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Evolutionary Biomechanics of the Rostrum of Curculio Linnaeus, 1758 (Coleoptera: Curculionidae)

Abstract Weevils are among the most diverse and evolutionarily successful animal lineages on Earth. Their success is driven in part by a structure called the rostrum, which gives weevil heads a characteristic "snout-like" appearance. Nut weevils in the genus Curculio use the rostrum to drill holes into developing fruits and nuts, wherein they deposit their eggs. During oviposition this exceedingly slender structure is bent into a straightened configuration - in some species up to 90° - but does not suffer any damage during this process. The performance of the snout is explained in terms of cuticle biomechanics and rostral curvature, as presented in a series of four interconnected studies. First, a micromechanical constitutive model of the ... (more)
Created Date 2009
Contributor Jansen, Michael Andrew (Author) / Franz, Nico M (Advisor) / Chawla, Nikhilesh (Committee member) / Harrison, Jon (Committee member) / Martins, Emilia (Committee member) / Arizona State University (Publisher)
Subject Biomechanics / Evolution & development / Entomology / Beetle cuticle / Bending mechanics / Constitutive modeling / Curculio / Finite element analysis / Rostrum
Type Doctoral Dissertation
Extent 227 pages
Language English
Note Doctoral Dissertation Evolutionary Biology 2009
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS

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Description Dissertation/Thesis