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Article Dans Une Revue Journal of Avian Biology Année : 2017

Traffic noise decreases nestlings’ metabolic rates in an urban exploiter

Résumé

High levels of anthropogenic noise produced in urban areas are known to negatively aff ect wildlife. Although most research has been focused on the disturbances of communication systems, chronic noise exposure can also lead to physiological and behavioural changes that have strong consequences for fi tness. For instance, behavioural changes mediated by anthropogenic noise (e.g. quality of parental care) may alter development and could infl uence nestling phenotype. We tested if nestling metabolism was infl uence by traffi c noise in an urban exploiter, the house sparrow Passer domesticus . We experimentally exposed breeding house sparrows from a rural area to a playback of traffi c noise and we examined the impacts of this experimental procedure on metabolic rates and morphology of nestlings. We did not fi nd an eff ect of traffi c noise on the morphology of nestlings. Surprisingly, we found that disturbed nestlings had overall lower metabolic rates and mass-adjusted metabolic rates than undisturbed birds. Our results suggest a specifi c eff ect of noise exposure per se, rather than an indirect eff ect of anthropogenic noise through the quality of parental care. Both the proximate mechanisms and the ultimate consequences of such metabolic changes on nestlings remain unknown and deserve future experimental studies.

Dates et versions

hal-01503581 , version 1 (07-04-2017)

Identifiants

Citer

François Brischoux, Alizée Meillere, Andréaz Dupoué, Olivier Lourdais, Frédéric Angelier. Traffic noise decreases nestlings’ metabolic rates in an urban exploiter. Journal of Avian Biology, 2017, 48, pp.1-5. ⟨10.1111/jav.01139⟩. ⟨hal-01503581⟩
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