Sandra Schultz
Sandy is a Biological Science Technician at the Eastern Ecological Science Center in Laurel, MD.
Sandy spends most of her time performing assays in support of environmental contaminant studies.
Science and Products
Filter Total Items: 22
Legacy and contaminants of emerging concern (CECs) in tree swallows along an agricultural to industrial gradient: Maumee River, OH Legacy and contaminants of emerging concern (CECs) in tree swallows along an agricultural to industrial gradient: Maumee River, OH
Exposure to multiple classes of contaminants, both legacy and contaminants of emerging concern (CECs), were assessed in tree swallow (Tachycineta bicolor) tissue and diet samples from 6 sites along the Maumee River, Ohio, USA, to understand both exposure and possible effects of exposure to those CECs for which there are little avian data. The 6 sites represented a gradient from intensive
Authors
Christine M. Custer, Thomas W. Custer, Paul M. Dummer, Sandra L. Schultz, Chi Yen Tseng, Natalie Karouna-Renier, Cole W. Matson
Arsenic-related oxidative stress in experimentally dosed wild great tit nestlings Arsenic-related oxidative stress in experimentally dosed wild great tit nestlings
Arsenic (As) is broadly distributed due to natural and anthropogenic sources, and it may cause adverse effects in birds. However, research on other elements (Pb, Hg and Cd) has been prioritized, resulting in scarce data on As exposure and related effects in wild birds. One of the mechanisms responsible for As toxicity is oxidative stress. Therefore, the aim of this study was to...
Authors
Pablo Sanchez-Virosta, Silvia Espin, Sandra Ruiz, Bineet Panda, Petteri Ilmonen, Sandra L. Schultz, Natalie Karouna-Renier, Antonio J. Garcia-Fernandez, Tapio Eeva
In ovo exposure to brominated flame retardants Part II: Assessment of effects of TBBPA-BDBPE and BTBPE on hatching success, morphometric and physiological endpoints in American kestrels In ovo exposure to brominated flame retardants Part II: Assessment of effects of TBBPA-BDBPE and BTBPE on hatching success, morphometric and physiological endpoints in American kestrels
Tetrabromobisphenol A bis(2,3-dibromopropyl ether) (TBBPA-BDBPE) and 1,2-bis(2,4,6-tribromophenoxy)ethane (BTPBE) are both brominated flame retardants (BFRs) that have been detected in birds; however, their potential biological effects are largely unknown. We assessed the effects of embryonic exposure to TBBPA-BDBPE and BTBPE in a model avian predator, the American kestrel (Falco...
Authors
Margaret Eng, Natalie Karouna-Renier, Paula F. P. Henry, Robert J. Letcher, Sandra L. Schultz, Thomas G. Bean, Lisa E. Peters, Vince P. Palace, Tony D. Williams, John E. Elliott, Kim J. Fernie
Perfluoroalkyl contaminant exposure in tree swallows nesting at Clarks Marsh, Oscoda, Michigan, USA Perfluoroalkyl contaminant exposure in tree swallows nesting at Clarks Marsh, Oscoda, Michigan, USA
A site in north eastern Michigan, Oscoda Township, has some of the highest recorded exposure in birds to perfluorinated substances (PFASs) in the U.S. Some egg and plasma concentrations at that location exceeded the lowest reproductive effect threshold established for two avian laboratory species. The objectives of this study were to determine whether there were reproductive effects or
Authors
Christine M. Custer, Thomas W. Custer, Robert Delaney, Paul M. Dummer, Sandra L. Schultz, Natalie Karouna-Renier
Toxicokinetics of imidacloprid-coated wheat seeds in Japanese quail (Coturnix japonica) and an evaluation of hazard Toxicokinetics of imidacloprid-coated wheat seeds in Japanese quail (Coturnix japonica) and an evaluation of hazard
Birds are potentially exposed to neonicotinoid insecticides by ingestion of coated seeds during crop planting. Adult male Japanese quail were orally dosed with wheat seeds coated with an imidacloprid (IMI) formulation at either 0.9 mg/kg body weight (BW) or 2.7 mg/kg BW (~3 and 9% of IMI LD50 for Japanese quail, respectively) for 1 or 10 days. Quail were euthanized between 1 and 24 h...
Authors
Thomas G. Bean, Michael S. Gross, Natalie Karouna-Renier, Paula F. P. Henry, Sandra L. Schultz, Michelle L. Hladik, Kathryn Kuivila, Barnett A. Rattner
Biomarker responses of Peromyscus leucopus exposed to lead and cadmium in the Southeast Missouri Lead Mining District Biomarker responses of Peromyscus leucopus exposed to lead and cadmium in the Southeast Missouri Lead Mining District
Biomarker responses and histopathological lesions have been documented in laboratory mammals exposed to elevated concentrations of lead and cadmium. The exposure of white-footed mice (Peromyscus leucopus) to these metals and the potential associated toxic effects were examined at three contaminated sites in the Southeast Missouri Lead Mining District and at a reference site in MO, USA...
Authors
W. Nelson Beyer, Stan W. Casteel, Kristen R. Friedrichs, Eric Gramlich, Ruth A. Houseright, John W. Nichols, Natalie Karouna-Renier, Dae Young Kim, Kathleen Rangen, Barnett A. Rattner, Sandra L. Schultz
Science and Products
Filter Total Items: 22
Legacy and contaminants of emerging concern (CECs) in tree swallows along an agricultural to industrial gradient: Maumee River, OH Legacy and contaminants of emerging concern (CECs) in tree swallows along an agricultural to industrial gradient: Maumee River, OH
Exposure to multiple classes of contaminants, both legacy and contaminants of emerging concern (CECs), were assessed in tree swallow (Tachycineta bicolor) tissue and diet samples from 6 sites along the Maumee River, Ohio, USA, to understand both exposure and possible effects of exposure to those CECs for which there are little avian data. The 6 sites represented a gradient from intensive
Authors
Christine M. Custer, Thomas W. Custer, Paul M. Dummer, Sandra L. Schultz, Chi Yen Tseng, Natalie Karouna-Renier, Cole W. Matson
Arsenic-related oxidative stress in experimentally dosed wild great tit nestlings Arsenic-related oxidative stress in experimentally dosed wild great tit nestlings
Arsenic (As) is broadly distributed due to natural and anthropogenic sources, and it may cause adverse effects in birds. However, research on other elements (Pb, Hg and Cd) has been prioritized, resulting in scarce data on As exposure and related effects in wild birds. One of the mechanisms responsible for As toxicity is oxidative stress. Therefore, the aim of this study was to...
Authors
Pablo Sanchez-Virosta, Silvia Espin, Sandra Ruiz, Bineet Panda, Petteri Ilmonen, Sandra L. Schultz, Natalie Karouna-Renier, Antonio J. Garcia-Fernandez, Tapio Eeva
In ovo exposure to brominated flame retardants Part II: Assessment of effects of TBBPA-BDBPE and BTBPE on hatching success, morphometric and physiological endpoints in American kestrels In ovo exposure to brominated flame retardants Part II: Assessment of effects of TBBPA-BDBPE and BTBPE on hatching success, morphometric and physiological endpoints in American kestrels
Tetrabromobisphenol A bis(2,3-dibromopropyl ether) (TBBPA-BDBPE) and 1,2-bis(2,4,6-tribromophenoxy)ethane (BTPBE) are both brominated flame retardants (BFRs) that have been detected in birds; however, their potential biological effects are largely unknown. We assessed the effects of embryonic exposure to TBBPA-BDBPE and BTBPE in a model avian predator, the American kestrel (Falco...
Authors
Margaret Eng, Natalie Karouna-Renier, Paula F. P. Henry, Robert J. Letcher, Sandra L. Schultz, Thomas G. Bean, Lisa E. Peters, Vince P. Palace, Tony D. Williams, John E. Elliott, Kim J. Fernie
Perfluoroalkyl contaminant exposure in tree swallows nesting at Clarks Marsh, Oscoda, Michigan, USA Perfluoroalkyl contaminant exposure in tree swallows nesting at Clarks Marsh, Oscoda, Michigan, USA
A site in north eastern Michigan, Oscoda Township, has some of the highest recorded exposure in birds to perfluorinated substances (PFASs) in the U.S. Some egg and plasma concentrations at that location exceeded the lowest reproductive effect threshold established for two avian laboratory species. The objectives of this study were to determine whether there were reproductive effects or
Authors
Christine M. Custer, Thomas W. Custer, Robert Delaney, Paul M. Dummer, Sandra L. Schultz, Natalie Karouna-Renier
Toxicokinetics of imidacloprid-coated wheat seeds in Japanese quail (Coturnix japonica) and an evaluation of hazard Toxicokinetics of imidacloprid-coated wheat seeds in Japanese quail (Coturnix japonica) and an evaluation of hazard
Birds are potentially exposed to neonicotinoid insecticides by ingestion of coated seeds during crop planting. Adult male Japanese quail were orally dosed with wheat seeds coated with an imidacloprid (IMI) formulation at either 0.9 mg/kg body weight (BW) or 2.7 mg/kg BW (~3 and 9% of IMI LD50 for Japanese quail, respectively) for 1 or 10 days. Quail were euthanized between 1 and 24 h...
Authors
Thomas G. Bean, Michael S. Gross, Natalie Karouna-Renier, Paula F. P. Henry, Sandra L. Schultz, Michelle L. Hladik, Kathryn Kuivila, Barnett A. Rattner
Biomarker responses of Peromyscus leucopus exposed to lead and cadmium in the Southeast Missouri Lead Mining District Biomarker responses of Peromyscus leucopus exposed to lead and cadmium in the Southeast Missouri Lead Mining District
Biomarker responses and histopathological lesions have been documented in laboratory mammals exposed to elevated concentrations of lead and cadmium. The exposure of white-footed mice (Peromyscus leucopus) to these metals and the potential associated toxic effects were examined at three contaminated sites in the Southeast Missouri Lead Mining District and at a reference site in MO, USA...
Authors
W. Nelson Beyer, Stan W. Casteel, Kristen R. Friedrichs, Eric Gramlich, Ruth A. Houseright, John W. Nichols, Natalie Karouna-Renier, Dae Young Kim, Kathleen Rangen, Barnett A. Rattner, Sandra L. Schultz