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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2021 Vol.40 No.1

Application of Gabor Edge Disruption Ratio Method in Animal Disruptive Coloration
Author of the article:XIAO Fanrong, BU Rongping, HUANG Tingting, SHI Haitao*
Author's Workplace:Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
Key Words:camouflage; microhabitat; Gabor filter; edge detection
Abstract:Disruptive coloration is a camouflage strategy of prey with high contrast markings that form false body edges and boundaries, and thereby prevents the detection or recognition of predator. Currently, the ratio of false edges to coherent edges of an animals’ outline is the best index of disruptive coloration. Taking the Indochinese box turtle (Cuora galbinifrons) as an example, this study expounds how to quantify the disruptive coloration in vertebrates by using the most advanced Gabor edge disruption ratio (GabRat) method. We also compare the GabRat values of turtles in different microhabitat substrates. The results indicated that the color of the carapace of C. galbinifrons plays an important role in disruptive coloration. Moreover, the GabRat values in turtles preferred deciduous substrates were significantly higher than those in rare habitats including bare grounds and stony substrates. Our study confirms the biological plausibility of GabRat method in quantifying disruptive coloration in vertebrates, and is helpful to understand the definition and mechanism of disruptive coloration.
2021,40(1): 34-38 收稿日期:2020-06-09
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