Skip to main content
Advanced Search

Filters: Tags: predictive model (X)

6 results (159ms)   

View Results as: JSON ATOM CSV
thumbnail
Exposure of wildlife to Active Pharmaceutical Ingredients (APIs) is likely to occur but evidence of hazard and risk is limited. One exposure pathway that has received attention is trophic transfer of APIs in a water-fish-osprey food chain. Samples of water, fish plasma and osprey plasma were collected from Delaware River and Bay, and analyzed for 21 APIs. Only 2 of 21 analytes exceeded Method Detection Limits (MDL) in osprey plasma (acetaminophen and diclofenac) with plasma levels typically 2-3 orders of magnitude below human therapeutic concentrations (HTC). We built upon a screening level model used to predict osprey exposure to APIs in Chesapeake Bay and evaluated whether exposure levels could have been predicted...
thumbnail
Ovenbird - VizBand/Land AIC Model Selection Created: 03-Jun-2011 Ovenbird annual capture rate of adult (ADULT) individuals (log transformed) ranged between -0.242 and +2.565 with a mean value of +1.161 and a median value of +1.070. ________________________________________ Model 1 (2 parameters) Ovenbird annual capture rate of adult (ADULT) individuals (log transformed) was a function of: a) NLCD06AF5KP (+0.01197) - percent all forest cover, 990m-resolution in a landscape context of 5km radius, ranged between +8.078 and +113.833 (95% CL) with a mean value of +60.956 and a median value of +69.449, b) GTOPO30_AL (+0.00122) - elevation (m), ranged between -35.468 and +696.689 (95% CL) with a mean value of +330.610 and...
thumbnail
Maple syrup is produced from the sap of sugar maple collected in the late winter and early spring. Native American tribes have collected and boiled down sap for centuries, and the tapping of maple trees is a cultural touchstone for many people in the northeast and Midwest. Because the tapping season is dependent on weather conditions, there is concern about the sustainability of maple sugaring as climate changes throughout the region. Our research addresses the impact of climate on the quantity and quality of maple sap used to make maple syrup. Sap was sampled at 6 sites across the native range of sugar maple over 2 years as part of the ACERnet collaboration. At each site we sampled 15-25 mature sugar maple trees,...
thumbnail
Maple syrup is produced from the sap of sugar maple collected in the late winter and early spring. Native American tribes have collected and boiled down sap for centuries, and the tapping of maple trees is a cultural touchstone for many people in the northeast and Midwest. Because the tapping season is dependent on weather conditions, there is concern about the sustainability of maple sugaring as climate changes throughout the region. Our research addresses the impact of climate on the quantity and quality of maple sap used to make maple syrup. Sap was sampled at 6 sites across the native range of sugar maple over 2 years as part of the ACERnet collaboration. At each site we sampled 15-25 mature sugar maple trees,...
RIVPACS models produce a community-level measure of biological condition known as O/E, which is derived from a comparison of the observed (O) biota with those expected (E) to occur in the absence of anthropogenic stress. We used benthic macroinvertebrate and environmental data collected at 925 stream monitoring stations, from 1993 to 2001, to develop, validate, and apply a RIVPACS model to assess the biological condition of wadeable streams in Wyoming. From this dataset, 296 samples were identified as reference, 157 of which were used to calibrate the model, 46 to validate it, and 93 to examine temporal variability in reference site O/E-values. We used cluster analyses to group the model development reference sites...
thumbnail
Climate change is expected to alter the distributions and community composition of stream fishes in the Great Lakes region in the 21st century, in part as a result of altered hydrological systems (stream temperature, streamflow, and habitat). Resource managers need information and tools to understand where fish species and stream habitats are expected to change under future conditions. Fish sample collections and environmental variables from multiple sources across the United States Great Lakes Basin were integrated and used to develop empirical models to predict fish species occurrence under present-day climate conditions. Random Forests models were used to predict the probability of occurrence of 13 lotic fish...


    map background search result map search result map Ovenbird Adult Captures FishVis, predicted occurrence and vulnerability for 13 fish species for current (1961 - 1990) and future (2046 - 2100) climate conditions in Great Lakes streams Investigation of pharmaceuticals in water, fish, and ospreys nesting in Delaware River and Bay Sap Quantity at Study Sites in the Northeast Sap Quality at Study Sites in the Northeast Investigation of pharmaceuticals in water, fish, and ospreys nesting in Delaware River and Bay Sap Quantity at Study Sites in the Northeast Sap Quality at Study Sites in the Northeast FishVis, predicted occurrence and vulnerability for 13 fish species for current (1961 - 1990) and future (2046 - 2100) climate conditions in Great Lakes streams Ovenbird Adult Captures