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This 4-minute video is worth watching. It introduces a language for modeling the ecology. At http://www.youtube.com/user/leearnold , it states "the symbols were drawn in Adobe Illustrator, then animated in Adobe After Effects", which means that there isn't good tool support for Ecolanguage, and thus takes a lot of work to construct and maintain these videos.

Video (4 minutes) by Lee Arnold that introduces Ecolanguage. At 0:50, the voiceover and slide say that Ecolanguage was inspired by Howard T. Odum's book, "Environment, Power and Society", 1971.

This 5 minute video describes the notation of Ecolanguage. At 0:25, the voiceover says "There are 25 basic symbols, but there are only 6 kinds". At the bottom of the screen, those kinds are: - Sources - Organisms - Flows - Controls - Storage - Contexts At 4:00, four symbols of context are described: - All purpose (abstract, for anything you want) - Central context (abstract, for ideas and information that a group holds in common, also used to mark the leader of the group) - Land property (the ownership of land) - Price (market transaction) Red symbols mean money, and yellow symbols mean matter-energy. The other color are only symbolic (e.g. green for green plants)

The notation of ecolanguage uses shapes and colors.