ArticleEcology and evolution2021
Web databases of feather photographs are useful tools for avian morphometry studies.
Article in Ecology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- New methods for estimating the total wing area of birds.Ecology and evolution · 2023Article
- Contrasting coloured ventral wings are a visual collision avoidance signal in birds.Proceedings. Biological sciences · 2022Article
- Web databases of feather photographs are useful tools for avian morphometry studies.Ecology and evolution · 2021Article
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Abstract
Wing area, wing loading, and aspect ratio are key variables for studies of avian comparative ecology, despite the complexity of measuring wing characteristics in living and museum specimens. The systematic databases of feather photographs available on the Internet may offer an alternative way of obtaining such morphometric data. Here, we evaluate whether measurements of scanned feathers from web photograph databases may offer reliable estimates of avian morphometry.Published data on wing area were obtained for 317 bird species and feather measurements from web photograph databases for 225 of them. A variable termed "lift generation area," a proxy for wing area, was calculated for each species on the basis of the mean length of the five distal secondary feathers and wingspan data from literature. The fit between this proposed variable and data extracted from the literature was examined by correlation, employing linear regression to explore the lack of fit among species."Lift generation area" proved to be highly informative as a proxy for wing area for the study species as a whole (
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