JC Nelson
Mississippi River Basin Science Coordinator
Science and Products
Publications
Filter Total Items: 26
Fatty acid composition at the base of aquatic food webs is influenced by habitat type and watershed land use Fatty acid composition at the base of aquatic food webs is influenced by habitat type and watershed land use
Spatial variation in food resources strongly influences many aspects of aquatic consumer ecology. Although large-scale controls over spatial variation in many aspects of food resources are well known, others have received little study. Here we investigated variation in the fatty acid (FA) composition of seston and primary consumers within (i.e., among habitats) and among tributary...
Authors
James H. Larson, William B. Richardson, Brent C. Knights, Lynn Bartsch, Michelle Bartsch, J. C. Nelson, Jason A. Veldboom, Jonathan M. Vallazza
Rivermouth alteration of agricultural impacts on consumer tissue δ15N Rivermouth alteration of agricultural impacts on consumer tissue δ15N
Terrestrial agricultural activities strongly influence riverine nitrogen (N) dynamics, which is reflected in the δ15N of riverine consumer tissues. However, processes within aquatic ecosystems also influence consumer tissue δ15N. As aquatic processes become more important terrestrial inputs may become a weaker predictor of consumer tissue δ15N. In a previous study, this terrestrial...
Authors
James H. Larson, William B. Richardson, Jonathan M. Vallazza, J. C. Nelson
Past and predicted future changes in the land cover of the Upper Mississippi River floodplain, USA Past and predicted future changes in the land cover of the Upper Mississippi River floodplain, USA
This study provides one historical and two alternative future contexts for evaluating land cover modifications within the Upper Mississippi River (UMR) floodplain. Given previously documented changes in land use, river engineering, restoration efforts and hydro-climatic changes within the UMR basin and floodplain, we wanted to know which of these changes are the most important...
Authors
N. R. De Jager, J.J. Rohweder, J.C. Nelson
An exploratory investigation of the landscape-lake interface: Land cover controls over consumer N and C isotopic composition in Lake Michigan rivermouths An exploratory investigation of the landscape-lake interface: Land cover controls over consumer N and C isotopic composition in Lake Michigan rivermouths
Rivermouth ecosystems are areas where tributary waters mix with lentic near-shore waters and provide habitat for many Laurentian Great Lakes fish and wildlife species. Rivermouths are the interface between terrestrial activities that influence rivers and the ecologically important nearshore. Stable isotopes of nitrogen (N) and carbon (C) in consumers were measured from a range of...
Authors
James H. Larson, William B. Richardson, Jonathan M. Vallazza, J. C. Nelson
USGS bird and land-cover data: Regional bird conservation internet mapping tool takes flight with GIS USGS bird and land-cover data: Regional bird conservation internet mapping tool takes flight with GIS
No abstract available.
Authors
J.C. Nelson, M.G. Fox, M. G. Knutson, J.R. Sauer, W.E. Thogmartin
Geologic map of the Silver Cloud mine, Elko County, Nevada Geologic map of the Silver Cloud mine, Elko County, Nevada
No abstract available.
Authors
John M. Nelson, Doak C. Cox
Data Management
Technology
Science and Products
Publications
Filter Total Items: 26
Fatty acid composition at the base of aquatic food webs is influenced by habitat type and watershed land use Fatty acid composition at the base of aquatic food webs is influenced by habitat type and watershed land use
Spatial variation in food resources strongly influences many aspects of aquatic consumer ecology. Although large-scale controls over spatial variation in many aspects of food resources are well known, others have received little study. Here we investigated variation in the fatty acid (FA) composition of seston and primary consumers within (i.e., among habitats) and among tributary...
Authors
James H. Larson, William B. Richardson, Brent C. Knights, Lynn Bartsch, Michelle Bartsch, J. C. Nelson, Jason A. Veldboom, Jonathan M. Vallazza
Rivermouth alteration of agricultural impacts on consumer tissue δ15N Rivermouth alteration of agricultural impacts on consumer tissue δ15N
Terrestrial agricultural activities strongly influence riverine nitrogen (N) dynamics, which is reflected in the δ15N of riverine consumer tissues. However, processes within aquatic ecosystems also influence consumer tissue δ15N. As aquatic processes become more important terrestrial inputs may become a weaker predictor of consumer tissue δ15N. In a previous study, this terrestrial...
Authors
James H. Larson, William B. Richardson, Jonathan M. Vallazza, J. C. Nelson
Past and predicted future changes in the land cover of the Upper Mississippi River floodplain, USA Past and predicted future changes in the land cover of the Upper Mississippi River floodplain, USA
This study provides one historical and two alternative future contexts for evaluating land cover modifications within the Upper Mississippi River (UMR) floodplain. Given previously documented changes in land use, river engineering, restoration efforts and hydro-climatic changes within the UMR basin and floodplain, we wanted to know which of these changes are the most important...
Authors
N. R. De Jager, J.J. Rohweder, J.C. Nelson
An exploratory investigation of the landscape-lake interface: Land cover controls over consumer N and C isotopic composition in Lake Michigan rivermouths An exploratory investigation of the landscape-lake interface: Land cover controls over consumer N and C isotopic composition in Lake Michigan rivermouths
Rivermouth ecosystems are areas where tributary waters mix with lentic near-shore waters and provide habitat for many Laurentian Great Lakes fish and wildlife species. Rivermouths are the interface between terrestrial activities that influence rivers and the ecologically important nearshore. Stable isotopes of nitrogen (N) and carbon (C) in consumers were measured from a range of...
Authors
James H. Larson, William B. Richardson, Jonathan M. Vallazza, J. C. Nelson
USGS bird and land-cover data: Regional bird conservation internet mapping tool takes flight with GIS USGS bird and land-cover data: Regional bird conservation internet mapping tool takes flight with GIS
No abstract available.
Authors
J.C. Nelson, M.G. Fox, M. G. Knutson, J.R. Sauer, W.E. Thogmartin
Geologic map of the Silver Cloud mine, Elko County, Nevada Geologic map of the Silver Cloud mine, Elko County, Nevada
No abstract available.
Authors
John M. Nelson, Doak C. Cox
Data Management
Technology