Resource Partitioning in Ecological Communities
- 5 July 1974
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 185 (4145), 27-39
- https://doi.org/10.1126/science.185.4145.27
Abstract
To understand resource partitioning, essentially a community phenomenon, we require a holistic theory that draws upon models at the individual and population level. Yet some investigators are still content mainly to document differences between species, a procedure of only limited interest. Therefore, it may be useful to conclude with a list of questions appropriate for studies of resource partitioning, questions this article has related to the theory in a preliminary way. 1) What is the mechanism of competition? What is the relative importance of predation? Are differences likely to be caused by pressures toward reproductive isolation? 2) Are niches (utilizations) regularly spaced along a single dimension? 3) How many dimensions are important, and is there a tendency for more dimensions to be added as species number increases? 4) Is dimensional separation complementary? 5) Which dimensions are utilized, how do they rank in importance, and why? How do particular dimensions change in rank as species nuimber increases? 6) What is the relation of dimensional separation to difference in phenotypic indicators? To what extent does the functional relation of phenotype to resource characteristics constrain partitioning? 7) What is the distance between mean position of niches, what is the niche standard deviation, and what is the ratio of the two? What is the niche shape?Keywords
This publication has 128 references indexed in Scilit:
- Interspecific competition, predation and species diversity: A commentJournal of Theoretical Biology, 1972
- Characteristic Permitting Coexistence Among Parasitoids of a Sawafly in QuebecEcology, 1970
- On the Methods of Resource Division in Grassland Bird CommunitiesThe American Naturalist, 1968
- The Limiting Similarity, Convergence, and Divergence of Coexisting SpeciesThe American Naturalist, 1967
- Niche Diversity in Five Sympatric Species of Intertidal Amphipods (Crustacea: Haustoriidae)Ecological Monographs, 1967
- The Periodical Cicada Problem. II. EvolutionEvolution, 1966
- The Temporal Component of Diversity Among Species of BirdsEvolution, 1966
- The Evolution of Bill Size Differences Among Sympatric Congeneric Species of BirdsEvolution, 1965
- Temperature Responses and Ecological Relations of Two Bornean LizardsEcology, 1959
- Principles of Natural Coexistence Indicated by Leafhopper PopulationsEvolution, 1957