Online Program

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Friday, October 4
Fri, Oct 4, 2:30 PM - 3:45 PM
Evergreen I
Speed Session 4

Spectral Measure of Color Variation of Black - Orange - Black (BOB) Pattern in Hymenoptera (Scelionidae): A Statistical Approach (306438)

*Marcela Alfaro Córdoba, Universidad de Costa Rica 
Marcela Hernández Jiménez, Universidad de Costa Rica 
Rebeca Mora, Universidad de Costa Rica 

Keywords: functional data analysis, color measurement

Reflectance microspectrophotometric measurements of 8 Scelionidae genera were obtained and analyzed to establish differences between color in each species and genera. This microspectrophotometric study of color patterns in scelionids is the first report in this group that quantitatively describes their dorsal Black Orange Black pattern, and combines the use of Functional Data Analysis (FDA), statistical analysis of Euclidean distances for color components, and the use of simple univariate measures of color reflectance, to best describe and test the color reflectance differences, measured using color reflectance spectrum. Results show differences between black and orange colors in each of the species and genera, using all methods. The distance between curves of each color component, not only confirmed the FDA results, but gave more details on the multiple comparisons highlighting that the differences found using both FDA and a multivariate distance was due to the green and red color components, but not to the blue one.