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| Pàgina inicial > Articles > Articles publicats > Concentrations and distribution of 210Pb in bird feathers and its potential for tracing age and flight times |
(Centre de Recerca Ecològica i d'Aplicacions Forestals) (Universitat de Barcelona. Departament de Geografia) (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) (Museu de Ciències Naturals de Barcelona. Departament de Vertebrats) (Universitat Autònoma de Barcelona. Departament de Física) (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
| Data: | 2024 |
| Resum: | Bird feathers have been widely used as environmental indicators, providing key information on environmental pollution. However, there is little available information on the adsorption of natural radioactivity in bird feathers and consequently, its impact on the field of movement ecology is not yet known. This study investigates the concentration and distribution of 210Pb in wing- and tail-feathers of different bird species with contrasting migratory strategies, and discusses its potential use as a tracer of age and flight times. Adsorption of 210Pb in bird feathers is directly related to the interaction of feathers with air, therefore it is hypothesised that the presence of this radionuclide is proportional to the length of flight times, and is asymmetrically distributed in flight feathers. Consequently, a significant difference is expected between 210Pb concentrations in feathers of long-distance migrants when compared to sedentary species. For this purpose, a total of 45 samples from eight individuals of three bird species with distinct migratory strategies were analysed: a highly aerial and long-distance migratory species (Common swift Apus apus), and two largely sedentary species widely distributed across Europe (Great tit Parus major and Tawny owl Strix aluco). Novel findings show that the content of 210Pb in bird feathers of adult migratory birds is much higher than in sedentary birds or juvenile individuals, demonstrating this naturally occurring radionuclide can provide information about the contact time between feathers and air. Additionally, 210Pb adsorption was not evenly distributed in bird feathers. The findings provide a new method to trace age and flight time of birds using 210Pb in feathers, complementing conventional techniques in bird migration studies. |
| Ajuts: | Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/BP-00134 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00859 Ministerio de Ciencia, Innovación y Universidades PRE2020-092343 Agencia Estatal de Investigación PID2020-114907 GB-C21 Agència de Gestió d'Ajuts Universitaris i de Recerca 2019/BP-00241 Ministerio de Ciencia, Innovación y Universidades CEX2019-000940-M Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00640 |
| Nota: | Altres ajuts: acords transformatius de la UAB |
| Nota: | Unidad de excelencia María de Maeztu CEX2019-000940-M |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.  |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Matèria: | Environmental pollution ; Natural radionuclides ; Lead-210 ; Moult ; Migratory strategy ; Primary feathers |
| Publicat a: | Journal of Environmental Radioactivity, Vol. 274 (April 2024) , art. 107397, ISSN 0265-931X |
