Nom du corpus

Corpus Systématique Animale

Titre du document

Trophic diversity, niche breadth and generation times of exopterygote insects in a secondary succession

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Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Insectes_v2b_01823
Auteur(s)
  • V. K. Brown 1
  • T. R. E. Southwood 2
Affiliation(s)
  • 1) Imperial College at Silwood Park, Ascot, Berks, England
  • 2) Department of Zoology, Oxford, England
Résumé

Various ecological characteristics have been determined for the exopterygote insect fauna of three sites in a secondary succession, with successional ages zero–two years (ruderal and early successional — Young Field), seven to eight years (mid successional — Old Field) and around 60 years (late successional — Woodland). The taxonomic diversity of the group as a whole (Table 1) and the trophic diversity (major types of feeding habits) (Table 2) increased with successional age. A comparison of the numbers of individuals and species of insect with the abundance and species of plant of each of the main life forms (annuals, biennials, perennials, trees, grasses (and rushes), ferns and lower plants) showed that at the start of secondary succession there was a good correlation between the number of species of insect and number of species of plant. In the second year and later the correlation is between plant abundance and insect abundance (the number of individuals) (Table 3). The sap-feeding insects may be divided into three specialised guilds: phloem feeders, xylem feeders and mesophyll feeders. The proportion of species in each guild was similar in all four successional stages (Table 4). Niche breadth (determined from host plant records) in the sap feeding herbivores was inversely related to the successional age of their habitat (Table 6). Herbivore species colonising the stages early in succession had, on average, shorter generation times than those of later stages (Table 7).

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 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
0848FD333B7FF9DD7FD0EA36694BFF4F4871A0A5
Revue

Oecologia

Année de publication
1983
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.148
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-6TFK3NJ1-S
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