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Download PDF Population Systems A General Introduction by Alan A. Berryman And Pavel Kindlmann


Populations are made up of individual organisms, which interact and communicate with each other as they pursue their normal lives. For example, individuals mate, compete for scarce resources, and cooperate to capture prey or escape being eaten. As a result of these interactions individuals reproduce, move and die and these processes cause the population as a whole to behave in certain ways - populations grow, decline, or remain steady.

Any system you wish to consider, a television set or an automobile, is basically composed of a set of interacting parts that together produce patterns of behavior, which are characteristic of the system. This behavior is determined by the rules of interaction, and the overall structure of the interaction network. Populations, therefore, can be thought of as particular kinds of systems with their own rules and structure, which – nevertheless - obey certain general system laws. In the first chapter of this book we will take a brief excursion into the theory of dynamic systems in order to understand the properties and behavior of systems in general. Then these concepts will be applied to the analysis of single-species populations. In Chapter 2 a very simple model is developed from observations of the behavior of natural populations, which will help us to understand the fundamental rules of population growth. Then in Chapter 3 a more detailed model of the population system is created, along with a methodology for analyzing the behavior of dynamic population systems inhabiting variable environments.


  1. A Brief Look at Systems in General
  2. What is a System?
  3. The State of a System
  4. Dynamical Systems
  5. System Diagrams
  6. Feedback Control
  7. The Stability of Systems
  8. Anticipatory Feedforward
  9. Systems Analysis in Biology
  10. Population Dynamics and an Elementary Model
  11. What is a Population?
  12. Dynamics of Populations
  13. An Elementary Population Model
  14. Analysis of the Model
  15. Environmental and Genetic Effects
  16. Population Regulation and a General Model
  17. Density-Dependent Mechanisms
  18. Competitive Processes
  19. Cooperative Processes
  20. Feedback Integration
  21. A General Population Model
  22. Analysis of the Model
  23. Environmental and Genetic Effects
  24. Populations in Changing Environments
  25. Environmental Feedback
  26. Complex Density-Dependent Relationships
  27. Systems of Interacting Populations
  28. Interactions Between Two Species
  29. Population Interactions
  30. Cooperative Interactions
  31. Competitive Interactions
  32. Nonlinear Competitive Interactions
  33. Strategies of the Competitor
  34. Predator-Prey Interactions
  35. Nonlinear Predator-Prey Interactions
  36. Predator Functional Responses 
  37. Predation in Variable Environments
  38. Predator and Prey Strategies
  39. Interactions in Space
  40. Movements in Space
  41. Dynamics in Space
  42. The Spread and Collapse of Pest Epidemics
  43. Stability in Space
  44. Population Quality in Space
  45. Environmental Stratification
  46. Interactions Between Many Species (Ecological Communities)
  47. Community Structure
  48. Community Stability
  49. Predation as a Stabilizing Influence
  50. Community Dynamics

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