Ecological Restrictions

MODERN SOCIETY AND ECOLOGICAL RESTRICTIONS 7.5.1 Global instability... 

Garrett, P., 1970. Phanerozoic stromatolites noncompetitive ecologic restriction by grazing and burrowing animals. Science, 169 171—173. 

Reported isolations of either yeast outside of fermentation facilities are rare. Van der Walt (1970) reports isolation of Brettanomyces from honey and tree exudates. It appears likely that subsequent transmission to fermenting juice and wine is the result of insect vectors. Aside from this report, the generally accepted habitat of both Brettanomyces and Dekkera is from fermenting products and their associated environs. It is likely that this ecological restriction is the result of their rather fastidious nutritional requirements. 

The following account will be largely restricted to the effects of aldrin, dieldrin, and heptachlor—compounds that were once widely nsed, and for which there is the clearest record of ecological effects. 

Dichromate oxidation does tend to give a harsher handle and a less hydrophilic fibre, tending to cause handling problems in subsequent processes such as weaving, and is therefore less suitable for yarn dyeings. The technical merits of dichromate are overshadowed by ecological considerations, however, since chromium compounds in surface waters pose a direct threat to health and are increasingly restricted by water treatment... 

Overall these conclusions concerning chemistry mean that an ecological system of the following restricted kind can be generated and can evolve. 

Anonymous 1988. New York, Connecticut act to restrict TBT-based paints. Ecology USA, June 6, 1988 107. Arakawa, Y. and O. Wada, 1984. Inhibition of neutrophil chemotaxis by organotin compounds. Biochem. Biophys. Res. Comm. 123 543-548. 

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