Major Roads Have a Negative Impact on the Tawny OwlStrix alucoand the Little OwlAthene noctuaPopulations

作者: Clara C Silva , Rui Lourenço , Sérgio Godinho , Edgar Gomes , Helena Sabino-Marques

DOI: 10.3161/000164512X653917

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摘要: Abstract. The increasing road networks threaten ecosystems by direct effects such as increased mortality due to collision with vehicles and various indirect leading avoidance. We censused Tawny Owls Strix aluco Little Athene noctua in 2005, 2007 2009 a rural landscape Southern Portugal order study the of roads habitat characteristics on Owl density presence. presence both owl species 70 census locations was coherent among years. Our results showed that near major lower, negative extending possibly up 2 km. probability also negatively affected proximity roads. were significant even considering preferences spatial autocorrelation, which had most marked effect or owls. reduced occupancy habitats ...

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