|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
Experimental Analysis of Adhesion of Chrysolina Polita (Chrysomelidae: Coleoptera) on a Variety of Surfaces
1 Department of Zoology, University of Manchester, Oxford Road, Manchester M13 9PL
1. Pulling forces of Chrysolina polita (L.) on glass, perspex and cloth have been recorded and are plotted against body weight. The additional weight of eggs in many of the females is probably the main reason that, in females, pulling forces do. not increase significantly with body weight, whereas those of males do.
2. Pulling forces on glass and perspex are significantly correlated but, in general, neither are significantly correlated with those on cloth. This is because traction on glass and perspex is achieved by the adhesive setae, and on cloth by the tarsal claws.
3. Counts of the adhesive setae in 14 individuals indicate that numbers of climbing setae in females and males and females (combined), male setae in males, and the total number of adhesive setae in males, all show a significant increase with body weight.
4. Pulling force increases with the total number of adhesive setae in females, and males and females (combined).
Multiple regression analysis confirms the view that pulling force is a function of the number of adhesive setae.5. Hooks, suction, electrostatic forces and seizure are largely discredited, and molecular adhesion between the setae and the substratum, and possibly the cohesive forces and surface tension of a thin fluid layer, are confirmed as the most likely modes of adhesion on smooth surfaces in C. polita and most beetles.
6. It is proposed that the main forces of detachment acting on a leaf beetle are probably drag and the whiplash effect of the leaves and branches. Estimates for the wind speeds required to remove beetles from glass and cloth by drag forces alone are calculated.
Submitted on December 12, 1979
This article has been cited by other articles:
|
|
 |
|
  M. Heethoff and L. Koerner Small but powerful: the oribatid mite Archegozetes longisetosus Aoki (Acari, Oribatida) produces disproportionately high forces J. Exp. Biol., September 1, 2007; 210(17): 3036 - 3042. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. Federle Why are so many adhesive pads hairy? J. Exp. Biol., July 15, 2006; 209(14): 2611 - 2621. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 G. Huber, H. Mantz, R. Spolenak, K. Mecke, K. Jacobs, S. N. Gorb, and E. Arzt Evidence for capillarity contributions to gecko adhesion from single spatula nanomechanical measurements PNAS, November 8, 2005; 102(45): 16293 - 16296. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. N. Gorb and E. V. Gorb Ontogenesis of the attachment ability in the bug Coreus marginatus (Heteroptera, Insecta) J. Exp. Biol., September 1, 2004; 207(17): 2917 - 2924. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. Gorb, V. Kastner, A. Peressadko, E. Arzt, L. Gaume, N. Rowe, and S. Gorb Structure and properties of the glandular surface in the digestive zone of the pitcher in the carnivorous plant Nepenthes ventrata and its role in insect trapping and retention J. Exp. Biol., September 1, 2004; 207(17): 2947 - 2963. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Gao and H. Yao From the Cover: Shape insensitive optimal adhesion of nanoscale fibrillar structures PNAS, May 25, 2004; 101(21): 7851 - 7856. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. Federle, W. Baumgartner, and B. Holldobler Biomechanics of ant adhesive pads: frictional forces are rate- and temperature-dependent J. Exp. Biol., January 1, 2004; 207(1): 67 - 74. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. C. Hawthorn and B. D. Opell van der Waals and hygroscopic forces of adhesion generated by spider capture threads J. Exp. Biol., November 15, 2003; 206(22): 3905 - 3911. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. Arzt, S. Gorb, and R. Spolenak From micro to nano contacts in biological attachment devices PNAS, September 16, 2003; 100(19): 10603 - 10606. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. B. Kesel, A. Martin, and T. Seidl Adhesion measurements on the attachment devices of the jumping spider Evarcha arcuata J. Exp. Biol., August 15, 2003; 206(16): 2733 - 2738. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. Autumn and A. M. Peattie Mechanisms of Adhesion in Geckos Integr. Comp. Biol., December 1, 2002; 42(6): 1081 - 1090. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. D. Eigenbrode and R. Jetter Attachment to Plant Surface Waxes by an Insect Predator Integr. Comp. Biol., December 1, 2002; 42(6): 1091 - 1099. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. Federle, M. Riehle, A. S.G. Curtis, and R. J. Full An Integrative Study of Insect Adhesion: Mechanics and Wet Adhesion of Pretarsal Pads in Ants Integr. Comp. Biol., December 1, 2002; 42(6): 1100 - 1106. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. N. Gorb, R. G. Beutel, E. V. Gorb, Y. Jiao, V. Kastner, S. Niederegger, V. L. Popov, M. Scherge, U. Schwarz, and W. Votsch Structural Design and Biomechanics of Friction-Based Releasable Attachment Devices in Insects Integr. Comp. Biol., December 1, 2002; 42(6): 1127 - 1139. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Autumn, M. Sitti, Y. A. Liang, A. M. Peattie, W. R. Hansen, S. Sponberg, T. W. Kenny, R. Fearing, J. N. Israelachvili, and R. J. Full From the Cover: Evidence for van der Waals adhesion in gecko setae PNAS, September 17, 2002; 99(19): 12252 - 12256. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Z. Dai, S. N. Gorb, and U. Schwarz Roughness-dependent friction force of the tarsal claw system in the beetle Pachnoda marginata (Coleoptera, Scarabaeidae) J. Exp. Biol., August 15, 2002; 205(16): 2479 - 2488. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
O. Betz Performance and adaptive value of tarsal morphology in rove beetles of the genus Stenus (Coleoptera, Staphylinidae) J. Exp. Biol., April 15, 2002; 205(8): 1097 - 1113. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S Gorb, E Gorb, and V Kastner Scale effects on the attachment pads and friction forces in syrphid flies (Diptera, Syrphidae) J. Exp. Biol., January 4, 2001; 204(8): 1421 - 1431. [Abstract] [PDF]
|
|
|
|
|
|
T. Eisner and D. J. Aneshansley Defense by foot adhesion in a beetle (Hemisphaerota cyanea) PNAS, June 6, 2000; 97(12): 6568 - 6573. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y Jiao, S Gorb, and M Scherge Adhesion measured on the attachment pads of Tettigonia viridissima (Orthoptera, insecta) J. Exp. Biol., January 6, 2000; 203(12): 1887 - 1895. [Abstract] [PDF]
|
|
|
|
|
|
W Federle, K Rohrseitz, and B Holldobler Attachment forces of ants measured with a centrifuge: better 'wax-runners' have a poorer attachment to a smooth surface J. Exp. Biol., January 2, 2000; 203(3): 505 - 512. [Abstract] [PDF]
|
|
