Steven F. Railsback
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View article: Including predation risk in mechanistic habitat assessment models for stream fish
Including predation risk in mechanistic habitat assessment models for stream fish Open
Mechanistic habitat assessment models have long been used for stream fish, especially drift-feeding salmonids. Most of these models assess habitat value as the rate of net energy intake (growth) obtained by a fish feeding in a habitat unit…
View article: Empirical ecology to support mechanistic modelling: Different objectives, better approaches and unique benefits
Empirical ecology to support mechanistic modelling: Different objectives, better approaches and unique benefits Open
Modern ecological management problems are characterized by large scales, rapid environmental change, multiple stressors and conflicts between local and global conservation objectives. These problems are too complex to address with field st…
View article: Model evaluation of Stage 0 river treatment on juvenile spring Chinook in the South Fork McKenzie River, Oregon
Model evaluation of Stage 0 river treatment on juvenile spring Chinook in the South Fork McKenzie River, Oregon Open
Low‐tech river habitat restoration techniques, including Stage 0 treatments, are increasingly applied but often lack robust evaluation of their effects and benefits. In 2018, 1 km of the South Fork McKenzie (SFMK) River, Oregon was modifie…
View article: Behavioural plasticity in circadian foraging patterns increases resistance of brown trout populations to environmental change
Behavioural plasticity in circadian foraging patterns increases resistance of brown trout populations to environmental change Open
Stream-dwelling salmonids in the low-latitude and -altitude margins of their range are particularly threatened by climate change. However, they possess a variety of evolutionary, plastic, and behavioural mechanisms that provide resistance …
View article: Representing mortality risk in mechanistic models
Representing mortality risk in mechanistic models Open
Mortality risk is a critical and complex component of individual fitness and individual-based ecology, especially when risk-avoidance behaviors are considered. Organisms are subject to multiple kinds of risk that can vary with habitat, tim…
View article: Influence of personality traits on the response of a modelled population of stream-dwelling rainbow trout (Oncorhynchus mykiss) to microplastics consumption
Influence of personality traits on the response of a modelled population of stream-dwelling rainbow trout (Oncorhynchus mykiss) to microplastics consumption Open
Microplastics in freshwater habitats are consumed by fish, including stream-dwelling salmonids, which can alter food consumption or negatively affect swimming and foraging behaviour. As population-level effects are largely unknown, a popul…
View article: A manifesto for Individual-based Ecology
A manifesto for Individual-based Ecology Open
Ecology traditionally has been fragmented into separate branches that emphasise different localities, ecosystems, habitats, levels of organisation, applications, etc., and that use distinct terminologies and methods. Individual-based ecolo…
View article: Mechanisms linking river flow regime and riparian hardwood establishment
Mechanisms linking river flow regime and riparian hardwood establishment Open
The dominant conceptual model for how river flow affects when and where riparian hardwood trees establish (the “recruitment box model”) considers streamflow recession and a survivable rate of stage decline to predict survival of seedling d…
View article: Using the ODD protocol and NetLogo to replicate agent-based models
Using the ODD protocol and NetLogo to replicate agent-based models Open
View article: inSALMO Application - Model evaluation of Stage 0 treatment on juvenile spring Chinook in the South Fork McKenzie River, Oregon.
inSALMO Application - Model evaluation of Stage 0 treatment on juvenile spring Chinook in the South Fork McKenzie River, Oregon. Open
View article: Sustaining high-value salmonid populations in regulated rivers: Insights from individual-based modelling of brown trout and Atlantic salmon
Sustaining high-value salmonid populations in regulated rivers: Insights from individual-based modelling of brown trout and Atlantic salmon Open
To combat climate change, societal pressure to develop fossil-free hydroelectricity is growing. There is a great need, however, for environmental assessment tools that can predict the effects of streamflow regulation on biodiversity in hyd…
View article: Premises for a digital twin of the Atlantic salmon in its world: Agency, robustness, subjectivity and prediction
Premises for a digital twin of the Atlantic salmon in its world: Agency, robustness, subjectivity and prediction Open
Aquaculture of Atlantic salmon Salmo salar is in transition to precision fish farming and digitalization. As it is easier, cheaper and safer to study a digital replica than the system itself, a model of the fish can potentially improve mon…
View article: Can thermal refuges save salmonids? Simulation of cold-pool benefits to salmonid populations
Can thermal refuges save salmonids? Simulation of cold-pool benefits to salmonid populations Open
Objective The literature on thermal refuges has focused on when fish use what kinds of refuge, but we address how refuge availability and characteristics affect population abundance and persistence under warming. Methods Population benefit…
View article: Modifying and Parameterizing the Individual-Based Model Instream for Atlantic Salmon and Brown Trout in the Regulated Gullspång River, Sweden
Modifying and Parameterizing the Individual-Based Model Instream for Atlantic Salmon and Brown Trout in the Regulated Gullspång River, Sweden Open
View article: Modifying and parameterizing the individual-based model inSTREAM for Atlantic salmon and brown trout in the regulated Gullspång River, Sweden
Modifying and parameterizing the individual-based model inSTREAM for Atlantic salmon and brown trout in the regulated Gullspång River, Sweden Open
View article: InSTREAM 7 user manual: model description, software guide, and application guide
InSTREAM 7 user manual: model description, software guide, and application guide Open
InSTREAM is a simulation model designed to support river management decisions.InSTREAM 7 is a major revision of the individual-based stream trout model we developed and have used for over 20 years.This user manual provides background infor…
View article: Model software and input for simulation of thermal refuge effects on stream trout populations
Model software and input for simulation of thermal refuge effects on stream trout populations Open
Model software and input for the manuscript Can thermal refuges save salmonids? A simulation study, by S. F. Railsback and B.C. Harvey, submitted to Canadian Journal of Fisheries and Aquatic Sciences, 2022. The model runs …
View article: Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river
Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river Open
We developed an individual‐based model (IBM) to understand the effects of hydropeaking on growth, survival and distribution of age 0+ to 1+ juveniles for high‐conservation value populations of native brown trout ( Salmo trutta ) and Atlant…
View article: Modeling Atlantic salmon (Salmo salar) and brown trout (S. trutta) population responses and interactions under increased minimum flow in a regulated river
Modeling Atlantic salmon (Salmo salar) and brown trout (S. trutta) population responses and interactions under increased minimum flow in a regulated river Open
Describing and understanding the relationship between streamflow and ecological processes is a classic problem in stream ecology and river management. We applied the individual-based model inSTREAM to describe the relationship between the …
View article: Keeping modelling notebooks with TRACE: Good for you and good for environmental research and management support
Keeping modelling notebooks with TRACE: Good for you and good for environmental research and management support Open
View article: Contingent trade-off decisions with feedbacks in cyclical environments: testing alternative theories
Contingent trade-off decisions with feedbacks in cyclical environments: testing alternative theories Open
Many animals make contingent decisions, such as when and where to feed, as trade-offs between growth and risk when these vary not only with activity and location but also 1) in cycles such as the daily light cycle and 2) with feedbacks due…
View article: Contents
Contents Open
View article: The ODD Protocol for Describing Agent-Based and Other Simulation Models: A Second Update to Improve Clarity, Replication, and Structural Realism
The ODD Protocol for Describing Agent-Based and Other Simulation Models: A Second Update to Improve Clarity, Replication, and Structural Realism Open
© 2020, University of Surrey. All rights reserved. The Overview, Design concepts and Details (ODD) protocol for describing Individual-and Agent-Based Models (ABMs) is now widely accepted and used to document such models in journal articles…
View article: Bridging Levels from Individuals to Communities and Ecosystems: Including Adaptive Behavior and Feedbacks in Ecological Theory and Models
Bridging Levels from Individuals to Communities and Ecosystems: Including Adaptive Behavior and Feedbacks in Ecological Theory and Models Open
Ecologists now recognize that the classical theory of population and community ecology is severely limited by its inability to represent the effects of individual adaptive behavior, but we are still looking for ways to accommodate adaptive…
View article: Eco‐evolutionary responses to recreational fishing under different harvest regulations
Eco‐evolutionary responses to recreational fishing under different harvest regulations Open
Harvesting alters demography and life histories of exploited populations, and there is mounting evidence that rapid phenotypic changes at the individual level can occur when harvest is intensive. Therefore, recreational fishing is expected…
View article: Predicting impacts of chemicals from organisms to ecosystem service delivery: A case study of endocrine disruptor effects on trout
Predicting impacts of chemicals from organisms to ecosystem service delivery: A case study of endocrine disruptor effects on trout Open
View article: A framework for predicting impacts on ecosystem services from (sub)organismal responses to chemicals
A framework for predicting impacts on ecosystem services from (sub)organismal responses to chemicals Open
Protection of ecosystem services is increasingly emphasized as a risk-assessment goal, but there are wide gaps between current ecological risk-assessment endpoints and potential effects on services provided by ecosystems. The authors prese…
View article: Improving Execution Speed of Models Implemented in NetLogo
Improving Execution Speed of Models Implemented in NetLogo Open
NetLogo has become a standard platform for agent-based simulation, yet there appears to be widespread
\nbelief that it is not suitable for large and complex models due to slow execution. Our experience does
\nnot support that belief. NetLo…
View article: Appendix B. Animations of simulation experiments.
Appendix B. Animations of simulation experiments. Open
Animations of simulation experiments.
View article: Appendix A. Individual-based model formulation for cutthroat trout, Little Jones Creek, California.
Appendix A. Individual-based model formulation for cutthroat trout, Little Jones Creek, California. Open
Individual-based model formulation for cutthroat trout, Little Jones Creek, California.