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Flexible omnivory in Dikerogammarus villosus (Sowinsky, 1894) (Amphipoda) - Amphipod Pilot Species Project (AMPIS) Report 5
Platvoet, D.; Van der Velde, G.; Dick, J.T.A.; Li, S. (2009). Flexible omnivory in Dikerogammarus villosus (Sowinsky, 1894) (Amphipoda) - Amphipod Pilot Species Project (AMPIS) Report 5. Crustaceana 82(6): 703-720
In: Crustaceana. Brill Academic Publishers: Leiden; Köln; New York; Boston. ISSN 0011-216X; e-ISSN 1568-5403, meer
Peer reviewed article  

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Trefwoorden
    Dikerogammarus villosus (Sowinsky, 1894) [WoRMS]; Brak water; Zoet water

Auteurs  Top 
  • Platvoet, D.
  • Van der Velde, G.
  • Dick, J.T.A.
  • Li, S.

Abstract
    Feeding in Dikerogammarus villosus (Sowinsky, 1894) males was observed in the field and recorded on video in the laboratory. The following feeding modes were recognized: detritus feeding, grazing, particle feeding, coprophagy, predation on benthic and free swimming invertebrates, predation on fish eggs and larvae, as well as feeding on byssus threads of the zebra mussel, Dreissena polymorpha (Pallas, 1771). The feeding methods are described and illustrated with screenshots of video recordings. The very flexible feeding modes of D. villosus, which make diet switches possible, form a trait that must be an important factor in the invasion success of this Ponto-Caspian gammaridean species, and may thus explain for a great deal its high ecosystem impact.

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