Stephanie Romañach, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 37
Filter Total Items: 33
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Maximizing the social and ecological value of Cape Romain National Wildlife Refuge, South Carolina as the effects of global change processes increase. Maximizing the social and ecological value of Cape Romain National Wildlife Refuge, South Carolina as the effects of global change processes increase.
Coastal ecosystems in the eastern U.S. have been severely altered by processes associated with human development, including drainage of coastal wetlands, changes in hydrology that alter sediment and freshwater delivery to the coast, land clearing, agricultural and forestry activity, and the construction of seawalls and other structures that “harden” the coast. Sea-level rise and the...
Authors
Raye Nilius, Sarah Dawsey, Mitchell J. Eaton, Julien Martin, Stephanie S. Romanach, Suzanne Baird, Michael Bryant, David J. Case, Fred A. Johnson, Gerard McMahon, Nancy Pau, Elizabeth Pienaar, Mary Ratnaswamy, Steven Seibert, Pamela Wingrove, Nathan J. Wood
A visualization tool to support decision making in environmental and biological planning A visualization tool to support decision making in environmental and biological planning
Large-scale ecosystem management involves consideration of many factors for informed decision making. The EverVIEW Data Viewer is a cross-platform desktop decision support tool to help decision makers compare simulation model outputs from competing plans for restoring Florida's Greater Everglades. The integration of NetCDF metadata conventions into EverVIEW allows end-users from multiple
Authors
Stephanie S. Romañach, Mark McKelvy, Craig Conzelmann, Kevin J. Suir
Using scenario planning to evaluate the impacts of climate change on wildlife populations and communities in the Florida Everglades Using scenario planning to evaluate the impacts of climate change on wildlife populations and communities in the Florida Everglades
It is uncertain how climate change will impact hydrologic drivers of wildlife population dynamics in freshwater wetlands of the Florida Everglades, or how to accommodate this uncertainty in restoration decisions. Using projections of climate scenarios for the year 2060, we evaluated how several possible futures could affect wildlife populations (wading birds, fish, alligators, native...
Authors
Christopher P. Catano, Stephanie S. Romañach, James M. Beerens, Leonard G. Pearlstine, Laura A. Brandt, Kristen M. Hart, Frank J. Mazzotti, Joel C. Trexler
Comparing species distribution models constructed with different subsets of environmental predictors Comparing species distribution models constructed with different subsets of environmental predictors
Aim To assess the usefulness of combining climate predictors with additional types of environmental predictors in species distribution models for range-restricted species, using common correlative species distribution modelling approaches. Location Florida, USA Methods We used five different algorithms to create distribution models for 14 vertebrate species, using seven different...
Authors
David N. Bucklin, Mathieu Basille, Allison M. Benscoter, Laura A. Brandt, Frank J. Mazzotti, Stephanie S. Romañach, Carolina Speroterra, James I. Watling
Assessing effects of variation in global climate data sets on spatial predictions from climate envelope models Assessing effects of variation in global climate data sets on spatial predictions from climate envelope models
Climate change poses new challenges for natural resource managers. Predictive modeling of species–environment relationships using climate envelope models can enhance our understanding of climate change effects on biodiversity, assist in assessment of invasion risk by exotic organisms, and inform life-history understanding of individual species. While increasing interest has focused on...
Authors
Stephanie S. Romanach, James I. Watling, Robert J. Fletcher, Carolina Speroterra, David N. Bucklin, Laura A. Brandt, Leonard G. Pearlstine, Yesenia Escribano, Frank J. Mazzotti
Validating predictions from climate envelope models Validating predictions from climate envelope models
Climate envelope models are a potentially important conservation tool, but their ability to accurately forecast species’ distributional shifts using independent survey data has not been fully evaluated. We created climate envelope models for 12 species of North American breeding birds previously shown to have experienced poleward range shifts. For each species, we evaluated three...
Authors
J. Watling, D. Bucklin, C. Speroterra, L. Brandt, C. Cabal, Stephanie S. Romañach, Frank J. Mazzotti
Threatened and endangered subspecies with vulnerable ecological traits Also have high susceptibility to sea level rise and habitat fragmentation Threatened and endangered subspecies with vulnerable ecological traits Also have high susceptibility to sea level rise and habitat fragmentation
The presence of multiple interacting threats to biodiversity and the increasing rate of species extinction make it critical to prioritize management efforts on species and communities that maximize conservation success. We implemented a multi-step approach that coupled vulnerability assessments evaluating threats to Florida taxa such as climate change, sea-level rise, and habitat...
Authors
Allison M. Benscoter, Joshua S. Reece, Reed F. Noss, Laura B. Brandt, Frank J. Mazzotti, Stephanie S. Romañach, James I. Watling
Climate downscaling effects on predictive ecological models: a case study for threatened and endangered vertebrates in the southeastern United States Climate downscaling effects on predictive ecological models: a case study for threatened and endangered vertebrates in the southeastern United States
High-resolution (downscaled) projections of future climate conditions are critical inputs to a wide variety of ecological and socioeconomic models and are created using numerous different approaches. Here, we conduct a sensitivity analysis of spatial predictions from climate envelope models for threatened and endangered vertebrates in the southeastern United States to determine whether...
Authors
David N. Bucklin, James I. Watling, Carolina Speroterra, Laura A. Brandt, Frank J. Mazzotti, Stephanie S. Romañach
Use and interpretation of climate envelope models: a practical guide Use and interpretation of climate envelope models: a practical guide
This guidebook is intended to provide a practical overview of climate envelope modeling for conservation professionals and natural resource managers. The material is intended for people with little background or experience in climate envelope modeling who want to better understand and interpret models developed by others and the results generated by such models, or want to do some...
Authors
James I. Watling, Laura A. Brandt, Frank J. Mazzotti, Stephanie S. Romañach
Do bioclimate variables improve performance of climate envelope models? Do bioclimate variables improve performance of climate envelope models?
Climate envelope models are widely used to forecast potential effects of climate change on species distributions. A key issue in climate envelope modeling is the selection of predictor variables that most directly influence species. To determine whether model performance and spatial predictions were related to the selection of predictor variables, we compared models using bioclimate...
Authors
James I. Watling, Stephanie S. Romañach, David N. Bucklin, Carolina Speroterra, Laura A. Brandt, Leonard G. Pearlstine, Frank J. Mazzotti
The American crocodile in Biscayne Bay, Florida The American crocodile in Biscayne Bay, Florida
Intensive crocodile monitoring programs conducted during the late 1970s and early 1980s in southern Florida resulted in an optimistic outlook for recovery of the protected species population. However, some areas with suitable crocodile habitat were not investigated, such as Biscayne Bay and the mainland shorelines of Barnes and Card Sounds. The objective of our study was to determine...
Authors
Michael S. Cherkiss, Stephanie S. Romañach, Frank J. Mazzotti
Joint Ecosystem Modeling (JEM) ecological model documentation volume 2: roseate spoonbill (Platalea ajaja) landscape habitat suitability index v1.0.0 Joint Ecosystem Modeling (JEM) ecological model documentation volume 2: roseate spoonbill (Platalea ajaja) landscape habitat suitability index v1.0.0
Ecological conditions in the Greater Everglades have changed due to human activities, including the construction of canals to divert water away from the core of the landscape. Current and planned restoration projects are designed to produce a natural sheetflow of water across the landscape. This restoration of water flow should provide an increase in freshwater needed to restore natural...
Authors
Stephanie S. Romañach, Craig Conzelmann, Adam Daugherty, Jerome J. Lorenz, Christina Hunnicutt, Frank J. Mazzotti
Non-USGS Publications**
Lindsey, P.A., Havemann, C.P., Lines, R.M., Price, A.E., Retief, T.A., Rhebergen, T., Van der Waal, C. and Romañach, S.S., 2013. Benefits of wildlife-based land uses on private lands in Namibia and limitations affecting their development. Oryx, 47(01), pp.41-53.
Romañach, S.S., Lindsey, P.A. and Woodroffe, R., 2010. Attitudes toward predators and options for their conservation in the Ewaso Ecosystem. A Chronology of Middle Missouri Plains Village Sites, 85.
Lindsey, Peter Andrew, S. S. Romanach, S. Matema, C. Matema, I. Mupamhadzi, and J. Muvengwi. "Dynamics and underlying causes of illegal bushmeat trade in Zimbabwe." Oryx 45, no. 01 (2011): 84-95.
Lindsey, Peter Andrew, S. S. Romanach, Craig J. Tambling, K. Chartier, and R. Groom. "Ecological and financial impacts of illegal bushmeat trade in Zimbabwe." Oryx 45, no. 01 (2011): 96-111.
Lindsey, P. A., S. S. Romanach, and H. T. Davies‐Mostert. "The importance of conservancies for enhancing the value of game ranch land for large mammal conservation in southern Africa." Journal of Zoology 277, no. 2 (2009): 99-105.
Lindsey, P., Romanach, S., Romanach, S.S. and Davies-Mostert, H., 2009. A synthesis of early indicators of the drivers of predator conservation on private lands in south africa. Anonymous Reintroduction of Top-Order Predators.: Wiley-Blackwell, pp.321-344.
Lindsey, P.A., du Toit, R., Pole, A. and Romañach, S., 2008. Savé Valley Conservancy: a large-scale African experiment in cooperative wildlife management. Evolution and innovation in wildlife conservation: parks and game ranches to transfrontier conservation areas, pp.163-184.
Romañach, S.S. and Lindsey, P.A., 2008. Conservation implications of prey responses to wild dogs Lycaon pictus during the denning season on wildlife ranches. Animal conservation, 11(2), pp.111-117.
Romanach, S.S., Lindsey, P.A. and Woodroffe, R., 2007. Determinants of attitudes towards predators in central Kenya and suggestions for increasing tolerance in livestock dominated landscapes. Oryx, 41(02), pp.185-195.
Romanach, S.S., Seabloom, E.W. and Reichman, O.J., 2007. Costs and benefits of pocket gopher foraging: Linking behavior and physiology. Ecology, 88(8), pp.2047-2057.
Georgiadis, N.J., Olwero, J.N. and Romañach, S.S., 2007. Savanna herbivore dynamics in a livestock-dominated landscape: I. Dependence on land use, rainfall, density, and time. Biological conservation, 137(3), pp.461-472.
Georgiadis, N.J., Ihwagi, F., Olwero, J.N. and Romañach, S.S., 2007. Savanna herbivore dynamics in a livestock-dominated landscape. II: Ecological, conservation, and management implications of predator restoration. Biological Conservation, 137(3), pp.473-483.
Lindsey, P.A., Roulet, P.A. and Romanach, S.S., 2007. Economic and conservation significance of the trophy hunting industry in sub-Saharan Africa. Biological conservation, 134(4), pp.455-469.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 37
Filter Total Items: 33
No Result Found
Filter Total Items: 63
Maximizing the social and ecological value of Cape Romain National Wildlife Refuge, South Carolina as the effects of global change processes increase. Maximizing the social and ecological value of Cape Romain National Wildlife Refuge, South Carolina as the effects of global change processes increase.
Coastal ecosystems in the eastern U.S. have been severely altered by processes associated with human development, including drainage of coastal wetlands, changes in hydrology that alter sediment and freshwater delivery to the coast, land clearing, agricultural and forestry activity, and the construction of seawalls and other structures that “harden” the coast. Sea-level rise and the...
Authors
Raye Nilius, Sarah Dawsey, Mitchell J. Eaton, Julien Martin, Stephanie S. Romanach, Suzanne Baird, Michael Bryant, David J. Case, Fred A. Johnson, Gerard McMahon, Nancy Pau, Elizabeth Pienaar, Mary Ratnaswamy, Steven Seibert, Pamela Wingrove, Nathan J. Wood
A visualization tool to support decision making in environmental and biological planning A visualization tool to support decision making in environmental and biological planning
Large-scale ecosystem management involves consideration of many factors for informed decision making. The EverVIEW Data Viewer is a cross-platform desktop decision support tool to help decision makers compare simulation model outputs from competing plans for restoring Florida's Greater Everglades. The integration of NetCDF metadata conventions into EverVIEW allows end-users from multiple
Authors
Stephanie S. Romañach, Mark McKelvy, Craig Conzelmann, Kevin J. Suir
Using scenario planning to evaluate the impacts of climate change on wildlife populations and communities in the Florida Everglades Using scenario planning to evaluate the impacts of climate change on wildlife populations and communities in the Florida Everglades
It is uncertain how climate change will impact hydrologic drivers of wildlife population dynamics in freshwater wetlands of the Florida Everglades, or how to accommodate this uncertainty in restoration decisions. Using projections of climate scenarios for the year 2060, we evaluated how several possible futures could affect wildlife populations (wading birds, fish, alligators, native...
Authors
Christopher P. Catano, Stephanie S. Romañach, James M. Beerens, Leonard G. Pearlstine, Laura A. Brandt, Kristen M. Hart, Frank J. Mazzotti, Joel C. Trexler
Comparing species distribution models constructed with different subsets of environmental predictors Comparing species distribution models constructed with different subsets of environmental predictors
Aim To assess the usefulness of combining climate predictors with additional types of environmental predictors in species distribution models for range-restricted species, using common correlative species distribution modelling approaches. Location Florida, USA Methods We used five different algorithms to create distribution models for 14 vertebrate species, using seven different...
Authors
David N. Bucklin, Mathieu Basille, Allison M. Benscoter, Laura A. Brandt, Frank J. Mazzotti, Stephanie S. Romañach, Carolina Speroterra, James I. Watling
Assessing effects of variation in global climate data sets on spatial predictions from climate envelope models Assessing effects of variation in global climate data sets on spatial predictions from climate envelope models
Climate change poses new challenges for natural resource managers. Predictive modeling of species–environment relationships using climate envelope models can enhance our understanding of climate change effects on biodiversity, assist in assessment of invasion risk by exotic organisms, and inform life-history understanding of individual species. While increasing interest has focused on...
Authors
Stephanie S. Romanach, James I. Watling, Robert J. Fletcher, Carolina Speroterra, David N. Bucklin, Laura A. Brandt, Leonard G. Pearlstine, Yesenia Escribano, Frank J. Mazzotti
Validating predictions from climate envelope models Validating predictions from climate envelope models
Climate envelope models are a potentially important conservation tool, but their ability to accurately forecast species’ distributional shifts using independent survey data has not been fully evaluated. We created climate envelope models for 12 species of North American breeding birds previously shown to have experienced poleward range shifts. For each species, we evaluated three...
Authors
J. Watling, D. Bucklin, C. Speroterra, L. Brandt, C. Cabal, Stephanie S. Romañach, Frank J. Mazzotti
Threatened and endangered subspecies with vulnerable ecological traits Also have high susceptibility to sea level rise and habitat fragmentation Threatened and endangered subspecies with vulnerable ecological traits Also have high susceptibility to sea level rise and habitat fragmentation
The presence of multiple interacting threats to biodiversity and the increasing rate of species extinction make it critical to prioritize management efforts on species and communities that maximize conservation success. We implemented a multi-step approach that coupled vulnerability assessments evaluating threats to Florida taxa such as climate change, sea-level rise, and habitat...
Authors
Allison M. Benscoter, Joshua S. Reece, Reed F. Noss, Laura B. Brandt, Frank J. Mazzotti, Stephanie S. Romañach, James I. Watling
Climate downscaling effects on predictive ecological models: a case study for threatened and endangered vertebrates in the southeastern United States Climate downscaling effects on predictive ecological models: a case study for threatened and endangered vertebrates in the southeastern United States
High-resolution (downscaled) projections of future climate conditions are critical inputs to a wide variety of ecological and socioeconomic models and are created using numerous different approaches. Here, we conduct a sensitivity analysis of spatial predictions from climate envelope models for threatened and endangered vertebrates in the southeastern United States to determine whether...
Authors
David N. Bucklin, James I. Watling, Carolina Speroterra, Laura A. Brandt, Frank J. Mazzotti, Stephanie S. Romañach
Use and interpretation of climate envelope models: a practical guide Use and interpretation of climate envelope models: a practical guide
This guidebook is intended to provide a practical overview of climate envelope modeling for conservation professionals and natural resource managers. The material is intended for people with little background or experience in climate envelope modeling who want to better understand and interpret models developed by others and the results generated by such models, or want to do some...
Authors
James I. Watling, Laura A. Brandt, Frank J. Mazzotti, Stephanie S. Romañach
Do bioclimate variables improve performance of climate envelope models? Do bioclimate variables improve performance of climate envelope models?
Climate envelope models are widely used to forecast potential effects of climate change on species distributions. A key issue in climate envelope modeling is the selection of predictor variables that most directly influence species. To determine whether model performance and spatial predictions were related to the selection of predictor variables, we compared models using bioclimate...
Authors
James I. Watling, Stephanie S. Romañach, David N. Bucklin, Carolina Speroterra, Laura A. Brandt, Leonard G. Pearlstine, Frank J. Mazzotti
The American crocodile in Biscayne Bay, Florida The American crocodile in Biscayne Bay, Florida
Intensive crocodile monitoring programs conducted during the late 1970s and early 1980s in southern Florida resulted in an optimistic outlook for recovery of the protected species population. However, some areas with suitable crocodile habitat were not investigated, such as Biscayne Bay and the mainland shorelines of Barnes and Card Sounds. The objective of our study was to determine...
Authors
Michael S. Cherkiss, Stephanie S. Romañach, Frank J. Mazzotti
Joint Ecosystem Modeling (JEM) ecological model documentation volume 2: roseate spoonbill (Platalea ajaja) landscape habitat suitability index v1.0.0 Joint Ecosystem Modeling (JEM) ecological model documentation volume 2: roseate spoonbill (Platalea ajaja) landscape habitat suitability index v1.0.0
Ecological conditions in the Greater Everglades have changed due to human activities, including the construction of canals to divert water away from the core of the landscape. Current and planned restoration projects are designed to produce a natural sheetflow of water across the landscape. This restoration of water flow should provide an increase in freshwater needed to restore natural...
Authors
Stephanie S. Romañach, Craig Conzelmann, Adam Daugherty, Jerome J. Lorenz, Christina Hunnicutt, Frank J. Mazzotti
Non-USGS Publications**
Lindsey, P.A., Havemann, C.P., Lines, R.M., Price, A.E., Retief, T.A., Rhebergen, T., Van der Waal, C. and Romañach, S.S., 2013. Benefits of wildlife-based land uses on private lands in Namibia and limitations affecting their development. Oryx, 47(01), pp.41-53.
Romañach, S.S., Lindsey, P.A. and Woodroffe, R., 2010. Attitudes toward predators and options for their conservation in the Ewaso Ecosystem. A Chronology of Middle Missouri Plains Village Sites, 85.
Lindsey, Peter Andrew, S. S. Romanach, S. Matema, C. Matema, I. Mupamhadzi, and J. Muvengwi. "Dynamics and underlying causes of illegal bushmeat trade in Zimbabwe." Oryx 45, no. 01 (2011): 84-95.
Lindsey, Peter Andrew, S. S. Romanach, Craig J. Tambling, K. Chartier, and R. Groom. "Ecological and financial impacts of illegal bushmeat trade in Zimbabwe." Oryx 45, no. 01 (2011): 96-111.
Lindsey, P. A., S. S. Romanach, and H. T. Davies‐Mostert. "The importance of conservancies for enhancing the value of game ranch land for large mammal conservation in southern Africa." Journal of Zoology 277, no. 2 (2009): 99-105.
Lindsey, P., Romanach, S., Romanach, S.S. and Davies-Mostert, H., 2009. A synthesis of early indicators of the drivers of predator conservation on private lands in south africa. Anonymous Reintroduction of Top-Order Predators.: Wiley-Blackwell, pp.321-344.
Lindsey, P.A., du Toit, R., Pole, A. and Romañach, S., 2008. Savé Valley Conservancy: a large-scale African experiment in cooperative wildlife management. Evolution and innovation in wildlife conservation: parks and game ranches to transfrontier conservation areas, pp.163-184.
Romañach, S.S. and Lindsey, P.A., 2008. Conservation implications of prey responses to wild dogs Lycaon pictus during the denning season on wildlife ranches. Animal conservation, 11(2), pp.111-117.
Romanach, S.S., Lindsey, P.A. and Woodroffe, R., 2007. Determinants of attitudes towards predators in central Kenya and suggestions for increasing tolerance in livestock dominated landscapes. Oryx, 41(02), pp.185-195.
Romanach, S.S., Seabloom, E.W. and Reichman, O.J., 2007. Costs and benefits of pocket gopher foraging: Linking behavior and physiology. Ecology, 88(8), pp.2047-2057.
Georgiadis, N.J., Olwero, J.N. and Romañach, S.S., 2007. Savanna herbivore dynamics in a livestock-dominated landscape: I. Dependence on land use, rainfall, density, and time. Biological conservation, 137(3), pp.461-472.
Georgiadis, N.J., Ihwagi, F., Olwero, J.N. and Romañach, S.S., 2007. Savanna herbivore dynamics in a livestock-dominated landscape. II: Ecological, conservation, and management implications of predator restoration. Biological Conservation, 137(3), pp.473-483.
Lindsey, P.A., Roulet, P.A. and Romanach, S.S., 2007. Economic and conservation significance of the trophy hunting industry in sub-Saharan Africa. Biological conservation, 134(4), pp.455-469.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.