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.
