摘要
Variations in the ecological roles of sea turtle species may lead to differentiations in ocular design and visual sensitivity to the colour spectrum. Behavioural colour preference studies in air and in water on hatchling and post-hatchling green turtles found evidence of a blue hue attractiveness when given a choice between blue, red, and yellow. This paper assessed and compared the colour preferences to singular colours via the behavioural responses of eleven hawksbill turtles and twelve green turtles at 15 months of age and at 22 months of age. Turtles were presented with one coloured water balloon per day (purple (400–450 nm), dark blue (450–490 nm), cyan (490–520 nm), green (520–560 nm), yellow (560–590 nm), orange (590–635 nm), and red (635–700 nm)). Time to contact balloons with beak and behaviours exhibited by turtles were recorded. Hawksbill turtles had the greatest level of interactions across both phases to shorter wavelengths with hue preference being between 450 and 490 nm. Green turtles consistently had the greatest level of interaction to longer wavelengths with a yellow (560–590 nm) hue preference. The results of this study support behavioural differences between two co-occurring turtle species that may reflect an adaptive preference for colour wavelengths associated with the optimal foraging niche for each.
摘要译文
海龟物种生态作用的变化可能会导致眼部设计和视觉敏感性的分化。在孵化和孵化后的绿海龟中，空气和水中的行为颜色偏好研究发现了蓝色，红色和黄色之间选择时具有蓝色色调吸引力的证据。本文通过11个月大时和22个月大时评估并比较了11只Hawksbill Turtles和十二只绿海龟的颜色偏好与奇异颜色。每天都有一个彩色水气球（紫色（400–450 nm），深蓝色（450–490 nm），青色（490–520 nm），绿色（520-560 nm），黄色（560-590 nm），橙色（560–590 nm），橙色（590-635 nm）和红色（635 nm）和红色（635 nm）。记录了时间接触气球，并记录了海龟表现出的行为。霍克斯比尔海龟在两个阶段之间的相互作用水平最高，而色调偏好在450至490 nm之间。绿海龟始终对具有黄色（560-590 nm）色调的更长波长具有最大的相互作用。这项研究的结果支持了两种同时发生的乌龟物种之间的行为差异，这可能反映了与每个颜色波长的适应性偏好，这与每个乌龟的颜色波长相关。
Jordan Drake (https://orcid.org/0009-0005-8595-0893) [1];Mohammed F. Khayat (https://orcid.org/0009-0007-6030-5155) [2];Rhondda Jones (https://orcid.org/0000-0002-1031-2863) [3];Ellen Ariel (https://orcid.org/0000-0002-3171-1679) [4];. Colour Preference of Post Hatchling Hawksbill (Eretmochelys imbricata) and Green (Chelonia mydas) Sea Turtles in Captivity[J]. Animals, 2025,15(5): 628