Nom du corpus

Corpus Systématique Animale

Titre du document

Foraging ecology and niche partitioning in orb-weaving spiders

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Insectes_v2b_01100
Auteur(s)
  • Kenneth M. Brown
Affiliation(s)
  • Department of Biological Sciences, Purdue University at Fort Wayne, 46805, Fort Wayne, Indiana, USA
  • Crooked Lake Laboratory, Purdue University at Fort Wayne, 46805, Fort Wayne, Indiana, USA
Résumé

Foraging patterns were determined for three orbweaving spiders in several geographical locations varying in percent cover by herbaceous vegetation. Argiope trifasciata was the most common species in early successional habitats, while both Argiope aurantia and Araneus trifolium were more common in wetter, more herbaceous sites. Discriminant analysis revealed that web height selected for webs and body size were the variables that explained most of the variation among populations in foraging patterns. Argiope aurantia forages lowest in vegetation, A. trifasciata at intermediate heights, and A. trifolium near the top of the vegetation. The body size sequence is reversed. Web radius, spider size, and web height appear to explain much of the variation in abundance and size of prey in webs. Species foraging higher in the vegetation take more winged prey, while larger species foraging lower in the vegetation tend to take larger, jumping prey like acridids. Comparison of prey in webs with field estimates of potential prey suggests that orbweavers select large insect prey. Inferential evidence indicates that interspecific competition may be responsible for the divergence in foraging patterns among species reported here. However, field manipulative experiments have not yet indicated that competition among orb-weavers is severe.

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
E2714E9FB59CB9FF204B2A58567C36FA51E2A8F2
Revue

Oecologia

Année de publication
1981
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.404
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-HW3XGMZB-H
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