Abstract
Encyclopedia of Life (EOL) is a resource for community-driven biodiversity data, focusing on species information and images. Research into blue flowers to compare color ('blueness') at different elevations revealed that data content providers describe flowers as blue for any color hue in the range from blue to magenta. We propose methods for standardizing color values and color searching within EOL by means of an expanded color vocabulary and improved access to image metadata, in order to improve the research capacity of this valuable resource.
Highlights
The stated mission of Encyclopedia of Life (Parr et al 2014b) is "To increase awareness and understanding of living nature through an Encyclopedia of Life that gathers, generates, Wright C, Seltmann K and shares knowledge in an open, freely accessible and trusted digital resource"
Searching for "blue flowers" from the Encyclopedia of Life (EOL) search interface resulted in 1165 images representing unique specimens, and 182 unique species. 33 species recovered have a common name that contains the word "blue"
Based on the analysis described above, records returned using the color name "blue" presented a spectrum of flower colors spanning all angles of the color wheel (Fig. 6)
Summary
The stated mission of Encyclopedia of Life (Parr et al 2014b) is "To increase awareness and understanding of living nature through an Encyclopedia of Life that gathers, generates, Wright C, Seltmann K and shares knowledge in an open, freely accessible and trusted digital resource" (http:// EOL.org/about). In addition to data uploaded directly to EOL by Curators (http://eol.org/ info/curators), content is aggregated from a large number of websites known as Content Partners (http://eol.org/content_partners). These partners include expert-driven scientific databases and museum collections, as well as collectively edited websites such as Wikipedia. Several prior studies noted the prevalence of blue flowers in high elevation areas (Weevers 1952, Brunet 2009). These studies focus on specific geographic areas and are not worldwide or continental in scope. We compared the color representation of each retrieved image using three different color models including the Red, Green and Blue (RBG; Adobe Systems Inc. 2012); Hue, Saturation, and Value (HSV; Smith 1978); and Phenotypic Quality Ontology (PATO; Gkoutos et al 2005) class representation
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