This models the progressive decline of the ability for self-reliance and the growing dependence on outside help. Z508 p39-42 System Zoo 3 by Hartmut Bossel. Strong outside help causes a collapse of self-help capacity. Weak outside help produces a stable combination of wellbeing and self-help capacity.
An exploration of interactions among 'fuzzy' qualitative concepts that interact to produce either tolerance or violent conflict. Z509 p43-49 System Zoo 3 by Hartmut Bossel.
Exploring the conditions of permanent coexistence, rather than gradual disappearance of disadvantaged competitors. Z506 p32-35 System Zoo 3 by Hartmut Bossel.
Z209 from Hartmut Bossel's System Zoo 1 p112-118. Compare with PCT Example IM-9010
Z205 from System Zoo 1 p95-98
Z207 from Hartmut Bossel System Zoo 1 p103-107
System Zoo Z110: Logistic growth with stock-dependent harvest from System Zoo 1 by Hartmut Bossel
System Zoo Z109: Logistic growth with constant harvest from System Zoo 1 by Hartmut Bossel
Exercise 6 simulates a whale poplutation with a minimum reproductive capacity
Rotating Pendulum Z201 from System Zoo 1 p80-83
System Zoo Z112: Double integration and exponential decay from System Zoo 1 by Hartmut Bossel
Attempting to outdo an opponent leads to escalation. A weaker response leads to De-escalation. A slightly more complex form of Insight 972. Z508 p36-38 System Zoo 3 by Hartmut Bossel.
System Zoo Z106: Simple population dynamics from System Zoo 1 by Hartmut Bossel