Nom du corpus

Corpus Systématique Animale

Titre du document

A preliminary study on collembolan populations in a pine forest

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_00401
Auteur(s)
  • Hiroshi Takeda
Affiliation(s)
  • Forest Ecological Laboratory, College of Agriculture, Kyoto University, Kyoto, Japan
Résumé

1. A study was made of the populations of Collembola in the pine forest. Among the eight species commonly found,Folsomia octoculata Handschin was numerically dominant. 2. Seasonal population changes of these eight species were described over a year. It was found that many species show two peaks in number. As forF. octoculata, the dominant species, the changes in number was discussed in connection with the variation in age structure. 3. The census data for each species were examined for the distribution pattern by using the $\mathop m\limits^* - m$ regression method. None of these eight species was distributed at random in the soil and they could be classified into three groups based on the differences in the degree of aggregation in terms of coefficient ? of the regression. It was suggested that such differences in the distribution pattern are largely due to differences in the response to heterogeneity of the habitat. In the case ofF. octoculata, the changes of distribution pattern in the course of post-embryonic development were examined and it was found that (a) the component of distribution is a single individual rather than a colony, and (b) the degree of aggregation is decreased with the development of individuals. 4. Using the $\mathop m\limits^* - m$ relationship, the relation of the necessary sample size to the population density was derived for a fixed level of presision (D=S.E./m=0.2) and some suggestions were given concerning sampling plans for these insects.

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
  • 4 - invertebres
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - General Agricultural and Biological Sciences
Identifiant ISTEX
BDCFE4ABE8B5DE8B8B5E0C72438550D65B707A33
Revue

Researches on Population Ecology

Année de publication
1973
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.531
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-1X002MX0-9
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