Are toe fringes important for lizard burying in highly mobile sand?

IF 2.6 2区 生物学 Q1 ZOOLOGY
Peng Zheng, Tao Liang, Lei Shi
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Abstract

Toe fringes are a key innovation for sand dwelling lizards, and the relationship between toe fringe function and substrate properties is helpful in understanding the adaptation of lizards to sand dune environments. We tested the sand burial performance of Phrynocephalus mystaceus on different sand substrates with toe fringe manipulation, with the aim of assessing whether the function of the toe fringes shifts under different substrate properties, especially in highly mobile substrates. The sand burial performance of P. mystaceus was influenced by substrate properties in relation to the toe fringe states of the lizard. After removal of the bilateral toe fringes, the sand burial ability score of P. mystaceus was significantly higher on sand substrates below 100 mesh than on native sand substrates. As the angle of stability of the substrate properties decreased, the sand burial performance of the lizard was even better after the bilateral toe fringes were removed. The results of the LASSO model and the path analysis model showed that the stability angle provided the opposite effect on sand burial performance in different toe fringe states. These results further suggest that the sand burial function of toe fringes may not be suitable for highly mobile sand substrates. It remains to be tested further whether the function of toe fringes is more important for running on sand.
脚趾边缘对蜥蜴在流动性很强的沙地中进行掩埋是否很重要?
趾缘是沙栖蜥蜴的一项关键创新,趾缘功能与基质性质之间的关系有助于理解蜥蜴对沙丘环境的适应。我们通过操纵趾缘来测试神秘沙蜥在不同沙质基质上的埋沙性能,目的是评估趾缘的功能在不同基质性质下是否会发生变化,尤其是在高流动性基质上。沙蜥的趾缘状态受基质性质的影响。在去除双侧趾缘后,神秘巨蜥在100目以下砂质基质上的埋沙能力得分明显高于在原生砂质基质上的埋沙能力得分。随着基质性质稳定角的减小,移除双侧趾缘后,沙蜥的埋沙能力更强。LASSO 模型和路径分析模型的结果表明,在不同的趾缘状态下,稳定角对沙埋性能的影响是相反的。这些结果进一步表明,趾状缘的埋砂功能可能不适合高流动性的砂基。趾缘的功能对于在沙地上行驶是否更为重要,还有待进一步检验。
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来源期刊
CiteScore
4.90
自引率
0.00%
发文量
29
审稿时长
>12 weeks
期刊介绍: Frontiers in Zoology is an open access, peer-reviewed online journal publishing high quality research articles and reviews on all aspects of animal life. As a biological discipline, zoology has one of the longest histories. Today it occasionally appears as though, due to the rapid expansion of life sciences, zoology has been replaced by more or less independent sub-disciplines amongst which exchange is often sparse. However, the recent advance of molecular methodology into "classical" fields of biology, and the development of theories that can explain phenomena on different levels of organisation, has led to a re-integration of zoological disciplines promoting a broader than usual approach to zoological questions. Zoology has re-emerged as an integrative discipline encompassing the most diverse aspects of animal life, from the level of the gene to the level of the ecosystem. Frontiers in Zoology is the first open access journal focusing on zoology as a whole. It aims to represent and re-unite the various disciplines that look at animal life from different perspectives and at providing the basis for a comprehensive understanding of zoological phenomena on all levels of analysis. Frontiers in Zoology provides a unique opportunity to publish high quality research and reviews on zoological issues that will be internationally accessible to any reader at no cost. The journal was initiated and is supported by the Deutsche Zoologische Gesellschaft, one of the largest national zoological societies with more than a century-long tradition in promoting high-level zoological research.
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