Aggregation of Pteronarcella badia Nymphs and Effects of Interaction with Claassenia sabulosa (Plecoptera)
- 1 July 1988
- Vol. 53 (1) , 37-40
- https://doi.org/10.2307/3565660
Abstract
Claassenia sabulosa (Banks) and Pteronarcella badia (Hlagen) stonefly nymphs were examined for distributional responses in an experimental setting. In treatments with single individuals and groups of four, P. badia, a shredder, distributed itself in proportion to the available surface area among fibrous, non-food substrates of different sizes. In treatments with four and fourteen P. badia, the nymphs demonstrated aggregation, often with body contact. Its distribution became random and significantly different from substrate surface area in the presence of C. sabulosa, a predator, indicating an interspecific interaction.This publication has 1 reference indexed in Scilit:
- Interbiome Comparison of Stream Ecosystem DynamicsEcological Monographs, 1983