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RECERCAT author Mazzoni, Daniele author Pascual, Jordi author Montalvo, Tomás author González-Solís, J. author Senar, Juan Carlos 2022-11-09T11:21:21Z2024-07-29T07:31:05Z 2023-09-05T02:45:06Z2024-07-29T07:31:05Z 2022-09-05 http://hdl.handle.net/2072/527583 https://doi.org/10.1080/00063657.2022.2113856 Capsule: Previous observations in Barcelona and other cities showed that approximately 40% of the food ingested by adult Monk Parakeets Myiopsitta monachus is of anthropogenic origin. Here we show that this type of food source is also used for feeding nestlings. Aims: To quantify the proportion of anthropogenic food within the diet of nestling Monk Parakeets, a non-native species in Barcelona. Methods We analysed stable isotopes of 13C and 15N in feathers of Monk Parakeet nestlings collected in the Barcelona city area. We also sampled potential food sources ingested by Monk Parakeets to reconstruct the nestling diet using Bayesian mixing models with MixSIAR. Results: Almost 30% of the nestlings’ diet was composed of anthropogenic food. Conclusions: Since food availability is a major factor regulating population growth, we propose educating the general public to reduce the food supply for the species and ultimately limit its population growth. eng L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by-nc-nd/4.0/ The diet of Monk Parakeet nestlings (Myiopsitta monachus) in an urban area: a study using stable isotopes info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion URL https://recercat.cat/bitstream/2072/527583/1/Mazzoni_2021.pdf File MD5 47da4a673509a2cf87b63601c0bdf1db 425492 application/pdf Mazzoni_2021.pdf URL https://recercat.cat/bitstream/2072/527583/5/Mazzoni_2021.pdf.txt File MD5 2bd1b4c088852c6f43728e0d7cce5c3f 32197 text/plain Mazzoni_2021.pdf.txt