背景颜色对极度濒危的奥库湖爪蛙应激相关行为的影响

Arabella E. Graves, Jemma E. Dias, C. Michaels
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引用次数: 0

摘要

迁地两栖动物种群是全球两栖动物保护战略的重要组成部分,而优化的饲养对迁地保护的成功至关重要。动物行为可以用来为圈养动物的福利提供信息,并改善畜牧业实践。然而,与哺乳动物和鸟类相比,它在两栖动物身上的应用很少。本研究的目的是探讨不同颜色的水箱背景对极度濒危的奥库湖爪蛙(Xenopus longipes)圈养行为的影响。这项研究是通过研究5组24只圈养青蛙的行为来进行的,这些青蛙使用了假定压力的既定行为指标。在文献中建立的与急性应激有关的休息和游泳行为,在三种背景色和无背景的标准饲养控制条件下被记录下来。每组蛙暴露于每种背景下5天,记录每天11:00至13:00的行为频率。使用广义线性混合模型,我们确定了背景改变后的背景天数以及两个变量之间的相互作用对游泳和休息行为的显著影响。本研究的结果表明,压力对改变背景的最初反应是由背景的颜色调节的,随后压力反应消失,这样在背景改变五天后,行为与基线相似,并且在处理之间无法区分。总体而言,本研究表明,绿色、灰色、黑色或透明背景对青蛙的应激行为没有直接影响,但绿色和灰色背景对背景变化的应激反应最小。因此,这些颜色可能被推荐用于减少干扰带来的压力的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of Background Color on Stress-Linked Behavior in the Critically Endangered Lake Oku Clawed Frog (Xenopus longipes)
Ex situ amphibian populations are a key component of global amphibian conservation strategy, and optimal husbandry is vital to ex situ conservation success. Animal behavior can be used to inform captive welfare and improve husbandry practices. However, it has been little used for amphibians compared with mammals and birds. The goal of this study was to explore the effect of different colored tank backgrounds on the behavior of the critically endangered Lake Oku clawed frog (Xenopus longipes) in captivity. This was conducted by studying the behavior of a group of 24 captive frogs in 5 groups using established behavioral indicators of presumed stress. Resting and swimming behaviors, established in the literature as linked to acute stress, were recorded under conditions of three background colors and a standard husbandry control of no background. Frog groups were exposed to each background for five days with behavioral frequencies recorded daily from 11:00 until 13:00. Using generalized linear mixed models, we identified a significant effect of background days after the background was changed and the interaction between the two variables on both swimming and resting behavior. The results of this study suggest an initial response of stress to altering the background, modulated by the color of the background, followed by the extinction of the stress response such that by five days after the background change, behaviors were similar to the baseline and indistinguishable between treatments. Overall, this study suggests that frog stress behavior was not differentially directly affected by green, grey, black, or transparent backgrounds but that green and grey backgrounds were associated with the smallest stress response to background change. These colors may therefore be recommended to reduce the impact of stress from disturbance.
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