Data from: Passive acoustic monitoring effectively detects Northern Spotted Owls and Barred Owls over a range of forest conditions

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关键词：

Northern Spotted Owls;Barred Owls;autonomous recording units;passive acoustic monitoring

DOI：

doi:10.5061/dryad.qnk98sfcd

摘要：

. To evaluate an alternative survey method, we used ARUs to detect calls of Northern Spotted Owls and Barred Owls (S. varia), a congener that has expanded

Data from: A melanin-based trait is more strongly related to body size in the tropics than in temperate regions in the globally distributed barn owl

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关键词：

Sex-specific selection;Tytonidae;honest signalling;sexual selection;Biogeography;melanism;colour polymorphism

DOI：

doi:10.5061/dryad.mc085g9

摘要：

in females than in males, in large- than small-spotted Tyto taxa and close to the equator than in temperate regions. This suggests that selection for spot size