The Lectron System Ökologie (Ecology) model was profiled in the Funktionsmodelle brochure that I acquired in September of 2013. Thanks to Günther Stabe who pointed out the the same book that was used for the Funktionsmodelle was used for this model as well. Specifically chapters 5.5 through 5.7, 5.8.5, 5.16, 5.16.1, 5.18.1 and particularly chapter 7 which is named ‘Modelle zur Ökologie‘ (Ecological models).
Some of the experiments covered included (sorry for the rough English translations):
1. Mutual inhibition between several canals (channels)
2. Burst generator
3. Mutual inhibition of behavior patterns
4. Misplaced inhibition
5. To exclusionary actions
Yet another very rare model never as of yet seen for sale on eBay since I began my research in 2012.