ipsefact

All parts or aspects of the environment that an individual, colony, population, or species of animal has modified chemically or physically by its own behaviour (e.g., a nest or home, rodent or deer runs, excrement, pheromones). ... Origin: L. Ipse, self, + factum, a thing done ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

ipsefact

Type: Term Pronunciation: ip′se-fakt Definitions: 1. All parts or aspects of the environment that an individual, colony, population, or species of animal has modified chemically or physically by its own behavior (a nest or home, rodent or deer runs, excrement, pheromones).
Found on http://www.medilexicon.com/medicaldictionary.php?t=45647
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