Evolutionary fine-tuning of background-matching camouflage among geographical populations in the sandy beach tiger beetle
Evolutionary fine-tuning of background-matching camouflage among geographical populations in the sandy beach tiger beetle
复制标题
沙滩虎甲虫地理种群背景匹配伪装的进化微调
DOI:
10.1098/rspb.2020.2315
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
T.
中科院分区:
文献类型:
--
作者:
Yamamoto;N. and Sota;T.
Background-matching camouflage is a widespread adaptation in animals; however, few studies have thoroughly examined its evolutionary process and consequences. The tiger beetleChaetodera laetescriptaexhibits pronounced variation in elytral colour pattern among sandy habitats of different colour in the Japanese Archipelago. In this study, we performed digital image analysis with avian vision modelling to demonstrate that elytral luminance, which is attributed to proportions of elytral colour components, is fine-tuned to match local backgrounds. Field predation experiments with model beetles showed that better luminance matching resulted in a lower attack rate and corresponding lower mortality. Using restriction site-associated DNA (RAD) sequence data, we analysed the dispersal and evolution of colour pattern across geographical locations. We found that sand colour matching occurred irrespective of genetic and geographical distances between populations, suggesting that locally adapted colour patterns evolved after the colonization of these habitats. Given that beetle elytral colour patterns presumably have a quantitative genetic basis, our findings demonstrate that fine-tuning of background-matching camouflage to local habitat conditions can be attained through selection by visual predators, as predicted by the earliest proponent of natural selection.
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DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
Muraoka H.;Trisurat Y.;Pungga R.S.;Noriyuki S
通讯作者:
Noriyuki S
影响因子:
4.6
作者:
Price, Natasha;Green, Samuel;Stevens, Martin
通讯作者:
Stevens, Martin
影响因子:
3.3
作者:
M. Stevens;A. Broderick;B. Godley;Alice E. Lown;J. Troscianko;N. Weber;S. Weber
通讯作者:
S. Weber
DOI:
--
发表时间:
1987
期刊:
Physiological Zoology
影响因子:
--
作者:
T. Schultz;N. F. Hadley
通讯作者:
N. F. Hadley
影响因子:
2.2
作者:
D. Pearson
通讯作者:
D. Pearson