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dc.creatorBarrantes Montero, Gilbert
dc.creatorTriana Cambronero, Emilia
dc.creatorSánchez Quirós, Catalina
dc.description.abstractOrb webs evolved primarily to capture prey, though they also have other functions. Recently, it has been argued that the orb web does not work as a functional unit, but instead some sections or components have presumably been shaped by selection to increase capture success of large prey (relative to the spider size). Changes in these components (e.g., an increase capture area) presumably compromise the design and function of other components (e.g., density of adhesive threads). In this study, we explore the changes in the design of orb webs throughout the ontogeny of two orb-weaving spiders of the genus Leucauge: L. mariana (Taczanowski, 1881) and L. argyra (Walckenaer, 1841). Small nymphs of both species construct webs with a relatively larger capture area and higher density of adhesive spiral loops compared to webs of larger individuals. In addition, small nymphs of L. argyra construct webs with more radii. These features probably increase the probability of capturing large prey. Some web features show different trade-offs in the two species. For instance, the number of adhesive threads increases with capture area in webs of L. mariana, but decreases in L. argyra. The density of adhesive threads in webs of both species decreases as the area of the web increases, but decreases faster in L. argyra. Thus, small nymphs are capable of optimizing different structural components of the web to increase the probability of capturing large prey, but the trade-offs between web features vary between species.es_ES
dc.rightsCopyright © 2018 BioOne*
dc.sourceJournal of Arachnology, vol.45(2), pp. 152-159.es_ES
dc.subjectWeb modularityes_ES
dc.subjectOntogenetic changeses_ES
dc.subjectLeucauge argyraes_ES
dc.subjectLeucauge marianaes_ES
dc.subject615.942 Ponzoñases_ES
dc.titleFunctional changes in web design along the ontogeny of two orb-weaverses_ES
dc.typeartículo científico
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biologíaes_ES

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