A comparison of some environmental adaptations of the littoral collembolans<i>Anuridella marina</i>(Willem) and<i>Anurida maritima</i>(Guérin)

King, P. E.; Pugh, Philip; Fordy, M. R.; Love, Natalie; Wheeler, S.A.

doi:10.1080/00222939000770461

Cited by 19 publications

(25 citation statements)

References 26 publications

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“…The skin at the bottom of these cavities has to be highly permeable to enable skin respiration. 9 At the microscopic scale, T. bielanensis possess papillose secondary granules and a limited number of thin bristles as a tertiary structure. The secondary granules are completely decorated by primary granules excluding the smooth domes at the top of these papillae.…”

Section: Resultsmentioning

confidence: 99%

“…6,8,9 However, the remarkable wetting resistance of the skin surfaces even against wetting by low-surface-tension liquids such as alkanes or ethyl alcohol and against bacterial adhesion were only recently quantitatively described. 10 These findings reflect the adaptation to habitats where water is massively loaded with surface-active substances originating from decaying organic matter and from microorganisms.…”

Section: Introductionmentioning

confidence: 99%

“…[9][10][11] Surface roughness has been extensively studied in general and shown to affect the macroscopic surface wetting properties significantly: In the Cassie state, liquids can be sustained at the top of the asperities and air (designated as plastron) is trapped inside the grooves of the rough surface underneath the liquid, resulting in a minimal solid-liquid contact area. 12,13 In the Wenzel state, liquids can penetrate the grooves and wet the entire rough surface characterized by a maximal solid-liquid contact area.…”

Section: Introductionmentioning

confidence: 99%

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Tunable nano-replication to explore the omniphobic characteristics of springtail skin

et al. 2013

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Springtails (Collembola) are wingless arthropods adapted to cutaneous respiration in temporarily rain-flooded and microbially contaminated habitats by a non-wetting and antiadhesive skin surface that is mechanically rather stable. Recapitulating the robust and effectively repellent surface characteristics of springtail skin in engineered materials may offer exciting opportunities for demanding applications, but it requires a detailed understanding of the underlying design principles. Towards this aim and based on our recent analysis of the structural features of springtail skin, we developed a tunable polymer replication process to dissect the contributions of different structural elements and surface chemistry to the omniphobic performance of the cuticle. The Cassie-Wenzel transition at elevated pressures was explored by in situ plastron collapse experiments and by numerical FEM simulations. The results obtained unravel the decisive role of nanoscopic cuticle structures for the protection of springtails against wetting, and explain how the evolved nanotopography enables the production of omniphobic surfaces even from intrinsically hydrophilic polymer materials.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tunable nano-replication to explore the omniphobic characteristics of springtail skin

et al. 2013

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“…Wax esters support the non-wetting properties due to their hydrophobic characteristics [6]. The thin lipid layer enables gas exchange, but hardly protects against transpiration and desiccation [36]. Therefore, Collembola, with some exceptions, depend on humid surroundings as given in soil habitats.…”

Section: Discussionmentioning

confidence: 99%

The multi-layered protective cuticle of Collembola: a chemical analysis

Nickerl

Tsurkan

Hensel

et al. 2014

J. R. Soc. Interface.

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Collembola, also known as springtails, are soil-dwelling arthropods that typically respire through the cuticle. To avoid suffocating in wet conditions, Collembola have evolved a complex, hierarchically nanostructured, cuticle surface that repels water with remarkable efficiency. In order to gain a more profound understanding of the cuticle characteristics, the chemical composition and architecture of the cuticle of Tetrodontophora bielanensis was studied. A stepwise removal of the different cuticle layers enabled controlled access to each layer that could be analysed separately by chemical spectrometry methods and electron microscopy. We found a cuticle composition that consisted of three characteristic layers, namely, a chitinrich lamellar base structure overlaid by protein-rich nanostructures, and a lipid-rich envelope. The specific functions, composition and biological characteristics of each cuticle layer are discussed with respect to adaptations of Collembola to their soil habitat. It was found that the non-wetting characteristics base on a rather typical arthropod cuticle surface chemistry which confirms the decisive role of the cuticle topography.

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“…However, some groups well-represented in sub-Antarctic terrestrial faunas, such as the ameronothroid mites and some isoto mid and hypogastrurid springtails, are known to show very wide ecophysiological tolerances and can survive long periods in or on the surface of seawater (Strong 1967, King et al 1990, Davenport & MacAlister 1996, Coulson et al 2002, Marshall & Convey 2004, Hawes et al 2007a. This mechanism is likely to underlie dispersal of marine littoral species, some of which also then occupy supralittoral habitats.…”

Section: Biogeographic Patterns and Driversmentioning

confidence: 99%

Influences on and origins of terrestrial biodiversity of the sub-Antarctic islands

Convey

2007

PPRST

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A comparison of some environmental adaptations of the littoral collembolansAnuridella marina(Willem) andAnurida maritima(Guérin)

Cited by 19 publications

References 26 publications

Tunable nano-replication to explore the omniphobic characteristics of springtail skin

Tunable nano-replication to explore the omniphobic characteristics of springtail skin

The multi-layered protective cuticle of Collembola: a chemical analysis

Influences on and origins of terrestrial biodiversity of the sub-Antarctic islands

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