Fitting a model of tritium uptake by honey bees to data

White, Gary C.; Hakonson, T. E.; Bostick, K.V.

doi:10.1016/0304-3800(83)90016-9

Cited by 7 publications

(4 citation statements)

References 3 publications

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“…These contaminants often become incorporated into the bee tissue, the wax, the honey, or the hive itself (Wallwork-Barber et al, 1982). Honey bee studies have been conducted on many different types of pollutants including fluoride (Bromenshenk et al, 1988a;Mayer et al, 1988), Pb (Migula et al, 1989), Zn (Bromenshenk et al, 1988b), Ni (Balestra et al, 1992), K (Barbattini et al, 1991), and a variety of radionuclides (Hakonson and Bostick 1976;White et al, 1983;Bettoli et al, 1987;Tonelli et al, 1990;Fresquez et al, 1997).…”

Section: As Part Of Ongoing Studies For the Mitigation Action Plan Fomentioning

confidence: 99%

Concentrations of Radionuclides and Trace Elements in Environmantal Media arond te Dual-Axis Radiographic Hydrodynamic Test Facilit at Los Alamos National Laboratory during 2005

Gonzales¹,

Fresquez²,

Hathcock³

et al. 2006

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Section: As Part Of Ongoing Studies For the Mitigation Action Plan Fomentioning

confidence: 99%

Concentrations of Radionuclides and Trace Elements in Environmantal Media arond te Dual-Axis Radiographic Hydrodynamic Test Facilit at Los Alamos National Laboratory during 2005

Gonzales¹,

Fresquez²,

Hathcock³

et al. 2006

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“…C 1 , a, and kbT) in predicting the model output values, by comparing the R 2 values of "Reduced" models (with these parameter groups omitted as predictors of model output) to the R 2 values of "Full" models containing all model parameters (White et al 1983). C 1 , a, and kbT) in predicting the model output values, by comparing the R 2 values of "Reduced" models (with these parameter groups omitted as predictors of model output) to the R 2 values of "Full" models containing all model parameters (White et al 1983).…”

Section: Model Sensitivity Analysesmentioning

confidence: 99%

“…We also assessed the collective significance of groups of related model parameters (Tw,, rnf. C 1 , a, and kbT) in predicting the model output values, by comparing the R 2 values of "Reduced" models (with these parameter groups omitted as predictors of model output) to the R 2 values of "Full" models containing all model parameters (White et al 1983). We tested two different "Full" models.…”

Section: Model Sensitivity Analysesmentioning

confidence: 99%

Environmental Influences on the ¹³⁷Cs Kinetics of the Yellow‐Bellied Turtle (Trachemys Scripta)

Peters¹,

Brisbin²

1996

Ecological Monographs

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Assessments of ecological risk require accurate predictions of contaminant dynamics in natural populations. However, simple deterministic models that assume constant uptake rates and elimination fractions may compromise both their ecological realism and their general application to animals with variable metabolisms or diets. In particular, the temperature-dependent metabolic rates characteristic of ectotherms may lead to significant differences between observed and predicted contaminant kinetics. We examined the influence of a seasonally variable thermal environment on predicting the uptake and annual cycling of contaminants by ectotherms, using a temperature-dependent model of 137 Cs kinetics in free-living yellow-bellied turtles, Trachemys scripta. We compared predictions from this model with those of deterministic negative exponential and flexibly shaped Richards sigmoidal models. Concentrations of 137 Cs in a population of this species in Pond B, a radionuclide-contaminated nuclear reactor cooling reservoir, and 137 Cs uptake by uncontaminated turtles held captive in Pond B for 4 yr confirmed both the pattern of uptake and the equilibrium concentrations predicted by the temperature-dependent model. Almost 90% of the variance in the predicted time-integrated 137 Cs concentration was explainable by linear relationships with model parameters. The model was also relatively insensitive to uncertainties in the estimates of ambient temperature, suggesting that adequate estimates of temperature-dependent ingestion and elimination may require relatively few measurements of ambient conditions at sites of interest. Analyses of Richards sigmoidal models of 137 Cs uptake indicated significant differences from a negative exponential trajectory in the 1st yr after the turtles' release into Pond B. We also observed significant annual cycling of 137 Cs concentrations, apparently due to temperature-dependent metabolism and its influence on ingestion and elimination rates. However, equilibrium concentrations of the radionuclide in the wild population were predictable from negative exponential models based on average annual temperature and its effects on intake and elimination rates, also suggesting that predicting ectotherm responses to long-lived contaminants (such as 137 Cs) may be possible without complex ecophysiological modeling.

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“…During these foraging flights, in which they collect nectar, pollen, plant resins, and water, bees inadvertently contact and accumulate a wide array of pollutants that are often returned to the colony (Crane 1984;Bromenshenk et al 1985). Honey bee studies have been conducted on many different types of pollutants including fluoride (Bromenshenk et al 1988a;Mayer et al 1988), lead (Migula et al 1989), zinc (Bromenshenk et al 1988b), nickel (Balestra et al 1992), potassium (Barbattini et al 1991), cesium (Bettoli et al 1987Tonelli et al 1990), tritium (Wallwork-Barber et al 1982;White et al 1983;Fresquez et al 1997), plutonium (Hakonson and Bostick 1976), uranium (Gladney et al 1983), and cobalt (Haarmann 1997).…”

mentioning

confidence: 96%

Honey Bees as Indicators of Radionuclide Contamination: Comparative Studies of Contaminant Levels in Forager and Nurse Bees and in the Flowers of Three Plant Species

Haarmann

1998

Archives of Environmental Contamination and Toxicology

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Two separate field experiments were conducted as part of ongoing research concerning the use of honey bees (Apis mellifera) as indicators of environmental radionuclide contamination. The experiments were conducted in a study site containing radionuclide contamination above background levels. The first experiment compared levels of radionuclides found in forager bees to levels found in nurse bees. Bees were collected from colonies, analyzed for concentrations of radionuclides, and the results were compared using statistical methods. Results indicated that there is no significant difference between the contaminant levels in forager and nurse bees. A second experiment compared the levels of radionuclides found in the flowers of three plant species growing in the study site: salt cedar (Tamarix ramosissima), white sweet clover (Melilotus albus), and rabbit brush (Chrysothamnus nauseosus). Results indicated that there is no significant difference in the amounts of radionuclides found in the flowers of these three plants.

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Fitting a model of tritium uptake by honey bees to data

Cited by 7 publications

References 3 publications

Concentrations of Radionuclides and Trace Elements in Environmantal Media arond te Dual-Axis Radiographic Hydrodynamic Test Facilit at Los Alamos National Laboratory during 2005

Concentrations of Radionuclides and Trace Elements in Environmantal Media arond te Dual-Axis Radiographic Hydrodynamic Test Facilit at Los Alamos National Laboratory during 2005

Environmental Influences on the ¹³⁷Cs Kinetics of the Yellow‐Bellied Turtle (Trachemys Scripta)

Honey Bees as Indicators of Radionuclide Contamination: Comparative Studies of Contaminant Levels in Forager and Nurse Bees and in the Flowers of Three Plant Species

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Fitting a model of tritium uptake by honey bees to data

Cited by 7 publications

References 3 publications

Concentrations of Radionuclides and Trace Elements in Environmantal Media arond te Dual-Axis Radiographic Hydrodynamic Test Facilit at Los Alamos National Laboratory during 2005

Concentrations of Radionuclides and Trace Elements in Environmantal Media arond te Dual-Axis Radiographic Hydrodynamic Test Facilit at Los Alamos National Laboratory during 2005

Environmental Influences on the 137Cs Kinetics of the Yellow‐Bellied Turtle (Trachemys Scripta)

Honey Bees as Indicators of Radionuclide Contamination: Comparative Studies of Contaminant Levels in Forager and Nurse Bees and in the Flowers of Three Plant Species

Contact Info

Product

Resources

About

Environmental Influences on the ¹³⁷Cs Kinetics of the Yellow‐Bellied Turtle (Trachemys Scripta)