A Complex Food Web II

"United Kingdom Grassland Trophic Web is a taxonomic species web based on data collected from 24 sites between 1980 and 1992. From grassland plots distributed within England and Wales, 164,215 plant stems were collected and dissected to identify the taxa and feeding relationships. For more information, see Dawah et al 1995.

The web structure is organized vertically, with node color representing trophic level. Red nodes represent basal species, such as plants and detritus, orange nodes represent intermediate species, and yellow nodes represent top species or primary predators. Links characterize the interaction between two nodes, and the width of the link attenuates down the trophic cascade (i.e. a link is thicker at the predator end and thinner at the prey end).

Reference publications

  • Dawah, H.A., B.A. Hawkins, and M.F. Claridge. 1995. Structure of the parasitoid communities of grass-feeding chalcid wasps. Journal of Animal Ecology, vol. 64, pp. 708-720.
  • Martinez, N.D., B.A. Hawkins, H.A. Dawah, and B.P. Feifarek. 1999. Effects of sampling effort on characterization of food-web structure. Ecology, vol. 80, no. 3, pp. 1044-1055."

Image and Explanation Thanks to www.foodwebs.org