Food web patterns and their consequences

@article{Pimm1991FoodWP,
  title={Food web patterns and their consequences},
  author={Stuart L. Pimm and John H. Lawton and Joel E. Cohen},
  journal={Nature},
  year={1991},
  volume={350},
  pages={669-674}
}
A food web is a map that describes which kinds of organisms in a community eat which other kinds. A web helps picture how a community is put together and how it works. Although webs were often initially reported in despair at ever understanding ecological complexity, recently discovered widespread patterns in the shapes of webs, and theoretical explanations for these patterns, indicate that webs are orderly and intelligible, and have some foreseeable consequences for the dynamics of communities… Expand

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References

SHOWING 1-10 OF 36 REFERENCES
Community assembly and food web stability
TLDR
The results of computer simulations using predator-prey equations allow us to identify three types of food web stability and examine how they may change through development of food webs. Expand
Community Food Webs: Data and Theory
Food webs hold a central place in ecology. They describe which organisms feed on which others in natural habitats. This book describes recently discovered empirical regularities in real food webs: itExpand
Variation in Food-Web Structure: The Determinants of Connectance
  • P. Warren
  • Geography
  • The American Naturalist
  • 1990
Although there is considerable evidence for a number of patterns in the structure of food webs, there is a conspicuous lack of agreement among explanations for such patterns (Pimm 1982; DeAngelis etExpand
The complexity and stability of ecosystems
Early studies suggested that simple ecosystems were less stable than complex ones, but later studies came to the opposite conclusion. Confusion arose because of the many different meanings ofExpand
Scale invariance in food web properties.
TLDR
This analysis of 60 invertebrate-dominated community food webs confirms the existence of all but one of these properties in such webs and addresses a common concern held by critics of food web theory that observed food web properties may be sensitive to trophic aggregation. Expand
The determinants of food chain lengths
TLDR
The Determinants of Food Chain Lengths and Trophic Exploitation, Community Structure and Dynamics of Cyclic and Non-Cyclic Populations. Expand
Spatial and temporal variation in food webs in water-filled treeholes
TLDR
Food webs have been drawn for the community of animals found in water-filled treeholes in south-east Queensland, Australia, and there was a significant inverse relationship between the mean relative abundance of the predators and the saprophages, their prey. Expand
Complexity, Diversity, and Stability: A Reconciliation of Theoretical and Empirical Results
TLDR
Investigating the relationship between complexity and the lack of change in plant biomass (which the authors call biomass stability) following the removal of an herbivore finds that increased complexity can enhance biomass stability, even in model grazing systems. Expand
Food webs and niche space.
  • J. E. Cohen
  • Mathematics, Geography
  • Monographs in population biology
  • 1978
TLDR
It is shown that within habitats of a certain limited physical and temporal heterogeneity, the overlaps among niches, along their trophic dimensions, can be represented in a one-dimensional niche space far more often than would be expected by chance alone and perhaps always. Expand
A stochastic theory of community food webs. VI. Heterogeneous alternatives to the cascade model
TLDR
Numerical comparisons of the observed structural trends with the model predictions show that the only viable alternative to the cascade model is the predator-dominant, constant-column-sum, linear-link-scaling model. Expand
...
1
2
3
4
...