Response of vertebrate scavengers to power line and road rights-of-way and its implications for bird fatality estimates.

Linear infrastructures, such as power lines and roads, are an important source of bird mortality. However, little is known on the potential effect of these infrastructures on local scavenger guilds, their foraging activity and the resulting bird carcass removal patterns. This is an important source of bias in studies aiming to quantify bird fatalities due to linear infrastructures. We used camera-traps to record scavenger identity and persistence patterns of bird carcasses placed close to linear infrastructure and nearby controls in two Mediterranean agricultural regions. We found that linear infrastructure influence on scavenger identity varied depending on the region. Contrary to expectations, linear infrastructure presence had either none or a positive effect on carcass persistence, meaning that carcasses placed within power line or road rights-of-way were not removed faster than the ones placed in controls. We conclude that linear infrastructure effect on vertebrate scavenging patterns is likely to be region-specific, and that reliable correction factors for carcass removal-bias in bird fatality estimates require site-specific experiments to characterize local scavenging processes.

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Bernardino J. Bispo R. Martins R.C. Santos S. y Moreira F. Response of vertebrate scavengers to power line and road rights-of-way and its implications for bird fatality estimates. Nature, 2020. https://doi.org/10.1038/s41598-020-72059-7

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Tipo de recurso Texto
Fecha de creación 02-12-2024
Fecha de última modificación 22-01-2025
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Identificador de los metadatos 49786c29-8785-5a24-aa66-04b086d40087
Idioma de los metadatos Español
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Categoría temática ISO 19115 biota
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Nombre del autor Bernardino, J., Bispo, R., Martins, R.C., Santos, S. y Moreira, F.
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Identificador alternativo DOI: 10.1038/s41598-020-72059-7
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