Temporal patterns of bird mortality due to road traffic collisions in a Mediterranean region.

Capsule: There was significant variation on the incidence of road traffic mortality across bird species, due to seasonal and weather effects but also due to differences between years.

Aims: To assess patterns of mortality due to traffic collision for six common bird species over a period of nine years in relation to seasonality and weather.

Methods: Road mortality surveys were performed on four road sections from 2005 to 2013 in southern Portugal. The analysis controlled for survey frequency, and carcass persistence and detectability.

Results: Overall, bird mortality decreased over time and was generally higher during spring and summer months. The lack of strong relationships between the weather variables and the observed mortality patterns suggests the existence of additional factors important in explaining the observed trends.

Conclusions: Our study provides evidence that bird mortality due to collision with vehicles may change between years and was highest during the breeding season. This could have population consequences, and highlights the need to further address large temporal scales in roadkill research.

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Pinto P. Lourenço R. Mira A. y Santos S. Temporal patterns of bird mortality due to road traffic collisions in a Mediterranean region. Taylor and Francis Online, 2020. https://doi.org/10.1080/00063657.2020.1779652

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Retrieved: 08 Nov 2025 05:42:59
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Resource type Text
Date of creation 2025-05-23
Date of last revision 2025-05-23
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Metadata identifier 5097d6cc-75e9-5c2d-bc5a-ba92241da821
Metadata language Spanish
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ISO 19115 topic category biota
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Name of the dataset creator Pinto, P., Lourenço, R., Mira, A. y Santos, S.
Name of the dataset editor Taylor and Francis Online
Other identifier DOI: 10.1080/00063657.2020.1779652
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