Abstract
We study here general food web models that include non-Lotka-Volterra trophic interactions. We set two logical requirements that any such model must satisfy: (Cl) invariance under aggregation of identical species, and (C2) mathematical separation of disconnected subwebs. We show that these logical requirements are not always satisfied by previously published models. We give the mathematical expressions corresponding to generalizations of three nonlinear functional responses: Rolling (prey-dependent), DeAngelis-Beddington, and Holling-like ratio-dependent. We then address the two questions of species aggregation and of responses to basal production.
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Arditi, R., Michalski, J. (1996). Nonlinear Food Web Models and Their Responses to Increased Basal Productivity. In: Polis, G.A., Winemiller, K.O. (eds) Food Webs. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7007-3_12
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DOI: https://doi.org/10.1007/978-1-4615-7007-3_12
Publisher Name: Springer, Boston, MA
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