Trends in particulate organic matter fluxes, community processes and macroinvertebrate functional groups along a Great Lakes Drainage Basin river continuum

Cummins, Kenneth W.; Klug, Michael J.; Ward, George; Spengler, George L.; Speaker, Robert W.; Ovink, Roger W.; Mahan, David C.; Petersen, Robert C.

doi:10.1080/03680770.1980.11897095

Cited by 11 publications

(11 citation statements)

References 16 publications

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“…Changing the FPOM initial conditions from 0 to 1.0 mg/L changed the total annual transport of FPOM in Big Hurricane Branch from 1327 to 1410 kg. Other studies have shown no general trend in FPOM concentration with stream distance (Minshall 1967, Fisher and Likens 1973, Naiman and Sedell 1979a, Cummins et a!. 1981, Minshall et a!.…”

Section: Comparison Of Simulations and Field Datamentioning

confidence: 88%

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The Role of Benthic Macroinvertebrates in Detritus Dynamics of Streams: A Computer Simulation

Webster¹

1983

Ecological Monographs

100

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Detritus dynamics in Big Hurricane Branch, a second-order stream at Coweeta Hydrologic Laboratory in the southern Appalachian Mountains, were simulated with a computer model, using data from a variety of Coweeta stream studies. The model was used to evaluate the role of macroinvertebrates in the stream. Macroinvertebrates accounted for only a small portion of the respiration of detritus; their major role was conversion of benthic detritus into transported detritus. Macroinvertebrates were responsible for 27% of annual particulate organic matter (POM) transport, though when they were removed there was only a 10% reduction in POM transport because of a compensatory increase in storm transport. The contribution of macroinvertebrates to POM transport during nonstorm periods was much more significant, as high as 83% in late summer.Based on an annual budget, macroinvertebrates decrease the efficiency of detritus processing in low-order streams, because they increase transport loss. On a longer time scale, however, macroinvertebrates prevent accumulation of large amounts of detritus in the stream and major losses during infrequent large storms. By stabilizing long-term detritus export dynamics, they provide an important link between low-order and higher-order streams.

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Section: Comparison Of Simulations and Field Datamentioning

confidence: 88%

“…10. Other studies have shown no general trend in FPOM concentration with stream distance (Minshall 1967, Fisher and Likens 1973, Naiman and Sedell 1979a, Cummins et a!. In general, the data support the model's prediction of a downstream increase in FPOM concentration.…”

Section: Comparison Of Simulations and Field Datamentioning

confidence: 88%

The Role of Benthic Macroinvertebrates in Detritus Dynamics of Streams: A Computer Simulation

Webster¹

1983

Ecological Monographs

100

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“…Temperature is a crucial factor that affects both microbial growth and activity and thus plays a very important role in decomposition processes (CUMMINS, 1974;PAUL et al, 1978;HANSON et al, 1984). In many studies it was shown that during warmer seasons decomposition was faster (REICE, 1974;CUMMINS et al, 1981;WEBSTER and BENFIELD, 1986) and studies conducted at localities with different temperatures also demonstrated that decomposition increased with a rise in temperature (e.g. PAUL et al, 1978).…”

Section: Temperaturementioning

confidence: 99%

Decomposition of Two Different POM Types in Surface Water and within Hyporheic Sediments of a Small Lowland Stream(Sitka, Czech Republic)

Rulı́k

Zavřelová

Duchoslav

2001

Internat. Rev. Hydrobiol.

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Two types of particulate organic materials, pure cellulose and alder catkins from common alder (Alnus glutinosa), were used to determine and compare decomposition rates of POM in two zones of a small lowland stream – the surface water and the hyporheic sediments. Generally, decomposition rates of both POM types incubated within the hyporheic sediments were relatively very slow (k = 0.002–0.005 d–1) compared to that in the surface water (k = 0.02 d–1). Breakdown of both POM types was clearly influenced by water temperature. Invertebrates found on samples of both cellulose and alder catkins, incubated within the hyporheic zone, had much lower species richness compared to samples from the surface water. In the surface water, the dominant species on both materials was the amphipod Rivulogammarus roeselii. Hyporheic samples were dominated by chironomid larvae and tubificids.

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“…It seems likely that macroinvertebrate standing crop is usually underestimated. For example, the effect of mesh size used in sampling was shown by Cummins et al (1981 ), with a range of 54-93% of the invertebrates collected falling into the range <500 ~m (and > 75 ~m). However, even a 1 0-fold increase in the low values in the literature (e.g., 0.98;Fisher 1977) would not have changed the trend reported here, namely a small, but significant, quantitative effect of macroinvertebrate assimilation on total detritus standing crop.…”

Section: Macroinvertebrate Utilization Of Detritusmentioning

confidence: 99%

Microbial and Animal Processing of Detritus in a Woodland Stream

Petersen¹,

Cummins²,

Ward³

1989

Ecological Monographs

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100

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The detritus standing crop, microbial respiration, and macroinvertebrate biomass were examined in monthly samples from the riffle sections of a first-order woodland stream. Total detritus was remarkably constant; the average (with 95% cL) ash-free dry mass standing crop was 426.4 ± 85.9 glm 2 over the 14 mo of the study. Throughout the year benthic detritus was dominated by fine particulate detritus ( < 1 mm), which made up 68.9% of the total ash-free dry mass. Woody debris made up 8%, whole leaves 3.5%, and leaffragments and other coarse particulate detritus accounted for 19.7% ofthe total standing crop. Decreases in standing crop were attributable to microbial respiration, macroinvertebrate assimilation, and downstream export. Microbial respiration annually removed 150% of the average standing crop, with the major effect on the smallest particle size category. Macroinvertebrate assimilation, defined as the sum of respiration and growth, removed 11.6% of the detritus standing crop annually. Shredders accounted for 20% of total animal assimilation, with the remaining 80% attributable to collectors and grazers. Based on monthly changes, it appears that total detritus standing crop is the result of the past discharge regime, which determines the overall amount of detritus present, and the rate of biological (microbial and invertebrate) processes, which determine the size and quality ofthe detritus particles. This suggests that detritus in streams, while strongly affected by both biotic and abiotic factors, may be in equilibrium within physical and biological constraints such that an annual steady-state system exists, similar to that for soil systems.

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Trends in particulate organic matter fluxes, community processes and macroinvertebrate functional groups along a Great Lakes Drainage Basin river continuum

Cited by 11 publications

References 16 publications

The Role of Benthic Macroinvertebrates in Detritus Dynamics of Streams: A Computer Simulation

The Role of Benthic Macroinvertebrates in Detritus Dynamics of Streams: A Computer Simulation

Decomposition of Two Different POM Types in Surface Water and within Hyporheic Sediments of a Small Lowland Stream(Sitka, Czech Republic)

Microbial and Animal Processing of Detritus in a Woodland Stream

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