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DOI | 10.1073/pnas.1919417117 |
Imperfect transparency and camouflage in glass frogs | |
Barnett, James B.1,2; Michalis, Constantine2; Anderson, Hannah M.1; McEwen, Brendan L.1; Yeager, Justin3; Pruitt, Jonathan N.1; Scott-Samuel, Nicholas E.4; Cuthill, Innes C.2 | |
2020-05-26 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2020 |
卷号 | 117期号:23页码:12885-12890 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; England; Ecuador |
英文摘要 | Camouflage patterns prevent detection and/or recognition by matching the background, disrupting edges, or mimicking partic-ular background features. In variable habitats, however, a single pattern cannot match all available sites all of the time, and efficacy may therefore be reduced. Active color change provides an alterna-tive where coloration can be altered to match local conditions, but again efficacy may be limited by the speed of change and range of patterns available. Transparency, on the other hand, creates high-fidelity camouflage that changes instantaneously to match any sub-strate but is potentially compromised in terrestrial environments where image distortion may be more obvious than in water. Glass frogs are one example of terrestrial transparency and are well known for their transparent ventral skin through which their bones, intes-tines, and beating hearts can be seen. However, sparse dorsal pig-mentation means that these frogs are better described as translucent. To investigate whether this imperfect transparency acts as camou-flage, we used in situ behavioral trials, visual modeling, and labora-tory psychophysics. We found that the perceived luminance of the frogs changed depending on the immediate background, lowering detectability and increasing survival when compared to opaque frogs. Moreover, this change was greatest for the legs, which surround the body at rest and create a diffuse transition from background to frog luminance rather than a sharp, highly salient edge. This passive change in luminance, without significant modification of hue, suggests a cam-ouflage strategy, "edge diffusion," distinct from both transparency and active color change. |
英文关键词 | camouflage color change edge diffusion glass frog transparency |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000545949100024 |
WOS关键词 | DISRUPTIVE COLORATION ; PREDATION ; CRYPSIS ; VISION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/271720 |
专题 | 资源环境科学 |
作者单位 | 1.McMaster Univ, Dept Psychol Neurosci & Behav, Hamilton, ON L8S 4K1, Canada; 2.Univ Bristol, Sch Biol Sci, Bristol BS8 1TQ, Avon, England; 3.Univ Las Amer, Biodiversidad Medio Ambiente & Salud, Quito 170125, Ecuador; 4.Univ Bristol, Sch Psychol Sci, Bristol BS8 1TU, Avon, England |
推荐引用方式 GB/T 7714 | Barnett, James B.,Michalis, Constantine,Anderson, Hannah M.,et al. Imperfect transparency and camouflage in glass frogs[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(23):12885-12890. |
APA | Barnett, James B..,Michalis, Constantine.,Anderson, Hannah M..,McEwen, Brendan L..,Yeager, Justin.,...&Cuthill, Innes C..(2020).Imperfect transparency and camouflage in glass frogs.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(23),12885-12890. |
MLA | Barnett, James B.,et al."Imperfect transparency and camouflage in glass frogs".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.23(2020):12885-12890. |
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