The influence of microhabitat on availability of drifting invertebrate prey to a net-spinning caddis fly. Smith-Cuffney, F. L. Freshwater Biology, 1987.
Paper abstract bibtex Invertebrate drift was sampled at both a rockface and a deep pebble riffle site in streams draining both a clearcut and a forested catchment. A sampler was designed to separate the bottom 2 cm of flow, encompassing the effective range of caddisfly, from upper flow. No significant difference in drift density was seen between sites within each stream. However, numbers per square centimeter intake area per day at the rockface sites were 4 times higher in the clearcut and 10 times higher in the forested stream than at the pebble-riffle site. Rockface habitat which had highest drift availability was also the site of maximum secondary production of a predaceous collector-filterer in both streams studied. Increased sediment load in the clearcut stream may influence the efficiency of utilization of invertebrate drift by collector-filterers.
@article{smith-cuffney_influence_1987,
title = {The influence of microhabitat on availability of drifting invertebrate prey to a net-spinning caddis fly.},
volume = {17},
url = {http://cwt33.ecology.uga.edu/publications/498.pdf},
abstract = {Invertebrate drift was sampled at both a rockface and a deep pebble riffle site in streams draining both a clearcut and a forested catchment. A sampler was designed to separate the bottom 2 cm of flow, encompassing the effective range of caddisfly, from upper flow. No significant difference in drift density was seen between sites within each stream. However, numbers per square centimeter intake area per day at the rockface sites were 4 times higher in the clearcut and 10 times higher in the forested stream than at the pebble-riffle site. Rockface habitat which had highest drift availability was also the site of maximum secondary production of a predaceous collector-filterer in both streams studied. Increased sediment load in the clearcut stream may influence the efficiency of utilization of invertebrate drift by collector-filterers.},
journal = {Freshwater Biology},
author = {Smith-Cuffney, F. L.},
year = {1987},
keywords = {CWT}
}
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