Why cross the web: decoration spectral properties and prey capture in an orb spider (Argiope keyserlingi) web
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چکیده
منابع مشابه
Plasticity in extended phenotypes: orb web architectural responses to variations in prey parameters.
A spider orb web is an extended phenotype; it modifies and interacts with the environment, influencing spider physiology. Orb webs are plastic, responding to variations in prey parameters. Studies attempting to understand how nutrients influence spider orb-web plasticity have been hampered by the inability to decouple prey nutrients from other, highly correlated, prey factors and the intrinsic ...
متن کاملSilken toolkits: biomechanics of silk fibers spun by the orb web spider Argiope argentata (Fabricius 1775).
Orb-weaving spiders spin five fibrous silks from differentiated glands that contain unique sets of proteins. Despite diverse ecological functions, the mechanical properties of most of these silks are not well characterized. Here, we quantify the mechanical performance of this toolkit of silks for the silver garden spider Argiope argentata. Four silks exhibit viscoelastic behaviour typical of po...
متن کاملDeterminants of Natural Mating Success in the Cannibalistic Orb-Web Spider Argiope bruennichi
Monogynous mating systems (low male mating rates) occur in various taxa and have evolved several times independently in spiders. Monogyny is associated with remarkable male mating strategies and predicted to evolve under a male-biased sex ratio. While male reproductive strategies are well documented and male mating rates are easy to quantify, especially in sexually cannibalistic species, female...
متن کاملThe Influence of Vibratory Courtship on Female Mating Behaviour in Orb-Web Spiders (Argiope keyserlingi, Karsch 1878)
Web-building spiders are important models for sexual selection. While our understanding of post-copulatory mechanisms including sperm competition and cryptic female choice is considerable, our knowledge of courtship and how it influences male and female mating decisions is still extremely poor. Here, we provide the first comprehensive description of male courtship behaviour and vibrations gener...
متن کاملMales of the orb-web spider Argiope bruennichi sacrifice themselves to unrelated females.
Costs of inbreeding can lead to total reproductive failure and inbreeding avoidance is, therefore, common. In classical sex roles with no paternal care, the selective pressure to avoid inbreeding is mostly on the female, which carries the higher costs. In some orb-web spiders, this situation is very different because females are polyandrous and males are monogynous or at most bigynous. Addition...
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ژورنال
عنوان ژورنال: Biological Journal of the Linnean Society
سال: 2008
ISSN: 0024-4066,1095-8312
DOI: 10.1111/j.1095-8312.2008.00999.x