) in Central Spain (Castilla–La Mancha). Animal Biodiversity and Conservation, 41: 301-310.
DOI: https://doi.org/10.32800/abc.2018.41.0301
Cabo J. M. & Sanchez J. M., 1986 - Nouvelles données sur Gelochelidon nilotica au Maroc et sur son régime alimentaire. Alauda, 54: 207-212.
Correia A., 2001 - Seasonal and interspecific evaluation of predation by mammals and birds on the introduced red swamp crayfish Procambarus clarkii (Crustacea, Cambaridae) in a freshwater marsh (Portugal). Journal of Zoology, London, 255: 533-541.
DOI: https://doi.org/10.1017/S0952836901001625
Costa L. 1984 - Alimentacion de la Pagaza piconegra (Gelochelidon nilotica) en las marismas del Gualdalquivir, Donana. Acta Vertebrata, ii: 185-195.
Cramp S. (ed.), 1985 - Handbook of the Birds of Europe, the Middle East and North Africa. The Birds of the Western Palearctic. Vol. IV. Oxford University Press, Oxford.
Delany S. & Scott D., 2006 - Waterbird population estimates. Wetlands International, Wageningen, The Netherlands.
Del Hoyo J., Elliott A. & Sargatal J., 1996 - Handbook of the Birds of the World, vol. 3: Hoatzin to Auks. Lynx Edicions, Barcelona.
EIONET, 2021 - Reporting under Article 12 of the Birds Directive. Period 2013-2018. Last access: 17/08/2024. https://www.eionet.europa.eu
Fasola M. & Bogliani G., 1990 - Foraging ranges of an assemblage of Mediterranean seabirds. Colonial Waterbirds, 13: 72-74.
DOI: https://doi.org/10.2307/1521424
Fitzinger L.J., 1843 - Systema reptilium: fasciculus primus: Amblyglossae (Vol. 1). Braumüller & Seidel. Giordano J. & Battisti C., 2023 - The non native Red Swamp Crayfish Procambarus Clarkii as prey for waterbirds: a note from Torre Flavia wetland (Central Italy). Alula, 30: 194-199.
DOI: https://doi.org/10.5962/bhl.title.4694
Goodenough K. S., Patton R. T. & Lorda J., 2023 - Dietary plasticity mitigates impacts to reproduction for the Gull-billed Tern Gelochelidon nilotica during abnormally warm sea surface temperature events in California, USA. Waterbirds, 45: 450-460.
DOI: https://doi.org/10.1675/063.045.0409
Goutner V., 1991 - Food and feeding ecology of Gull-billed terns (Gelochelidon nilotica) in Greece. Revue d’Écologie, 46: 373-384.
DOI: https://doi.org/10.3406/revec.1991.2047
Grussu M., Scarton F., Verza E. & Valle R. G., 2019 - Long term trends and breeding parameters of Gull-billed Tern Gelochelidon nilotica in three Italian coastal sites. Rivista italiana di ornitologia, 89. https://doi.org/10.4081/rio.2019.438>
DOI: https://doi.org/10.4081/rio.2019.438
Hering J., Fischer S., Geiter O., Wobker J. & Siegel S., 2021 - Breeding colonies of Gull-billed Tern Gelochelidon nilotica and Little Tern Sternula albifrons on Lake Nasser, Egypt. Sandgrouse, 43: 194-215.
Møller A. P., 1982 - Coloniality and colony structure in Gull-billed Terns Gelochelidon nilotica. J. Ornithology, 123: 41-53.
DOI: https://doi.org/10.1007/BF01644148
Quinn J. S. & Wiggins D.A., 1990 - Differences in prey delivered to chicks by individual Gull-billed Terns. Colonial Waterbirds, 13: 67-69.
DOI: https://doi.org/10.2307/1521422
Sánchez J. M., Muñoz del Viejo A. & De la Cruz C., 1991. Segregación alimentaria entre adultos y pollos de Gelochelidon nilotica (Gm., 1789) en la laguna de Fuente de Piedra. Ardeola, 38: 21-27.
Sánchez J.M., Muñoz Del Viejo A., Corbacho C., Costillo E. & Fuentes C., 2004 - Status and trends of Gull-billed Tern Gelochelidon nilotica in Europe and Africa. Bird Conservation International, 14: 335–351.
DOI: https://doi.org/10.1017/S095927090400036X
Scarton F. & Valle R.G., 2020 - Drone assessment of habitat selection and breeding success of Gull-billed Tern Gelochelidon nilotica nesting on low-accessibility sites: a case study. Rivista Italiana di Ornitologia, 90: 69–76.
DOI: https://doi.org/10.4081/rio.2020.475
Scridel D., Serra L., Pirrello S., Basso M., Franzoi A., Cardillo A., Mengoni C., Ramazzotti F., Verza E., Imperio S. & Cecere J. G., 2023 - Sex-mediated changes in foraging behaviour according to breeding stage in a monomorphic seabird adapted to rural habitats. Animal Behaviour, 198, 181-193.
DOI: https://doi.org/10.1016/j.anbehav.2023.01.008
Simpson E. H., 1949 - Measurement of Diversity. Nature, 163.
DOI: https://doi.org/10.1038/163688a0
Valle R. G. & Verza E., 2020 - I laro-limicoli (Charadriiformes) nidificanti nel Delta del Po Veneto (RO) nel periodo 2015–2018. Bolletttino Museo Storia Naturale Venezia, 71: 123-126.
Valle R. G, & Scarton, F. 2021 - Monitoring the hatching success of gulls Laridae and terns Sternidae: A comparison of ground and drone methods. Acta Ornithologica, 56: 241-254.
DOI: https://doi.org/10.3161/00016454AO2021.56.2.010
Zubakin V. & Kostin Y., 1977 - The breeding birds of Chongarskiye Islands. Ornithology, 13: 49-55. [in Russian].
Wu F., Lei W., Lloyd H. & Zhang Z., 2020 - Predictors of Gull-billed tern (Gelochelidon nilotica) nest survival in artificial coastal saltpans, Bohai Bay, China. PeerJ, 8: e10054.
DOI: https://doi.org/10.7717/peerj.10054
How to Cite
Valle, R. G., & Fava, F. (2024). The diet of Gull-billed Tern <i>Gelochelidon nilotica</i> breeding in the Po Delta (NE Italy). Rivista Italiana Di Ornitologia. https://doi.org/10.4081/rio.2024.818
Copyright (c) 2024 Roberto G. Valle, Francesco Fava
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