Morphological and mechanical characterisation of the hindwing nodus from the Libellulidae family of dragonfly (Indonesia) |
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| Institution: | 1. Laboratory of Entomology, Faculty of Biology, Gadjah Mada University, Jl. Teknika Selatan, Sekip Utara, Yogyakarta 55281, Indonesia;2. Department of Biosciences, Cell Biology, Abo Akademi University, Biocity, Tykistökatu 6, Turku, Finland;3. Laboratory of Animal Structure and Development, Faculty of Biology, Gadjah Mada University, Jl. Teknika Selatan, Sekip Utara, Yogyakarta 55281, Indonesia;4. Laboratory of Paper Coating and Converting, Centre for Functional Materials, Abo Akademi University, Porthaninkatu 3, Turku 20500, Finland;1. Department of Anatomy and Pathology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25704, USA;2. Department of Animal Physiology, Zoological Institute, Biocenter Cologne, University of Cologne, 50923 Cologne, Germany;3. Department of Biological Cybernetics, University of Bielefeld, 33501 Bielefeld, Germany;1. Department of Biology, Acadia University, 33 Westwood Ave., Wolfville, Nova Scotia B4P 2R6, Canada;2. Natural Resources Canada, Canadian Forest Service-Atlantic Forestry Centre, PO Box 4000, Fredericton, New Brunswick E3B 5P7, Canada;1. Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo, 2936, Petrópolis, CEP 69067-375 Manaus, Amazonas, Brazil;2. Laboratório de Ecologia e Conservação, Universidade Federal do Pará, Instituto de Ciências Biológicas, Rua Augusto Correia, No. 1 Bairro Guama, CEP 66.075-110 Belém, Pará, Brazil;1. Department of Geosciences, University of Padova, Via Gradenigo 6, 35131 Padova, Italy;2. Corpo Forestale dello Stato, Centro Nazionale per lo Studio e la Conservazione della Biodiversità Forestale “Bosco Fontana”, Strada Mantova 29, 46045 Marmirolo (MN), Italy;3. E Mach Foundation, Research and Innovation Centre, Via E. Mach 1, 38100 San Michele all’Adige (TN), Italy |
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| Abstract: | In this communication, the morphologies and mechanical characteristics of nodi from the hindwings of seven Indonesian Libellulidae dragonfly species are identified. Geometrical analyses reveal that in all species, the shape of dorsal face resilin is relatively long and thin while ventral face resilin covers a greater surface area than dorsal face resilin, and is shaped like a hook. Finite element analyses reveal that the magnitude of strain energy may differ considerably between species, even though the locations of highest strain energy are usually the same. Importantly, a correlation is found to exist between the mechanical forces that build up in the resilin, the face under investigation (dorsal or ventral) and the elongational shape factor of the resilin. |
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| Keywords: | Odonata Dragonfly wing Nodus Biomechanics Composite joint Resilin |
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