Seasonal variation of red carotenoid pigments in plasma of wild Crossbill males Loxia curvirostra

Rank Transformations as a Bridge between Parametric and Nonparametric Statistics

W. J. Conover, Ronald L. Iman · The American Statistician · 1981 · 3.6K citations

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Plumage coloration is a sexually selected indicator of male quality

Geoffrey E. Hill · Nature · 1991 · 853 citations · Full text

Life Sciences, Ecology, Zoology +12

Female house finches prefer colourful males: sexual selection for a condition-dependent trait

Geoffrey E. Hill · Animal Behaviour · 1990 · 486 citations

Life Sciences, Biology, Zoology +17

Analysis of Covariance Using the Rank Transformation

W. J. Conover, Ronald L. Iman · Biometrics · 1982 · 439 citations

Natural Sciences, Biostatistics, Econometrics +13

Plumage colour signals nutritional condition in the house finch

Proceedings of the Royal Society B Biological Sciences · 1994 · 387 citations

Life Sciences, Animal Sciences, Zoology +10