This Insight Maker model shows how eagles, as predators, and rats, as prey, interact over time using a predator-prey system. Rats reproduce and grow in number, but their population decreases when eagles hunt them. Eagles increase in number when they eat rats, but their population also declines natur
Animals Environment Predators Population Growth Ecology
This Insight Maker model shows how eagles, as predators, and rats, as prey, interact over time using a predator-prey system. Rats reproduce and grow in number, but their population decreases when eagles hunt them. Eagles increase in number when they eat rats, but their population also declines naturally. The model helps visualize how both populations rise and fall depending on each other.
Predation Prey Model
Hanna M. Regis
4 weeks ago
Simple Model of the Food Chain
Environment Animals Food Chain
Simple Model of the Food Chain
Food Chain
Hanna M. Regis
4 weeks ago
The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors. THIS MODEL BY GUY LAKEMAN, FROM METRICS OBTAINED USING A MORE COMPREHENSIVE VENSIM SOFTWARE MODEL, SHOWS CURRENT CONDITIONS CREATED BY THE LATEST W
Jobs Resources Strategy Engineering Technology Sea Economics Ocean Science Mortality Animals Demographics Rural Industrial Urban Services Labor Land Death Fish Population Growth Population Weather Politics Failure Climate Yield Regeneration Fertility Health Pollution Environment Plants Lifetime

The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors.

THIS MODEL BY GUY LAKEMAN, FROM METRICS OBTAINED USING A MORE COMPREHENSIVE VENSIM SOFTWARE MODEL, SHOWS CURRENT CONDITIONS CREATED BY THE LATEST WEATHER EXTREMES AND LOSS OF ARABLE LAND BY THE  ALBEDO EFECT MELTING THE POLAR CAPS TOGETHER WITH NORTHERN JETSTREAM SHIFT NORTHWARDS, AND A NECESSITY TO ACT BEFORE THERE IS HUGE SUFFERING.
BY SETTING THE NEW ECOLOGICAL POLICIES TO 2015 WE CAN SEE THAT SOME POPULATIONS CAN BE SAVED BUT CITIES WILL SUFFER MOST. 
CURRENT MARKET SATURATION PLATEAU OF SOLID PRODUCTS AND BEHAVIORAL SINK FACTORS ARE ALSO ADDED

Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amount of non-renewable resources (which could occur through the development of better exploration technologies) improve our future? Also, experiment with the start date of a low birth-rate, environmentally focused policy.

Clone of 2014 Weather & Climate Extreme Loss of Arable Land and Ocean Fertility - The World3+ Model: Forecaster
Olivier K
2 days ago