Nom du corpus

Corpus Systématique Animale

Titre du document

Secondary plant succession: how is it modified by insect herbivory?

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Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Insect herbivory
  • Root herbivore
  • Succession
  • Plant species richness
Nom du fichier dans la ressource
Insectes_v2b_01459
Auteur(s)
  • V. K. Brown 1
  • A. C. Gange 1
Affiliation(s)
  • 1) Department of Biology, Imperial College at Silwood Park, SL5 7PY, Ascot, Berks, UK
Résumé

The effects of foliar- and root-feeding insects on the dynamics of an early successional plant community, representing the first four years of colonisation, were examined. Subterranean insect herbivores were found to increase in density with increasing successional age of the plant community. In early succession, chewing insects mainly Coleoptera (Scarabaeidae) and Diptera (Tipulidae) were dominant. This was in direct contrast to the foliar-feeding insects, which were dominated by sap-feeders (mainly Auchenorrhynchan Hemiptera). Reduction of both foliar- and root-feeding insects with appropriate insecticides had different, but dramatic, consequences for the plant community. Reducing foliar herbivory resulted in large increases in perennial grass growth, with plant species richness being reduced as the grasses outcompeted the forbs. Reducing subterranean herbivory prolonged the persistence of annual forbs, greatly increased perennial forb colonisation and, as a consequence, plant species richness. Foliar-feeding insects thus act to delay succession by slowing grass colonisation. In contrast, root-feeding insects accelerate succession by reducing forb persistence and colonisation. The structure of early successional plant communities is therefore modified by the two modes of herbivory.

Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Plant Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
Identifiant ISTEX
124B49617B89B10FB0F61CA99012E2EB84CCE780
Revue

Vegetatio

Année de publication
1992
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
7.891
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-2WVFMC22-P
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