Magnitude of effects of substrate particle size, recent flooding, and catchment development on benthic invertebrates in 88 New Zealand rivers

Quinn, John M.; Hickey, Christopher W.

doi:10.1080/00288330.1990.9516433

Cited by 184 publications

(148 citation statements)

References 39 publications

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“…However, we found the influences of gravel and granite based geologies were small in relation to those of land use, which appeared to have an overriding influence on invertebrate community structure, particularly in streams that flowed through pastoral farmland. The percentage of shredders, and biotic indices (in particular MCI) were predictably higher in the native forest streams than the pastoral streams in both the Moutere gravel and Separation Point granite geologies, as has been found elsewhere (Quinn & Hickey 1990a;Scott et al 1994, Harding & Winterbourn 1995; Quinn et al 1997;Townsend et al 1997;Collier et al 2000;Quinn 2000;Hall et al 2001). …”

Section: Discussionsupporting

confidence: 48%

“…The effect of land use on macroinvertebrate communities has been well documented, particularly the degradation of stream communities when native forest is converted to pasture (Quinn & Hickey 1990a;Quinn 2000;Huryn et al 2002). Stream macroinvertebrate communities in mature exotic forest can be similar to those found in native forest (Harding & Winterbourn 1995) but, during and for several years following logging, these communities more closely resemble those of pastoral streams (Graynoth 1979;Death et al 2003;Reid et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Influences of geology and land use on macroinvertebrate communities across the Motueka River catchment, New Zealand

Shearer

Young

2011

New Zealand Journal of Marine and Freshwater Research

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The influences of geology and land use on macroinvertebrate communities were investigated in the Motueka River catchment, New Zealand. Comparisons of functional feeding groups, multivariate community composition and biotic indices (MCI, QMCI, %EPT) were made between native forest stream reaches that differed in subcatchment geology (ultramafic, hard sedimentary, granite, gravel, karst) and between stream reaches surrounded by different land uses (native forest, exotic forest and pasture) within two of these geologies (granite, gravel). Differences in invertebrate community density and taxon richness were greater across the three land uses in the same geology than among the five geologies. Macroinvertebrate communities in streams flowing through native forest had greater numbers of shredders, and higher MCI scores than pastoral streams. Exotic forest macroinvertebrate communities were similar to the native forest communities in granite geology, but distinct from both native and pastoral communities in sites with underlying gravel geology. The results demonstrate that there is potential for underlying geology to influence the magnitude of land use impacts on invertebrate communities. The geologies within a catchment should be accounted for when considering the consequences of land development on river and stream communities.

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Section: Discussionsupporting

confidence: 48%

Section: Introductionmentioning

confidence: 99%

Influences of geology and land use on macroinvertebrate communities across the Motueka River catchment, New Zealand

Shearer

Young

2011

New Zealand Journal of Marine and Freshwater Research

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“…1 and 4). These changes to a more tolerant fauna were reflected in reductions in QMCI values, which have been shown to be negatively correlated with periphyton biomass and chemical indicators of enrichment (Quinn & Hickey 1990a).…”

Section: Species (Feeding Group)mentioning

confidence: 99%

“…Samples were preserved immediately in 10% formalin. In the laboratory, invertebrates were identified to the lowest practicable taxonomic level (usually species or genus, except for Chironomidae), following the keys listed in Quinn & Hickey (1990a), and counted. First, the less common taxa were counted, then densities of abundant taxa (> 200 in a pooled sample) were calculated from counts of two subsamples that each contained at least 25 individuals, obtained using a Folsom-type sample splitter.…”

Section: Survey Timing and Reach Selectionmentioning

confidence: 99%

“…A recent survey of invertebrates in 88 New Zealand rivers indicated that the degree to which catchments are developed to improved pasture (i.e., pasture formed by ploughing, fertilising, and sowing exotic grasses) has an important influence on the type and biomass of the benthic invertebrate community (Quinn & Hickey 1990a, 1990b. Sites draining catchments with low-moderate levels of improved pasture (1-30% of catchment area) had higher invertebrate biomass but similar community types compared with sites with undeveloped catchments.…”

Section: Introductionmentioning

confidence: 99%

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Effects of riparian grazing and channelisation on streams in Southland, New Zealand. 2. Benthic invertebrates

Quinn¹,

Williamson²,

Smith³

et al. 1992

New Zealand Journal of Marine and Freshwater Research

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A survey of benthic invertebrate faunas in riparian-protected, riparian-grazed, and channelised reaches of five Southland streams with catchment sizes of 3-37 km 2 was carried out. It was part of a wider investigation to assess the effects of riparian grazing and channelisation on stream habitat and biota. In small streams (catchment areas 3-10 km 2 ; widths 1-4 m), channelisation or intensive grazing by cattle greatly reduced shading by riparian vegetation, resulting in substantial increases in daily maximum temperatures during summer. Channelisation also caused gross changes in channel morphology and intensive grazing of a reach with moist streamside soils was associated with increased bed sedimentation and bank damage. Marked changes in invertebrate communities were associated wilh these habitat modifications. In general, taxa favoured by cool water and low periphyton abundance (e.g., Plecoptera, Paraleptamphopus caeruleus, Deleatidium sp., and Helicopsyche albescens) decreased in density, whereas densities of taxa favoured by an abundance of periphyton (e.g., Chironomidae and Oxyethira albiceps) increased. In contrast, differences in physical habitat and invertebrate communities were minor between paired grazed and riparian-protected reaches of the larger streams (catchment areas 10-33 km 2 ; median widths 6-16 m) where grazing had little or no effect on Received 16 August 1991; accepted 3 December 1991 stream shading. These results indicate that in small streams, with median natural channel widths below c. 6 m, the effects on benthic invertebrates decrease in the following order, channelisation > intensive grazing by cattle > extensive grazing by cattle and/or sheep. Shade provided by riparian vegetation appears to play a vital role in maintaining cool, headwater, stream habitats for benthic invertebrate communities in these streams. M91053

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Hydraulic Habitat of Plants in Streams

Biggs

1996

Regul. Rivers: Res. Mgmt.

167

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Plant development in unshaded streams is reviewed within the context of a conceptual habitat model. Resource factors (incorporating light, nutrients and temperature) predominantly govern the processes of biomass gain and hydraulic factors (incorporating separate temporal and spatial scales) predominantly govern the processes of biomass loss. It is postulated that differences in hydraulic stability among streams over periods greater than a year govern whether a stream (or site) is dominated by periphyton, bryophytes or macrophytes. Hydraulic stability over periods of less than a year governs the average periphyton biomass. During steady‐state, interspate periods the effect of spatial differences in hydraulics varies depending on the stage of plant development. Periphyton and macrophyte colonization is enhanced by low velocities, and growth rate and organic matter accrual can be enhanced by moderate velocities. However, high velocities retard colonization and organic matter accrual. For mature communities, the peak biomass of periphyton and macrophytes can be negatively correlated with velocity. This is in contrast with bryophytes, which are often restricted to areas of high velocity on stable substrata. Hydraulic habitat suitability curves have yet to be developed for plant communities in streams.

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Magnitude of effects of substrate particle size, recent flooding, and catchment development on benthic invertebrates in 88 New Zealand rivers

Cited by 184 publications

References 39 publications

Influences of geology and land use on macroinvertebrate communities across the Motueka River catchment, New Zealand

Influences of geology and land use on macroinvertebrate communities across the Motueka River catchment, New Zealand

Effects of riparian grazing and channelisation on streams in Southland, New Zealand. 2. Benthic invertebrates

Hydraulic Habitat of Plants in Streams

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