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Relationships between riparian buffer widths and the effects of logging on stream habitat, invertebrate community composition and fish abundance

Citation

Davies, PE and Nelson, MD, Relationships between riparian buffer widths and the effects of logging on stream habitat, invertebrate community composition and fish abundance, Australian Journal of Marine and Freshwater Research, 45, (7) pp. 1289-1305. ISSN 0067-1940 (1994) [Refereed Article]

DOI: doi:10.1071/MF9941289

Abstract

Impacts from the logging of Eucalyptus forest on stream habitat, macroinvertebrate abundance and diversity, and fish abundance were surveyed in Tasmania, Australia. Forty-five pairs of sites from 34 streams of >2.5 km2 catchment area were each sampled once during summer in the period 1990-92. Each site pair consisted of an ‘impacted’ site downstream of a logging treatment and an upstream or closely matched ‘paired control’ site. Site pair treatments encompassed two logging methods (cable and conventional) with a range of riparian buffer strip widths (0-50 m) and included unlogged controls. Differences between site pair variables were used as test statistics for the detection of logging impacts. Logging significantly increased riffle sediment, length of open stream, periphytic algal cover, water temperature and snag volume. Logging also significantly decreased riffle macroinvertebrate abundance, particularly of stoneflies and leptophlebiid mayflies, and brown trout abundance. All effects of logging were dependent on buffer strip width and were not significantly affected by coupe slope, soil erodibility or time (over one to five years) since logging. All impacts of logging were significant only at buffer widths of <30 m. Minimum buffer widths for eliminating logging impacts on stream habitats and biota are discussed. © 1994 CSIRO.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Freshwater Ecology
Objective Division:Environment
Objective Group:Ecosystem Assessment and Management
Objective Field:Ecosystem Assessment and Management of Coastal and Estuarine Environments
Author:Davies, PE (Professor Peter Davies)
Author:Nelson, MD (Mr Mark Nelson)
ID Code:40606
Year Published:1994
Web of Science® Times Cited:111
Deposited By:Zoology
Deposited On:2006-10-09
Last Modified:2006-10-09
Downloads:0

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