人类世的适应:行为选择和颜色变化如何使变色龙对虾在非本地海藻上伪装。

IF 3.5 1区 环境科学与生态学 Q1 ECOLOGY
Rafael C. Duarte, Beks Ryan, Gustavo M. Dias, Martin Stevens
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引用次数: 0

摘要

动物将颜色变化和行为选择结合起来,以加强隐蔽性并适应栖息地在时间和空间上的变化。变色龙对虾(Hippolyte varians)在浅滩水池中对不同的本地海藻表现出显著的颜色变化和有效的伪装。个体通过选择与颜色相匹配的海藻并随时间改变颜色来优化隐蔽性。在某些地方,对虾的原生栖息地现已被不同颜色和结构的非原生海藻取代,因此了解底质选择和颜色变化是否有利于对虾占据这些海藻,并使其能够在新的背景下伪装就显得尤为重要。利用图像分析和鱼类捕食者视觉建模,我们评估了变色龙对虾在英国西南部占据非本地海藻褐线草(Sargassum muticum)和粉红鱼叉草(Asparagopsis armata)时的颜色变化和伪装。对虾表现出的表型多样性和伪装能力随非原生海藻种类的不同而变化,在粉红鱼叉草上,对虾的颜色变化小,伪装能力强;而在褐丝草上,对虾的颜色多样性高,隐蔽能力差。当替代性原生底质提供不匹配的颜色时,对虾会选择非原生海藻,但在颜色匹配的原生海藻和非原生海藻之间,对虾没有表现出任何偏好。一旦进入非本地栖息地,对虾会在几天内改变外观,使其与背景相匹配,有时比在颜色对比鲜明的本地海藻上改变外观的速度更快。虽然人类活动通过增加非本地海藻的数量大大改变了海洋景观的颜色,但这些变化对变色龙对虾等变色物种的影响似乎并不严重,这将取决于新基质的颜色与原始本地背景之间的相似性,以及动物如何利用行为和生理机能与新栖息地相匹配。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Adaptation in the Anthropocene: How behavioural choice and colour change enables chameleon prawns to camouflage on non-native seaweeds

Adaptation in the Anthropocene: How behavioural choice and colour change enables chameleon prawns to camouflage on non-native seaweeds

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来源期刊
Journal of Animal Ecology
Journal of Animal Ecology 环境科学-动物学
CiteScore
9.10
自引率
4.20%
发文量
188
审稿时长
3 months
期刊介绍: Journal of Animal Ecology publishes the best original research on all aspects of animal ecology, ranging from the molecular to the ecosystem level. These may be field, laboratory and theoretical studies utilising terrestrial, freshwater or marine systems.
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