生活在沙滩上的蟋蟀(直翅目:三角蟋蟀科)不喜欢与它们的体色相匹配的基质

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY Entomological Science Pub Date : 2022-10-03 DOI:10.1111/ens.12522
Riho Sato, Takashi Kuriwada
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引用次数: 0

摘要

栖息地选择是最大化健身的重要行为。栖息地选择的一个因素是对栖息地基质的偏好。在掠夺性回避的背景下,更喜欢与自己的体色相匹配的基质是自适应的。地蟋蟀Dianemobius csikii(Bolívar,1901)出现在沙滩上。csikii的体色类似于它们栖息地的沙子,这可能是crypsis的一种形式。如果D.csikii无法选择与其体色相匹配的合适栖息地背景,蟋蟀就会面临被捕食的高风险。这种风险可能导致蟋蟀的数量减少。为了检查D.csikii是否对与其体色相匹配的基质表现出偏好,我们在控制饲养过程中使用的地板基质类型后,对沙子或土壤基质进行了二选一测试。蟋蟀并不喜欢沙子。若虫期地板基质对偏好没有显著影响。这些结果表明,当栖息地分散时,蟋蟀不会主动选择神秘的背景。不同性别的底物偏好存在显著差异。这些结果反映了男性和女性生殖策略的差异。
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Sandy beach dwelling crickets (Orthoptera: Trigonidiidae) have no preference for substrates that match their body color

Habitat choice is an important behavior for maximizing fitness. One of the factors involved in habitat choice is preference for habitat substrates. In the context of predatory avoidance, it is adaptive to prefer substrates that are matched to own body color. The ground cricket Dianemobius csikii (Bolívar, 1901) occurs on sandy beaches. The body color of D. csikii resembles the sand of their habitat, which could be a form of crypsis. If D. csikii is not able to choose a suitable habitat background that matches their body color, the crickets incur a high risk of predation. The risk could result in population decline of the cricket. To examine whether D. csikii shows preference for substrates that match its body color, we undertook a two-choice test of sand or soil substrates after controlling the type of flooring substrates used during rearing. The crickets did not show preference for sand. There was no significant effect of flooring substrates during the nymph stage on the preference. These results suggest that when habitats are fragmented, crickets do not actively choose a cryptic background. There were significant differences in the substrate preference between sexes. These results reflect differences in the reproductive strategies of males and females.

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来源期刊
Entomological Science
Entomological Science 生物-昆虫学
CiteScore
2.00
自引率
11.10%
发文量
30
审稿时长
6-12 weeks
期刊介绍: Entomological Science is the official English language journal of the Entomological Society of Japan. The Journal publishes original research papers and reviews from any entomological discipline or from directly allied field in ecology, behavioral biology, physiology, biochemistry, development, genetics, systematics, morphology, evolution and general entomology. Papers of applied entomology will be considered for publication if they significantly advance in the field of entomological science in the opinion of the Editors and Editorial Board.
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