General allometric equations for rates of nutrient uptake, ingestion, and respiration in plankton organisms

Moloney, Coleen L.; Field, J. G.

doi:10.4319/lo.1989.34.7.1290

Cited by 180 publications

(117 citation statements)

References 29 publications

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“…Our key assumption is that biological rates scale with metabolic rate [15][16][17][28][29][30][31]. We further assume that nutrients are made available through temperature-dependent biological or chemical processes.…”

Section: Methodsmentioning

confidence: 99%

Evolving ecological networks and the emergence of biodiversity patterns across temperature gradients

2011

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In ectothermic organisms, it is hypothesized that metabolic rates mediate influences of temperature on the ecological and evolutionary processes governing biodiversity. However, it is unclear how and to what extent the influence of temperature on metabolism scales up to shape large-scale diversity patterns. In order to clarify the roles of temperature and metabolism, new theory is needed. Here, we establish such theory and model eco-evolutionary dynamics of trophic networks along a broad temperature gradient. In the model temperature can influence, via metabolism, resource supply, consumers' vital rates and mutation rate. Mutation causes heritable variation in consumer body size, which diversifies and governs consumer function in the ecological network. The model predicts diversity to increase with temperature if resource supply is temperature-dependent, whereas temperature-dependent consumer vital rates cause diversity to decrease with increasing temperature. When combining both thermal dependencies, a unimodal temperature-diversity pattern evolves, which is reinforced by temperature-dependent mutation rate. Studying coexistence criteria for two consumers showed that these outcomes are owing to temperature effects on mutual invasibility and facilitation. Our theory shows how and why metabolism can influence diversity, generates predictions useful for understanding biodiversity gradients and represents an extendable framework that could include factors such as colonization history and niche conservatism.

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Section: Methodsmentioning

confidence: 99%

Evolving ecological networks and the emergence of biodiversity patterns across temperature gradients

2011

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“…Despite their significance, accurate determinations of such rates in general, and size-dependent rates in particular, are difficult. Size-specific estimates of growth and grazing rates have come from laboratory experiments with limited species (Capriulo and Ninivaggi 1982;Monger and Landry 1991;Neuer and Cowles 1995), from syntheses of many such studies (Banse 1976;Hansen et al 1997), or from theory (Moloney andField 1989, 1991;Armstrong 1994;Poulin and Franks 2010). However, very few size-resolved rate data for growth or grazing have been acquired for natural assemblages (but see Marañón 2008).…”

mentioning

confidence: 99%

“…Size also influences how planktonic organisms relate to their hydrodynamic environment (Koehl and Strickler 1981;Monger and Landry 1990), as well as how they partition nutrients (Eppley et al 1969;Moloney and Field 1989), growth (Schlesinger et al 1981;Tang 1995;Nielsen 2006), respiratory losses (Banse 1976;Tang and Peters 1995), and other metabolic processes (Joint and Pomroy 1988;Joint 1991;Gillooly et al 2001) among the coinhabitants and potential competitors in a given environment. An understanding of size-specific processes is, therefore, important for understanding planktonic ecosystem dynamics.…”

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confidence: 99%

Estimating size‐dependent growth and grazing rates and their associated errors using the dilution method

Taniguchi

Franks

Landry

2012

Limnology & Ocean Methods

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Size-dependent properties are pervasive in nature but difficult to measure for natural communities. Here, we develop a technique to estimate size-specific phytoplankton growth and grazing rates based on the two-point dilution method, enhanced by the acquisition of the size spectra of the phytoplankton in the samples. We describe a way to estimate standard deviations associated with the rate estimates, which can be applied either to the size-dependent or total community rates. We tested the accuracy of rates estimated using the size-dependent dilution method by applying it to dilution experiments simulated using a complex size-structured ecosystem model. The strong agreement between model and size-dependent dilution method rates (two-sample Kolmogorov-Smirnov test, P = 1) supports the accuracy of this new technique. Because size-dependent rates vary with the size interval over which they are calculated, we display the size-dependent growth and grazing rates and their standard deviations as a function of the size interval. This technique easily allows the assessment of rates for any size class of interest. Finally, we apply the size-dependent dilution method to data collected in the equatorial Pacific. There is a general agreement between size-based and previously published taxonomic-based rates, with differences reflecting the extent to which size classes are mixtures of taxa. The use of the size-dependent dilution method will provide new insights into the structure and dynamics of planktonic communities. Future applications of this method to other natural communities will help in assessing the size-dependencies of phytoplankton growth and grazing rates in their environments.

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“…Moloney & Field, 1989;Lewis, 1977;Nielsen & Sand-Jensen, 1990;Joint, 1991;Shkundina, 1991;Havlicek & Carpenter, 2001;Finkel et al, 2004). Here we demonstrate changes in biovolume, species composition and related size structure during ecosystem state change.…”

mentioning

confidence: 99%

Modifications in phytoplankton size structure by environmental constraints induced by regime shifts in an urban lake

Dokulil

Donabaum²,

Teubner

2007

Hydrobiologia

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Size related changes of phytoplankton biovolume and species composition have been analysed for forward and reverse regime shifts in a shallow, urban, seepage lake. As a consequence of changes in the hydrology, the pelagic switched from a clear water, macrophyte dominated state to a turbid stable phase with an abundant cyanobacterial population. Experimental nutrient reduction forced the system into a recovery phase. Each state change was associated with significant changes in total biovolume, species composition and size structure affecting surface to volume ratios (S/V). Chlorophyll-a content and S/V drastically increased during the early recovering phase due to small cell sized species developing. As expected, state transitions were associated with significant alterations in size structure and composition.

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General allometric equations for rates of nutrient uptake, ingestion, and respiration in plankton organisms

Cited by 180 publications

References 29 publications

Evolving ecological networks and the emergence of biodiversity patterns across temperature gradients

Evolving ecological networks and the emergence of biodiversity patterns across temperature gradients

Estimating size‐dependent growth and grazing rates and their associated errors using the dilution method

Modifications in phytoplankton size structure by environmental constraints induced by regime shifts in an urban lake

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