Small but powerful: the oribatid miteArchegozetes longisetosusAoki (Acari, Oribatida) produces disproportionately high forces
| Autor: | Michael Heethoff, Lars Koerner |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Claw
Friction Surface Properties Physiology Aquatic Science Mite Surface roughness Animals Body Size Acari Composite material Molecular Biology Oribatida Ecology Evolution Behavior and Systematics Ultrasonography Mites Force transducer biology Extremities Anatomy biology.organism_classification Archegozetes longisetosus Biomechanical Phenomena Insect Science Significant positive correlation Animal Science and Zoology Locomotion |
| Zdroj: | Journal of Experimental Biology. 210:3036-3042 |
| ISSN: | 1477-9145 0022-0949 |
| Popis: | SUMMARYWe investigated the holding and pulling forces generated by claws of the microarthropod Archegozetes longisetosus (Chelicerata, Acari,Oribatida) on three substrates with different roughness(Ra=0.05 μm, 1 μm, 30 μm). Holding forces were measured perpendicular to the substrate using a strain gage force transducer;pulling forces were measured parallel to the substrate using an analytical scale. We found a significant positive correlation of surface roughness and the forces generated. Mites produced holding forces on horizontal rough surfaces (Ra=30 μm) of up to 1180 times their weight;on vertical rough surfaces (Ra=30 μm) they can pull with 530 times their weight, effectively involving only two pairs of legs. The relative forces are five times higher than theoretically expected for organisms of this size ( |
| Databáze: | OpenAIRE |
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