Colorimetric Variation and Color Pattern

James L. Patton, David G. Huckaby and Sergio Ticul Álvarez-Castañeda

in The Evolutionary History and a Systematic Revision of Woodrats of the Neotoma lepida Group

Published by University of California Press

Published in print April 2008 | ISBN: 9780520098664
Published online March 2012 | e-ISBN: 9780520942592 | DOI:
Colorimetric Variation and Color Pattern

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Principal components analysis was accomplished to compare the multivariate space that includes all 3,379 specimens measured with a set of standard Munsell colors to choose a priori on the woodrat study skins. Distinct analyses were performed for each topographic region of the study skin, using the three trichromatic X, Y, and Z variables. In each case, an ellipse that encompasses all study skin measurements is contained within a larger envelope based on the Munrell colors. The PC scores for both lateral and mid-chest color of the woodrat samples are more broadly distributed but still contained within a broader spectrum of color defined by the Munsell colors, ranging largely from 7.5 YR/8/6 (reddish yellow) and 7.5YR/6/0 (gray) to 10YR/2/2 (very dark brown) and 2.5YR/2.5/0 (black). Lateral color scores are more centrally distributed within the envelope defined by the Munsell colors than are those for the other three topographic regions of the study skin measured.

Keywords: Munsell; trichromatic; study skins; spectrum; topographic region

Chapter.  2556 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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