Lorraine E Flint (Former Employee)
Science and Products
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Adapting California’s ecosystems to a changing climate
Significant efforts are underway to translate improved understanding of how climate change is altering ecosystems into practical actions for sustaining ecosystem functions and benefits. We explore this transition in California, where adaptation and mitigation are advancing relatively rapidly, through four case studies that span large spatial domains and encompass diverse ecological systems, instit
Authors
Elizabeth Chornesky, David Ackerly, Paul Beier, Frank W. Davis, Lorraine E. Flint, Joshua J. Lawler, Peter B. Moyle, Max A. Moritz, Mary Scoonover, Kristin B. Byrd, Pelayo Alvarez, Nicole E. Heller, Elisabeth Micheli, Stuart Weiss
Shrinking windows of opportunity for oak seedling establishment in southern California mountains
Seedling establishment is a critical step that may ultimately govern tree species’ distribution shifts under environmental change. Annual variation in the location of seed rain and microclimates results in transient “windows of opportunity” for tree seedling establishment across the landscape. These establishment windows vary at fine spatiotemporal scales that are not considered in most assessment
Authors
Frank W. Davis, Lynn C. Sweet, Josep M. Serra-Diaz, Janet Franklin, Ian M. McCullough, Alan L. Flint, Lorraine E. Flint, John Dingman, Helen M. Regan, Alexandra D. Syphard, Lee Hannah, Kelly Redmond, Max A. Moritz
Characterizing changes in streamflow and sediment supply in the Sacramento River Basin, California, using hydrological simulation program—FORTRAN (HSPF)
A daily watershed model of the Sacramento River Basin of northern California was developed to simulate streamflow and suspended sediment transport to the San Francisco Bay-Delta. To compensate for sparse data, a unique combination of model inputs was developed, including meteorological variables, potential evapotranspiration, and parameters defining hydraulic geometry. A slight decreasing trend of
Authors
Michelle A. Stern, Lorraine E. Flint, Justin Toby Minear, Alan L. Flint, Scott A. Wright
Maxent modeling for predicting potential distribution of goitered gazelle in central Iran: the effect of extent and grain size on performance of the model
The spatial scale of environmental layers is an important factor to consider in developing an understanding of ecological processes. This study employed Maxent modeling to investigate the geographic distribution of goitered gazelle, Gazella subgutturosa (Güldenstädt, 1780), in central Iran using uncorrelated variables at a spatial resolution of 250 m. We used spatial downscaling to downscale World
Authors
Rasoul Khosravi, Mahmoud-Reza Hemami, Mansoureh Malekian, Alan L. Flint, Lorraine E. Flint
The role of snowpack, rainfall, and reservoirs in buffering California against drought effects
California’s vast reservoir system, fed by annual snow-and rainfall, plays an important part in providing water to the State’s human and wildlife population. There are almost 1,300 reservoirs throughout the State, but only approximately 200 of them are considered storage reservoirs, and many of the larger ones are critical components of the Federal Central Valley Project and California State Water
Authors
Mary Johannis, Lorraine E. Flint, Michael D. Dettinger, Alan L. Flint, Regina Ochoa
A framework for effective use of hydroclimate models in climate-change adaptation planning for managed habitats with limited hydrologic response data
Climate-change adaptation planning for managed wetlands is challenging under uncertain futures when the impact of historic climate variability on wetland response is unquantified. We assessed vulnerability of Modoc National Wildlife Refuge (MNWR) through use of the Basin Characterization Model (BCM) landscape hydrology model, and six global climate models, representing projected wetter and drier c
Authors
Rachel A. Esralew, Lorraine E. Flint, James H. Thorne, Ryan Boynton, Alan L. Flint
Effects of topoclimatic complexity on the composition of woody plant communities
Topography can create substantial environmental variation at fine spatial scales. Shaped by slope, aspect, hill-position and elevation, topoclimate heterogeneity may increase ecological diversity, and act as a spatial buffer for vegetation responding to climate change. Strong links have been observed between climate heterogeneity and species diversity at broader scales, but the importance of topoc
Authors
Meagan F. Oldfather, Matthew N. Britton, Prahlad D. Papper, Michael J. Koontz, Michelle M. Halbur, Celeste Dodge, Alan L. Flint, Lorraine E. Flint, David D. Ackerly
High and dry: high elevations disproportionately exposed to regional climate change in Mediterranean-climate landscapes
Context
Predicting climate-driven species’ range shifts depends substantially on species’ exposure to climate change. Mountain landscapes contain a wide range of topoclimates and soil characteristics that are thought to mediate range shifts and buffer species’ exposure. Quantifying fine-scale patterns of exposure across mountainous terrain is a key step in understanding vulnerability of species t
Authors
Ian M. McCullough, Frank W. Davis, John R. Dingman, Lorraine E. Flint, Alan L. Flint, Josep M. Serra-Diaz, Alexandra D. Syphard, Max A. Moritz, Lee Hannah, Janet Franklin
Hydrogeology, hydrologic effects of development, and simulation of groundwater flow in the Borrego Valley, San Diego County, California
Executive Summary
The Borrego Valley is a small valley (110 square miles) in the northeastern part of San Diego County, California. Although the valley is about 60 miles northeast of city of San Diego, it is separated from the Pacific Ocean coast by the mountains to the west and is mostly within the boundaries of Anza-Borrego Desert State Park. From the time the basin was first settled, groundwate
Authors
Claudia C. Faunt, Christina L. Stamos, Lorraine E. Flint, Michael T. Wright, Matthew K. Burgess, Michelle Sneed, Justin T. Brandt, Peter Martin, Alissa L. Coes
Averaged 30 year climate change projections mask opportunities for species establishment
No abstract available.
Authors
Josep M. Serra-Diaz, Janet Franklin, Lynn C. Sweet, Ian M. McCullough, Alexandra D. Syphard, Helen M. Regan, Lorraine E. Flint, Alan L. Flint, John Dingman, Max A. Moritz, Kelly T. Redmond, Lee Hannah, Frank W. Davis
Tree mortality predicted from drought-induced vascular damage
The projected responses of forest ecosystems to warming and drying associated with twenty-first-century climate change vary widely from resiliency to widespread tree mortality1, 2, 3. Current vegetation models lack the ability to account for mortality of overstorey trees during extreme drought owing to uncertainties in mechanisms and thresholds causing mortality4, 5. Here we assess the causes of t
Authors
William R.L. Anderegg, Alan L. Flint, Cho-ying Huang, Lorraine E. Flint, Joseph A. Berry, Frank W. Davis, John S. Sperry, Christopher B. Field
Topographic, latitudinal and climatic distribution of Pinus coulteri: geographic range limits are not at the edge of the climate envelope
With changing climate, many species are projected to move poleward or to higher elevations to track suitable climates. The prediction that species will move poleward assumes that geographically marginal populations are at the edge of the species' climatic range. We studied Pinus coulteri from the center to the northern (poleward) edge of its range, and examined three scenarios regarding the relati
Authors
Nathalie I. Chardon, William K. Cornwell, Lorraine E. Flint, Alan L. Flint, David D. Ackerly
Science and Products
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Filter Total Items: 20
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Filter Total Items: 102
Adapting California’s ecosystems to a changing climate
Significant efforts are underway to translate improved understanding of how climate change is altering ecosystems into practical actions for sustaining ecosystem functions and benefits. We explore this transition in California, where adaptation and mitigation are advancing relatively rapidly, through four case studies that span large spatial domains and encompass diverse ecological systems, institAuthorsElizabeth Chornesky, David Ackerly, Paul Beier, Frank W. Davis, Lorraine E. Flint, Joshua J. Lawler, Peter B. Moyle, Max A. Moritz, Mary Scoonover, Kristin B. Byrd, Pelayo Alvarez, Nicole E. Heller, Elisabeth Micheli, Stuart WeissShrinking windows of opportunity for oak seedling establishment in southern California mountains
Seedling establishment is a critical step that may ultimately govern tree species’ distribution shifts under environmental change. Annual variation in the location of seed rain and microclimates results in transient “windows of opportunity” for tree seedling establishment across the landscape. These establishment windows vary at fine spatiotemporal scales that are not considered in most assessmentAuthorsFrank W. Davis, Lynn C. Sweet, Josep M. Serra-Diaz, Janet Franklin, Ian M. McCullough, Alan L. Flint, Lorraine E. Flint, John Dingman, Helen M. Regan, Alexandra D. Syphard, Lee Hannah, Kelly Redmond, Max A. MoritzCharacterizing changes in streamflow and sediment supply in the Sacramento River Basin, California, using hydrological simulation program—FORTRAN (HSPF)
A daily watershed model of the Sacramento River Basin of northern California was developed to simulate streamflow and suspended sediment transport to the San Francisco Bay-Delta. To compensate for sparse data, a unique combination of model inputs was developed, including meteorological variables, potential evapotranspiration, and parameters defining hydraulic geometry. A slight decreasing trend ofAuthorsMichelle A. Stern, Lorraine E. Flint, Justin Toby Minear, Alan L. Flint, Scott A. WrightMaxent modeling for predicting potential distribution of goitered gazelle in central Iran: the effect of extent and grain size on performance of the model
The spatial scale of environmental layers is an important factor to consider in developing an understanding of ecological processes. This study employed Maxent modeling to investigate the geographic distribution of goitered gazelle, Gazella subgutturosa (Güldenstädt, 1780), in central Iran using uncorrelated variables at a spatial resolution of 250 m. We used spatial downscaling to downscale WorldAuthorsRasoul Khosravi, Mahmoud-Reza Hemami, Mansoureh Malekian, Alan L. Flint, Lorraine E. FlintThe role of snowpack, rainfall, and reservoirs in buffering California against drought effects
California’s vast reservoir system, fed by annual snow-and rainfall, plays an important part in providing water to the State’s human and wildlife population. There are almost 1,300 reservoirs throughout the State, but only approximately 200 of them are considered storage reservoirs, and many of the larger ones are critical components of the Federal Central Valley Project and California State WaterAuthorsMary Johannis, Lorraine E. Flint, Michael D. Dettinger, Alan L. Flint, Regina OchoaA framework for effective use of hydroclimate models in climate-change adaptation planning for managed habitats with limited hydrologic response data
Climate-change adaptation planning for managed wetlands is challenging under uncertain futures when the impact of historic climate variability on wetland response is unquantified. We assessed vulnerability of Modoc National Wildlife Refuge (MNWR) through use of the Basin Characterization Model (BCM) landscape hydrology model, and six global climate models, representing projected wetter and drier cAuthorsRachel A. Esralew, Lorraine E. Flint, James H. Thorne, Ryan Boynton, Alan L. FlintEffects of topoclimatic complexity on the composition of woody plant communities
Topography can create substantial environmental variation at fine spatial scales. Shaped by slope, aspect, hill-position and elevation, topoclimate heterogeneity may increase ecological diversity, and act as a spatial buffer for vegetation responding to climate change. Strong links have been observed between climate heterogeneity and species diversity at broader scales, but the importance of topocAuthorsMeagan F. Oldfather, Matthew N. Britton, Prahlad D. Papper, Michael J. Koontz, Michelle M. Halbur, Celeste Dodge, Alan L. Flint, Lorraine E. Flint, David D. AckerlyHigh and dry: high elevations disproportionately exposed to regional climate change in Mediterranean-climate landscapes
Context Predicting climate-driven species’ range shifts depends substantially on species’ exposure to climate change. Mountain landscapes contain a wide range of topoclimates and soil characteristics that are thought to mediate range shifts and buffer species’ exposure. Quantifying fine-scale patterns of exposure across mountainous terrain is a key step in understanding vulnerability of species tAuthorsIan M. McCullough, Frank W. Davis, John R. Dingman, Lorraine E. Flint, Alan L. Flint, Josep M. Serra-Diaz, Alexandra D. Syphard, Max A. Moritz, Lee Hannah, Janet FranklinHydrogeology, hydrologic effects of development, and simulation of groundwater flow in the Borrego Valley, San Diego County, California
Executive Summary The Borrego Valley is a small valley (110 square miles) in the northeastern part of San Diego County, California. Although the valley is about 60 miles northeast of city of San Diego, it is separated from the Pacific Ocean coast by the mountains to the west and is mostly within the boundaries of Anza-Borrego Desert State Park. From the time the basin was first settled, groundwateAuthorsClaudia C. Faunt, Christina L. Stamos, Lorraine E. Flint, Michael T. Wright, Matthew K. Burgess, Michelle Sneed, Justin T. Brandt, Peter Martin, Alissa L. CoesAveraged 30 year climate change projections mask opportunities for species establishment
No abstract available.AuthorsJosep M. Serra-Diaz, Janet Franklin, Lynn C. Sweet, Ian M. McCullough, Alexandra D. Syphard, Helen M. Regan, Lorraine E. Flint, Alan L. Flint, John Dingman, Max A. Moritz, Kelly T. Redmond, Lee Hannah, Frank W. DavisTree mortality predicted from drought-induced vascular damage
The projected responses of forest ecosystems to warming and drying associated with twenty-first-century climate change vary widely from resiliency to widespread tree mortality1, 2, 3. Current vegetation models lack the ability to account for mortality of overstorey trees during extreme drought owing to uncertainties in mechanisms and thresholds causing mortality4, 5. Here we assess the causes of tAuthorsWilliam R.L. Anderegg, Alan L. Flint, Cho-ying Huang, Lorraine E. Flint, Joseph A. Berry, Frank W. Davis, John S. Sperry, Christopher B. FieldTopographic, latitudinal and climatic distribution of Pinus coulteri: geographic range limits are not at the edge of the climate envelope
With changing climate, many species are projected to move poleward or to higher elevations to track suitable climates. The prediction that species will move poleward assumes that geographically marginal populations are at the edge of the species' climatic range. We studied Pinus coulteri from the center to the northern (poleward) edge of its range, and examined three scenarios regarding the relatiAuthorsNathalie I. Chardon, William K. Cornwell, Lorraine E. Flint, Alan L. Flint, David D. Ackerly