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Nicole M. DeCrappeo, Ph.D. (Former Employee)

Science and Products

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Five mule deer stare at the camera as they stand in a field of dry sagebrush

Contributions to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy

USGS scientists are contributing to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy, a strategy intended to provide guidance so that efforts to conserve the iconic greater sage-grouse can be expanded to the entire sagebrush biome to benefit the people and wildlife that depend on it.
By
Ecosystems Mission Area, Land Management Research Program, Earth Resources Observation and Science (EROS) Center , Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center, Southwest Biological Science Center, Western Ecological Research Center (WERC)
link

Contributions to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy

USGS scientists are contributing to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy, a strategy intended to provide guidance so that efforts to conserve the iconic greater sage-grouse can be expanded to the entire sagebrush biome to benefit the people and wildlife that depend on it.
Learn More

Nitrogen cycling rates from sagebrush and cheatgrass-invaded soils in the Northern Great Basin (2008)

This dataset contains data supporting the paper: DeCrappeo, N.M., DeLorenze, E.J., Giguere, A.T., Pyke, D.A., and Bottomley, P.J. Fungal and bacterial contributions to nitrogen cycling in cheatgrass-invaded and uninvaded native sagebrush soils of the western USA (accepted at the journal Plant and Soil). The purpose of the study was to evaluate the relative contributions of soil bacteria...
By
Land Management Research Program, Forest and Rangeland Ecosystem Science Center
Filter Total Items: 14

U.S. Geological Survey climate science plan—Future research directions

Executive Summary Climate is the primary driver of environmental change and is a key consideration in defining science priorities conducted across all mission areas in the U.S. Geological Survey (USGS). Recognizing the importance of climate change to its future research agenda, the USGS’s Climate Science Steering Committee requested the development of a Climate Science Plan to identify...
Authors
Tamara Wilson, Ryan P. Boyles, Nicole DeCrappeo, Judith Z. Drexler, Kevin Kroeger, Rachel A. Loehman, John M. Pearce, Mark P. Waldrop, Peter D. Warwick, Anne Wein, Sara Lynn Zeigler, T. Douglas Beard,
By
Ecosystems Mission Area, Water Resources Mission Area, Climate Adaptation Science Centers, Ecosystems Land Change Science Program, Energy Resources Program, Volcano Hazards Program, Alaska Science Center, California Water Science Center, Forest and Rangeland Ecosystem Science Center, Geology, Energy & Minerals Science Center, Volcano Science Center, Western Geographic Science Center, Woods Hole Coastal and Marine Science Center

Fungal and bacterial contributions to nitrogen cycling in cheatgrass-invaded and uninvaded native sagebrush soils of the western USA

AimThere is interest in determining how cheatgrass (Bromus tectorum L.) modifies N cycling in sagebrush (Artemisia tridentata Nutt.) soils of the western USA.MethodsTo gain insight into the roles of fungi and bacteria in N cycling of cheatgrass-invaded and uninvaded sagebrush soils, the fungal protein synthesis inhibitor, cycloheximide (CHX), and the bacteriocidal compound, bronopol (BRO...
Authors
Nicole DeCrappeo, Elizabeth J. DeLorenze, Andrew T Giguere, David Pyke, Peter J. Bottomley
By
Ecosystems Mission Area, Land Management Research Program, Forest and Rangeland Ecosystem Science Center

The integrated rangeland fire management strategy actionable science plan

The Integrated Rangeland Fire Management Strategy (hereafter Strategy, DOI 2015) outlined the need for coordinated, science-based adaptive management to achieve long-term protection, conservation, and restoration of the sagebrush (Artemisia spp.) ecosystem. A key component of this management approach is the identification of knowledge gaps that limit implementation of effective...
Authors
Cameron L. Aldridge, Ken Berg, Chad S. Boyd, Stephen P. Boyte, John Bradford, Ed Brunson, John H. Cissel, Courtney J. Conway, Anna D. Chalfoun, Jeanne C. Chambers, Patrick Clark, Peter S. Coates, Michele R. Crist, Dawn M. Davis, Nicole DeCrappeo, Patricia A. Deibert, Kevin Doherty, Louisa B. Evers, Deborah M. Finch, Sean P. Finn, Matthew Germino, Nancy F. Glenn, Corey Gucker, John D. Hall, Steve E. Hanser, Douglas W. Havlina, Julie A. Heinrichs, Matt Heller, Collin Homer, Molly E. Hunter, Ruth W. Jacobs, Jason W. Karl, Richard Kearney, Susan K Kemp, Francis F. Kilkenny, Steven T. Knick, Karen Launchbaugh, Daniel J. Manier, Kenneth F. Mayer, Susan E. Meyer, Adrian Pierre-Frederic Monroe, Eugénie MontBlanc, Beth A. Newingham, Michael L. Pellant, Sue Phillips, David S. Pilliod, Mark A. Ricca, Bryce Richardson, Jeffrey A. Rose, Nancy Shaw, Roger L. Sheley, Douglas J. Shinneman, Lief A. Wiechman, Bruce Wylie
By
Ecosystems Mission Area, Land Management Research Program

Plant diversity predicts beta but not alpha diversity of soil microbes across grasslands worldwide

Aboveground–belowground interactions exert critical controls on the composition and function of terrestrial ecosystems, yet the fundamental relationships between plant diversity and soil microbial diversity remain elusive. Theory predicts predominantly positive associations but tests within single sites have shown variable relationships, and associations between plant and microbial...
Authors
Suzanne M. Prober, Jonathan W. Leff, Scott T. Bates, Elizabeth T. Borer, Jennifer Firn, W.S. Harpole, Eric M. Lind, Eric W. Seabloom, Peter H. Adler, Jonathan D. Bakker, Elsa E. Cleland, Nicole DeCrappeo, Elizabeth J. DeLorenze, Nicole Hagenah, Yann Hautier, Kirsten S. Hofmockel, Kevin P. Kirkman, Johannes MH Knops, Kimberly J. La Pierre, Andrew S. MacDougall, Rebecca L. McCulley, Charles M. Mitchell, Anita C. Risch, Martin Schuetz, Carly J. Stevens, Ryan J. Williams, Noah Fierer
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Herbivores and nutrients control grassland plant diversity via light limitation

Human alterations to nutrient cycles and herbivore communities are affecting global biodiversity dramatically. Ecological theory predicts these changes should be strongly counteractive: nutrient addition drives plant species loss through intensified competition for light, whereas herbivores prevent competitive exclusion by increasing ground-level light, particularly in productive systems...
Authors
Elizabeth T. Borer, Eric W. Seabloom, Daniel S. Gruner, W.S. Harpole, Helmut Hillebrand, Eric M. Lind, Peter B. Alder, Juan Alberti, T. W. Anderson, Jonathan D. Bakker, Lori A. Biederman, Dana M. Blumenthal, Cynthia L. Brown, Lars A. Brudvig, Yvonne Buckley, Marc W. Cadotte, Cheng-Jin Chu, Elsa E. Cleland, Michael J. Crawley, Pedro Daleo, Ellen Ingman Damschen, Kendi F. Davies, Nicole DeCrappeo, Guozhen Du, Jennifer Firn, Yann Hautier, Robert W. Heckman, Andy Hector, Janneke HilleRisLambers, Oscar Iribarne, Julia A. Klein, Johannes MH Knops, Kimberly J. La Pierre, Andrew D.B. Leakey, Wei Li, Andrew S. MacDougall, Rebecca L. McCulley, Brett A Melbourne, Charles M. Mitchell, Joslin L. Moore, Brent Mortensen, Lydia R. O'Halloran, John L. Orrock, Jesús Pascual, Suzanne M. Prober, David Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Ryan J. Williams, Peter D. Wragg, Justin P. Wright, Louie H. Yang
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Forest and Rangeland Ecosystem Science Center

Soil-plant-microbial relations in hydrothermally altered soils of Northern California

Soils developed on relict hydrothermally altered soils throughout the Western USA present unique opportunities to study the role of geology on above and belowground biotic activity and composition. Soil and vegetation samples were taken at three unaltered andesite and three hydrothermally altered (acid-sulfate) sites located in and around Lassen VolcanicNational Park in northeastern...
Authors
S.W. Blecker, L.L. Stillings, Nicole DeCrappeo, J.A. Ippolito
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Forest and Rangeland Ecosystem Science Center

Predicting invasion in grassland ecosystems: Is exotic dominance the real embarrassment of richness?

Invasions have increased the size of regional species pools, but are typically assumed to reduce native diversity. However, global-scale tests of this assumption have been elusive because of the focus on exotic species richness, rather than relative abundance. This is problematic because low invader richness can indicate invasion resistance by the native community or, alternatively...
Authors
Eric W. Seabloom, Elizabeth T. Borer, Yvonne Buckley, Elsa E. Cleland, Kendi F. Davies, Jennifer Firn, W.S. Harpole, Yann Hautier, Eric M. Lind, Andrew S. MacDougall, John L. Orrock, Suzanne M. Prober, Peter H. Adler, Juan Alberti, T. W. Anderson, Jonathan D. Bakker, Lori A. Biederman, Dana M. Blumenthal, Cynthia L. Brown, Lars A. Brudvig, Maria Caldeira, Cheng-Jin Chu, Michael J. Crawley, Pedro Daleo, Ellen Ingman Damschen, Carla M. D'Antonio, Nicole DeCrappeo, Chris R. Dickman, Guozhen Du, Philip A. Fay, Paul N. Frater, Daniel S. Gruner, Nicole Hagenah, Andrew Hector, Aveliina Helm, Helmut Hillebrand, Kirsten S. Hofmockel, Hope C. Humphries, Oscar Iribarne, Virginia L. Jin, Adam D. Kay, Kevin P. Kirkman, Julia A. Klein, Johannes MH Knops, Kimberly J. La Pierre, Laura M. Ladwig, G. John, Andrew D.B. Leakey, Qi Li, Wei Li, Rebecca L. McCulley, Brett A Melbourne, E. G. Charles, Joslin L. Moore, John W. Morgan, Brent Mortensen, Lydia R. O'Halloran, Meelis Partel, Jesús Pascual, David Pyke, Anita C. Risch, Roberto Salguero-Gómez, Mahesh Sankaran, Martin Schuetz, Anna Simonsen, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Glenda M Wardle, Elizabeth M. Wolkovich, Peter D. Wragg, Justin P. Wright, Louie H. Yang
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Development and application of a soil organic matter-based soil quality index in mineralized terrane of the Western US

Soil quality indices provide a means of distilling large amounts of data into a single metric that evaluates the soil’s ability to carry out key ecosystem functions. Primarily developed in agroecosytems, then forested ecosystems, an index using the relation between soil organic matter and other key soil properties in more semi-arid systems of the Western US impacted by different geologic...
Authors
S.W. Blecker, Lisa L. Stillings, Michael C. Amacher, J.A. Ippolito, Nicole DeCrappeo
By
Energy and Mineral Resources Mission Area, Ecosystems Mission Area, Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Forest and Rangeland Ecosystem Science Center

Regional contingencies in the relationship between aboveground Bbomass and litter in the world’s grasslands

Based on regional-scale studies, aboveground production and litter decomposition are thought to positively covary, because they are driven by shared biotic and climatic factors. Until now we have been unable to test whether production and decomposition are generally coupled across climatically dissimilar regions, because we lacked replicated data collected within a single vegetation type...
Authors
Lydia R. O'Halloran, Elizabeth T. Borer, Eric W. Seabloom, Andrew S. MacDougall, Elsa E. Cleland, Rebecca L. McCulley, Sarah E Hobbie, W.S. Harpole, Nicole DeCrappeo, Cheng-Jin Chu, Jonathan D. Bakker, Kendi F. Davies, Guozhen Du, Jennifer Firn, Nicole Hagenah, Kirsten S. Hofmockel, Johannes MH Knops, Wei Li, Brett A Melbourne, John W. Morgan, John L. Orrock, Suzanne M. Prober, Carly J. Stevens
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Nitrogen limitation, 15N tracer retention, and growth response in intact and Bromus tectorum-invaded Artemisia tridentata ssp. wyomingensis communities

Annual grass invasion into shrub-dominated ecosystems is associated with changes in nutrient cycling that may alter nitrogen (N) limitation and retention. Carbon (C) applications that reduce plant-available N have been suggested to give native perennial vegetation a competitive advantage over exotic annual grasses, but plant community and N retention responses to C addition remain poorly...
Authors
Dana L. Witwicki, Paul S. Doescher, David Pyke, Nicole DeCrappeo, Steven Perakis
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Response to comments on "Productivity is a poor predictor of plant species richness"

Pan et al. claim that our results actually support a strong linear positive relationship between productivity and richness, whereas Fridley et al. contend that the data support a strong humped relationship. These responses illustrate how preoccupation with bivariate patterns distracts from a deeper understanding of the multivariate mechanisms that control these important ecosystem...
Authors
James B. Grace, Peter H. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W.S. Harpole, Lydia R. O'Halloran, T. W. Anderson, Jonathan D. Bakker, Cynthia L. Brown, Yvonne Buckley, Scott M. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole DeCrappeo, Philip A. Fay, Jennifer Firn, Daniel S. Gruner, Nicole Hagenah, Virginia L. Jin, Kevin P. Kirkman, Johannes MH Knops, Kimberly J. La Pierre, John G. Lambrinos, Brett A Melbourne, Charles M. Mitchell, Joslin L. Moore, John W. Morgan, John L. Orrock, Suzanne M. Prover, Carly J. Stevens, Peter D. Wragg, Louie H. Yang
By
Ecosystems Mission Area, Wetland and Aquatic Research Center

Productivity is a poor predictor of plant species richness

For more than 30 years, the relationship between net primary productivity and species richness has generated intense debate in ecology about the processes regulating local diversity. The original view, which is still widely accepted, holds that the relationship is hump-shaped, with richness first rising and then declining with increasing productivity. Although recent meta-analyses...
Authors
Peter H. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W.S. Harpole, Lydia R. O'Halloran, James B. Grace, T. W. Anderson, Jonathan D. Bakker, Lori A. Biederman, Cynthia L. Brown, Yvonne Buckley, Laura B. Calabrese, Cheng-Jin Chu, Elsa E. Cleland, Scott M. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole DeCrappeo, Philip A. Fay, Jennifer Firn, Paul N. Frater, Eve I. Gasarch, Daneil S. Gruner, Nicole Hagenah, Janneke Hille Ris Lambers, Hope C. Humphries, Virginia L. Jin, Adam D. Kay, Kevin P. Kirkman, Julia A. Klein, Johannes MH Knops, Kimberly J. La Pierre, John G. Lambrinos, Wei Li, Andrew S. MacDougall, Rebecca L. McCulley, Brett A Melbourne, Charles M. Mitchell, Joslin L. Moore, John W. Morgan, Brent Mortensen, John L. Orrock, Suzanne M. Prober, David Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Gang Wang, Peter D. Wragg, Justin P. Wright, Louie H. Yang
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center, Wetland and Aquatic Research Center
USGS Announces Expanded Consortiums for Alaska, Northwest, and Southeast Climate Adaptation Science Centers

USGS Announces Expanded Consortiums for Alaska, Northwest, and Southeast Climate Adaptation Science Centers

For the next five-years, USGS will partner with an expanded group of universities, Tribal colleges, and Tribal organizations to provide science that...

Read Article
Northwest CASC Welcomes USGS CASC Director Nicole DeCrappeo!

Northwest CASC Welcomes USGS CASC Director Nicole DeCrappeo!

The Northwest Climate Adaptation Science Center (NW CASC) is thrilled to welcome Nicole DeCrappeo as their U.S. Geological Survey (USGS) CASC Director...

Read Article

Science and Products

link
Five mule deer stare at the camera as they stand in a field of dry sagebrush

Contributions to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy

USGS scientists are contributing to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy, a strategy intended to provide guidance so that efforts to conserve the iconic greater sage-grouse can be expanded to the entire sagebrush biome to benefit the people and wildlife that depend on it.
By
Ecosystems Mission Area, Land Management Research Program, Earth Resources Observation and Science (EROS) Center , Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center, Southwest Biological Science Center, Western Ecological Research Center (WERC)
link

Contributions to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy

USGS scientists are contributing to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy, a strategy intended to provide guidance so that efforts to conserve the iconic greater sage-grouse can be expanded to the entire sagebrush biome to benefit the people and wildlife that depend on it.
Learn More

Nitrogen cycling rates from sagebrush and cheatgrass-invaded soils in the Northern Great Basin (2008)

This dataset contains data supporting the paper: DeCrappeo, N.M., DeLorenze, E.J., Giguere, A.T., Pyke, D.A., and Bottomley, P.J. Fungal and bacterial contributions to nitrogen cycling in cheatgrass-invaded and uninvaded native sagebrush soils of the western USA (accepted at the journal Plant and Soil). The purpose of the study was to evaluate the relative contributions of soil bacteria...
By
Land Management Research Program, Forest and Rangeland Ecosystem Science Center
Filter Total Items: 14

U.S. Geological Survey climate science plan—Future research directions

Executive Summary Climate is the primary driver of environmental change and is a key consideration in defining science priorities conducted across all mission areas in the U.S. Geological Survey (USGS). Recognizing the importance of climate change to its future research agenda, the USGS’s Climate Science Steering Committee requested the development of a Climate Science Plan to identify...
Authors
Tamara Wilson, Ryan P. Boyles, Nicole DeCrappeo, Judith Z. Drexler, Kevin Kroeger, Rachel A. Loehman, John M. Pearce, Mark P. Waldrop, Peter D. Warwick, Anne Wein, Sara Lynn Zeigler, T. Douglas Beard,
By
Ecosystems Mission Area, Water Resources Mission Area, Climate Adaptation Science Centers, Ecosystems Land Change Science Program, Energy Resources Program, Volcano Hazards Program, Alaska Science Center, California Water Science Center, Forest and Rangeland Ecosystem Science Center, Geology, Energy & Minerals Science Center, Volcano Science Center, Western Geographic Science Center, Woods Hole Coastal and Marine Science Center

Fungal and bacterial contributions to nitrogen cycling in cheatgrass-invaded and uninvaded native sagebrush soils of the western USA

AimThere is interest in determining how cheatgrass (Bromus tectorum L.) modifies N cycling in sagebrush (Artemisia tridentata Nutt.) soils of the western USA.MethodsTo gain insight into the roles of fungi and bacteria in N cycling of cheatgrass-invaded and uninvaded sagebrush soils, the fungal protein synthesis inhibitor, cycloheximide (CHX), and the bacteriocidal compound, bronopol (BRO...
Authors
Nicole DeCrappeo, Elizabeth J. DeLorenze, Andrew T Giguere, David Pyke, Peter J. Bottomley
By
Ecosystems Mission Area, Land Management Research Program, Forest and Rangeland Ecosystem Science Center

The integrated rangeland fire management strategy actionable science plan

The Integrated Rangeland Fire Management Strategy (hereafter Strategy, DOI 2015) outlined the need for coordinated, science-based adaptive management to achieve long-term protection, conservation, and restoration of the sagebrush (Artemisia spp.) ecosystem. A key component of this management approach is the identification of knowledge gaps that limit implementation of effective...
Authors
Cameron L. Aldridge, Ken Berg, Chad S. Boyd, Stephen P. Boyte, John Bradford, Ed Brunson, John H. Cissel, Courtney J. Conway, Anna D. Chalfoun, Jeanne C. Chambers, Patrick Clark, Peter S. Coates, Michele R. Crist, Dawn M. Davis, Nicole DeCrappeo, Patricia A. Deibert, Kevin Doherty, Louisa B. Evers, Deborah M. Finch, Sean P. Finn, Matthew Germino, Nancy F. Glenn, Corey Gucker, John D. Hall, Steve E. Hanser, Douglas W. Havlina, Julie A. Heinrichs, Matt Heller, Collin Homer, Molly E. Hunter, Ruth W. Jacobs, Jason W. Karl, Richard Kearney, Susan K Kemp, Francis F. Kilkenny, Steven T. Knick, Karen Launchbaugh, Daniel J. Manier, Kenneth F. Mayer, Susan E. Meyer, Adrian Pierre-Frederic Monroe, Eugénie MontBlanc, Beth A. Newingham, Michael L. Pellant, Sue Phillips, David S. Pilliod, Mark A. Ricca, Bryce Richardson, Jeffrey A. Rose, Nancy Shaw, Roger L. Sheley, Douglas J. Shinneman, Lief A. Wiechman, Bruce Wylie
By
Ecosystems Mission Area, Land Management Research Program

Plant diversity predicts beta but not alpha diversity of soil microbes across grasslands worldwide

Aboveground–belowground interactions exert critical controls on the composition and function of terrestrial ecosystems, yet the fundamental relationships between plant diversity and soil microbial diversity remain elusive. Theory predicts predominantly positive associations but tests within single sites have shown variable relationships, and associations between plant and microbial...
Authors
Suzanne M. Prober, Jonathan W. Leff, Scott T. Bates, Elizabeth T. Borer, Jennifer Firn, W.S. Harpole, Eric M. Lind, Eric W. Seabloom, Peter H. Adler, Jonathan D. Bakker, Elsa E. Cleland, Nicole DeCrappeo, Elizabeth J. DeLorenze, Nicole Hagenah, Yann Hautier, Kirsten S. Hofmockel, Kevin P. Kirkman, Johannes MH Knops, Kimberly J. La Pierre, Andrew S. MacDougall, Rebecca L. McCulley, Charles M. Mitchell, Anita C. Risch, Martin Schuetz, Carly J. Stevens, Ryan J. Williams, Noah Fierer
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Herbivores and nutrients control grassland plant diversity via light limitation

Human alterations to nutrient cycles and herbivore communities are affecting global biodiversity dramatically. Ecological theory predicts these changes should be strongly counteractive: nutrient addition drives plant species loss through intensified competition for light, whereas herbivores prevent competitive exclusion by increasing ground-level light, particularly in productive systems...
Authors
Elizabeth T. Borer, Eric W. Seabloom, Daniel S. Gruner, W.S. Harpole, Helmut Hillebrand, Eric M. Lind, Peter B. Alder, Juan Alberti, T. W. Anderson, Jonathan D. Bakker, Lori A. Biederman, Dana M. Blumenthal, Cynthia L. Brown, Lars A. Brudvig, Yvonne Buckley, Marc W. Cadotte, Cheng-Jin Chu, Elsa E. Cleland, Michael J. Crawley, Pedro Daleo, Ellen Ingman Damschen, Kendi F. Davies, Nicole DeCrappeo, Guozhen Du, Jennifer Firn, Yann Hautier, Robert W. Heckman, Andy Hector, Janneke HilleRisLambers, Oscar Iribarne, Julia A. Klein, Johannes MH Knops, Kimberly J. La Pierre, Andrew D.B. Leakey, Wei Li, Andrew S. MacDougall, Rebecca L. McCulley, Brett A Melbourne, Charles M. Mitchell, Joslin L. Moore, Brent Mortensen, Lydia R. O'Halloran, John L. Orrock, Jesús Pascual, Suzanne M. Prober, David Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Ryan J. Williams, Peter D. Wragg, Justin P. Wright, Louie H. Yang
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Forest and Rangeland Ecosystem Science Center

Soil-plant-microbial relations in hydrothermally altered soils of Northern California

Soils developed on relict hydrothermally altered soils throughout the Western USA present unique opportunities to study the role of geology on above and belowground biotic activity and composition. Soil and vegetation samples were taken at three unaltered andesite and three hydrothermally altered (acid-sulfate) sites located in and around Lassen VolcanicNational Park in northeastern...
Authors
S.W. Blecker, L.L. Stillings, Nicole DeCrappeo, J.A. Ippolito
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Forest and Rangeland Ecosystem Science Center

Predicting invasion in grassland ecosystems: Is exotic dominance the real embarrassment of richness?

Invasions have increased the size of regional species pools, but are typically assumed to reduce native diversity. However, global-scale tests of this assumption have been elusive because of the focus on exotic species richness, rather than relative abundance. This is problematic because low invader richness can indicate invasion resistance by the native community or, alternatively...
Authors
Eric W. Seabloom, Elizabeth T. Borer, Yvonne Buckley, Elsa E. Cleland, Kendi F. Davies, Jennifer Firn, W.S. Harpole, Yann Hautier, Eric M. Lind, Andrew S. MacDougall, John L. Orrock, Suzanne M. Prober, Peter H. Adler, Juan Alberti, T. W. Anderson, Jonathan D. Bakker, Lori A. Biederman, Dana M. Blumenthal, Cynthia L. Brown, Lars A. Brudvig, Maria Caldeira, Cheng-Jin Chu, Michael J. Crawley, Pedro Daleo, Ellen Ingman Damschen, Carla M. D'Antonio, Nicole DeCrappeo, Chris R. Dickman, Guozhen Du, Philip A. Fay, Paul N. Frater, Daniel S. Gruner, Nicole Hagenah, Andrew Hector, Aveliina Helm, Helmut Hillebrand, Kirsten S. Hofmockel, Hope C. Humphries, Oscar Iribarne, Virginia L. Jin, Adam D. Kay, Kevin P. Kirkman, Julia A. Klein, Johannes MH Knops, Kimberly J. La Pierre, Laura M. Ladwig, G. John, Andrew D.B. Leakey, Qi Li, Wei Li, Rebecca L. McCulley, Brett A Melbourne, E. G. Charles, Joslin L. Moore, John W. Morgan, Brent Mortensen, Lydia R. O'Halloran, Meelis Partel, Jesús Pascual, David Pyke, Anita C. Risch, Roberto Salguero-Gómez, Mahesh Sankaran, Martin Schuetz, Anna Simonsen, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Glenda M Wardle, Elizabeth M. Wolkovich, Peter D. Wragg, Justin P. Wright, Louie H. Yang
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Development and application of a soil organic matter-based soil quality index in mineralized terrane of the Western US

Soil quality indices provide a means of distilling large amounts of data into a single metric that evaluates the soil’s ability to carry out key ecosystem functions. Primarily developed in agroecosytems, then forested ecosystems, an index using the relation between soil organic matter and other key soil properties in more semi-arid systems of the Western US impacted by different geologic...
Authors
S.W. Blecker, Lisa L. Stillings, Michael C. Amacher, J.A. Ippolito, Nicole DeCrappeo
By
Energy and Mineral Resources Mission Area, Ecosystems Mission Area, Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Forest and Rangeland Ecosystem Science Center

Regional contingencies in the relationship between aboveground Bbomass and litter in the world’s grasslands

Based on regional-scale studies, aboveground production and litter decomposition are thought to positively covary, because they are driven by shared biotic and climatic factors. Until now we have been unable to test whether production and decomposition are generally coupled across climatically dissimilar regions, because we lacked replicated data collected within a single vegetation type...
Authors
Lydia R. O'Halloran, Elizabeth T. Borer, Eric W. Seabloom, Andrew S. MacDougall, Elsa E. Cleland, Rebecca L. McCulley, Sarah E Hobbie, W.S. Harpole, Nicole DeCrappeo, Cheng-Jin Chu, Jonathan D. Bakker, Kendi F. Davies, Guozhen Du, Jennifer Firn, Nicole Hagenah, Kirsten S. Hofmockel, Johannes MH Knops, Wei Li, Brett A Melbourne, John W. Morgan, John L. Orrock, Suzanne M. Prober, Carly J. Stevens
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Nitrogen limitation, 15N tracer retention, and growth response in intact and Bromus tectorum-invaded Artemisia tridentata ssp. wyomingensis communities

Annual grass invasion into shrub-dominated ecosystems is associated with changes in nutrient cycling that may alter nitrogen (N) limitation and retention. Carbon (C) applications that reduce plant-available N have been suggested to give native perennial vegetation a competitive advantage over exotic annual grasses, but plant community and N retention responses to C addition remain poorly...
Authors
Dana L. Witwicki, Paul S. Doescher, David Pyke, Nicole DeCrappeo, Steven Perakis
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Response to comments on "Productivity is a poor predictor of plant species richness"

Pan et al. claim that our results actually support a strong linear positive relationship between productivity and richness, whereas Fridley et al. contend that the data support a strong humped relationship. These responses illustrate how preoccupation with bivariate patterns distracts from a deeper understanding of the multivariate mechanisms that control these important ecosystem...
Authors
James B. Grace, Peter H. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W.S. Harpole, Lydia R. O'Halloran, T. W. Anderson, Jonathan D. Bakker, Cynthia L. Brown, Yvonne Buckley, Scott M. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole DeCrappeo, Philip A. Fay, Jennifer Firn, Daniel S. Gruner, Nicole Hagenah, Virginia L. Jin, Kevin P. Kirkman, Johannes MH Knops, Kimberly J. La Pierre, John G. Lambrinos, Brett A Melbourne, Charles M. Mitchell, Joslin L. Moore, John W. Morgan, John L. Orrock, Suzanne M. Prover, Carly J. Stevens, Peter D. Wragg, Louie H. Yang
By
Ecosystems Mission Area, Wetland and Aquatic Research Center

Productivity is a poor predictor of plant species richness

For more than 30 years, the relationship between net primary productivity and species richness has generated intense debate in ecology about the processes regulating local diversity. The original view, which is still widely accepted, holds that the relationship is hump-shaped, with richness first rising and then declining with increasing productivity. Although recent meta-analyses...
Authors
Peter H. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W.S. Harpole, Lydia R. O'Halloran, James B. Grace, T. W. Anderson, Jonathan D. Bakker, Lori A. Biederman, Cynthia L. Brown, Yvonne Buckley, Laura B. Calabrese, Cheng-Jin Chu, Elsa E. Cleland, Scott M. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole DeCrappeo, Philip A. Fay, Jennifer Firn, Paul N. Frater, Eve I. Gasarch, Daneil S. Gruner, Nicole Hagenah, Janneke Hille Ris Lambers, Hope C. Humphries, Virginia L. Jin, Adam D. Kay, Kevin P. Kirkman, Julia A. Klein, Johannes MH Knops, Kimberly J. La Pierre, John G. Lambrinos, Wei Li, Andrew S. MacDougall, Rebecca L. McCulley, Brett A Melbourne, Charles M. Mitchell, Joslin L. Moore, John W. Morgan, Brent Mortensen, John L. Orrock, Suzanne M. Prober, David Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Gang Wang, Peter D. Wragg, Justin P. Wright, Louie H. Yang
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center, Wetland and Aquatic Research Center
USGS Announces Expanded Consortiums for Alaska, Northwest, and Southeast Climate Adaptation Science Centers

USGS Announces Expanded Consortiums for Alaska, Northwest, and Southeast Climate Adaptation Science Centers

For the next five-years, USGS will partner with an expanded group of universities, Tribal colleges, and Tribal organizations to provide science that...

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Northwest CASC Welcomes USGS CASC Director Nicole DeCrappeo!

Northwest CASC Welcomes USGS CASC Director Nicole DeCrappeo!

The Northwest Climate Adaptation Science Center (NW CASC) is thrilled to welcome Nicole DeCrappeo as their U.S. Geological Survey (USGS) CASC Director...

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