The structure of food webs not only describes
the feeding relationships between organisms in a given community; moreover, it
can reveal dynamic properties of the community like resilience, nutrient
recycling and resistance.
Two main approaches have been used in field studies
of food webs: the topological approach and the energetic one. The first refers
to the topological regularities in the food web and involves some statistical “laws” or invariants. The second approach considers energy fluxes and dissipation
at each node of the web. Regularities in food webs topology constitute the
basement of the classic “food web theory”. Many authors have critiqued these
theories arguing that such generalizations probably are artifacts due to the
poor quality of the data sets. Read more>>>>>>>>>>>>>
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