Faciation 



A part of a Climax Association (sensu Clements) which 

 lacks some of the dominants of the association because of 

 slight differences in environmental conditions, cf. Lociation. 



Facies 



(1) See Faciation. (2) The general appearance or aspect 

 of a plant, population, or community, cf. Aspection. (3) A 

 modification of the Bio tope, differing recurrently from the 

 typical conditions in minor ways. (4) A variation in a com- 

 munity such as a dogwood or mountain laurel shrub facies 

 in an oak forest. 



Facilitation, Social 



The effect of the presence of one organism upon the 

 behaviour of another. 



Factor, Ecological 



Any part of the environment that influences the life of 

 an organism, cf. Biotic, Limiting, Density-dependent factors. 



Facultative 



Refers to the capability of an organism to live under 



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