Nom du corpus

Corpus Systématique Animale

Titre du document

Regulation of rotifer densities by crustacean zooplankton in an oligotrophic montane lake in British Columbia

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Arthropodes_v2b_01128
Auteur(s)
  • William E. Neill
Affiliation(s)
  • Institute of Animal Resource Ecology and Department of Zoology, The University of British Columbia, V6T 1W5, Vancouver, B.C., Canada
Résumé

To examine the relative demographic effects of predation and competition for food in rotifers during spring and summer in an oligotrophic lake, predator and competitor densities and food supplies were experimentally altered inside large enclosures. Abundances of rotifer species were positively correlated with experimental densities of fourth instar Chaoborus trivittatus larvae, a major crustacean predator in 1976. Experimental alteration of the densities of Daphnia rosea and Diaptomus leptopus and D. kenai in 1978 produced highly significant increases in rotifer biomass only under Daphnia removal, but not under copepod removal. Inorganic fertilizer additions to enclosures in 1978 and 1979 revealed minimal rotifer increases unless pulsed additions were large or Daphnia were also excluded. Large demographic reponses of rotifers to low fertilizer loadings in the absence of Daphnia confirmed the pre-eminence of competitive food limitation in producing rotifer scarcity in summer.

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 - vecteurs d'importance medicale, nuisances, depredateurs des denrees et materiaux: surveillance des populations et lutte
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
63409F01561E70FAFFC096417FB7F57753F39684
Revue

Oecologia

Année de publication
1984
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.68
Sous-corpus
  • Arthropodes
Type de publication
Journal
ark:/67375/1BB-6D24X658-R
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