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An Integrative Study of Insect Adhesion: Mechanics and Wet Adhesion of Pretarsal Pads in Ants1
Abstract Many animals that locomote by legs possess adhesive pads. Such organs are rapidly releasable and adhesive forces can be controlled during walking and running. This capacity results from theExpand
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Biomechanics of the movable pretarsal adhesive organ in ants and bees
Hymenoptera attach to smooth surfaces with a flexible pad, the arolium, between the claws. Here we investigate its movement in Asian weaver ants (Oecophylla smaragdina) and honeybees (ApisExpand
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Biomechanics of smooth adhesive pads in insects: influence of tarsal secretion on attachment performance
Many insects possess smooth adhesive pads on their legs, which adhere by thin films of a two-phasic secretion. To understand the function of such fluid-based adhesive systems, we simultaneouslyExpand
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Why are so many adhesive pads hairy?
  • W. Federle
  • Materials Science, Medicine
  • Journal of Experimental Biology
  • 15 July 2006
SUMMARY Many arthropods and vertebrates possess tarsal adhesive pads densely covered with setae. The striking morphological convergence of `hairy' pads in lizards, spiders and several insect ordersExpand
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Insect aquaplaning: Nepenthes pitcher plants capture prey with the peristome, a fully wettable water-lubricated anisotropic surface.
  • H. Bohn, W. Federle
  • Medicine, Biology
  • Proceedings of the National Academy of Sciences…
  • 28 September 2004
Pitcher plants of the genus Nepenthes have highly specialized leaves adapted to attract, capture, retain, and digest arthropod prey. Several mechanisms have been proposed for the capture of insects,Expand
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Wet but not slippery: boundary friction in tree frog adhesive toe pads
Tree frogs are remarkable for their capacity to cling to smooth surfaces using large toe pads. The adhesive skin of tree frog toe pads is characterized by peg-studded hexagonal cells separated byExpand
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Thrips pollination of the dioecious ant plant Macaranga hullettii (Euphorbiaceae) in Southeast Asia.
Discussion about thrips (Thysanoptera) as main pollinators has been controversial in the past because thrips do not fit the preconception of an effective pollinator. In this study, we presentExpand
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Pushing versus pulling: division of labour between tarsal attachment pads in cockroaches
Adhesive organs on the legs of arthropods and vertebrates are strongly direction dependent, making contact only when pulled towards the body but detaching when pushed away from it. Here we show thatExpand
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Harmless nectar source or deadly trap: Nepenthes pitchers are activated by rain, condensation and nectar
The leaves of Nepenthes pitcher plants are specialized pitfall traps which capture and digest arthropod prey. In many species, insects become trapped by ‘aquaplaning’ on the wet pitcher rimExpand
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The effect of surface roughness on claw and adhesive hair performance in the dock beetle Gastrophysa viridula
Abstract  Natural adhesive systems are adapted to attach to rough surfaces, but the underlying mechanisms have not been fully clarified. Attachment forces for the beetle Gastrophysa viridula wereExpand
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