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Niche Hierarchy: Structure, Organization, and Assembly in Natural Systems
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Dieser Artikel gilt, aufgrund seiner Grösse, beim Versand als 3 Artikel!
Inhalt: |
Key Features:
[[Contains one of the earliest food web data atlases
[[Shows the development of several novel data-transformation models (transformations of empirical food web matrices) based on graph theory and algebraic topology
[[Includes Sugihara's "Resource Graph," the "Consumer Overlap Graph," and the "Simplicial Complex" model of the niche
[[Finds that the simplicial complexes of real niche spaces do not have holes but are densely packed
[[Shows that chordality (triangulation) is a ubiquitous topological feature of food webs
[[Demonstrates the first, and only, empirical ecological assembly rule rigorously deduced from data, and used in the generation of food webs (the basic idea of conservative assembly with an underlying ordering of resources became the basis of current methods for generating model foodwebs)
[[Finds the relationship between chordality, lack of holes, and conservative food web assembly, and how these more fundamental properties explain the prevalence of intervality
[[Relates the observed topological regularities and the assembly rule to higher dynamic stability in model ecosystems
[[Shows how the specific topological features uncovered in food webs resonate with the niche hierarchy model of species abundance a model with no free parameters that reproduces two universal empirical regularities in ecological species-relative-abundance data (the ubiquitous canonical lognormal species abundance distribution and the species area constant z=1/4) |
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