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Titolo:
BEHAVIORAL TACTICS FOR PREY CAPTURE AND PREY INGESTION IN 2 SYMPATRICSPIDERS
Autore:
PASQUET A; LEBORGNE R;
Indirizzi:
UNIV NANCY 1,LAB BIOL & PHYSIOL COMPORTEMENT,BP 239 F-54506 VANDOEUVRE NANCY FRANCE
Titolo Testata:
Netherlands journal of zoology
fascicolo: 1, volume: 48, anno: 1998,
pagine: 39 - 52
SICI:
0028-2960(1998)48:1<39:BTFPCA>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
ORB-WEAVING SPIDERS; ARANEIDAE; SELECTION; ARANEAE; TRAP;
Keywords:
PREDATORY BEHAVIOR; PLASTICITY; INTERSPECIFIC COMPARISONS; ORB-WEAVING SPIDERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
A. Pasquet e R. Leborgne, "BEHAVIORAL TACTICS FOR PREY CAPTURE AND PREY INGESTION IN 2 SYMPATRICSPIDERS", Netherlands journal of zoology, 48(1), 1998, pp. 39-52

Abstract

Hunting tactics of two sympatric orb-weaving spiders Argiope bruennichi (Scopoli) and Araneus marmoreus Clerck were investigated in the field by offering them flies (40 mg) or grasshoppers (250 mg or 100 mg). For each prey item offered capture rate, spider behaviour and durationwere observed. Quantities ingested by the spiders and durations of ingestion of grasshoppers were investigated in the laboratory. Spiders of both species exhibit distinct tactics for each prey type. To capturegrasshoppers, spiders first wrap them and then bite their prey. Afterfirst leaving the prey, the spider returns, carries the prey to the retreat or to the hub and then ingests it. To capture flies, spiders ofboth species first bite it, and immediately carry it to the hub or the retreat where they eat it. A. bruennichi showed more variable tactics with flies than with grasshoppers. A. marmoreus showed more variabletactics with small grasshoppers. Total time taken for the capture of a given prey type was similar for the two spiders: for grasshoppers A.marmoreus had a longer handling-time and ingested a larger part of grasshoppers, but spent less time ingesting it than A. bruennichi.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/07/20 alle ore 22:28:35