Gregory B Lawrence (Former Employee)
Science and Products
Filter Total Items: 120
Response of water chemistry and young-of-year brook trout to channel and watershed liming in streams showing lagging recovery from acidic deposition Response of water chemistry and young-of-year brook trout to channel and watershed liming in streams showing lagging recovery from acidic deposition
Reductions in sulfur emissions have initiated chemical recovery of surface waters impacted by acidic deposition in the Adirondack region of New York State. However, acidified streams remain common in the region, which limits recovery of brook trout (Salvelinus fontinalis) populations. To investigate liming as a method to accelerate recovery of brook trout, the channels of two acidified...
Authors
Daniel C Josephson, Gregory B. Lawrence, Scott D. George, Jason Siemion, Barry P. Baldigo, Clifford E. Kraft
Spatial and temporal variability of fish assemblages in acidified streams: Implications for long-term monitoring Spatial and temporal variability of fish assemblages in acidified streams: Implications for long-term monitoring
Numerous studies have established strong linkages between acid deposition, soil and surface-water acidification, and toxicity to aquatic biota. Little is known however, about the effects of acidification on fish assemblages in headwater streams because they are highly variable, and pre-acidification data are often lacking. The primary purpose of this study was to describe spatial and...
Authors
Scott D. George, Barry P. Baldigo, Gregory B. Lawrence
Plant richness and composition in hardwood forest understories vary along an acidic deposition and soil-chemical gradient in the northeastern United States Plant richness and composition in hardwood forest understories vary along an acidic deposition and soil-chemical gradient in the northeastern United States
Aims
Authors
Michael R. Zarfos, Martin Dovciak, Gregory B. Lawrence, Todd C. McDonnell, Timothy J. Sullivan
Unprocessed atmospheric nitrate in waters of the Northern Forest Region in the USA and Canada Unprocessed atmospheric nitrate in waters of the Northern Forest Region in the USA and Canada
Little is known about the regional extent and variability of nitrate from atmospheric deposition that is transported to streams without biological processing in forests. We measured water chemistry and isotopic tracers (δ18O and δ15N) of nitrate sources across the Northern Forest Region of the U.S. and Canada and reanalyzed data from other studies to determine when, where, and how...
Authors
Stepen D Sebestyen, Donald D Ross, James B. Shanley, Emily M. Elliott, Carol Kendall, John L. Campbell, D Bryan Dail, Ivan J Fernandez, Christine L Goodale, Gregory B. Lawrence, Gary M. Lovett, Patrick J McHale, Myron J Mitchell, Sarah J. Nelson, Michelle D Shattuck, Trent R Wickman, Rebecca T. Barnes, Joel T. Bostic, Anthony R Buda, Douglas A Burns, Keith N. Eshleman, Jacques C. Finlay, David M. Nelson, Nobuhito Ohte, Linda H Pardo, Lucy A Rose, Robert J Sabo, Sherry L. Schiff, John Spoelstra, Karl W Williard
Probabilistic relationships between acid-base chemistry and fish assemblages in streams of the western Adirondack Mountains, New York, USA Probabilistic relationships between acid-base chemistry and fish assemblages in streams of the western Adirondack Mountains, New York, USA
Surface waters across much of the Adirondacks of New York were acidified in the late 20th century but began to recover after the 1990 amendments to the Clean Air Act. Little data, however, were available to characterize biological impacts and predict recovery of fish assemblages in regional streams. Quantitative fish and chemistry surveys were completed in 47 headwater streams during...
Authors
Barry P. Baldigo, Scott George, Timothy J. Sullivan, Charles T. Driscoll, Douglas A. Burns, Shuai Shoa, Gregory B. Lawrence
Effects of acidic deposition on the biodiversity of forest understory plant communities in the northern hardwood forests of the Adirondack Mountains Effects of acidic deposition on the biodiversity of forest understory plant communities in the northern hardwood forests of the Adirondack Mountains
No abstract available.
Authors
Timothy J. Sullivan, Todd C. McDonnell, Michael R. Zarfos, Martin Dovciak, Gregory B. Lawrence
Beta diversity response to stress severity and heterogeneity in sensitive versus tolerant stream diatoms Beta diversity response to stress severity and heterogeneity in sensitive versus tolerant stream diatoms
Aim
Authors
Katrina L Pound, Gregory B. Lawrence, Sophia Passy
Acidification impacts and goals for gauging recovery of Brook Trout populations and fish communities in streams of the Western Adirondack Mountains, New York, USA Acidification impacts and goals for gauging recovery of Brook Trout populations and fish communities in streams of the Western Adirondack Mountains, New York, USA
Results from several long‐term monitoring programs in the western Adirondack Mountains, New York, indicate that acid–base chemistry of headwater streams has remained unchanged or improved only marginally since the 1990s. A paucity of quantitative fishery data, however, limits our understanding of the pre‐acidified communities as well as present‐day impacts of acidification on fish...
Authors
Barry Baldigo, Scott George, Gregory B. Lawrence, Eric Paul
Growth and survival relationships of 71 tree species with nitrogen and sulfur deposition across the conterminous U.S. Growth and survival relationships of 71 tree species with nitrogen and sulfur deposition across the conterminous U.S.
Atmospheric deposition of nitrogen (N) influences forest demographics and carbon (C) uptake through multiple mechanisms that vary among tree species. Prior studies have estimated the effects of atmospheric N deposition on temperate forests by leveraging forest inventory measurements across regional gradients in deposition. However, in the United States (U.S.), these previous studies were...
Authors
Kevin J Horn, R. Quinn Thomas, Christopher M. Clark, Linda H Pardo, Mark E. Fenn, Gregory B. Lawrence, Steven S. Perakis, Erica A.H. Smithwick, Doug Baldwin, Sabine Braun, Annika Nordin, Charles H. Perry, Jennifer N Phelan, Paul G. Schaberg, Samuel B St Clair, Richard Warby, Shaun A. Watmough
Effects of watershed and in-stream liming on macroinvertebrate communities in acidified tributaries to Honnedaga Lake, NY Effects of watershed and in-stream liming on macroinvertebrate communities in acidified tributaries to Honnedaga Lake, NY
Liming techniques are being explored in many regions as a means to accelerate the recovery of aquatic biota from decades of acid deposition. The preservation or restoration of native sportfish populations has usually been the impetus for liming programs, and as such, less attention has been paid to its effects on other biological assemblages such as macroinvertebrates. In 2012, a program...
Authors
Gregory Lampman, Scott D. George, Barry P. Baldigo, Gregory B. Lawrence, Randall L. Fuller
Long-term changes in soil and stream chemistry across an acid deposition gradient in the northeastern United States Long-term changes in soil and stream chemistry across an acid deposition gradient in the northeastern United States
Declines in acidic deposition across Europe and North America have led to decreases in surface water acidity and signs of chemical recovery of soils from acidification. To better understand the link between recovery of soils and surface waters, chemical trends in precipitation, soils, and streamwater were investigated in three watersheds representing a depositional gradient from high to...
Authors
Jason Siemion, Michael McHale, Gregory B. Lawrence, Douglas A. Burns, Michael R. Antidormi
Results of the 2010-2011 East-Central Adirondack Stream Survey (ECASS) Results of the 2010-2011 East-Central Adirondack Stream Survey (ECASS)
No abstract available.
Authors
Gregory B. Lawrence, Scott D. George, Douglas A. Burns, Barry P. Baldigo, Sophia Passy, Karen M. Roy, Katrina L. Pound
Science and Products
Filter Total Items: 120
Response of water chemistry and young-of-year brook trout to channel and watershed liming in streams showing lagging recovery from acidic deposition Response of water chemistry and young-of-year brook trout to channel and watershed liming in streams showing lagging recovery from acidic deposition
Reductions in sulfur emissions have initiated chemical recovery of surface waters impacted by acidic deposition in the Adirondack region of New York State. However, acidified streams remain common in the region, which limits recovery of brook trout (Salvelinus fontinalis) populations. To investigate liming as a method to accelerate recovery of brook trout, the channels of two acidified...
Authors
Daniel C Josephson, Gregory B. Lawrence, Scott D. George, Jason Siemion, Barry P. Baldigo, Clifford E. Kraft
Spatial and temporal variability of fish assemblages in acidified streams: Implications for long-term monitoring Spatial and temporal variability of fish assemblages in acidified streams: Implications for long-term monitoring
Numerous studies have established strong linkages between acid deposition, soil and surface-water acidification, and toxicity to aquatic biota. Little is known however, about the effects of acidification on fish assemblages in headwater streams because they are highly variable, and pre-acidification data are often lacking. The primary purpose of this study was to describe spatial and...
Authors
Scott D. George, Barry P. Baldigo, Gregory B. Lawrence
Plant richness and composition in hardwood forest understories vary along an acidic deposition and soil-chemical gradient in the northeastern United States Plant richness and composition in hardwood forest understories vary along an acidic deposition and soil-chemical gradient in the northeastern United States
Aims
Authors
Michael R. Zarfos, Martin Dovciak, Gregory B. Lawrence, Todd C. McDonnell, Timothy J. Sullivan
Unprocessed atmospheric nitrate in waters of the Northern Forest Region in the USA and Canada Unprocessed atmospheric nitrate in waters of the Northern Forest Region in the USA and Canada
Little is known about the regional extent and variability of nitrate from atmospheric deposition that is transported to streams without biological processing in forests. We measured water chemistry and isotopic tracers (δ18O and δ15N) of nitrate sources across the Northern Forest Region of the U.S. and Canada and reanalyzed data from other studies to determine when, where, and how...
Authors
Stepen D Sebestyen, Donald D Ross, James B. Shanley, Emily M. Elliott, Carol Kendall, John L. Campbell, D Bryan Dail, Ivan J Fernandez, Christine L Goodale, Gregory B. Lawrence, Gary M. Lovett, Patrick J McHale, Myron J Mitchell, Sarah J. Nelson, Michelle D Shattuck, Trent R Wickman, Rebecca T. Barnes, Joel T. Bostic, Anthony R Buda, Douglas A Burns, Keith N. Eshleman, Jacques C. Finlay, David M. Nelson, Nobuhito Ohte, Linda H Pardo, Lucy A Rose, Robert J Sabo, Sherry L. Schiff, John Spoelstra, Karl W Williard
Probabilistic relationships between acid-base chemistry and fish assemblages in streams of the western Adirondack Mountains, New York, USA Probabilistic relationships between acid-base chemistry and fish assemblages in streams of the western Adirondack Mountains, New York, USA
Surface waters across much of the Adirondacks of New York were acidified in the late 20th century but began to recover after the 1990 amendments to the Clean Air Act. Little data, however, were available to characterize biological impacts and predict recovery of fish assemblages in regional streams. Quantitative fish and chemistry surveys were completed in 47 headwater streams during...
Authors
Barry P. Baldigo, Scott George, Timothy J. Sullivan, Charles T. Driscoll, Douglas A. Burns, Shuai Shoa, Gregory B. Lawrence
Effects of acidic deposition on the biodiversity of forest understory plant communities in the northern hardwood forests of the Adirondack Mountains Effects of acidic deposition on the biodiversity of forest understory plant communities in the northern hardwood forests of the Adirondack Mountains
No abstract available.
Authors
Timothy J. Sullivan, Todd C. McDonnell, Michael R. Zarfos, Martin Dovciak, Gregory B. Lawrence
Beta diversity response to stress severity and heterogeneity in sensitive versus tolerant stream diatoms Beta diversity response to stress severity and heterogeneity in sensitive versus tolerant stream diatoms
Aim
Authors
Katrina L Pound, Gregory B. Lawrence, Sophia Passy
Acidification impacts and goals for gauging recovery of Brook Trout populations and fish communities in streams of the Western Adirondack Mountains, New York, USA Acidification impacts and goals for gauging recovery of Brook Trout populations and fish communities in streams of the Western Adirondack Mountains, New York, USA
Results from several long‐term monitoring programs in the western Adirondack Mountains, New York, indicate that acid–base chemistry of headwater streams has remained unchanged or improved only marginally since the 1990s. A paucity of quantitative fishery data, however, limits our understanding of the pre‐acidified communities as well as present‐day impacts of acidification on fish...
Authors
Barry Baldigo, Scott George, Gregory B. Lawrence, Eric Paul
Growth and survival relationships of 71 tree species with nitrogen and sulfur deposition across the conterminous U.S. Growth and survival relationships of 71 tree species with nitrogen and sulfur deposition across the conterminous U.S.
Atmospheric deposition of nitrogen (N) influences forest demographics and carbon (C) uptake through multiple mechanisms that vary among tree species. Prior studies have estimated the effects of atmospheric N deposition on temperate forests by leveraging forest inventory measurements across regional gradients in deposition. However, in the United States (U.S.), these previous studies were...
Authors
Kevin J Horn, R. Quinn Thomas, Christopher M. Clark, Linda H Pardo, Mark E. Fenn, Gregory B. Lawrence, Steven S. Perakis, Erica A.H. Smithwick, Doug Baldwin, Sabine Braun, Annika Nordin, Charles H. Perry, Jennifer N Phelan, Paul G. Schaberg, Samuel B St Clair, Richard Warby, Shaun A. Watmough
Effects of watershed and in-stream liming on macroinvertebrate communities in acidified tributaries to Honnedaga Lake, NY Effects of watershed and in-stream liming on macroinvertebrate communities in acidified tributaries to Honnedaga Lake, NY
Liming techniques are being explored in many regions as a means to accelerate the recovery of aquatic biota from decades of acid deposition. The preservation or restoration of native sportfish populations has usually been the impetus for liming programs, and as such, less attention has been paid to its effects on other biological assemblages such as macroinvertebrates. In 2012, a program...
Authors
Gregory Lampman, Scott D. George, Barry P. Baldigo, Gregory B. Lawrence, Randall L. Fuller
Long-term changes in soil and stream chemistry across an acid deposition gradient in the northeastern United States Long-term changes in soil and stream chemistry across an acid deposition gradient in the northeastern United States
Declines in acidic deposition across Europe and North America have led to decreases in surface water acidity and signs of chemical recovery of soils from acidification. To better understand the link between recovery of soils and surface waters, chemical trends in precipitation, soils, and streamwater were investigated in three watersheds representing a depositional gradient from high to...
Authors
Jason Siemion, Michael McHale, Gregory B. Lawrence, Douglas A. Burns, Michael R. Antidormi
Results of the 2010-2011 East-Central Adirondack Stream Survey (ECASS) Results of the 2010-2011 East-Central Adirondack Stream Survey (ECASS)
No abstract available.
Authors
Gregory B. Lawrence, Scott D. George, Douglas A. Burns, Barry P. Baldigo, Sophia Passy, Karen M. Roy, Katrina L. Pound