James Cloern (Former Employee)
Science and Products
Filter Total Items: 104
It's time for bold new approaches to link delta science and policymaking It's time for bold new approaches to link delta science and policymaking
California’s Sacramento–San Joaquin Delta is widely recognized as a highly damaged ecosystem. The Delta is also emblematic of a growing sense worldwide that society needs to do a better job of using scientific knowledge to guide conservation and resource management policies. Fortunately, we now have an unprecedented opportunity to get it right in building structures that support...
Authors
James Cloern, Ellen Hanak
U.S. Geological Survey ecosystems science strategy—Advancing discovery and application through collaboration U.S. Geological Survey ecosystems science strategy—Advancing discovery and application through collaboration
Executive Summary Ecosystem science is critical to making informed decisions about natural resources that can sustain our Nation’s economic and environmental well-being. Resource managers and policymakers are faced with countless decisions each year at local, regional, and national levels on issues as diverse as renewable and nonrenewable energy development, agriculture, forestry, water...
Authors
Byron Williams, G. Lynn Wingard, Gary Brewer, James Cloern, Guy Gelfenbaum, Robert Jacobson, Jeffrey Kershner, Anthony McGuire, James D. Nichols, Carl Shapiro, Charles van Riper, Robin White
Drivers of change in estuarine-coastal ecosystems: Discoveries from four decades of study in San Francisco Bay Drivers of change in estuarine-coastal ecosystems: Discoveries from four decades of study in San Francisco Bay
Poised at the interface of rivers, ocean, atmosphere and dense human settlement, estuaries are driven by a large array of natural and anthropogenic forces. San Francisco Bay exemplifies the fast-paced change occurring in many of the world's estuaries, bays and inland seas in response to these diverse forces. We use observations from this particularly well-studied estuary to illustrate...
Authors
J. E. Cloern, A.D. Jassby
Perils of correlating CUSUM-transformed variables to infer ecological relationships (Breton et al. 2006; Glibert 2010) Perils of correlating CUSUM-transformed variables to infer ecological relationships (Breton et al. 2006; Glibert 2010)
We comment on a nonstandard statistical treatment of time-series data first published by Breton et al. (2006) in Limnology and Oceanography and, more recently, used by Glibert (2010) in Reviews in Fisheries Science. In both papers, the authors make strong inferences about the underlying causes of population variability based on correlations between cumulative sum (CUSUM) transformations...
Authors
James Cloern, Alan Jassby, Jacob Carstensen, William Bennett, Wim Kimmerer, Ralph Mac Nally, David H. Schoellhamer, Monika Winder
The U.S. Geological Survey Ecosystem Science Strategy, 2012-2022 - Advancing discovery and application through collaboration The U.S. Geological Survey Ecosystem Science Strategy, 2012-2022 - Advancing discovery and application through collaboration
Ecosystem science is critical to making informed decisions about natural resources that can sustain our Nation’s economic and environmental well-being. Resource managers and policy-makers are faced with countless decisions each year at local, state, tribal, territorial, and national levels on issues as diverse as renewable and non-renewable energy development, agriculture, forestry...
Authors
Byron Williams, G. Wingard, Gary Brewer, James Cloern, Guy Gelfenbaum, Robert Jacobson, Jeffrey Kershner, Anthony McGuire, James D. Nichols, Carl Shapiro, Charles van Riper, Robin White
Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change
Background Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding...
Authors
James Cloern, Noah Knowles, Larry Brown, Daniel Cayan, Michael D. Dettinger, Tara L. Morgan, David H. Schoellhamer, Mark T. Stacey, Mick van der Wegen, R. Wagner, Alan Jassby
Seasonal variations in ectotherm growth rates: Quantifying growth as an intermittent non steady state compensatory process Seasonal variations in ectotherm growth rates: Quantifying growth as an intermittent non steady state compensatory process
Generally, growth rates of living organisms are considered to be at steady state, varying only under environmental forcing factors. For example, these rates may be described as a function of light for plants or organic food resources for animals and these could be regulated (or not) by temperature or other conditions. But, what are the consequences for an individual's growth (and also...
Authors
J.-M. Guarini, Laurent Chauvaud, James Cloern, J. Clavier, J. Coston-Guarini, Y. Patry
Global patterns of phytoplankton dynamics in coastal ecosystems Global patterns of phytoplankton dynamics in coastal ecosystems
Scientific Committee on Ocean Research Working Group 137 Meeting; Hangzhou, China, 17-21 October 2010; Phytoplankton biomass and community structure have undergone dramatic changes in coastal ecosystems over the past several decades in response to climate variability and human disturbance. These changes have short- and long-term impacts on global carbon and nutrient cycling, food web...
Authors
H. Paerl, Kedong Yin, J. Cloern, James Cloern
Projected evolution of California's San Francisco bay-delta-river system in a century of climate change Projected evolution of California's San Francisco bay-delta-river system in a century of climate change
Background: Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding...
Authors
James Cloern, Noah Knowles, Larry Brown, Daniel Cayan, Michael D. Dettinger, Tara L. Morgan, David H. Schoellhamer, Mark T. Stacey, Mick Van der Wegen, R.W. Wagner, Alan Jassby
Biological communities in San Francisco Bay track large‐scale climate forcing over the North Pacific Biological communities in San Francisco Bay track large‐scale climate forcing over the North Pacific
Long‐term observations show that fish and plankton populations in the ocean fluctuate in synchrony with large‐scale climate patterns, but similar evidence is lacking for estuaries because of shorter observational records. Marine fish and invertebrates have been sampled in San Francisco Bay since 1980 and exhibit large, unexplained population changes including record‐high abundances of...
Authors
James Cloern, Kathryn Hieb, Teresa Jacobson, Bruno Sanso, Emanuele Di Lorenzo, Mark T. Stacey, John Largier, Wendy Meiring, William Peterson, Thomas Powell, Monika Winder, Alan Jassby
Patterns and scales of phytoplankton variability in estuarine: Coastal ecosystems Patterns and scales of phytoplankton variability in estuarine: Coastal ecosystems
Phytoplankton variability is a primary driver of chemical and biological dynamics in the coastal zone because it directly affects water quality, biogeochemical cycling of reactive elements, and food supply to consumer organisms. Much has been learned about patterns of phytoplankton variability within individual ecosystems, but patterns have not been compared across the diversity of...
Authors
James Cloern, Alan Jassby
Science and Products
Filter Total Items: 104
It's time for bold new approaches to link delta science and policymaking It's time for bold new approaches to link delta science and policymaking
California’s Sacramento–San Joaquin Delta is widely recognized as a highly damaged ecosystem. The Delta is also emblematic of a growing sense worldwide that society needs to do a better job of using scientific knowledge to guide conservation and resource management policies. Fortunately, we now have an unprecedented opportunity to get it right in building structures that support...
Authors
James Cloern, Ellen Hanak
U.S. Geological Survey ecosystems science strategy—Advancing discovery and application through collaboration U.S. Geological Survey ecosystems science strategy—Advancing discovery and application through collaboration
Executive Summary Ecosystem science is critical to making informed decisions about natural resources that can sustain our Nation’s economic and environmental well-being. Resource managers and policymakers are faced with countless decisions each year at local, regional, and national levels on issues as diverse as renewable and nonrenewable energy development, agriculture, forestry, water...
Authors
Byron Williams, G. Lynn Wingard, Gary Brewer, James Cloern, Guy Gelfenbaum, Robert Jacobson, Jeffrey Kershner, Anthony McGuire, James D. Nichols, Carl Shapiro, Charles van Riper, Robin White
Drivers of change in estuarine-coastal ecosystems: Discoveries from four decades of study in San Francisco Bay Drivers of change in estuarine-coastal ecosystems: Discoveries from four decades of study in San Francisco Bay
Poised at the interface of rivers, ocean, atmosphere and dense human settlement, estuaries are driven by a large array of natural and anthropogenic forces. San Francisco Bay exemplifies the fast-paced change occurring in many of the world's estuaries, bays and inland seas in response to these diverse forces. We use observations from this particularly well-studied estuary to illustrate...
Authors
J. E. Cloern, A.D. Jassby
Perils of correlating CUSUM-transformed variables to infer ecological relationships (Breton et al. 2006; Glibert 2010) Perils of correlating CUSUM-transformed variables to infer ecological relationships (Breton et al. 2006; Glibert 2010)
We comment on a nonstandard statistical treatment of time-series data first published by Breton et al. (2006) in Limnology and Oceanography and, more recently, used by Glibert (2010) in Reviews in Fisheries Science. In both papers, the authors make strong inferences about the underlying causes of population variability based on correlations between cumulative sum (CUSUM) transformations...
Authors
James Cloern, Alan Jassby, Jacob Carstensen, William Bennett, Wim Kimmerer, Ralph Mac Nally, David H. Schoellhamer, Monika Winder
The U.S. Geological Survey Ecosystem Science Strategy, 2012-2022 - Advancing discovery and application through collaboration The U.S. Geological Survey Ecosystem Science Strategy, 2012-2022 - Advancing discovery and application through collaboration
Ecosystem science is critical to making informed decisions about natural resources that can sustain our Nation’s economic and environmental well-being. Resource managers and policy-makers are faced with countless decisions each year at local, state, tribal, territorial, and national levels on issues as diverse as renewable and non-renewable energy development, agriculture, forestry...
Authors
Byron Williams, G. Wingard, Gary Brewer, James Cloern, Guy Gelfenbaum, Robert Jacobson, Jeffrey Kershner, Anthony McGuire, James D. Nichols, Carl Shapiro, Charles van Riper, Robin White
Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change
Background Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding...
Authors
James Cloern, Noah Knowles, Larry Brown, Daniel Cayan, Michael D. Dettinger, Tara L. Morgan, David H. Schoellhamer, Mark T. Stacey, Mick van der Wegen, R. Wagner, Alan Jassby
Seasonal variations in ectotherm growth rates: Quantifying growth as an intermittent non steady state compensatory process Seasonal variations in ectotherm growth rates: Quantifying growth as an intermittent non steady state compensatory process
Generally, growth rates of living organisms are considered to be at steady state, varying only under environmental forcing factors. For example, these rates may be described as a function of light for plants or organic food resources for animals and these could be regulated (or not) by temperature or other conditions. But, what are the consequences for an individual's growth (and also...
Authors
J.-M. Guarini, Laurent Chauvaud, James Cloern, J. Clavier, J. Coston-Guarini, Y. Patry
Global patterns of phytoplankton dynamics in coastal ecosystems Global patterns of phytoplankton dynamics in coastal ecosystems
Scientific Committee on Ocean Research Working Group 137 Meeting; Hangzhou, China, 17-21 October 2010; Phytoplankton biomass and community structure have undergone dramatic changes in coastal ecosystems over the past several decades in response to climate variability and human disturbance. These changes have short- and long-term impacts on global carbon and nutrient cycling, food web...
Authors
H. Paerl, Kedong Yin, J. Cloern, James Cloern
Projected evolution of California's San Francisco bay-delta-river system in a century of climate change Projected evolution of California's San Francisco bay-delta-river system in a century of climate change
Background: Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding...
Authors
James Cloern, Noah Knowles, Larry Brown, Daniel Cayan, Michael D. Dettinger, Tara L. Morgan, David H. Schoellhamer, Mark T. Stacey, Mick Van der Wegen, R.W. Wagner, Alan Jassby
Biological communities in San Francisco Bay track large‐scale climate forcing over the North Pacific Biological communities in San Francisco Bay track large‐scale climate forcing over the North Pacific
Long‐term observations show that fish and plankton populations in the ocean fluctuate in synchrony with large‐scale climate patterns, but similar evidence is lacking for estuaries because of shorter observational records. Marine fish and invertebrates have been sampled in San Francisco Bay since 1980 and exhibit large, unexplained population changes including record‐high abundances of...
Authors
James Cloern, Kathryn Hieb, Teresa Jacobson, Bruno Sanso, Emanuele Di Lorenzo, Mark T. Stacey, John Largier, Wendy Meiring, William Peterson, Thomas Powell, Monika Winder, Alan Jassby
Patterns and scales of phytoplankton variability in estuarine: Coastal ecosystems Patterns and scales of phytoplankton variability in estuarine: Coastal ecosystems
Phytoplankton variability is a primary driver of chemical and biological dynamics in the coastal zone because it directly affects water quality, biogeochemical cycling of reactive elements, and food supply to consumer organisms. Much has been learned about patterns of phytoplankton variability within individual ecosystems, but patterns have not been compared across the diversity of...
Authors
James Cloern, Alan Jassby