微生境和粘性趾垫塑造了壁虎的肢体形态。

IF 3.5 1区 生物学 Q1 ZOOLOGY Integrative zoology Pub Date : 2024-07-31 DOI:10.1111/1749-4877.12880
Anna Zimin, Sean V Zimin, L Lee Grismer, Aaron M Bauer, David G Chapple, Jacob Dembitzer, Uri Roll, Shai Meiri
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引用次数: 0

摘要

不同的基质会带来不同的生物力学挑战,从而选择特定的形态,例如长肢可加快奔跑速度,短肢可在攀爬狭窄基质时保持平衡姿势。我们测试了壁虎的运动如何受到它们所处的微生境和一种关键适应性--粘性趾垫--的影响,并分析了这些因素与肢体形态的关系。我们收集了超过90%的有肢壁虎物种的微生境和趾垫数据,以及121个有肢壁虎属中83个属403个物种的肢体测量数据,然后将这些数据用于系统发育比较分析。我们的数据突显了粘性趾垫与树栖性的关系,但系统发生学分析表明这种关系并不显著,表明这些特征受到系统发生学的限制。比较分析表明,与无垫壁虎相比,在不同的微生境中,有垫壁虎的后肢和脚较短,肢长更均匀,嵴:大腿比更低。萨克森壁虎的四肢和肢节最长。这可能是受到长步幅的选择、起飞速度的提高以及在倾斜表面上的静态稳定性的影响。与树栖壁虎相比,陆栖壁虎的后肢和前肢更为均匀,这与其他蜥蜴的模式不同。我们的研究结果突出表明,由于不同类群的生态环境和进化途径各不相同,因此很难推断它们之间的微生境形态关系。我们强调了关键创新特征(如粘性趾垫)在塑造壁虎肢体形态方面的重要性,以及相应地塑造它们在直接环境中运动的重要性。
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Microhabitat and adhesive toepads shape gecko limb morphology.

Different substrates pose varied biomechanical challenges that select specific morphologies, such as long limbs for faster running and short limbs for balanced posture while climbing narrow substrates. We tested how gecko locomotion is affected by the microhabitat they occupy and by a key adaptation-adhesive toepads-through analyzing how those are related to limb morphology. We collected microhabitat and toepads data for over 90% of limbed gecko species, and limb measurements for 403 species from 83 of the 121 limbed gecko genera, which we then used in phylogenetic comparative analyses. Our data highlight the association of adhesive toepads with arboreality, but a phylogenetic analysis shows that this relationship is not significant, suggesting that these traits are phylogenetically constrained. Comparative analyses reveal that pad-bearing species possess shorter hindlimbs and feet, more even limb lengths, and lower crus: thigh ratios, than padless geckos, across microhabitats. Saxicolous geckos have the longest limbs and limb segments. This is probably influenced by selection for long strides, increased takeoff velocity, and static stability on inclined surfaces. Terrestrial geckos have more even hind- and forelimbs than arboreal geckos, unlike patterns found in other lizards. Our findings underline the difficulty to infer on microhabitat-morphology relationships from one taxon to another, given their differing ecologies and evolutionary pathways. We emphasize the importance of key innovation traits, such as adhesive toepads, in shaping limb morphology in geckos and, accordingly, their locomotion within their immediate environment.

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来源期刊
CiteScore
6.40
自引率
12.10%
发文量
81
审稿时长
>12 weeks
期刊介绍: The official journal of the International Society of Zoological Sciences focuses on zoology as an integrative discipline encompassing all aspects of animal life. It presents a broader perspective of many levels of zoological inquiry, both spatial and temporal, and encourages cooperation between zoology and other disciplines including, but not limited to, physics, computer science, social science, ethics, teaching, paleontology, molecular biology, physiology, behavior, ecology and the built environment. It also looks at the animal-human interaction through exploring animal-plant interactions, microbe/pathogen effects and global changes on the environment and human society. Integrative topics of greatest interest to INZ include: (1) Animals & climate change (2) Animals & pollution (3) Animals & infectious diseases (4) Animals & biological invasions (5) Animal-plant interactions (6) Zoogeography & paleontology (7) Neurons, genes & behavior (8) Molecular ecology & evolution (9) Physiological adaptations
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Issue Information cba-miR-222-3p involved in photoperiod-induced apoptosis in testes of striped hamsters by targeting TRAF7. Exploring riverine aquatic animal diversity and establishing aquatic ecological monitoring approaches tailored to the Qinling region via eDNA technology. Sympatric diversity pattern driven by the secondary contact of two deeply divergent lineages of the soybean pod borer Leguminivora glycinivorella. Unlocking agro-ecosystem sustainability: exploring the bottom-up effects of microbes, plants, and insect herbivores.
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