4 Works

Data from: Predicting nitrate retention at the groundwater- surface water interface in sandplain streams

Robert S Stelzer & J. Thad Scott
Groundwater-surface water ecotones present opportunities for nitrate retention because changes in organic carbon availability, redox potential and nitrate demand often occur at these locations. Although there have been many measurements of nitrate retention and denitrification at the groundwater-surface water interface few investigators have quantitatively predicted where nitrogen transformation occurs in this zone. Our main objective was to describe and predict spatial variation in nitrate retention and removal in shallow groundwater among and within streams in...

Data from: Detrital nutrient content and leaf species differentially affect growth and nutritional regulation of detritivores

Halvor M. Halvorson, Chris L. Fuller, Sally A. Entrekin, J. Thad Scott & Michelle A. Evans-White
Resource nutrient content and identity are common bottom-up controls on organismal growth and nutritional regulation. One framework to study these factors, ecological stoichiometry theory, predicts that elevated resource nitrogen (N) and phosphorus (P) contents enhance organism growth by alleviating constraints on N and P acquisition. However, the regulatory mechanisms underlying this response – including whether responses depend on resource identity – remain poorly understood. In this study, we tested roles of detrital N and P...

Data from: Estimating infection prevalence: best practices and their theoretical underpinnings

Ian F. Miller, India Schneider-Crease, Charles L. Nunn & Michael P. Muehlenbein
Accurately estimating infection prevalence is fundamental to the study of population health, disease dynamics, and infection risk factors. Prevalence is estimated as the proportion of infected individuals (“individual-based estimation”), but is also estimated as the proportion of samples from which the disease-causing organisms are recovered (“anonymous estimation”). The latter method is often used when researchers lack information on individual host identity, which can occur during noninvasive sampling of wild populations or when the individual that...

Data from: Spatial, temporal, and experimental: three study design cornerstones for establishing defensible numeric criteria in freshwater ecosystems

Jason M. Taylor, Jeffrey A. Back, Bryan W. Brooks & Ryan S. King
1.Nutrient over‐enrichment increasingly threatens global water resources. Stressor‐response studies specifically designed to identify levels of nutrients strongly associated with undesirable ecological conditions are needed to inform numeric nutrient criteria that protect inland waters. 2.Diatoms are important components of aquatic life, which support higher trophic levels and are sensitive to nutrient enrichment. We tested a framework that relies on stressor‐response modelling of phosphorus (P) enrichment and stream diatom assemblages across many field locations, multiple years and...

Registration Year

  • 2018
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  • Dataset
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Affiliations

  • Baylor University
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  • University of Washington
    1
  • Princeton University
    1
  • Duke University
    1
  • United States Department of Agriculture
    1
  • University of Southern Mississippi
    1
  • University of Central Arkansas
    1
  • University of Arkansas at Fayetteville
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  • Stony Brook University
    1
  • University of Arkansas System
    1