Skip to content. | Skip to navigation

Personal tools

You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Cannibalism and prey sharing among juveniles of the spider Oedothorax gibbosus (Blackwall, 1841) (Erigoninae, Linyphiidae, Araneae)

D Vanacker, K Deroose, S Pardo, D Bonte and JP Maelfait (2004)

Cannibalism and prey sharing among juveniles of the spider Oedothorax gibbosus (Blackwall, 1841) (Erigoninae, Linyphiidae, Araneae)

BELGIAN JOURNAL OF ZOOLOGY, 134(S1):23-28.

In a terrarium experiment, juvenile cannibalism in the dwarf spider Oedothorax gibbosus (Blackwall, 1841) was very high - up to 99\%. More first juveniles were cannibalised at higher initial densities, and there was no effect on this cannibalism from offering different prey species. Although in their natural environment spiderlings may more readily evade one another, this terrarium experiment demonstrates the drastic effect of juvenile cannibalism. Larger first juveniles are apparently more prevalent among the cannibals, and juvenile cannibalism among similar sized spiderlings is less frequent. Prey sharing observed between similar sized first juveniles is not a social behaviour, but is rather a forced prey sharing resulting from competition among equally strong juveniles that are unable to defend their prey items from one another. Larger first juveniles do not tolerate smaller ones sharing their prey.

Araneae; Erigoninae; juvenile cannibalism; food sharing; competition
9th Benelux Congress of Zoology, Antwerp, BELGIUM, NOV 08-09, 2002
BJZ

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Editor-in-Chief:
Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium

 



1863-1903
Annales de la Société malacologique de Belgique
 
1903-1923
​Annales de la Société royale malacologique et zoologique de Belgique
 
1923-1989
Annales de la Société Royale Zoologique de Belgique
 
1989-
Belgian Journal of Zoology