Preface |
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xi | |
Acknowledgments |
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xiii | |
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1 | (280) |
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1 Introduction to Biological Modeling |
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3 | (20) |
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1.1 The nature and purposes of biological modeling |
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3 | (2) |
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5 | (6) |
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1.3 Types of mathematical models |
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11 | (3) |
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1.4 Assumptions, simplifications, and compromises |
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14 | (3) |
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1.5 Scale, and choosing units |
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17 | (6) |
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2 Difference Equations (Discrete Dynamical Systems) |
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23 | (76) |
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2.1 Introduction to discrete dynamical systems |
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23 | (10) |
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2.1.1 Linear difference equations |
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24 | (2) |
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2.1.2 Solution of linear difference equations |
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26 | (2) |
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2.1.3 Nonlinear difference equations |
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28 | (5) |
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33 | (4) |
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2.3 Qualitative analysis and population genetics |
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37 | (13) |
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2.3.1 Linearization and local stability |
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37 | (5) |
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2.3.2 A problem in population genetics |
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42 | (8) |
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2.4 Intraspecies competition |
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50 | (8) |
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2.4.1 Two metered fish models |
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54 | (2) |
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2.4.2 Between contest and scramble |
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56 | (2) |
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58 | (11) |
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2.5.1 Fishery harvesting and graphical equilibrium analysis |
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60 | (9) |
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2.6 Period doubling and chaos |
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69 | (13) |
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75 | (3) |
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2.6.2 Dynamical diseases and physiological control systems |
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78 | (4) |
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2.7 Structured populations |
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82 | (11) |
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86 | (4) |
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2.7.2 Two-stage populations |
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90 | (3) |
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2.8 Predator-prey systems |
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93 | (6) |
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2.8.1 A plant-herbivore model |
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93 | (1) |
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2.8.2 A host-parasitoid model |
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94 | (3) |
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97 | (2) |
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3 First-Order Differential Equations (Continuous Dynamical Systems) |
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99 | (86) |
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3.1 Continuous-time models and exponential growth |
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99 | (9) |
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100 | (5) |
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105 | (3) |
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3.2 Logistic population models |
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108 | (15) |
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3.2.1 All creatures great and small? |
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110 | (4) |
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3.2.2 Competition among plants |
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114 | (3) |
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3.2.3 The spread of infectious diseases |
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117 | (6) |
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123 | (7) |
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123 | (3) |
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126 | (4) |
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3.4 Equations and models with variables separable |
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130 | (20) |
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3.4.1 A linear model for the cardiac pacemaker |
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131 | (4) |
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135 | (4) |
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3.4.3 Solution of logistic equations |
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139 | (2) |
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3.4.4 Discrete-time metered population models |
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141 | (3) |
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144 | (6) |
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3.5 Mixing processes and linear models |
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150 | (15) |
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152 | (3) |
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155 | (3) |
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3.5.3 Newton's law of cooling |
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158 | (2) |
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160 | (5) |
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3.6 First-order models with time dependence |
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165 | (20) |
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165 | (2) |
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3.6.2 Integrating factors |
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167 | (2) |
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3.6.3 Substitution and integration |
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169 | (2) |
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3.6.4 Mixing processes with variable coefficients |
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171 | (3) |
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3.6.5 Bernouilli equation |
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174 | (8) |
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182 | (3) |
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4 Nonlinear Differential Equations |
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185 | (96) |
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4.1 Qualitative analysis tools |
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185 | (18) |
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4.1.1 Possible end behaviors |
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187 | (4) |
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191 | (5) |
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196 | (3) |
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4.1.4 Foraging ants and phase transitions |
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199 | (4) |
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203 | (25) |
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4.2.1 Constant-yield harvesting |
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203 | (11) |
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4.2.2 Constant-effort harvesting |
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214 | (8) |
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4.2.3 Migration and dispersal as harvesting |
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222 | (2) |
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224 | (4) |
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228 | (14) |
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4.3.1 A simple chemical reaction |
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228 | (3) |
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4.3.2 The spread of infectious diseases, revisited |
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231 | (6) |
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4.3.3 Contact rate saturation and the "Pay It Forward" model |
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237 | (5) |
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4.4 Parameter changes, thresholds, and bifurcations |
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242 | (16) |
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249 | (2) |
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251 | (7) |
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4.5 Numerical analysis of differential equations |
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258 | (23) |
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4.5.1 Approximation error |
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259 | (1) |
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260 | (4) |
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4.5.3 Other numerical methods |
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264 | (6) |
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270 | (7) |
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277 | (4) |
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281 | (132) |
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5 Systems of Differential Equations |
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283 | (38) |
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5.1 Graphical analysis: The phase plane |
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283 | (8) |
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5.2 Linearization of a system at an equilibrium |
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291 | (6) |
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5.3 Linear systems with constant coefficients |
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297 | (14) |
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5.3.1 A liver chemistry example |
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305 | (6) |
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5.4 Qualitative analysis of systems |
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311 | (10) |
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319 | (2) |
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6 Topics in Modeling Systems of Populations |
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321 | (38) |
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6.1 Epidemiology: Compartmental models |
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321 | (10) |
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321 | (6) |
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6.1.2 A model for endemic situations |
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327 | (4) |
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6.2 Population biology: Interacting species |
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331 | (20) |
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6.2.1 Species in competition |
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331 | (6) |
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6.2.2 Predator-prey systems |
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337 | (8) |
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345 | (6) |
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6.3 Numerical approximation to solutions of systems |
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351 | (8) |
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6.3.1 Example: A two-sex model |
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352 | (7) |
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7 Systems with Sustained Oscillations and Singularities |
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359 | (54) |
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7.1 Oscillations in neural activity |
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359 | (7) |
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7.1.1 The Fitzhugh-Nagumo equations |
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360 | (3) |
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7.1.2 A model for cat neurons |
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363 | (3) |
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7.2 Singular perturbations and enzyme kinetics |
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366 | (13) |
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372 | (2) |
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7.2.2 An example from enzyme kinetics |
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374 | (5) |
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7.3 HIV: An example from immunology |
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379 | (13) |
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381 | (6) |
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7.3.2 Including infected cells |
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387 | (5) |
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7.4 Slow selection in population genetics |
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392 | (10) |
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7.4.1 Equally fit genotypes |
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393 | (3) |
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7.4.2 Slow genetic selection |
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396 | (6) |
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7.5 Second-order differential equations: Acceleration |
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402 | (11) |
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7.5.1 The harmonic oscillator |
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402 | (3) |
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7.5.2 The van der Pol oscillator |
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405 | (3) |
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7.5.3 A model of oxygen diffusion in muscle fibers |
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408 | (5) |
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413 | (20) |
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A An Introduction to the Use of Maple™ |
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415 | (10) |
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A.1 Plotting graphs of functions |
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416 | (1) |
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A.2 Graphical solution of first-order differential equations |
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417 | (2) |
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A.3 Graphical solution of systems of differential equations |
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419 | (1) |
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A.4 The cobwebbing method for graphical solution of first-order difference equations |
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420 | (2) |
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A.5 Solution of difference equations and systems of difference equations |
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422 | (2) |
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A.6 A bifurcation program |
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424 | (1) |
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B Taylor's Theorem and Linearization |
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425 | (2) |
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C Location of Roots of Polynomial Equations |
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427 | (2) |
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D Stability of Equilibrium of Difference Equations |
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429 | (4) |
Answers to Selected Exercises |
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433 | (26) |
Bibliography |
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459 | (8) |
Index |
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467 | |