Mountain ecosystems are highly sensitive to climate change, and USGS is conducting montane research across the West to help resource managers plan now for the future. Coordination with scientists around the world has led to mountain research networks to expand our understanding of how these ecosystems respond to climate change.
Mountain Ecosystem Research
Mountain Ecosystem Research
Filter Total Items: 19
No results found.
Recent data (2020-2022) related to USGS forest and mountain research is listed below. A complete listing of USGS forest and mountain data is available from the button below.
Filter Total Items: 14
No Result Found
Recent publications (2020-2022) related to USGS forest and mountain research are listed below. A complete listing of USGS forest and mountain publications is available from the button below.
Filter Total Items: 69
Long‐term surveys support declines in early‐season forest plants used by bumblebees Long‐term surveys support declines in early‐season forest plants used by bumblebees
Populations of bumble bees and other pollinators have declined over the past several decades due to numerous threats, including habitat loss and degradation. However, we can rarely investigate the role of resource loss due to a lack of detailed long‐term records of forage plants and habitats.We use 22‐year repeated surveys of more than 262 sites located in grassland, forest, and wetland...
Authors
John Michael Mola, Leif L Richardson, Greg Spyreas, David N. Zaya, Ian S. Pearse
UAV-based estimate of snow cover dynamics: Optimizing semi-arid forest structure for snow persistence UAV-based estimate of snow cover dynamics: Optimizing semi-arid forest structure for snow persistence
Seasonal snow cover in the dry forests of the American West provides essential water resources to both human and natural systems. The structure of trees and their arrangement across the landscape are important drivers of snow cover distribution across these forests, varying widely in both space and time. We used unmanned aerial vehicle (UAV) multispectral imagery and Structure-from...
Authors
Adam Belmonte, Temuulen T. Sankey, Joel Biedermann, John B. Bradford, Scott J Goetz, Thomas Kolb
Continent-wide tree fecundity driven by indirect climate effects Continent-wide tree fecundity driven by indirect climate effects
Indirect climate effects on tree fecundity that come through variation in size and growth (climate-condition interactions) are not currently part of models used to predict future forests. Trends in species abundances predicted from meta-analyses and species distribution models will be misleading if they depend on the conditions of individuals. Here we find from a synthesis of tree...
Authors
James S. Clark, Robert A. Andrus, Melaine Aubry-Kientz, Yves Bergeron, Michal Bogdziewicz, Don C. Bragg, Dale G. Brockway, Natalie L. Cleavitt, Susan Cohen, Benoit Courbaud, Robert Daley, Adrian Das, Michael Dietze, Timothy J. Fahey, Istem Fer, Jerry F. Franklin, Catherine A. Gehring, Gregory S. Gilbert, Catheryn H Greenberg, Qinfeng Guo, Janneke Hille Ris Lambers, Ines Ibanez, Jill F. Johnstone, Christopher L. Kilner, Johannes M.H. Knops, Walter D. Koenig, Georges Kunstler, Jalene M. LaMontagne, Kristin L Legg, Jordan Luongo, James A. Lutz, Diana Macias, Eliot J. B. McIntire, Yassine Messaoud, Christopher M. Moore, Emily V. Moran, Orrin B Myers, Chase Nunez, Robert Parmenter, Scott Pearson, Renata Poulton Kamakura, Ethan Ready, Miranda D. Redmond, Chantal D. Reid, Kyle C. Rodman, C. Lane Scher, Wiliam H Schlesinger, Amanda M Schwantes, Erin Shanahan, Shubhi Sharma, Michael A. Steele, Nathan L. Stephenson, Samantha Sutton, Jennifer J. Swenson, Margaret Swift, Thomas T. Veblen, Amy V. Whipple, Thomas G. Whitham, Andreas P. Wion, Kai Zhu, Roman Zlotin
Why is tree drought mortality so hard to predict? Why is tree drought mortality so hard to predict?
Widespread tree mortality following droughts has emerged as an environmentally and economically devastating ‘ecological surprise’. It is well established that tree physiology is important in understanding drought-driven mortality; however, the accuracy of predictions based on physiology alone has been limited. We propose that complicating factors at two levels stymie predictions of...
Authors
Anna T Trugman, Leander D.L. Anderegg, William RL Anderegg, Adrian Das, Nathan L. Stephenson
Patterns of conifer invasion following prescribed fire in grasslands and oak woodlands of Redwood National Park, California Patterns of conifer invasion following prescribed fire in grasslands and oak woodlands of Redwood National Park, California
The invasion, or “encroachment”, of native conifers commonly occurs in the absence of frequent fire in deciduous woodlands and grasslands of the Pacific Northwest, USA. To effectively target restoration activities, managers require a better understanding of the outcomes of prescribed fire and the spatial patterns of conifer invasions. We examined the duration of prescribed fire...
Authors
Phillip J. van Mantgem, Micah C. Wright, Eamon A. Engber
Shade, light, and stream temperature responses to riparian thinning in second-growth redwood forests of northern California Shade, light, and stream temperature responses to riparian thinning in second-growth redwood forests of northern California
Resource managers in the Pacific Northwest (USA) actively thin second-growth forests to accelerate the development of late-successional conditions and seek to expand these restoration thinning treatments into riparian zones. Riparian forest thinning, however, may impact stream temperatures–a key water quality parameter often regulated to protect stream habitat and aquatic organisms. To...
Authors
David Roon, Jason B. Dunham, Jeremiah D Groom
Mountain ecosystems are highly sensitive to climate change, and USGS is conducting montane research across the West to help resource managers plan now for the future. Coordination with scientists around the world has led to mountain research networks to expand our understanding of how these ecosystems respond to climate change.
Mountain Ecosystem Research
Mountain Ecosystem Research
Filter Total Items: 19
No results found.
Recent data (2020-2022) related to USGS forest and mountain research is listed below. A complete listing of USGS forest and mountain data is available from the button below.
Filter Total Items: 14
No Result Found
Recent publications (2020-2022) related to USGS forest and mountain research are listed below. A complete listing of USGS forest and mountain publications is available from the button below.
Filter Total Items: 69
Long‐term surveys support declines in early‐season forest plants used by bumblebees Long‐term surveys support declines in early‐season forest plants used by bumblebees
Populations of bumble bees and other pollinators have declined over the past several decades due to numerous threats, including habitat loss and degradation. However, we can rarely investigate the role of resource loss due to a lack of detailed long‐term records of forage plants and habitats.We use 22‐year repeated surveys of more than 262 sites located in grassland, forest, and wetland...
Authors
John Michael Mola, Leif L Richardson, Greg Spyreas, David N. Zaya, Ian S. Pearse
UAV-based estimate of snow cover dynamics: Optimizing semi-arid forest structure for snow persistence UAV-based estimate of snow cover dynamics: Optimizing semi-arid forest structure for snow persistence
Seasonal snow cover in the dry forests of the American West provides essential water resources to both human and natural systems. The structure of trees and their arrangement across the landscape are important drivers of snow cover distribution across these forests, varying widely in both space and time. We used unmanned aerial vehicle (UAV) multispectral imagery and Structure-from...
Authors
Adam Belmonte, Temuulen T. Sankey, Joel Biedermann, John B. Bradford, Scott J Goetz, Thomas Kolb
Continent-wide tree fecundity driven by indirect climate effects Continent-wide tree fecundity driven by indirect climate effects
Indirect climate effects on tree fecundity that come through variation in size and growth (climate-condition interactions) are not currently part of models used to predict future forests. Trends in species abundances predicted from meta-analyses and species distribution models will be misleading if they depend on the conditions of individuals. Here we find from a synthesis of tree...
Authors
James S. Clark, Robert A. Andrus, Melaine Aubry-Kientz, Yves Bergeron, Michal Bogdziewicz, Don C. Bragg, Dale G. Brockway, Natalie L. Cleavitt, Susan Cohen, Benoit Courbaud, Robert Daley, Adrian Das, Michael Dietze, Timothy J. Fahey, Istem Fer, Jerry F. Franklin, Catherine A. Gehring, Gregory S. Gilbert, Catheryn H Greenberg, Qinfeng Guo, Janneke Hille Ris Lambers, Ines Ibanez, Jill F. Johnstone, Christopher L. Kilner, Johannes M.H. Knops, Walter D. Koenig, Georges Kunstler, Jalene M. LaMontagne, Kristin L Legg, Jordan Luongo, James A. Lutz, Diana Macias, Eliot J. B. McIntire, Yassine Messaoud, Christopher M. Moore, Emily V. Moran, Orrin B Myers, Chase Nunez, Robert Parmenter, Scott Pearson, Renata Poulton Kamakura, Ethan Ready, Miranda D. Redmond, Chantal D. Reid, Kyle C. Rodman, C. Lane Scher, Wiliam H Schlesinger, Amanda M Schwantes, Erin Shanahan, Shubhi Sharma, Michael A. Steele, Nathan L. Stephenson, Samantha Sutton, Jennifer J. Swenson, Margaret Swift, Thomas T. Veblen, Amy V. Whipple, Thomas G. Whitham, Andreas P. Wion, Kai Zhu, Roman Zlotin
Why is tree drought mortality so hard to predict? Why is tree drought mortality so hard to predict?
Widespread tree mortality following droughts has emerged as an environmentally and economically devastating ‘ecological surprise’. It is well established that tree physiology is important in understanding drought-driven mortality; however, the accuracy of predictions based on physiology alone has been limited. We propose that complicating factors at two levels stymie predictions of...
Authors
Anna T Trugman, Leander D.L. Anderegg, William RL Anderegg, Adrian Das, Nathan L. Stephenson
Patterns of conifer invasion following prescribed fire in grasslands and oak woodlands of Redwood National Park, California Patterns of conifer invasion following prescribed fire in grasslands and oak woodlands of Redwood National Park, California
The invasion, or “encroachment”, of native conifers commonly occurs in the absence of frequent fire in deciduous woodlands and grasslands of the Pacific Northwest, USA. To effectively target restoration activities, managers require a better understanding of the outcomes of prescribed fire and the spatial patterns of conifer invasions. We examined the duration of prescribed fire...
Authors
Phillip J. van Mantgem, Micah C. Wright, Eamon A. Engber
Shade, light, and stream temperature responses to riparian thinning in second-growth redwood forests of northern California Shade, light, and stream temperature responses to riparian thinning in second-growth redwood forests of northern California
Resource managers in the Pacific Northwest (USA) actively thin second-growth forests to accelerate the development of late-successional conditions and seek to expand these restoration thinning treatments into riparian zones. Riparian forest thinning, however, may impact stream temperatures–a key water quality parameter often regulated to protect stream habitat and aquatic organisms. To...
Authors
David Roon, Jason B. Dunham, Jeremiah D Groom