I've been associated with professors at the Yale School of Forestry since 1993. This collection of simulators covers more high-level interactions of humans with their environment. The Habitable Planet topic is a subset of these, done for Harvard-Smithsonian and the Annenberg Foundation.

Demographics Lab

Demographics explores population growth pyramids, much like my earlier Human Demographics simulator, where you can change birth and death rate schedules. In this rendition, the user can set vital rates to match those of a different country. (E.g., how would India's population develop under US birthrates.) Countries: USA, China, Egypt, India, Italy, Mexico, and Nigeria.

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Disease Lab

Disease demonstrates contagious disease spread through a population. Three diseases (Kold, Impfluenza, and Red Death) are supplied, and the user can create variations with different incubation, deathrate, etc. parameters. Explores the effects of population density, population mixing, vaccination strategies, and pitting one virus against another.

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Human Demographics

Human Demographics explores human population growth and the current demographic transition. Allows students to shift and change fertility and mortality rates. Shows overall population growth, both officially projected and simulated, and population pyramids, for 7 example countries (USA, China, Egypt, Germany, India, Italy, Mexico.) Used in teaching Environmental
Science and Conservation Biology.

Reimplemented in HTML5 for The Habitable Planet treatment of Demographics.

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Foodweb Kerplunk

In the game Foodweb Kerplunk, the player tries to save species in a plot of suburban California chaparral. Foodweb Kerplunk has been featured as an NRDC website pick of the week (Mar'03), and in Mitch Leslie's NetWatch column in Science (Feb'03).

Kerplunk has been republished for German middle-schoolers by the SWR broadcasting company.

A Foodweb Kerplunk Lab for high school biology students, written by Adam James, Biology Teacher and Football Coach, at Carter-Riverside High School, Fort Worth ISD, Texas (2005).

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