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The influence of partial timber harvesting in riparian buffers on macroinvertebrate and fish communities in small streams in Minnesota, USA

Forest Ecology and Management

By:
, , , , , , , , and
DOI: 10.1016/j.foreco.2010.02.006

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Abstract

Relatively few evaluations of aquatic macroinvertebrate and fish communities have been published in peer-reviewed literature detailing the effect of varying residual basal area (RBA) after timber harvesting in riparian buffers. Our analysis investigated the effects of partial harvesting within riparian buffers on aquatic macroinvertebrate and fish communities in small streams from two experiments in northern Minnesota northern hardwood-aspen forests. Each experiment evaluated partial harvesting within riparian buffers. In both experiments, benthic macroinvertebrates and fish were collected 1 year prior to harvest and in each of 3 years after harvest. We observed interannual variation for the macroinvertebrate abundance, diversity and taxon richness in the single-basin study and abundance and diversity in the multiple-basin study, but few effects related to harvest treatments in either study. However, interannual variation was not evident in the fish communities and we detected no significant changes in the stream fish communities associated with partially harvested riparian buffers in either study. This would suggest that timber harvesting in riparian management zones along reaches ≤200 m in length on both sides of the stream that retains RBA ≥ 12.4 ± 1.3 m2 ha−1 or on a single side of the stream that retains RBA ≥ 8.7 ± 1.6 m2 ha−1 may be adequate to protect macroinvertebrate and fish communities in our Minnesota study systems given these specific timber harvesting techniques.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
The influence of partial timber harvesting in riparian buffers on macroinvertebrate and fish communities in small streams in Minnesota, USA
Series title:
Forest Ecology and Management
DOI:
10.1016/j.foreco.2010.02.006
Volume
259
Issue:
10
Year Published:
2010
Language:
English
Publisher:
Elsevier
Contributing office(s):
Coop Res Unit Leetown
Description:
13 p.
First page:
1946
Last page:
1958
Country:
United States
State:
Minnesota
Online Only (Y/N):
N
Additional Online Files(Y/N):
N