Community Metabolism in a Temperate Cold Spring

Teal, John M.

doi:10.2307/1942187

Cited by 271 publications

(145 citation statements)

References 15 publications

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“…Ca,ntribution 32 from the CAMREX proiect and 1824 from the School of Oceanography, University of Washingt0, budget approach (Odum 1957;Teal 1957) riverine research has focused on measuring the origin, amount, and form of organic matter that enters a stream segment, the groups of organisms that selectively process this material, and the material that is ultimately exported via oxidation and downriver transport (e.g. Fisher and Likens 1973;Hynes 1975;Minshall et #al.…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…1983;Cummins et al 1983;Elwood et al 1983). Changes in chemical and biological processes along a river network have been viewed as a continuously integrated series of adjustments to the physical constraints imposed by fluvial geomorphology (Vannote et al 1980;Statzner and Higler 1985). Although intended to be universal, these approaches have been developed primarily for unperturbed, temperate streams of sixth order or less.…”

Section: Acknowledgmentsmentioning

confidence: 99%

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Biogeochemistry of carbon in the Amazon River

Richey

Hedges

Devol

et al. 1990

Limnology & Oceanography

380

301

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Depth-integrated, discharge-weighted water samples were collected over 1,800km ofthe Amazon River on eight cruises at different stages of the hydrograph, 1982-1984 and coarse (CPOC, > 63 rm) particulate organic carbon as weight percentage of suspended sediment varied between 0.9-1.5% for FPOC and 0.5-3.49/o for CPOC. Concentrations of FPOC ranged from 5 mg liter-' upriver to 2 mg liter-' downriver in the mainstem and from 6 mg liter-' inthe Rio Madeira to i 1 in the Rio Negro. CPOC had similar distribution patterns. but with concentrations 15.-30% those of FPOC. Dissolved organic carbon (DOC) averaged 4-6 mg liter-r in the mainstem and up to 12 ml; liter -I in the Rio Negro. Upriver dissolved inorganic carbon (DIC) concentrations of about 1,200 @LM were diluted by tributaries and floodplain drainage to 600 PM at the most downriver site. Evasion ofCO,, invasion of O,, and in situ oxidation were of comparable magnitude, 3-8 pmol m-2 s-r.The average export of total organic carbon (TOC) was 36.1 Tg yr-i (8.5 g m-2 yr-I), of which 62% was DOC, 34% was FPOC, and 4% was CPOC. TOC inputs were insufficient to support in situ oxidation by a factor of at least two. A relatively small, rapidly cycling pool of labile organic matter may coexist with a much larger pool of more refractory material.A central problem in riverine ecology is to determine how the dynamics of carbon vary as flowing waters increase in size from first-order springs and seeps to the world's great rivers. With the advent of the energy r To whom correspondence should be addressed.

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Section: Acknowledgmentsmentioning

confidence: 99%

Section: Acknowledgmentsmentioning

confidence: 99%

Biogeochemistry of carbon in the Amazon River

Richey

Hedges

Devol

et al. 1990

Limnology & Oceanography

380

301

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“…Some recent stream studies have, however, focused on functional aspects of running water ecosystems (Teal 1957;Nelson and Scott 1962;Minshall 1967;Tilly 1968;Hall 1972;Fisher andLikens 1972, 1973;Boling et al 1974;Fisher 1977). Out of these studies has emerged a consistent picture of headwater streams (1st to 3rd order, Strahler 1957) as processors of organic matter synthesized in riparian ecosystems ).…”

Section: Introductionmentioning

confidence: 99%

Effects of Watershed Perturbation on Stream Potassium and Calcium Dynamics

Webster¹,

Patten²

1979

Ecological Monographs

344

202

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Abstract. Three small streams located at Coweeta Hydrologic Laboratory, North Carolina, USA, on an old field watershed, a pine plantation watershed, and a hardwood forest watershed were investigated to determine effects of watershed perturbation on K and Ca dynamics in the stream ecosystems. Data collected included measurements of litterfall inputs, large particulate organic matter and benthic organism standing crops, large particulate organic matter and organism drift, and insect emergence. We used Cs to estimate detritivore ingestion and elimination rates of Ca and K, respectively.We found that watershed perturbations had altered stream inputs and caused accompanying changes in the stream fauna. Our results indicated that the perturbed streams had less efficient physical processing of allochthonous inputs, but greater biological utilization of inputs. The streams exhibited high resilience to perturbation with complete recovery limited by the recovery rate of allochthonous inputs.

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“…Springs are especially useful for making such a test because their physicochemical stability, typically small size, and relatively discrete boundaries make them highly amenable to studies of foodweb structure and energy flow at the ecosystem level. As a result, some of these studies have become well known classics that are often featured in ecology and biology textbooks or anthologies (e.g., Odum 1957, Teal 1957, Tilly 1968). In addition, springs exhibit both low variation in temperature within sites and high variation in temperature among sites.…”

mentioning

confidence: 99%

Effect of Temperature and Intraspecific Allometry on Predation by Two Phenotypes of <I>Harmonia axyridis</I> Pallas (Coleoptera: Coccinellidae)

Soares

Coderre

Schanderl

2003

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Abstract. I assessed effects of the widest range of temperatures ever examined on maximal food-chain length (L) and macroinvertebrate species richness (S) by a worldwide comparison of spring ecosystems with mean water temperatures (T) ranging from 4.5 to 93uC. Eukaryotic L averaged ,3.2 and varied independently of T between 4.5 and 31uC. However, over the relatively narrow T range of 35 to 50uC, L dropped abruptly to 0 and remained so up to 91uC. The negatively nonlinear relationships of L vs T and macroinvertebrate S vs T both deviated from predictions based upon metabolic theory, and the negative effect of T on S contrasted with positive relationships observed at larger regional scales. Thermal tolerance limits apparently play a major role in causing these relationships, but other factors also may be involved (e.g., availability of colonists adapted to different temperatures and temperature-dependent rates of resource use and species interactions that affect population establishment and persistence).

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Community Metabolism in a Temperate Cold Spring

Cited by 271 publications

References 15 publications

Biogeochemistry of carbon in the Amazon River

Biogeochemistry of carbon in the Amazon River

Effects of Watershed Perturbation on Stream Potassium and Calcium Dynamics

Effect of Temperature and Intraspecific Allometry on Predation by Two Phenotypes of <I>Harmonia axyridis</I> Pallas (Coleoptera: Coccinellidae)

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