Influence of growing up in the city or near an airport on the physiological stress of tree sparrow nestlings (Passer montanus)



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Redondo, Iradia and Muriel, Jaime A. and Castro Díaz, Cristina de and Aguirre de Miguel, José Ignacio and Gil, Diego and Pérez‑Rodríguez, Lorenzo (2021) Influence of growing up in the city or near an airport on the physiological stress of tree sparrow nestlings (Passer montanus). European Journal of Wildlife Research, 67 (68). pp. 1-13. ISSN 1612-4642, ESSN: 1439-0574

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Urbanization constitutes one of the major transformations of natural habitats, creating new areas characterized by multiple potential wildlife stressors. Birds that live in highly anthropized zones are confronted with physiological and behavioural challenges caused by these stressors. Here, we investigated if several health parameters difered between three subpopulations of tree sparrow nestlings subjected to diferent levels of anthropogenic pollution, and particularly noise pollution: a quiet rural area, a noisy rural area adjacent to an airport and a heavily urbanized area. We compared body condition, oxidative stress markers and baseline corticosterone levels, expecting urban nestlings to be in overall worse condition as compared to rural (rural and rural airport) birds. In addition, we expected nestlings exposed to aircraft noise to show intermediate stress levels. We found that rural-airport nestlings had the highest levels of antioxidant capacity of plasma and did not difer from rural counterparts in the rest of the parameters. By contrast, urban nestlings were in slightly worse body condition and had lower antioxidant capacity than rural and rural-airport individuals. Our results suggest that aircraft noise does not constitute a signifcant stressor for nestlings. In contrast, urban conditions constitute a more challenging situation, negatively impacting diferent physiological systems. Although nestlings seem able to bufer these challenges in the short-term, further research should explore the long-term potential consequences of early exposure to these conditions.

Item Type:Article
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CRUE-CSIC (Acuerdos Transformativos 2021)

Uncontrolled Keywords:Aircraft noise; Corticosterone; Oxidative stress; Tree sparrow; Urbanization
Subjects:Medical sciences > Biology > Birds
Medical sciences > Biology > Animal physiology
ID Code:71216
Deposited On:14 Mar 2022 16:10
Last Modified:01 Sep 2022 11:24

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