Compartments revealed in food-web structure

@article{Krause2003CompartmentsRI,
  title={Compartments revealed in food-web structure},
  author={Ann E. Krause and Kenneth A. Frank and Doran M. Mason and Robert E. Ulanowicz and William W. Taylor},
  journal={Nature},
  year={2003},
  volume={426},
  pages={282-285}
}
Compartments in food webs are subgroups of taxa in which many strong interactions occur within the subgroups and few weak interactions occur between the subgroups. Theoretically, compartments increase the stability in networks, such as food webs. Compartments have been difficult to detect in empirical food webs because of incompatible approaches or insufficient methodological rigour. Here we show that a method for detecting compartments from the social networking science identified significant… Expand
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References

SHOWING 1-10 OF 37 REFERENCES
ARE FOOD WEBS DIVIDED INTO COMPARTMENTS
TLDR
Drawing on a number of alternative approaches, the null hypothesis that real food webs are not significantly more compartmented than chance alone dictates is tested. Expand
The Compartmentation of Real and Assembled Ecosystems
TLDR
It is suggested here that it might make ecological sense to regard dominant cliques as something like "trophic guilds," and mathematical food web universes which predict the observed frequency of interval food webs are yields. Expand
Stability in Real Food Webs: Weak Links in Long Loops
TLDR
It is shown and explained mathematically that patterning enhances stability, because it reduces maximum “loop weight” and thus reduces the amount of intraspecific interaction needed for matrix stability. Expand
Simple rules yield complex food webs
TLDR
This model extends the existing ‘cascade model’ and improves its fit ten-fold by constraining species to consume a contiguous sequence of prey in a one-dimensional trophic niche. Expand
Resource compartmentation and the stability of real ecosystems
TLDR
Using other food webs, it is demonstrated that the relationship between structure and diversity is similar for different resource compartments, suggesting that these compartments behave as entities. Expand
Network Role Analysis in the Study of Food Webs: An Application of Regular Role Coloration
TLDR
The objective of this paper is to answer a call in the ecological literature for greater clarity in thinking about the role of species in ecosystems, by applying the notion of regular coloration to food webs. Expand
Network structure and biodiversity loss in food webs: robustness increases with connectance
TLDR
Food-web structure mediates dramatic effects of biodiversity loss including secondary and ‘cascading’ extinctions and robustness increases with food-web connectance but appears independent of species richness and omnivory. Expand
Complex Trophic Interactions in Deserts: An Empirical Critique of Food-Web Theory
  • G. Polis
  • Biology
  • The American Naturalist
  • 1991
TLDR
It is argued that most cataloged webs are oversimplified caricatures of actual communities, and patterns from food webs of real communities generally do not support predictions arising from dynamic and graphic models of food-web structure. Expand
Compartmentalization in plant–insect flower visitor webs
TLDR
Interactions between entomophilous flowering plants and their insect visitors were recorded at two mesotrophic grassland Communities in Norfolk, and a diagrammatic quantitative web produced for each community, which reflected classic pollination syndromes to some extent. Expand
Stability and diversity of ecological communities
TLDR
An application of May's analytical solution for large matrices in which each element by itself is stable showed that a complex system perched near this transition region is subject to a self-generating catastrophe upon only a minor modification of system parameters. Expand
...
1
2
3
4
...