Nom du corpus

Corpus Systématique Animale

Titre du document

Limiting similarity and the intensity of competitive effects on the mottled sculpin, Cottus bairdi, in experimental stream communities

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Artificial streams
  • Competition
  • Fish
  • Limiting similarity
  • Streams
Nom du fichier dans la ressource
Poissons_v2b_000553
Auteur(s)
  • W. J. Resetarits Jr
Affiliation(s)
  • Department of Zoology, Duke University, 2770, Durham, NC, USA
  • Mountain Lake Biological Station, Route 1, Box 105a, 27708 A 24136, Pembroke, USA
Résumé

The identification of potential competitors has been driven by the concept of limiting similarity. Lacking are explicit tests of interaction strength among morphologically similar and dissimilar species. I used the mottled sculpin, Cottus bairdi, as a focal species in an artificial stream experiment designed to compare the effect of intraspecific competition to interspecific cometition from two very different species: a congener, the Kanawha sculpin (C. carolinae ssp.), and an unrelated species, the fantail darter (Etheostoma flabellare). The differences in morphology between these two species generate specific predictions under limiting similarity regarding the likelihood of competition and its relative strength: the congener should be a more important potential competitor. Increased fish density had a strong effect on the multivariate response of survival and growth, and on the relative condition of C. bairdi, indicating competition. The effect of additional C. bairdi or Kanawha sculpins were roughly equal, but the effect of E. flabellare was significantly greater. The most important potential impact on C. bairdi came from interspecific competition by a species that is smaller and very different in morphology, contrary to predictions based on limiting similarity.

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 - ethologie animale
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
0D1D6F7DE8B3F46598518FB15D51F5EF2248B331
Revue

Oecologia

Année de publication
1995
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.22
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-5CKPM97R-X
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