Modelagem do estado psicológico de uma população. Inicialmente, todos os indivíduos estão no estado "Calmo". Com o passar do tempo e com as interações mútuas, há o surgimento e progressivo aumento do total de indivíduos com raiva (estado "Raivoso"). Deste estado e, com o passar do tempo, os indivíduos podem evoluir mentalmente e atingirem o estado "Indiferente", nos quais eles se tornam indiferentes à qualquer interação. Outra possibilidade é o indivíduo se enriquecer e, assim, atingir a felicidade (estado "Feliz").

The SEQ Koala Population over recent years has suffered due to a number of factors; habitat loss, predators, natural disasters, health issues and road fatalities to name a few.  All the while conservation efforts are being made to aid the population growth of  the national icon.

This insight draws together these contributing factors into a single population model (simulation).  This model begins with the known 2006 population and it projected based on current decline rates.  Accuracy is limited, however the downward trend is clearly evident.

Developed by Patrick O'Shaughnessy

Flows between acute hospital and aged care for older people. See IM-1012 for a simpler version

A system dynamics model of a predator-prey lifecycle relationship

This simulation examines carrying capacity of rural and urban populations

UDB101 Assignment 1D

Koala Population Case Study

Sian Phillips

Adapted from Hartmut Bossel's "System Zoo 3 Simulation Models, Economy, Society, Development."

​Population model where the population is summarized in four age groups (children, parents, older people, old people). Used as a base population model for dealing with issues such as employment, care for the elderly, pensions dynamics, etc.

Show projection of birth and death rate over time for Italy.

Modeling water saving potential with urban planning, demand management practice, and alternative technologies

This in-depth concept map portrays the factors influencing koala births and deaths in SEQ. It also shows that the eucalyptus tree population in SEQ is vital for the survival of the koala.

Verkoppelung der drei Teilmodelle zu einem Gesamtmodell, der "Miniwelt" im Umfang von Bossel.

Influence of migration on the number of working-age population.

This is a basic BIDE (birth, immigration, death, emigration) model.  Not all parts are implemented, however Birth and Death are.

First model with population 1000 and simulation for 20 years fixed.

Simulation of how tiger population and anti poaching efforts effect the black market value of tiger organs.

To keep control on wildlife deer populations two means are available; killing by hunters or sterilization and castration. This model allows investigating the best possible method and …  actual risk on extinction caused by proposed solutions!

Note 1) Data used in this model are fictitious.

Note 2) Govenrments preferred solution are hunters because this will generate income from licences, sterilization and castration only will generate costs; forester, transport, vet, medical. govenrments should make a stand up for the animals.

Note 3) Other solutions do exist and detail could be added to this analysis model that could result in even better solutions. 

Kind regards,  J.B. van Doesburg

This is a basic BIDE (birth, immigration, death, emigration) model.  Not all parts are implemented, however Birth and Death are.

A simple simulation used to observe the California Yellowtail population in San Diego

This is a basic BIDE (birth, immigration, death, emigration) model.  Not all parts are implemented, however Birth and Death are.

Coupled Population-Housing Dynamics Model