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A synthesis of contemporary analytical and modeling approaches in population ecology
The book provides an overview of the key analytical approaches that are currently used in demographic, genetic, and spatial analyses in population ecology. The chapters present current problems, introduce advances in analytical methods and models, and demonstrate the applications of quantitative methods to ecological data. The book covers new tools for designing robust field studies; estimation of abundance and demographic rates; matrix population models and analyses of population dynamics; and current approaches for genetic and spatial analysis. Each chapter is illustrated by empirical examples based on real datasets, with a companion website that offers online exercises and examples of computer code in the R statistical software platform.
* Fills a niche for a book that emphasizes applied aspects of population analysis
* Covers many of the current methods being used to analyse population dynamics and structure
* Illustrates the application of specific analytical methods through worked examples based on real datasets
* Offers readers the opportunity to work through examples or adapt the routines to their own datasets using computer code in the R statistical platform
Population Ecology in Practice is an excellent book for upper-level undergraduate and graduate students taking courses in population ecology or ecological statistics, as well as established researchers needing a desktop reference for contemporary methods used to develop robust population assessments.
The book provides an overview of the key analytical approaches that are currently used in demographic, genetic, and spatial analyses in population ecology. The chapters present current problems, introduce advances in analytical methods and models, and demonstrate the applications of quantitative methods to ecological data. The book covers new tools for designing robust field studies; estimation of abundance and demographic rates; matrix population models and analyses of population dynamics; and current approaches for genetic and spatial analysis. Each chapter is illustrated by empirical examples based on real datasets, with a companion website that offers online exercises and examples of computer code in the R statistical software platform.
* Fills a niche for a book that emphasizes applied aspects of population analysis
* Covers many of the current methods being used to analyse population dynamics and structure
* Illustrates the application of specific analytical methods through worked examples based on real datasets
* Offers readers the opportunity to work through examples or adapt the routines to their own datasets using computer code in the R statistical platform
Population Ecology in Practice is an excellent book for upper-level undergraduate and graduate students taking courses in population ecology or ecological statistics, as well as established researchers needing a desktop reference for contemporary methods used to develop robust population assessments.
A synthesis of contemporary analytical and modeling approaches in population ecology
The book provides an overview of the key analytical approaches that are currently used in demographic, genetic, and spatial analyses in population ecology. The chapters present current problems, introduce advances in analytical methods and models, and demonstrate the applications of quantitative methods to ecological data. The book covers new tools for designing robust field studies; estimation of abundance and demographic rates; matrix population models and analyses of population dynamics; and current approaches for genetic and spatial analysis. Each chapter is illustrated by empirical examples based on real datasets, with a companion website that offers online exercises and examples of computer code in the R statistical software platform.
* Fills a niche for a book that emphasizes applied aspects of population analysis
* Covers many of the current methods being used to analyse population dynamics and structure
* Illustrates the application of specific analytical methods through worked examples based on real datasets
* Offers readers the opportunity to work through examples or adapt the routines to their own datasets using computer code in the R statistical platform
Population Ecology in Practice is an excellent book for upper-level undergraduate and graduate students taking courses in population ecology or ecological statistics, as well as established researchers needing a desktop reference for contemporary methods used to develop robust population assessments.
The book provides an overview of the key analytical approaches that are currently used in demographic, genetic, and spatial analyses in population ecology. The chapters present current problems, introduce advances in analytical methods and models, and demonstrate the applications of quantitative methods to ecological data. The book covers new tools for designing robust field studies; estimation of abundance and demographic rates; matrix population models and analyses of population dynamics; and current approaches for genetic and spatial analysis. Each chapter is illustrated by empirical examples based on real datasets, with a companion website that offers online exercises and examples of computer code in the R statistical software platform.
* Fills a niche for a book that emphasizes applied aspects of population analysis
* Covers many of the current methods being used to analyse population dynamics and structure
* Illustrates the application of specific analytical methods through worked examples based on real datasets
* Offers readers the opportunity to work through examples or adapt the routines to their own datasets using computer code in the R statistical platform
Population Ecology in Practice is an excellent book for upper-level undergraduate and graduate students taking courses in population ecology or ecological statistics, as well as established researchers needing a desktop reference for contemporary methods used to develop robust population assessments.
Über den Autor
DENNIS L. MURRAY, PHD, is Professor of Biology at Trent University and holds the position of Canada Research Chair in Integrative Wildlife Conservation, Bioinformatics, and Ecological Modeling.
BRETT K. SANDERCOCK, PHD, is a Senior Research Scientist in the Department of Terrestrial Ecology at the Norwegian Institute for Nature Research.
Inhaltsverzeichnis
Contributors xvii
Preface xxi
About the Companion Website xxiii
Part I Tools for Population Biology 1
1 How to Ask Meaningful Ecological Questions 3
Charles J. Krebs
1.1 What Problems Do Population Ecologists Try to Solve? 3
1.2 What Approaches Do Population Ecologists Use? 6
1.2.1 Generating and Testing Hypotheses in Population Ecology 10
1.3 Generality in Population Ecology 11
1.4 Final Thoughts 12
References 13
2 From Research Hypothesis to Model Selection: A Strategy for Robust Inference in Population Ecology 17
Dennis L. Murray, Guillaume Bastille-Rousseau, Lynne E. Beaty, Megan L. Hornseth, Jeffrey R. Row and Daniel H. Thornton
2.1 Introduction 17
2.1.1 Inductive Methods 18
2.1.2 Hypothetico-deductive Methods 19
2.1.3 Multimodel Inference 20
2.1.4 Bayesian Methods 22
2.2 What Constitutes a Good Research Hypothesis? 22
2.3 Multiple Hypotheses and Information Theoretics 24
2.3.1 How Many are Too Many Hypotheses? 25
2.4 From Research Hypothesis to Statistical Model 26
2.4.1 Functional Relationships Between Variables 26
2.4.2 Interactions Between Predictor Variables 26
2.4.3 Number and Structure of Predictor Variables 27
2.5 Exploratory Analysis and Helpful Remedies 28
2.5.1 Exploratory Analysis and Diagnostic Tests 28
2.5.2 Missing Data 28
2.5.3 Inter-relationships Between Predictors 30
2.5.4 Interpretability of Model Output 31
2.6 Model Ranking and Evaluation 32
2.6.1 Model Selection 32
2.6.2 Multimodel Inference 36
2.7 Model Validation 39
2.8 Software Tools 41
2.9 Online Exercises 41
2.10 Future Directions 41
References 42
Part II Population Demography 47
3 Estimating Abundance or Occupancy from Unmarked Populations 49
Brett T. McClintock and Len Thomas
3.1 Introduction 49
3.1.1 Why Collect Data from Unmarked Populations? 49
3.1.2 Relative Indices and Detection Probability 50
3.1.2.1 Population Abundance 50
3.1.2.2 Species Occurrence 51
3.1.3 Hierarchy of Sampling Methods for Unmarked Individuals 52
3.2 Estimating Abundance (or Density) from Unmarked Individuals 53
3.2.1 Distance Sampling 53
3.2.1.1 Classical Distance Sampling 54
3.2.1.2 Model-Based Distance Sampling 57
3.2.2 Replicated Counts of Unmarked Individuals 61
3.2.2.1 Spatially Replicated Counts 61
3.2.2.2 Removal Sampling 63
3.3 Estimating Species Occurrence under Imperfect Detection 64
3.3.1 Single-Season Occupancy Models 65
3.3.2 Multiple-Season Occupancy Models 66
3.3.3 Other Developments in Occupancy Estimation 68
3.3.3.1 Site Heterogeneity in Detection Probability 68
3.3.3.2 Occupancy and Abundance Relationships 68
3.3.3.3 Multistate and Multiscale Occupancy Models 68
3.3.3.4 Metapopulation Occupancy Models 69
3.3.3.5 False Positive Occupancy Models 70
3.4 Software Tools 70
3.5 Online Exercises 71
3.6 Future Directions 71
References 73
4 Analyzing Time Series Data: Single-Species Abundance Modeling 79
Steven Delean, Thomas A.A. Prowse, Joshua V. Ross and Jonathan Tuke
4.1 Introduction 79
4.1.1 Principal Approaches to Time Series Analysis in Ecology 80
4.1.2 Challenges to Time Series Analysis in Ecology 82
4.2 Time Series (ARMA) Modeling 83
4.2.1 Time Series Models 83
4.2.2 Autoregressive Moving Average Models 83
4.3 Regression Models with Correlated Errors 87
4.4 Phenomenological Models of Population Dynamics 88
4.4.1 Deterministic Models 89
4.4.1.1 Exponential Growth 89
4.4.1.2 Classic ODE Single-Species Population Models that Incorporate Density Dependence 90
4.4.2 Discrete-Time Population Growth Models with Stochasticity 92
4.5 State-space Modeling 93
4.5.1 Gompertz State-space Population Model 94
4.5.2 Nonlinear and Non-Gaussian State-space Population Models 96
4.6 Software Tools 96
4.7 Online Exercises 97
4.8 Future Directions 97
References 98
5 Estimating Abundance from Capture-Recapture Data 103
J. Andrew Royle and Sarah J. Converse
5.1 Introduction 103
5.2 Genesis of Capture-Recapture Data 104
5.3 The Basic Closed Population Models: M0, Mt, Mb104
5.4 Inference Strategies 105
5.4.1 Likelihood Inference 105
5.4.2 Bayesian Analysis 107
5.4.3 Other Inference Strategies 108
5.5 Models with Individual Heterogeneity in Detection 108
5.5.1 Model Mh 108
5.5.2 Individual Covariate Models 109
5.5.2.1 The Full Likelihood 109
5.5.2.2 Horvitz-Thompson Estimation 110
5.5.3 Distance Sampling 110
5.5.4 Spatial Capture-Recapture Models 110
5.5.4.1 The State-space 112
5.5.4.2 Inference in SCR Models 112
5.6 Stratified Populations or Multisession Models 112
5.6.1 Nonparametric Estimation 112
5.6.2 Hierarchical Capture-Recapture Models 113
5.7 Model Selection and Model Fit 113
5.7.1 Model Selection 113
5.7.2 Goodness-of-Fit 114
5.7.3 What to Do When Your Model Does Not Fit 115
5.8 Open Population Models 115
5.9 Software Tools 116
5.10 Online Exercises 117
5.11 Future Directions 118
References 119
6 Estimating Survival and Cause-specific Mortality from Continuous Time Observations 123
Dennis L. Murray and Guillaume Bastille-Rousseau
6.1 Introduction 123
6.1.1 Assumption of No Handling, Marking or Monitoring Effects 125
6.1.2 Cause of Death Assessment 125
6.1.3 Historical Origins of Survival Estimation 126
6.2 Survival and Hazard Functions in Theory 127
6.3 Developing Continuous Time Survival Datasets 130
6.3.1 Dataset Structure 131
6.3.2 Right-censoring 133
6.3.3 Delayed Entry and Other Time Considerations 133
6.3.4 Sampling Heterogeneity 134
6.3.5 Time-dependent Covariates 135
6.4 Survival and Hazard Functions in Practice 135
6.4.1 Mayfield and Heisey-Fuller Survival Estimation 135
6.4.2 Kaplan-Meier Estimator 136
6.4.3 Nelson-Aalen Estimator 138
6.5 Statistical Analysis of Survival 138
6.5.1 Simple Hypothesis Tests 138
6.5.2 Cox Proportional Hazards 139
6.5.3 Proportionality of Hazards 140
6.5.4 Extended CPH 142
6.5.5 Further Extensions 143
6.5.6 Parametric Models 143
6.6 Cause-specific Survival Analysis 144
6.6.1 The Case for Cause-specific Mortality Data 144
6.6.2 Cause-specific Hazards and Mortality Rates 145
6.6.3 Competing Risks Analysis 146
6.6.4 Additive Versus Compensatory Mortality 147
6.7 Software Tools 149
6.8 Online Exercises 149
6.9 Future Directions 149
References 151
7 Mark-Recapture Models for Estimation of Demographic Parameters 157
Brett K. Sandercock
7.1 Introduction 157
7.2 Live Encounter Data 158
7.3 Encounter Histories and Model Selection 159
7.4 Return Rates 163
7.5 Cormack-Jolly-Seber Models 164
7.6 The Challenge of Emigration 164
7.7 Extending the CJS Model 167
7.8 Time-since-marking and Transient Models 167
7.9 Temporal Symmetry Models 168
7.10 Jolly-Seber Model 169
7.11 Multilevel Models 169
7.12 Spatially Explicit Models 170
7.13 Robust Design Models 170
7.14 Mark-resight Models 171
7.15 Young Survival Model 172
7.16 Multistate Models 173
7.17 Multistate Models with Unobservable States 175
7.18 Multievent Models with Uncertain States 176
7.19 Joint Models 177
7.20 Integrated Population Models 178
7.21 Frequentist vs. Bayesian Methods 178
7.22 Software Tools 179
7.23 Online Exercises 180
7.24 Future Directions 180
References 180
Part III Population Models 191
8 Projecting Populations 193
Stéphane Legendre
8.1 Introduction 193
8.2 The Life Cycle Graph 194
8.2.1 Description 194
8.2.2 Construction 194
8.3 Matrix Models 198
8.3.1 The Projection Equation 198
8.3.2 Demographic Descriptors 200
8.3.3 Sensitivities 200
8.4 Accounting for the Environment 202
8.5 Density Dependence 203
8.5.1 Density-dependent Scalar Models 203
8.5.2 Density-dependent Matrix Models 203
8.5.3 Parameterizing Density Dependence 204
8.5.4 Density-dependent Sensitivities 204
8.6 Environmental Stochasticity 204
8.6.1 Models of the Environment 204
8.6.2 Stochastic Dynamics 205
8.6.3 Parameterizing Environmental Stochasticity 208
8.7 Spatial Structure 208
8.8 Demographic Stochasticity 209
8.8.1 Branching Processes 209
8.8.2 Two-sex Models 210
8.9 Demographic Heterogeneity 210
8.9.1 Integral Projection Models 211
8.10 Software Tools 212
8.11 Online Exercises 212
8.12 Future Directions 212
References 212
9 Combining Counts of Unmarked Individuals and Demographic Data Using Integrated Population Models 215
Michael Schaub
9.1 Introduction 215
9.2 Construction of Integrated Population Models 216
9.2.1 Development of a Population Model 216
9.2.2 Construction of the Likelihood for Different Datasets 218
9.2.3 The Joint Likelihood 220
9.2.4 Fitting an Integrated Population Model 221
9.3 Model Extensions 223
9.3.1 Environmental Stochasticity 223
9.3.2 Direct Density Dependence 224
9.3.3 Open Population Models and Other Extensions 226
9.3.4 Alternative Observation Models 226
9.4 Inference About Population Dynamics 227
9.4.1 Retrospective Population Analyses 227
9.4.2 Population Viability Analyses 227
9.5 Missing Data 229
9.6 Goodness-of-fit and Model Selection 230
9.7 Software Tools 230
9.8 Online Exercises 231
9.9 Future Directions 231
References 232
10 Individual and Agent-based Models in Population Ecology and Conservation Biology 237
Eloy Revilla
10.1 Individual and Agent-based Models 237
10.1.1 What an IBM is and What it is Not 238
10.1.2 When to Use an Individual-based Model 238
10.1.3 Criticisms on the Use of IBMs: Advantages or Disadvantages 239
10.2 Building the Core Model 239
10.2.1 Design Phase: The Question and the Conceptual Model 239
10.2.2 Implementation of the Core Model 240
10.2.3 Individuals and Their Traits 240
10.2.4 Functional Relationships 244
10.2.5 The Environment and Its Relevant Properties 244
10.2.6 Time and Space: Domains, Resolutions, Boundary Conditions, and Scheduling 244
10.2.7 Single Model Run, Data Input, Model Output 246
10.3 Protocols for Model Documentation 247
10.3.1 The Overview, Design Concepts, and Details Protocol 249
10.4 Model Analysis and Inference 249
10.4.1 Model Debugging and Checking the Consistency of Model Behavior 249
10.4.2 Model Structural Uncertainty and Sensitivity Analyses...
Preface xxi
About the Companion Website xxiii
Part I Tools for Population Biology 1
1 How to Ask Meaningful Ecological Questions 3
Charles J. Krebs
1.1 What Problems Do Population Ecologists Try to Solve? 3
1.2 What Approaches Do Population Ecologists Use? 6
1.2.1 Generating and Testing Hypotheses in Population Ecology 10
1.3 Generality in Population Ecology 11
1.4 Final Thoughts 12
References 13
2 From Research Hypothesis to Model Selection: A Strategy for Robust Inference in Population Ecology 17
Dennis L. Murray, Guillaume Bastille-Rousseau, Lynne E. Beaty, Megan L. Hornseth, Jeffrey R. Row and Daniel H. Thornton
2.1 Introduction 17
2.1.1 Inductive Methods 18
2.1.2 Hypothetico-deductive Methods 19
2.1.3 Multimodel Inference 20
2.1.4 Bayesian Methods 22
2.2 What Constitutes a Good Research Hypothesis? 22
2.3 Multiple Hypotheses and Information Theoretics 24
2.3.1 How Many are Too Many Hypotheses? 25
2.4 From Research Hypothesis to Statistical Model 26
2.4.1 Functional Relationships Between Variables 26
2.4.2 Interactions Between Predictor Variables 26
2.4.3 Number and Structure of Predictor Variables 27
2.5 Exploratory Analysis and Helpful Remedies 28
2.5.1 Exploratory Analysis and Diagnostic Tests 28
2.5.2 Missing Data 28
2.5.3 Inter-relationships Between Predictors 30
2.5.4 Interpretability of Model Output 31
2.6 Model Ranking and Evaluation 32
2.6.1 Model Selection 32
2.6.2 Multimodel Inference 36
2.7 Model Validation 39
2.8 Software Tools 41
2.9 Online Exercises 41
2.10 Future Directions 41
References 42
Part II Population Demography 47
3 Estimating Abundance or Occupancy from Unmarked Populations 49
Brett T. McClintock and Len Thomas
3.1 Introduction 49
3.1.1 Why Collect Data from Unmarked Populations? 49
3.1.2 Relative Indices and Detection Probability 50
3.1.2.1 Population Abundance 50
3.1.2.2 Species Occurrence 51
3.1.3 Hierarchy of Sampling Methods for Unmarked Individuals 52
3.2 Estimating Abundance (or Density) from Unmarked Individuals 53
3.2.1 Distance Sampling 53
3.2.1.1 Classical Distance Sampling 54
3.2.1.2 Model-Based Distance Sampling 57
3.2.2 Replicated Counts of Unmarked Individuals 61
3.2.2.1 Spatially Replicated Counts 61
3.2.2.2 Removal Sampling 63
3.3 Estimating Species Occurrence under Imperfect Detection 64
3.3.1 Single-Season Occupancy Models 65
3.3.2 Multiple-Season Occupancy Models 66
3.3.3 Other Developments in Occupancy Estimation 68
3.3.3.1 Site Heterogeneity in Detection Probability 68
3.3.3.2 Occupancy and Abundance Relationships 68
3.3.3.3 Multistate and Multiscale Occupancy Models 68
3.3.3.4 Metapopulation Occupancy Models 69
3.3.3.5 False Positive Occupancy Models 70
3.4 Software Tools 70
3.5 Online Exercises 71
3.6 Future Directions 71
References 73
4 Analyzing Time Series Data: Single-Species Abundance Modeling 79
Steven Delean, Thomas A.A. Prowse, Joshua V. Ross and Jonathan Tuke
4.1 Introduction 79
4.1.1 Principal Approaches to Time Series Analysis in Ecology 80
4.1.2 Challenges to Time Series Analysis in Ecology 82
4.2 Time Series (ARMA) Modeling 83
4.2.1 Time Series Models 83
4.2.2 Autoregressive Moving Average Models 83
4.3 Regression Models with Correlated Errors 87
4.4 Phenomenological Models of Population Dynamics 88
4.4.1 Deterministic Models 89
4.4.1.1 Exponential Growth 89
4.4.1.2 Classic ODE Single-Species Population Models that Incorporate Density Dependence 90
4.4.2 Discrete-Time Population Growth Models with Stochasticity 92
4.5 State-space Modeling 93
4.5.1 Gompertz State-space Population Model 94
4.5.2 Nonlinear and Non-Gaussian State-space Population Models 96
4.6 Software Tools 96
4.7 Online Exercises 97
4.8 Future Directions 97
References 98
5 Estimating Abundance from Capture-Recapture Data 103
J. Andrew Royle and Sarah J. Converse
5.1 Introduction 103
5.2 Genesis of Capture-Recapture Data 104
5.3 The Basic Closed Population Models: M0, Mt, Mb104
5.4 Inference Strategies 105
5.4.1 Likelihood Inference 105
5.4.2 Bayesian Analysis 107
5.4.3 Other Inference Strategies 108
5.5 Models with Individual Heterogeneity in Detection 108
5.5.1 Model Mh 108
5.5.2 Individual Covariate Models 109
5.5.2.1 The Full Likelihood 109
5.5.2.2 Horvitz-Thompson Estimation 110
5.5.3 Distance Sampling 110
5.5.4 Spatial Capture-Recapture Models 110
5.5.4.1 The State-space 112
5.5.4.2 Inference in SCR Models 112
5.6 Stratified Populations or Multisession Models 112
5.6.1 Nonparametric Estimation 112
5.6.2 Hierarchical Capture-Recapture Models 113
5.7 Model Selection and Model Fit 113
5.7.1 Model Selection 113
5.7.2 Goodness-of-Fit 114
5.7.3 What to Do When Your Model Does Not Fit 115
5.8 Open Population Models 115
5.9 Software Tools 116
5.10 Online Exercises 117
5.11 Future Directions 118
References 119
6 Estimating Survival and Cause-specific Mortality from Continuous Time Observations 123
Dennis L. Murray and Guillaume Bastille-Rousseau
6.1 Introduction 123
6.1.1 Assumption of No Handling, Marking or Monitoring Effects 125
6.1.2 Cause of Death Assessment 125
6.1.3 Historical Origins of Survival Estimation 126
6.2 Survival and Hazard Functions in Theory 127
6.3 Developing Continuous Time Survival Datasets 130
6.3.1 Dataset Structure 131
6.3.2 Right-censoring 133
6.3.3 Delayed Entry and Other Time Considerations 133
6.3.4 Sampling Heterogeneity 134
6.3.5 Time-dependent Covariates 135
6.4 Survival and Hazard Functions in Practice 135
6.4.1 Mayfield and Heisey-Fuller Survival Estimation 135
6.4.2 Kaplan-Meier Estimator 136
6.4.3 Nelson-Aalen Estimator 138
6.5 Statistical Analysis of Survival 138
6.5.1 Simple Hypothesis Tests 138
6.5.2 Cox Proportional Hazards 139
6.5.3 Proportionality of Hazards 140
6.5.4 Extended CPH 142
6.5.5 Further Extensions 143
6.5.6 Parametric Models 143
6.6 Cause-specific Survival Analysis 144
6.6.1 The Case for Cause-specific Mortality Data 144
6.6.2 Cause-specific Hazards and Mortality Rates 145
6.6.3 Competing Risks Analysis 146
6.6.4 Additive Versus Compensatory Mortality 147
6.7 Software Tools 149
6.8 Online Exercises 149
6.9 Future Directions 149
References 151
7 Mark-Recapture Models for Estimation of Demographic Parameters 157
Brett K. Sandercock
7.1 Introduction 157
7.2 Live Encounter Data 158
7.3 Encounter Histories and Model Selection 159
7.4 Return Rates 163
7.5 Cormack-Jolly-Seber Models 164
7.6 The Challenge of Emigration 164
7.7 Extending the CJS Model 167
7.8 Time-since-marking and Transient Models 167
7.9 Temporal Symmetry Models 168
7.10 Jolly-Seber Model 169
7.11 Multilevel Models 169
7.12 Spatially Explicit Models 170
7.13 Robust Design Models 170
7.14 Mark-resight Models 171
7.15 Young Survival Model 172
7.16 Multistate Models 173
7.17 Multistate Models with Unobservable States 175
7.18 Multievent Models with Uncertain States 176
7.19 Joint Models 177
7.20 Integrated Population Models 178
7.21 Frequentist vs. Bayesian Methods 178
7.22 Software Tools 179
7.23 Online Exercises 180
7.24 Future Directions 180
References 180
Part III Population Models 191
8 Projecting Populations 193
Stéphane Legendre
8.1 Introduction 193
8.2 The Life Cycle Graph 194
8.2.1 Description 194
8.2.2 Construction 194
8.3 Matrix Models 198
8.3.1 The Projection Equation 198
8.3.2 Demographic Descriptors 200
8.3.3 Sensitivities 200
8.4 Accounting for the Environment 202
8.5 Density Dependence 203
8.5.1 Density-dependent Scalar Models 203
8.5.2 Density-dependent Matrix Models 203
8.5.3 Parameterizing Density Dependence 204
8.5.4 Density-dependent Sensitivities 204
8.6 Environmental Stochasticity 204
8.6.1 Models of the Environment 204
8.6.2 Stochastic Dynamics 205
8.6.3 Parameterizing Environmental Stochasticity 208
8.7 Spatial Structure 208
8.8 Demographic Stochasticity 209
8.8.1 Branching Processes 209
8.8.2 Two-sex Models 210
8.9 Demographic Heterogeneity 210
8.9.1 Integral Projection Models 211
8.10 Software Tools 212
8.11 Online Exercises 212
8.12 Future Directions 212
References 212
9 Combining Counts of Unmarked Individuals and Demographic Data Using Integrated Population Models 215
Michael Schaub
9.1 Introduction 215
9.2 Construction of Integrated Population Models 216
9.2.1 Development of a Population Model 216
9.2.2 Construction of the Likelihood for Different Datasets 218
9.2.3 The Joint Likelihood 220
9.2.4 Fitting an Integrated Population Model 221
9.3 Model Extensions 223
9.3.1 Environmental Stochasticity 223
9.3.2 Direct Density Dependence 224
9.3.3 Open Population Models and Other Extensions 226
9.3.4 Alternative Observation Models 226
9.4 Inference About Population Dynamics 227
9.4.1 Retrospective Population Analyses 227
9.4.2 Population Viability Analyses 227
9.5 Missing Data 229
9.6 Goodness-of-fit and Model Selection 230
9.7 Software Tools 230
9.8 Online Exercises 231
9.9 Future Directions 231
References 232
10 Individual and Agent-based Models in Population Ecology and Conservation Biology 237
Eloy Revilla
10.1 Individual and Agent-based Models 237
10.1.1 What an IBM is and What it is Not 238
10.1.2 When to Use an Individual-based Model 238
10.1.3 Criticisms on the Use of IBMs: Advantages or Disadvantages 239
10.2 Building the Core Model 239
10.2.1 Design Phase: The Question and the Conceptual Model 239
10.2.2 Implementation of the Core Model 240
10.2.3 Individuals and Their Traits 240
10.2.4 Functional Relationships 244
10.2.5 The Environment and Its Relevant Properties 244
10.2.6 Time and Space: Domains, Resolutions, Boundary Conditions, and Scheduling 244
10.2.7 Single Model Run, Data Input, Model Output 246
10.3 Protocols for Model Documentation 247
10.3.1 The Overview, Design Concepts, and Details Protocol 249
10.4 Model Analysis and Inference 249
10.4.1 Model Debugging and Checking the Consistency of Model Behavior 249
10.4.2 Model Structural Uncertainty and Sensitivity Analyses...
Details
| Erscheinungsjahr: | 2020 |
|---|---|
| Genre: | Biologie |
| Rubrik: | Naturwissenschaften & Technik |
| Medium: | Taschenbuch |
| Seiten: | 448 |
| Inhalt: | 448 S. |
| ISBN-13: | 9780470674147 |
| ISBN-10: | 0470674148 |
| Sprache: | Englisch |
| Einband: | Kartoniert / Broschiert |
| Redaktion: |
Sandercock, Brett K.
Murray, Dennis L. |
| Herausgeber: | Dennis L Murray/Brett K Sandercock |
| Hersteller: | John Wiley and Sons Ltd |
| Maße: | 279 x 219 x 25 mm |
| Von/Mit: | Brett K. Sandercock (u. a.) |
| Erscheinungsdatum: | 13.02.2020 |
| Gewicht: | 1,229 kg |
Über den Autor
DENNIS L. MURRAY, PHD, is Professor of Biology at Trent University and holds the position of Canada Research Chair in Integrative Wildlife Conservation, Bioinformatics, and Ecological Modeling.
BRETT K. SANDERCOCK, PHD, is a Senior Research Scientist in the Department of Terrestrial Ecology at the Norwegian Institute for Nature Research.
Inhaltsverzeichnis
Contributors xvii
Preface xxi
About the Companion Website xxiii
Part I Tools for Population Biology 1
1 How to Ask Meaningful Ecological Questions 3
Charles J. Krebs
1.1 What Problems Do Population Ecologists Try to Solve? 3
1.2 What Approaches Do Population Ecologists Use? 6
1.2.1 Generating and Testing Hypotheses in Population Ecology 10
1.3 Generality in Population Ecology 11
1.4 Final Thoughts 12
References 13
2 From Research Hypothesis to Model Selection: A Strategy for Robust Inference in Population Ecology 17
Dennis L. Murray, Guillaume Bastille-Rousseau, Lynne E. Beaty, Megan L. Hornseth, Jeffrey R. Row and Daniel H. Thornton
2.1 Introduction 17
2.1.1 Inductive Methods 18
2.1.2 Hypothetico-deductive Methods 19
2.1.3 Multimodel Inference 20
2.1.4 Bayesian Methods 22
2.2 What Constitutes a Good Research Hypothesis? 22
2.3 Multiple Hypotheses and Information Theoretics 24
2.3.1 How Many are Too Many Hypotheses? 25
2.4 From Research Hypothesis to Statistical Model 26
2.4.1 Functional Relationships Between Variables 26
2.4.2 Interactions Between Predictor Variables 26
2.4.3 Number and Structure of Predictor Variables 27
2.5 Exploratory Analysis and Helpful Remedies 28
2.5.1 Exploratory Analysis and Diagnostic Tests 28
2.5.2 Missing Data 28
2.5.3 Inter-relationships Between Predictors 30
2.5.4 Interpretability of Model Output 31
2.6 Model Ranking and Evaluation 32
2.6.1 Model Selection 32
2.6.2 Multimodel Inference 36
2.7 Model Validation 39
2.8 Software Tools 41
2.9 Online Exercises 41
2.10 Future Directions 41
References 42
Part II Population Demography 47
3 Estimating Abundance or Occupancy from Unmarked Populations 49
Brett T. McClintock and Len Thomas
3.1 Introduction 49
3.1.1 Why Collect Data from Unmarked Populations? 49
3.1.2 Relative Indices and Detection Probability 50
3.1.2.1 Population Abundance 50
3.1.2.2 Species Occurrence 51
3.1.3 Hierarchy of Sampling Methods for Unmarked Individuals 52
3.2 Estimating Abundance (or Density) from Unmarked Individuals 53
3.2.1 Distance Sampling 53
3.2.1.1 Classical Distance Sampling 54
3.2.1.2 Model-Based Distance Sampling 57
3.2.2 Replicated Counts of Unmarked Individuals 61
3.2.2.1 Spatially Replicated Counts 61
3.2.2.2 Removal Sampling 63
3.3 Estimating Species Occurrence under Imperfect Detection 64
3.3.1 Single-Season Occupancy Models 65
3.3.2 Multiple-Season Occupancy Models 66
3.3.3 Other Developments in Occupancy Estimation 68
3.3.3.1 Site Heterogeneity in Detection Probability 68
3.3.3.2 Occupancy and Abundance Relationships 68
3.3.3.3 Multistate and Multiscale Occupancy Models 68
3.3.3.4 Metapopulation Occupancy Models 69
3.3.3.5 False Positive Occupancy Models 70
3.4 Software Tools 70
3.5 Online Exercises 71
3.6 Future Directions 71
References 73
4 Analyzing Time Series Data: Single-Species Abundance Modeling 79
Steven Delean, Thomas A.A. Prowse, Joshua V. Ross and Jonathan Tuke
4.1 Introduction 79
4.1.1 Principal Approaches to Time Series Analysis in Ecology 80
4.1.2 Challenges to Time Series Analysis in Ecology 82
4.2 Time Series (ARMA) Modeling 83
4.2.1 Time Series Models 83
4.2.2 Autoregressive Moving Average Models 83
4.3 Regression Models with Correlated Errors 87
4.4 Phenomenological Models of Population Dynamics 88
4.4.1 Deterministic Models 89
4.4.1.1 Exponential Growth 89
4.4.1.2 Classic ODE Single-Species Population Models that Incorporate Density Dependence 90
4.4.2 Discrete-Time Population Growth Models with Stochasticity 92
4.5 State-space Modeling 93
4.5.1 Gompertz State-space Population Model 94
4.5.2 Nonlinear and Non-Gaussian State-space Population Models 96
4.6 Software Tools 96
4.7 Online Exercises 97
4.8 Future Directions 97
References 98
5 Estimating Abundance from Capture-Recapture Data 103
J. Andrew Royle and Sarah J. Converse
5.1 Introduction 103
5.2 Genesis of Capture-Recapture Data 104
5.3 The Basic Closed Population Models: M0, Mt, Mb104
5.4 Inference Strategies 105
5.4.1 Likelihood Inference 105
5.4.2 Bayesian Analysis 107
5.4.3 Other Inference Strategies 108
5.5 Models with Individual Heterogeneity in Detection 108
5.5.1 Model Mh 108
5.5.2 Individual Covariate Models 109
5.5.2.1 The Full Likelihood 109
5.5.2.2 Horvitz-Thompson Estimation 110
5.5.3 Distance Sampling 110
5.5.4 Spatial Capture-Recapture Models 110
5.5.4.1 The State-space 112
5.5.4.2 Inference in SCR Models 112
5.6 Stratified Populations or Multisession Models 112
5.6.1 Nonparametric Estimation 112
5.6.2 Hierarchical Capture-Recapture Models 113
5.7 Model Selection and Model Fit 113
5.7.1 Model Selection 113
5.7.2 Goodness-of-Fit 114
5.7.3 What to Do When Your Model Does Not Fit 115
5.8 Open Population Models 115
5.9 Software Tools 116
5.10 Online Exercises 117
5.11 Future Directions 118
References 119
6 Estimating Survival and Cause-specific Mortality from Continuous Time Observations 123
Dennis L. Murray and Guillaume Bastille-Rousseau
6.1 Introduction 123
6.1.1 Assumption of No Handling, Marking or Monitoring Effects 125
6.1.2 Cause of Death Assessment 125
6.1.3 Historical Origins of Survival Estimation 126
6.2 Survival and Hazard Functions in Theory 127
6.3 Developing Continuous Time Survival Datasets 130
6.3.1 Dataset Structure 131
6.3.2 Right-censoring 133
6.3.3 Delayed Entry and Other Time Considerations 133
6.3.4 Sampling Heterogeneity 134
6.3.5 Time-dependent Covariates 135
6.4 Survival and Hazard Functions in Practice 135
6.4.1 Mayfield and Heisey-Fuller Survival Estimation 135
6.4.2 Kaplan-Meier Estimator 136
6.4.3 Nelson-Aalen Estimator 138
6.5 Statistical Analysis of Survival 138
6.5.1 Simple Hypothesis Tests 138
6.5.2 Cox Proportional Hazards 139
6.5.3 Proportionality of Hazards 140
6.5.4 Extended CPH 142
6.5.5 Further Extensions 143
6.5.6 Parametric Models 143
6.6 Cause-specific Survival Analysis 144
6.6.1 The Case for Cause-specific Mortality Data 144
6.6.2 Cause-specific Hazards and Mortality Rates 145
6.6.3 Competing Risks Analysis 146
6.6.4 Additive Versus Compensatory Mortality 147
6.7 Software Tools 149
6.8 Online Exercises 149
6.9 Future Directions 149
References 151
7 Mark-Recapture Models for Estimation of Demographic Parameters 157
Brett K. Sandercock
7.1 Introduction 157
7.2 Live Encounter Data 158
7.3 Encounter Histories and Model Selection 159
7.4 Return Rates 163
7.5 Cormack-Jolly-Seber Models 164
7.6 The Challenge of Emigration 164
7.7 Extending the CJS Model 167
7.8 Time-since-marking and Transient Models 167
7.9 Temporal Symmetry Models 168
7.10 Jolly-Seber Model 169
7.11 Multilevel Models 169
7.12 Spatially Explicit Models 170
7.13 Robust Design Models 170
7.14 Mark-resight Models 171
7.15 Young Survival Model 172
7.16 Multistate Models 173
7.17 Multistate Models with Unobservable States 175
7.18 Multievent Models with Uncertain States 176
7.19 Joint Models 177
7.20 Integrated Population Models 178
7.21 Frequentist vs. Bayesian Methods 178
7.22 Software Tools 179
7.23 Online Exercises 180
7.24 Future Directions 180
References 180
Part III Population Models 191
8 Projecting Populations 193
Stéphane Legendre
8.1 Introduction 193
8.2 The Life Cycle Graph 194
8.2.1 Description 194
8.2.2 Construction 194
8.3 Matrix Models 198
8.3.1 The Projection Equation 198
8.3.2 Demographic Descriptors 200
8.3.3 Sensitivities 200
8.4 Accounting for the Environment 202
8.5 Density Dependence 203
8.5.1 Density-dependent Scalar Models 203
8.5.2 Density-dependent Matrix Models 203
8.5.3 Parameterizing Density Dependence 204
8.5.4 Density-dependent Sensitivities 204
8.6 Environmental Stochasticity 204
8.6.1 Models of the Environment 204
8.6.2 Stochastic Dynamics 205
8.6.3 Parameterizing Environmental Stochasticity 208
8.7 Spatial Structure 208
8.8 Demographic Stochasticity 209
8.8.1 Branching Processes 209
8.8.2 Two-sex Models 210
8.9 Demographic Heterogeneity 210
8.9.1 Integral Projection Models 211
8.10 Software Tools 212
8.11 Online Exercises 212
8.12 Future Directions 212
References 212
9 Combining Counts of Unmarked Individuals and Demographic Data Using Integrated Population Models 215
Michael Schaub
9.1 Introduction 215
9.2 Construction of Integrated Population Models 216
9.2.1 Development of a Population Model 216
9.2.2 Construction of the Likelihood for Different Datasets 218
9.2.3 The Joint Likelihood 220
9.2.4 Fitting an Integrated Population Model 221
9.3 Model Extensions 223
9.3.1 Environmental Stochasticity 223
9.3.2 Direct Density Dependence 224
9.3.3 Open Population Models and Other Extensions 226
9.3.4 Alternative Observation Models 226
9.4 Inference About Population Dynamics 227
9.4.1 Retrospective Population Analyses 227
9.4.2 Population Viability Analyses 227
9.5 Missing Data 229
9.6 Goodness-of-fit and Model Selection 230
9.7 Software Tools 230
9.8 Online Exercises 231
9.9 Future Directions 231
References 232
10 Individual and Agent-based Models in Population Ecology and Conservation Biology 237
Eloy Revilla
10.1 Individual and Agent-based Models 237
10.1.1 What an IBM is and What it is Not 238
10.1.2 When to Use an Individual-based Model 238
10.1.3 Criticisms on the Use of IBMs: Advantages or Disadvantages 239
10.2 Building the Core Model 239
10.2.1 Design Phase: The Question and the Conceptual Model 239
10.2.2 Implementation of the Core Model 240
10.2.3 Individuals and Their Traits 240
10.2.4 Functional Relationships 244
10.2.5 The Environment and Its Relevant Properties 244
10.2.6 Time and Space: Domains, Resolutions, Boundary Conditions, and Scheduling 244
10.2.7 Single Model Run, Data Input, Model Output 246
10.3 Protocols for Model Documentation 247
10.3.1 The Overview, Design Concepts, and Details Protocol 249
10.4 Model Analysis and Inference 249
10.4.1 Model Debugging and Checking the Consistency of Model Behavior 249
10.4.2 Model Structural Uncertainty and Sensitivity Analyses...
Preface xxi
About the Companion Website xxiii
Part I Tools for Population Biology 1
1 How to Ask Meaningful Ecological Questions 3
Charles J. Krebs
1.1 What Problems Do Population Ecologists Try to Solve? 3
1.2 What Approaches Do Population Ecologists Use? 6
1.2.1 Generating and Testing Hypotheses in Population Ecology 10
1.3 Generality in Population Ecology 11
1.4 Final Thoughts 12
References 13
2 From Research Hypothesis to Model Selection: A Strategy for Robust Inference in Population Ecology 17
Dennis L. Murray, Guillaume Bastille-Rousseau, Lynne E. Beaty, Megan L. Hornseth, Jeffrey R. Row and Daniel H. Thornton
2.1 Introduction 17
2.1.1 Inductive Methods 18
2.1.2 Hypothetico-deductive Methods 19
2.1.3 Multimodel Inference 20
2.1.4 Bayesian Methods 22
2.2 What Constitutes a Good Research Hypothesis? 22
2.3 Multiple Hypotheses and Information Theoretics 24
2.3.1 How Many are Too Many Hypotheses? 25
2.4 From Research Hypothesis to Statistical Model 26
2.4.1 Functional Relationships Between Variables 26
2.4.2 Interactions Between Predictor Variables 26
2.4.3 Number and Structure of Predictor Variables 27
2.5 Exploratory Analysis and Helpful Remedies 28
2.5.1 Exploratory Analysis and Diagnostic Tests 28
2.5.2 Missing Data 28
2.5.3 Inter-relationships Between Predictors 30
2.5.4 Interpretability of Model Output 31
2.6 Model Ranking and Evaluation 32
2.6.1 Model Selection 32
2.6.2 Multimodel Inference 36
2.7 Model Validation 39
2.8 Software Tools 41
2.9 Online Exercises 41
2.10 Future Directions 41
References 42
Part II Population Demography 47
3 Estimating Abundance or Occupancy from Unmarked Populations 49
Brett T. McClintock and Len Thomas
3.1 Introduction 49
3.1.1 Why Collect Data from Unmarked Populations? 49
3.1.2 Relative Indices and Detection Probability 50
3.1.2.1 Population Abundance 50
3.1.2.2 Species Occurrence 51
3.1.3 Hierarchy of Sampling Methods for Unmarked Individuals 52
3.2 Estimating Abundance (or Density) from Unmarked Individuals 53
3.2.1 Distance Sampling 53
3.2.1.1 Classical Distance Sampling 54
3.2.1.2 Model-Based Distance Sampling 57
3.2.2 Replicated Counts of Unmarked Individuals 61
3.2.2.1 Spatially Replicated Counts 61
3.2.2.2 Removal Sampling 63
3.3 Estimating Species Occurrence under Imperfect Detection 64
3.3.1 Single-Season Occupancy Models 65
3.3.2 Multiple-Season Occupancy Models 66
3.3.3 Other Developments in Occupancy Estimation 68
3.3.3.1 Site Heterogeneity in Detection Probability 68
3.3.3.2 Occupancy and Abundance Relationships 68
3.3.3.3 Multistate and Multiscale Occupancy Models 68
3.3.3.4 Metapopulation Occupancy Models 69
3.3.3.5 False Positive Occupancy Models 70
3.4 Software Tools 70
3.5 Online Exercises 71
3.6 Future Directions 71
References 73
4 Analyzing Time Series Data: Single-Species Abundance Modeling 79
Steven Delean, Thomas A.A. Prowse, Joshua V. Ross and Jonathan Tuke
4.1 Introduction 79
4.1.1 Principal Approaches to Time Series Analysis in Ecology 80
4.1.2 Challenges to Time Series Analysis in Ecology 82
4.2 Time Series (ARMA) Modeling 83
4.2.1 Time Series Models 83
4.2.2 Autoregressive Moving Average Models 83
4.3 Regression Models with Correlated Errors 87
4.4 Phenomenological Models of Population Dynamics 88
4.4.1 Deterministic Models 89
4.4.1.1 Exponential Growth 89
4.4.1.2 Classic ODE Single-Species Population Models that Incorporate Density Dependence 90
4.4.2 Discrete-Time Population Growth Models with Stochasticity 92
4.5 State-space Modeling 93
4.5.1 Gompertz State-space Population Model 94
4.5.2 Nonlinear and Non-Gaussian State-space Population Models 96
4.6 Software Tools 96
4.7 Online Exercises 97
4.8 Future Directions 97
References 98
5 Estimating Abundance from Capture-Recapture Data 103
J. Andrew Royle and Sarah J. Converse
5.1 Introduction 103
5.2 Genesis of Capture-Recapture Data 104
5.3 The Basic Closed Population Models: M0, Mt, Mb104
5.4 Inference Strategies 105
5.4.1 Likelihood Inference 105
5.4.2 Bayesian Analysis 107
5.4.3 Other Inference Strategies 108
5.5 Models with Individual Heterogeneity in Detection 108
5.5.1 Model Mh 108
5.5.2 Individual Covariate Models 109
5.5.2.1 The Full Likelihood 109
5.5.2.2 Horvitz-Thompson Estimation 110
5.5.3 Distance Sampling 110
5.5.4 Spatial Capture-Recapture Models 110
5.5.4.1 The State-space 112
5.5.4.2 Inference in SCR Models 112
5.6 Stratified Populations or Multisession Models 112
5.6.1 Nonparametric Estimation 112
5.6.2 Hierarchical Capture-Recapture Models 113
5.7 Model Selection and Model Fit 113
5.7.1 Model Selection 113
5.7.2 Goodness-of-Fit 114
5.7.3 What to Do When Your Model Does Not Fit 115
5.8 Open Population Models 115
5.9 Software Tools 116
5.10 Online Exercises 117
5.11 Future Directions 118
References 119
6 Estimating Survival and Cause-specific Mortality from Continuous Time Observations 123
Dennis L. Murray and Guillaume Bastille-Rousseau
6.1 Introduction 123
6.1.1 Assumption of No Handling, Marking or Monitoring Effects 125
6.1.2 Cause of Death Assessment 125
6.1.3 Historical Origins of Survival Estimation 126
6.2 Survival and Hazard Functions in Theory 127
6.3 Developing Continuous Time Survival Datasets 130
6.3.1 Dataset Structure 131
6.3.2 Right-censoring 133
6.3.3 Delayed Entry and Other Time Considerations 133
6.3.4 Sampling Heterogeneity 134
6.3.5 Time-dependent Covariates 135
6.4 Survival and Hazard Functions in Practice 135
6.4.1 Mayfield and Heisey-Fuller Survival Estimation 135
6.4.2 Kaplan-Meier Estimator 136
6.4.3 Nelson-Aalen Estimator 138
6.5 Statistical Analysis of Survival 138
6.5.1 Simple Hypothesis Tests 138
6.5.2 Cox Proportional Hazards 139
6.5.3 Proportionality of Hazards 140
6.5.4 Extended CPH 142
6.5.5 Further Extensions 143
6.5.6 Parametric Models 143
6.6 Cause-specific Survival Analysis 144
6.6.1 The Case for Cause-specific Mortality Data 144
6.6.2 Cause-specific Hazards and Mortality Rates 145
6.6.3 Competing Risks Analysis 146
6.6.4 Additive Versus Compensatory Mortality 147
6.7 Software Tools 149
6.8 Online Exercises 149
6.9 Future Directions 149
References 151
7 Mark-Recapture Models for Estimation of Demographic Parameters 157
Brett K. Sandercock
7.1 Introduction 157
7.2 Live Encounter Data 158
7.3 Encounter Histories and Model Selection 159
7.4 Return Rates 163
7.5 Cormack-Jolly-Seber Models 164
7.6 The Challenge of Emigration 164
7.7 Extending the CJS Model 167
7.8 Time-since-marking and Transient Models 167
7.9 Temporal Symmetry Models 168
7.10 Jolly-Seber Model 169
7.11 Multilevel Models 169
7.12 Spatially Explicit Models 170
7.13 Robust Design Models 170
7.14 Mark-resight Models 171
7.15 Young Survival Model 172
7.16 Multistate Models 173
7.17 Multistate Models with Unobservable States 175
7.18 Multievent Models with Uncertain States 176
7.19 Joint Models 177
7.20 Integrated Population Models 178
7.21 Frequentist vs. Bayesian Methods 178
7.22 Software Tools 179
7.23 Online Exercises 180
7.24 Future Directions 180
References 180
Part III Population Models 191
8 Projecting Populations 193
Stéphane Legendre
8.1 Introduction 193
8.2 The Life Cycle Graph 194
8.2.1 Description 194
8.2.2 Construction 194
8.3 Matrix Models 198
8.3.1 The Projection Equation 198
8.3.2 Demographic Descriptors 200
8.3.3 Sensitivities 200
8.4 Accounting for the Environment 202
8.5 Density Dependence 203
8.5.1 Density-dependent Scalar Models 203
8.5.2 Density-dependent Matrix Models 203
8.5.3 Parameterizing Density Dependence 204
8.5.4 Density-dependent Sensitivities 204
8.6 Environmental Stochasticity 204
8.6.1 Models of the Environment 204
8.6.2 Stochastic Dynamics 205
8.6.3 Parameterizing Environmental Stochasticity 208
8.7 Spatial Structure 208
8.8 Demographic Stochasticity 209
8.8.1 Branching Processes 209
8.8.2 Two-sex Models 210
8.9 Demographic Heterogeneity 210
8.9.1 Integral Projection Models 211
8.10 Software Tools 212
8.11 Online Exercises 212
8.12 Future Directions 212
References 212
9 Combining Counts of Unmarked Individuals and Demographic Data Using Integrated Population Models 215
Michael Schaub
9.1 Introduction 215
9.2 Construction of Integrated Population Models 216
9.2.1 Development of a Population Model 216
9.2.2 Construction of the Likelihood for Different Datasets 218
9.2.3 The Joint Likelihood 220
9.2.4 Fitting an Integrated Population Model 221
9.3 Model Extensions 223
9.3.1 Environmental Stochasticity 223
9.3.2 Direct Density Dependence 224
9.3.3 Open Population Models and Other Extensions 226
9.3.4 Alternative Observation Models 226
9.4 Inference About Population Dynamics 227
9.4.1 Retrospective Population Analyses 227
9.4.2 Population Viability Analyses 227
9.5 Missing Data 229
9.6 Goodness-of-fit and Model Selection 230
9.7 Software Tools 230
9.8 Online Exercises 231
9.9 Future Directions 231
References 232
10 Individual and Agent-based Models in Population Ecology and Conservation Biology 237
Eloy Revilla
10.1 Individual and Agent-based Models 237
10.1.1 What an IBM is and What it is Not 238
10.1.2 When to Use an Individual-based Model 238
10.1.3 Criticisms on the Use of IBMs: Advantages or Disadvantages 239
10.2 Building the Core Model 239
10.2.1 Design Phase: The Question and the Conceptual Model 239
10.2.2 Implementation of the Core Model 240
10.2.3 Individuals and Their Traits 240
10.2.4 Functional Relationships 244
10.2.5 The Environment and Its Relevant Properties 244
10.2.6 Time and Space: Domains, Resolutions, Boundary Conditions, and Scheduling 244
10.2.7 Single Model Run, Data Input, Model Output 246
10.3 Protocols for Model Documentation 247
10.3.1 The Overview, Design Concepts, and Details Protocol 249
10.4 Model Analysis and Inference 249
10.4.1 Model Debugging and Checking the Consistency of Model Behavior 249
10.4.2 Model Structural Uncertainty and Sensitivity Analyses...
Details
| Erscheinungsjahr: | 2020 |
|---|---|
| Genre: | Biologie |
| Rubrik: | Naturwissenschaften & Technik |
| Medium: | Taschenbuch |
| Seiten: | 448 |
| Inhalt: | 448 S. |
| ISBN-13: | 9780470674147 |
| ISBN-10: | 0470674148 |
| Sprache: | Englisch |
| Einband: | Kartoniert / Broschiert |
| Redaktion: |
Sandercock, Brett K.
Murray, Dennis L. |
| Herausgeber: | Dennis L Murray/Brett K Sandercock |
| Hersteller: | John Wiley and Sons Ltd |
| Maße: | 279 x 219 x 25 mm |
| Von/Mit: | Brett K. Sandercock (u. a.) |
| Erscheinungsdatum: | 13.02.2020 |
| Gewicht: | 1,229 kg |
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