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Radius construction and structure in the orb-web of Zilla diodia (Araneidae)

Zschokke, Samuel. (2000) Radius construction and structure in the orb-web of Zilla diodia (Araneidae). Journal of comparative physiology. A, Sensory, neuronal, and behavioral physiology, Vol. 186, H. 10. pp. 999-1005.

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Official URL: http://edoc.unibas.ch/dok/A5252272

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Abstract

In orb-webs, the tension of the sticky spiral produces a centripetal force on the radii, resulting in an increase in tension along each radius from the centre of the web to the periphery. Zilla diodia (Walckenaer, 1802) atypical of araneids, was found to adapt the structure of its radii to this tension gradient by building radii that are double stranded at the periphery of the web and single stranded near the centre. Furthermore, the proportion of each radius that is doubled was found to be larger in the upper part of the web - where the overall tensions in the radii are known to be higher - than in the lower part of the web, suggesting that the spider adjusts the proportion of each radius that is doubled to the overall tension in the radius.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Natur- Landschafts- und Umweltschutz > Naturschutzbiologie (Baur)
UniBasel Contributors:Zschokke, Samuel
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Springer
ISSN:0340-7594
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:28
Deposited On:22 Mar 2012 14:04

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