Nom du corpus

Corpus Systématique Animale

Titre du document

Aggregation pattern of individuals and the outcomes of competition within and between species: Differential equation models

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Insectes_v2b_01892
Auteur(s)
  • Eizi Kuno
Affiliation(s)
  • Entomological Laboratory, College of Agriculture, Kyoto University, 606, Kyoto, Japan
Résumé

The influence of spatial distribution pattern on the outcomes of intra- and interspecific competition is studied theoretically. The models developed are the generalized logistic andVolterra equations, whereLloyd’s indices of intra- and interspecies mean crowding were incorporated with their assumed linear relationship to mean density in order to express the intensity of crowding which is really effective to the existing individuals. It is shown that while the increasing patchiness of distribution has a pronounced effect of promoting the intraspecific competition and lowering the equilibrium density for individual populations, it generally relaxes the interspecific competition, making it easy for different species sharing the same niche, which would otherwise be incompatible, to coexist stably. These models thus provide a simplest theoretical basis to explain why many insect populations in nature are kept relatively rare in number and why a number of allied species often coexist freely sharing the same resource, against the “competitive exclusion principle” deduced from the originalVolterra equations.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - General Agricultural and Biological Sciences
Identifiant ISTEX
44A5A087785B1608F490C1C78D894B17B2574201
Revue

Researches on Population Ecology

Année de publication
1988
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.189
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-78WRG4SX-N
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