Nicole M. DeCrappeo, Ph.D. (Former Employee)
Science and Products
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.
Nitrogen cycling rates from sagebrush and cheatgrass-invaded soils in the Northern Great Basin (2008) 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...
Filter Total Items: 14
U.S. Geological Survey climate science plan—Future research directions 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 Boyles, Nicole DeCrappeo, Judith Drexler, Kevin Kroeger, Rachel Loehman, John Pearce, Mark Waldrop, Peter Warwick, Anne Wein, Sara Zeigler, 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 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 DeLorenze, Andrew Giguere, David Pyke, Peter Bottomley
The integrated rangeland fire management strategy actionable science plan 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 Aldridge, Ken Berg, Chad Boyd, Stephen Boyte, John Bradford, Ed Brunson, John Cissel, Courtney Conway, Anna Chalfoun, Jeanne Chambers, Patrick Clark, Peter Coates, Michele Crist, Dawn Davis, Nicole DeCrappeo, Patricia Deibert, Kevin E. Doherty, Louisa Evers, Deborah Finch, Sean Finn, Matthew Germino, Nancy Glenn, Corey Gucker, John Hall, Steven E. Hanser, Douglas Havlina, Julie Heinrichs, Matt Heller, Collin Homer, Molly Hunter, Ruth Jacobs, Jason W. Karl, Richard Kearney, Susan Kemp, Francis Kilkenny, Steven Knick, Karen Launchbaugh, Daniel Manier, Kenneth E. Mayer, Susan Meyer, Adrian P. Monroe, Eugenie MontBlanc, Beth Newingham, Michael Pellant, Susan Phillips, David S. Pilliod, Mark Ricca, Bryce A. Richardson, Jeffrey Rose, Nancy Shaw, Roger Sheley, Douglas J. Shinneman, Lief Wiechman, Bruce Wylie
Plant diversity predicts beta but not alpha diversity of soil microbes across grasslands worldwide 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 Prober, Jonathan Leff, Scott Bates, Elizabeth Borer, Jennifer Firn, W. Stanley Harpole, Eric M. Lind, Eric Seabloom, Peter Adler, Jonathan Bakker, Elsa E. Cleland, Nicole DeCrappeo, Elizabeth DeLorenze, Nicole Hagenah, Yann Hautier, Kirsten Hofmockel, Kevin Kirkman, Johannes Knops, Kimberly La Pierre, Andrew MacDougall, Rebecca McCulley, Charles E. Mitchell, Anita C. Risch, Martin Schuetz, Carly Stevens, Ryan Williams, Noah Fierer
Herbivores and nutrients control grassland plant diversity via light limitation 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 Borer, Eric Seabloom, Daniel S. Gruner, W. Stanley Harpole, Helmut Hillebrand, Eric Lind, Peter Alder, Juan Alberti, T. Michael Anderson, Jonathan Bakker, Lori Biederman, Dana Blumenthal, Cynthia Brown, Lars Brudvig, Yvonne Buckley, Marc Cadotte, Cheng-Jin Chu, Elsa E. Cleland, Michael Crawley, Pedro Daleo, Ellen Damschen, Kendi Davies, Nicole DeCrappeo, Guozhen Du, Jennifer Firn, Yann Hautier, Robert Heckman, Andy Hector, Janneke HilleRisLambers, Oscar Iribarne, Julia Klein, Johannes Knops, Kimberly La Pierre, Andrew Leakey, Wei Li, Andrew MacDougall, Rebecca McCulley, Brett Melbourne, Charles E. Mitchell, Joslin Moore, Brent Mortensen, Lydia O’Halloran, John L. Orrock, Jesus Pascual, Suzanne Prober, David Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly Stevens, Lauren Sullivan, Ryan Williams, Peter Wragg, Justin Wright, Louie Yang
Soil-plant-microbial relations in hydrothermally altered soils of Northern California 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, N.M. DeCrappeo, J.A. Ippolito
Predicting invasion in grassland ecosystems: Is exotic dominance the real embarrassment of richness? 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 Seabloom, Elizabeth Borer, Yvonne Buckley, Elsa E. Cleland, Kendi Davies, Jennifer Firn, W. Stanley Harpole, Yann Hautier, Eric M. Lind, Andrew MacDougall, John L. Orrock, Suzanne Prober, Peter Adler, Juan Alberti, T. Michael Anderson, Jonathan Bakker, Lori Biederman, Dana Blumenthal, Cynthia Brown, Lars Brudvig, Maria Caldeira, Cheng-Jin Chu, Michael Crawley, Pedro Daleo, Ellen Damschen, Carla M. D'Antonio, Nicole DeCrappeo, Chris Dickman, Guozhen Du, Philip Fay, Paul Frater, Daniel S. Gruner, Nicole Hagenah, Andrew Hector, Aveliina Helm, Helmut Hillebrand, Kirsten Hofmockel, Hope Humphries, Oscar Iribarne, Virginia Jin, Adam Kay, Kevin Kirkman, Julia Klein, Johannes Knops, Kimberly La Pierre, Laura Ladwig, G. John, Andrew Leakey, Qi Li, Wei Li, Rebecca McCulley, Brett Melbourne, E. Charles, Joslin Moore, John Morgan, Brent Mortensen, Lydia O’Halloran, Meelis Pärtel, Jesus Pascual, David Pyke, Anita C. Risch, Roberto Salguero-Gomez, Mahesh Sankaran, Martin Schuetz, Anna Simonsen, Melinda Smith, Carly Stevens, Lauren Sullivan, Glenda Wardle, Elizabeth M. Wolkovich, Peter Wragg, Justin Wright, Louie Yang
Development and application of a soil organic matter-based soil quality index in mineralized terrane of the Western US 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, M.C. Amacher, J.A. Ippolito, N.M. DeCrappeo
Regional contingencies in the relationship between aboveground Bbomass and litter in the world’s grasslands 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 Borer, Eric Seabloom, Andrew MacDougall, Elsa E. Cleland, Rebecca McCulley, Sarah Hobbie, W. Harpole, Nicole DeCrappeo, Cheng-Jin Chu, Jonathan Bakker, Kendi Davies, Guozhen Du, Jennifer Firn, Nicole Hagenah, Kirsten Hofmockel, Johannes Knops, Wei Li, Brett Melbourne, John Morgan, John L. Orrock, Suzanne Prober, Carly Stevens
Nitrogen limitation, 15N tracer retention, and growth response in intact and Bromus tectorum-invaded Artemisia tridentata ssp. wyomingensis communities 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 Witwicki, Paul Doescher, David Pyke, Nicole DeCrappeo, Steven S. Perakis
Response to comments on "Productivity is a poor predictor of plant species richness" 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 Grace, Peter Adler, Eric Seabloom, Elizabeth Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia O’Halloran, T. Michael Anderson, Jonathan Bakker, Cynthia Brown, Yvonne Buckley, Scott L. Collins, Kathryn Cottingham, Michael Crawley, Ellen Damschen, Kendi Davies, Nicole DeCrappeo, Philip Fay, Jennifer Firn, Daniel S. Gruner, Nicole Hagenah, Virginia Jin, Kevin Kirkman, Johannes Knops, Kimberly La Pierre, John Lambrinos, Brett Melbourne, Charles E. Mitchell, Joslin Moore, John Morgan, John L. Orrock, Suzanne Prover, Carly Stevens, Peter Wragg, Louie Yang
Productivity is a poor predictor of plant species richness 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 Adler, Eric Seabloom, Elizabeth Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia O’Halloran, James Grace, T. Michael Anderson, Jonathan Bakker, Lori Biederman, Cynthia Brown, Yvonne Buckley, Laura Calabrese, Cheng-Jin Chu, Elsa E. Cleland, Scott L. Collins, Kathryn Cottingham, Michael Crawley, Ellen Damschen, Kendi Davies, Nicole DeCrappeo, Philip Fay, Jennifer Firn, Paul Frater, Eve Gasarch, Daneil Gruner, Nicole Hagenah, Janneke Lambers, Hope Humphries, Virginia Jin, Adam Kay, Kevin Kirkman, Julia Klein, Johannes Knops, Kimberly La Pierre, John Lambrinos, Wei Li, Andrew MacDougall, Rebecca McCulley, Brett Melbourne, Charles E. Mitchell, Joslin Moore, John Morgan, Brent Mortensen, John L. Orrock, Suzanne Prober, David Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly Stevens, Lauren Sullivan, Gang Wang, Peter Wragg, Justin Wright, Louie Yang
Science and Products
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.
Nitrogen cycling rates from sagebrush and cheatgrass-invaded soils in the Northern Great Basin (2008) 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...
Filter Total Items: 14
U.S. Geological Survey climate science plan—Future research directions 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 Boyles, Nicole DeCrappeo, Judith Drexler, Kevin Kroeger, Rachel Loehman, John Pearce, Mark Waldrop, Peter Warwick, Anne Wein, Sara Zeigler, 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 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 DeLorenze, Andrew Giguere, David Pyke, Peter Bottomley
The integrated rangeland fire management strategy actionable science plan 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 Aldridge, Ken Berg, Chad Boyd, Stephen Boyte, John Bradford, Ed Brunson, John Cissel, Courtney Conway, Anna Chalfoun, Jeanne Chambers, Patrick Clark, Peter Coates, Michele Crist, Dawn Davis, Nicole DeCrappeo, Patricia Deibert, Kevin E. Doherty, Louisa Evers, Deborah Finch, Sean Finn, Matthew Germino, Nancy Glenn, Corey Gucker, John Hall, Steven E. Hanser, Douglas Havlina, Julie Heinrichs, Matt Heller, Collin Homer, Molly Hunter, Ruth Jacobs, Jason W. Karl, Richard Kearney, Susan Kemp, Francis Kilkenny, Steven Knick, Karen Launchbaugh, Daniel Manier, Kenneth E. Mayer, Susan Meyer, Adrian P. Monroe, Eugenie MontBlanc, Beth Newingham, Michael Pellant, Susan Phillips, David S. Pilliod, Mark Ricca, Bryce A. Richardson, Jeffrey Rose, Nancy Shaw, Roger Sheley, Douglas J. Shinneman, Lief Wiechman, Bruce Wylie
Plant diversity predicts beta but not alpha diversity of soil microbes across grasslands worldwide 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 Prober, Jonathan Leff, Scott Bates, Elizabeth Borer, Jennifer Firn, W. Stanley Harpole, Eric M. Lind, Eric Seabloom, Peter Adler, Jonathan Bakker, Elsa E. Cleland, Nicole DeCrappeo, Elizabeth DeLorenze, Nicole Hagenah, Yann Hautier, Kirsten Hofmockel, Kevin Kirkman, Johannes Knops, Kimberly La Pierre, Andrew MacDougall, Rebecca McCulley, Charles E. Mitchell, Anita C. Risch, Martin Schuetz, Carly Stevens, Ryan Williams, Noah Fierer
Herbivores and nutrients control grassland plant diversity via light limitation 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 Borer, Eric Seabloom, Daniel S. Gruner, W. Stanley Harpole, Helmut Hillebrand, Eric Lind, Peter Alder, Juan Alberti, T. Michael Anderson, Jonathan Bakker, Lori Biederman, Dana Blumenthal, Cynthia Brown, Lars Brudvig, Yvonne Buckley, Marc Cadotte, Cheng-Jin Chu, Elsa E. Cleland, Michael Crawley, Pedro Daleo, Ellen Damschen, Kendi Davies, Nicole DeCrappeo, Guozhen Du, Jennifer Firn, Yann Hautier, Robert Heckman, Andy Hector, Janneke HilleRisLambers, Oscar Iribarne, Julia Klein, Johannes Knops, Kimberly La Pierre, Andrew Leakey, Wei Li, Andrew MacDougall, Rebecca McCulley, Brett Melbourne, Charles E. Mitchell, Joslin Moore, Brent Mortensen, Lydia O’Halloran, John L. Orrock, Jesus Pascual, Suzanne Prober, David Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly Stevens, Lauren Sullivan, Ryan Williams, Peter Wragg, Justin Wright, Louie Yang
Soil-plant-microbial relations in hydrothermally altered soils of Northern California 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, N.M. DeCrappeo, J.A. Ippolito
Predicting invasion in grassland ecosystems: Is exotic dominance the real embarrassment of richness? 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 Seabloom, Elizabeth Borer, Yvonne Buckley, Elsa E. Cleland, Kendi Davies, Jennifer Firn, W. Stanley Harpole, Yann Hautier, Eric M. Lind, Andrew MacDougall, John L. Orrock, Suzanne Prober, Peter Adler, Juan Alberti, T. Michael Anderson, Jonathan Bakker, Lori Biederman, Dana Blumenthal, Cynthia Brown, Lars Brudvig, Maria Caldeira, Cheng-Jin Chu, Michael Crawley, Pedro Daleo, Ellen Damschen, Carla M. D'Antonio, Nicole DeCrappeo, Chris Dickman, Guozhen Du, Philip Fay, Paul Frater, Daniel S. Gruner, Nicole Hagenah, Andrew Hector, Aveliina Helm, Helmut Hillebrand, Kirsten Hofmockel, Hope Humphries, Oscar Iribarne, Virginia Jin, Adam Kay, Kevin Kirkman, Julia Klein, Johannes Knops, Kimberly La Pierre, Laura Ladwig, G. John, Andrew Leakey, Qi Li, Wei Li, Rebecca McCulley, Brett Melbourne, E. Charles, Joslin Moore, John Morgan, Brent Mortensen, Lydia O’Halloran, Meelis Pärtel, Jesus Pascual, David Pyke, Anita C. Risch, Roberto Salguero-Gomez, Mahesh Sankaran, Martin Schuetz, Anna Simonsen, Melinda Smith, Carly Stevens, Lauren Sullivan, Glenda Wardle, Elizabeth M. Wolkovich, Peter Wragg, Justin Wright, Louie Yang
Development and application of a soil organic matter-based soil quality index in mineralized terrane of the Western US 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, M.C. Amacher, J.A. Ippolito, N.M. DeCrappeo
Regional contingencies in the relationship between aboveground Bbomass and litter in the world’s grasslands 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 Borer, Eric Seabloom, Andrew MacDougall, Elsa E. Cleland, Rebecca McCulley, Sarah Hobbie, W. Harpole, Nicole DeCrappeo, Cheng-Jin Chu, Jonathan Bakker, Kendi Davies, Guozhen Du, Jennifer Firn, Nicole Hagenah, Kirsten Hofmockel, Johannes Knops, Wei Li, Brett Melbourne, John Morgan, John L. Orrock, Suzanne Prober, Carly Stevens
Nitrogen limitation, 15N tracer retention, and growth response in intact and Bromus tectorum-invaded Artemisia tridentata ssp. wyomingensis communities 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 Witwicki, Paul Doescher, David Pyke, Nicole DeCrappeo, Steven S. Perakis
Response to comments on "Productivity is a poor predictor of plant species richness" 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 Grace, Peter Adler, Eric Seabloom, Elizabeth Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia O’Halloran, T. Michael Anderson, Jonathan Bakker, Cynthia Brown, Yvonne Buckley, Scott L. Collins, Kathryn Cottingham, Michael Crawley, Ellen Damschen, Kendi Davies, Nicole DeCrappeo, Philip Fay, Jennifer Firn, Daniel S. Gruner, Nicole Hagenah, Virginia Jin, Kevin Kirkman, Johannes Knops, Kimberly La Pierre, John Lambrinos, Brett Melbourne, Charles E. Mitchell, Joslin Moore, John Morgan, John L. Orrock, Suzanne Prover, Carly Stevens, Peter Wragg, Louie Yang
Productivity is a poor predictor of plant species richness 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 Adler, Eric Seabloom, Elizabeth Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia O’Halloran, James Grace, T. Michael Anderson, Jonathan Bakker, Lori Biederman, Cynthia Brown, Yvonne Buckley, Laura Calabrese, Cheng-Jin Chu, Elsa E. Cleland, Scott L. Collins, Kathryn Cottingham, Michael Crawley, Ellen Damschen, Kendi Davies, Nicole DeCrappeo, Philip Fay, Jennifer Firn, Paul Frater, Eve Gasarch, Daneil Gruner, Nicole Hagenah, Janneke Lambers, Hope Humphries, Virginia Jin, Adam Kay, Kevin Kirkman, Julia Klein, Johannes Knops, Kimberly La Pierre, John Lambrinos, Wei Li, Andrew MacDougall, Rebecca McCulley, Brett Melbourne, Charles E. Mitchell, Joslin Moore, John Morgan, Brent Mortensen, John L. Orrock, Suzanne Prober, David Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly Stevens, Lauren Sullivan, Gang Wang, Peter Wragg, Justin Wright, Louie Yang