论文信息 - ON LUMPING SPECIES IN FOOD WEBS

ON LUMPING SPECIES IN FOOD WEBS

Species in community food webs are commonly aggregated or lumped on the basis of overlap in predators and prey. This note reports an unexpected result of lumping species in observed food webs and simulated food webs. The main result is that it is much easier to lump species in observed webs than in simulated webs. The reason is that there is much more overlap in predators and prey for species in observed webs than in simulated webs. This points to a fundamental deficiency in web assembly models that assume a random distribution of links.

A. Solow | A. Beet

[1] Neo D. Martinez. Artifacts or Attributes? Effects of Resolution on the Little Rock Lake Food Web , 1991 .

[2] Charles M. Newman,et al. A stochastic theory of community food webs I. Models and aggregated data , 1985, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[3] S. Stearns,et al. The Structure of Food Webs , 1982, The American Naturalist.

[4] Thomas W. Schoener,et al. Food Webs From the Small to the Large: The Robert H. MacArthur Award Lecture , 1989 .

[5] A. Solow. On the Goodness of Fit of the Cascade Model , 1996 .

[6] J. Lawton. Structure of food webs , 1978, Nature.

[7] S. Hall,et al. Food-web patterns : lessons from a species-rich web , 1991 .

[8] Neo D. Martinez. Constant Connectance in Community Food Webs , 1992, The American Naturalist.

[9] Lloyd Goldwasser,et al. SAMPLING EFFECTS AND THE ESTIMATION OF FOOD‐WEB PROPERTIES , 1997 .

[10] Neo D. Martinez. Effects of resolution on food web structure , 1993 .

[11] Neo D. Martinez. Scale-Dependent Constraints on Food-Web Structure , 1994, The American Naturalist.