Helen Sofaer
Helen Sofaer is a Research Ecologist at the Pacific Island Ecosystems Research Center in Hawai‘i.
Science and Products
Filter Total Items: 30
Misleading prioritizations from modelling range shifts under climate change
AimConservation planning requires the prioritization of a subset of taxa and geographical locations to focus monitoring and management efforts. Integration of the threats and opportunities posed by climate change often relies on predictions from species distribution models, particularly for assessments of vulnerability or invasion risk for multiple taxa. We evaluated whether species distribution m
Authors
Helen Sofaer, Catherine S. Jarnevich, Curtis H. Flather
Projecting species’ vulnerability to climate change: Which uncertainty sources matter most and extrapolate best?
Species distribution models (SDMs) are commonly used to assess potential climate change impacts on biodiversity, but several critical methodological decisions are often made arbitrarily. We compare variability arising from these decisions to the uncertainty in future climate change itself. We also test whether certain choices offer improved skill for extrapolating to a changed climate and whether
Authors
Valerie Steen, Helen Sofaer, Susan K. Skagen, Andrea J. Ray, Barry R. Noon
The relationship between female brooding and male nestling provisioning: does climate underlie geographic variation in sex roles?
Comparative studies of populations occupying different environments can provide insights into the ecological conditions affecting differences in parental strategies, including the relative contributions of males and females. Male and female parental strategies reflect the interplay between ecological conditions, the contributions of the social mate, and the needs of offspring. Climate is expected
Authors
Jongmin Yoon, Helen Sofaer, T. Scott Sillett, Scott A. Morrison, Cameron K. Ghalambor
Accounting for sampling patterns reverses the relative importance of trade and climate for the global sharing of exotic plants
AimThe distributions of exotic species reflect patterns of human-mediated dispersal, species climatic tolerances and a suite of other biotic and abiotic factors. The relative importance of each of these factors will shape how the spread of exotic species is affected by ongoing economic globalization and climate change. However, patterns of trade may be correlated with variation in scientific sampl
Authors
Helen Sofaer, Catherine S. Jarnevich
Designing ecological climate change impact assessments to reflect key climatic drivers
Identifying the climatic drivers of an ecological system is a key step in assessing its vulnerability to climate change. The climatic dimensions to which a species or system is most sensitive – such as means or extremes – can guide methodological decisions for projections of ecological impacts and vulnerabilities. However, scientific workflows for combining climate projections with ecological mode
Authors
Helen Sofaer, Joseph J. Barsugli, Catherine S. Jarnevich, John T. Abatzoglou, Marian Talbert, Brian W. Miller, Jeffrey T. Morisette
Projected wetland densities under climate change: Habitat loss but little geographic shift in conservation strategy
Climate change poses major challenges for conservation and management because it alters the area, quality, and spatial distribution of habitat for natural populations. To assess species’ vulnerability to climate change and target ongoing conservation investments, researchers and managers often consider the effects of projected changes in climate and land use on future habitat availability and qual
Authors
Helen Sofaer, Susan K. Skagen, Joseph J. Barsugli, Benjamin S. Rashford, Gordon C. Reese, Jennifer A. Hoeting, Andrew W. Wood, Barry R. Noon
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Science and Products
Filter Total Items: 30
Misleading prioritizations from modelling range shifts under climate change
AimConservation planning requires the prioritization of a subset of taxa and geographical locations to focus monitoring and management efforts. Integration of the threats and opportunities posed by climate change often relies on predictions from species distribution models, particularly for assessments of vulnerability or invasion risk for multiple taxa. We evaluated whether species distribution m
Authors
Helen Sofaer, Catherine S. Jarnevich, Curtis H. Flather
Projecting species’ vulnerability to climate change: Which uncertainty sources matter most and extrapolate best?
Species distribution models (SDMs) are commonly used to assess potential climate change impacts on biodiversity, but several critical methodological decisions are often made arbitrarily. We compare variability arising from these decisions to the uncertainty in future climate change itself. We also test whether certain choices offer improved skill for extrapolating to a changed climate and whether
Authors
Valerie Steen, Helen Sofaer, Susan K. Skagen, Andrea J. Ray, Barry R. Noon
The relationship between female brooding and male nestling provisioning: does climate underlie geographic variation in sex roles?
Comparative studies of populations occupying different environments can provide insights into the ecological conditions affecting differences in parental strategies, including the relative contributions of males and females. Male and female parental strategies reflect the interplay between ecological conditions, the contributions of the social mate, and the needs of offspring. Climate is expected
Authors
Jongmin Yoon, Helen Sofaer, T. Scott Sillett, Scott A. Morrison, Cameron K. Ghalambor
Accounting for sampling patterns reverses the relative importance of trade and climate for the global sharing of exotic plants
AimThe distributions of exotic species reflect patterns of human-mediated dispersal, species climatic tolerances and a suite of other biotic and abiotic factors. The relative importance of each of these factors will shape how the spread of exotic species is affected by ongoing economic globalization and climate change. However, patterns of trade may be correlated with variation in scientific sampl
Authors
Helen Sofaer, Catherine S. Jarnevich
Designing ecological climate change impact assessments to reflect key climatic drivers
Identifying the climatic drivers of an ecological system is a key step in assessing its vulnerability to climate change. The climatic dimensions to which a species or system is most sensitive – such as means or extremes – can guide methodological decisions for projections of ecological impacts and vulnerabilities. However, scientific workflows for combining climate projections with ecological mode
Authors
Helen Sofaer, Joseph J. Barsugli, Catherine S. Jarnevich, John T. Abatzoglou, Marian Talbert, Brian W. Miller, Jeffrey T. Morisette
Projected wetland densities under climate change: Habitat loss but little geographic shift in conservation strategy
Climate change poses major challenges for conservation and management because it alters the area, quality, and spatial distribution of habitat for natural populations. To assess species’ vulnerability to climate change and target ongoing conservation investments, researchers and managers often consider the effects of projected changes in climate and land use on future habitat availability and qual
Authors
Helen Sofaer, Susan K. Skagen, Joseph J. Barsugli, Benjamin S. Rashford, Gordon C. Reese, Jennifer A. Hoeting, Andrew W. Wood, Barry R. Noon
Filter Total Items: 15
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