Relating body size to the role of aquatic subsidies for the riparian spider Nephila clavata

  title={Relating body size to the role of aquatic subsidies for the riparian spider Nephila clavata},
  author={Fumikazu Akamatsu and Hideshige Toda and Tokio Okino},
  journal={Ecological Research},
We examined the relationship between body size of the riparian spider Nephila clavata and the contribution of allochthonous (aquatic insects) and autochthonous (terrestrial insects) sources to its diet using stable isotope analysis. During the study period from July to September, the body size of the females increased remarkably (about 60-fold) but that of males remained small. The biomass of both aquatic and terrestrial insects trapped on the spider webs increased with spider size, with the… CONTINUE READING

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