Nom du corpus

Corpus Systématique Animale

Titre du document

Inter-and intraspecific effects of density manipulations upon females of two orb-weaving spiders (araneae: araneidae)

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_01008
Auteur(s)
  • David H. Wise
Affiliation(s)
  • Department of biological Sciences, University of Maryland, Baltimore County (UMBC), 21228, Catonsville, Maryland, USA
Résumé

A field experiment was conducted to establish whether or not inter-and intraspecific competition occurs between two syntopic species of orb-weaving spiders. Replicated single-species and mixed-species adult populations of the basilica spider, Mecynogea lemniscata, and the labyrinth spider, Metepeira labyrinthea, were established at a range of densities on open experimental units in the species' natural habitat. Each experimental unit was a 4mx1.6mx1m wood frame supporting branches upon which introduced spiders built webs. Survival and reproduction on the units were monitored from 1 August through 1 November 1978, There were no significant negative interspecific effects of density upon either survival or reproduction, which indicates that interspecific competition was not occurring during the experiment. There was statistically significant evidence of intraspecific competition between females for both species, but the negative density effects were small. They explained 5% of the variance in Mecynogea web height, 2% of the variance in Metepeira survival, and 1% of the variation in number of eggs per sac for Mecynogea. Hence inter-and intraspecific competition was either absent or weak in 1978, despite the fact that a field experiment conducted the previous year (Wise 1979) demonstrated that prey abundance was limiting the egg production of both species. Evidence of food limitation in 1977 followed by only weak competitive interactions the following year suggests that the significance of resource limitation and competition may vary temporally for the basilica and labyrinth spiders.

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
B50DB1FD480A1E8768F22A307C6EE5E1E1A115C3
Revue

Oecologia

Année de publication
1981
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.958
Sous-corpus
  • Arthropodes
Type de publication
Journal
ark:/67375/1BB-5HV2NCSF-H
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