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Substrate complexity influences the preference of a predatory stonefly, Eusthenia costalis BANKS (Plecoptera: Eustheniidae), for its prey

Citation

Turnbull, DKR and Barmuta, LA, Substrate complexity influences the preference of a predatory stonefly, Eusthenia costalis BANKS (Plecoptera: Eustheniidae), for its prey, Archiv fur Hydrobiologie, 155, (3) pp. 481-492. ISSN 0003-9136 (2002) [Refereed Article]

Abstract

Prey selection of the stonefly Eusthenia costalis was investigated by presenting late instars with a choice of three different prey species [Nousia sp. Navás (Ephemeroptera: Leptophlebiidae), Neboissoperla sp. McLellan (Plecoptera: Gripopterygidae) and Antipodeus sp. Williams and Barnard (Amphipoda: Paramelitidae)] or two distinct size classes of Nousia. To determine whether substrate complexity influences the foraging preference of E. costalis selection trials were conducted using two different levels of substrate complexity: "fine" (sieve dimension 1-4 mm), and "coarse" (8-16 mm); Stonefly nymphs selected Nousia in fine substrate and Neboissoperla in coarse substrate. Stonefly nymphs were not selective, based upon the size of Nousia prey in fine substrate, however, they preferred large Nousia in the more complex substrate. Irrespective of substrate complexity, as the size of E. costalis nymphs increased preference for Neboissoperla declined.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Freshwater Ecology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Environmental Sciences
Author:Turnbull, DKR (Dr Derek Turnbull)
Author:Barmuta, LA (Associate Professor Leon Barmuta)
ID Code:24487
Year Published:2002
Web of Science® Times Cited:3
Deposited By:Zoology
Deposited On:2002-08-01
Last Modified:2004-12-06
Downloads:0

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