(q. v.) within a Coenospecies (q. v.), capable of reproduction, 

 approximately equivalent to Species (q. v.). 



Ecosystem 



The Community (q. v.), including all the component 

 organisms together with the abiotic environment, forming an 

 interacting system, e. g., a marsh, cf. Biogeocenose. 



Ecotone 



A transition line or strip of vegetation between two com- 

 munities which has characteristics of both kinds of neighbor- 

 ing vegetation as well as characteristics of its own. cf. Edge- 

 effect. 



Ecotype 



The smallest Taxon (q. v.) or group of similar Bio types 

 (q. v.) within an Ecospecies (q. v.), each one adapted to a 

 certain combination of environmental conditions. Differ- 

 ences between ecotypes may be morphological, or only physi- 

 ological, cf. Habitat form, Ecad. 



Ectoparasite 



A Parasite living on the outside surface of another or- 

 ganism, e. g., a flea. cf. Endoparasite. 



Ectophagous 



Refers to an organism that feeds from the outside of the 

 structure it is consuming such as a deer feeding on leaves of 

 a plant, cf. Entophagous. 



Ectotrophic 



Refers to fungi that grow on the surface of roots, cf. 

 Endotrophic, Mycorrhiza. 



Edaphic 



Refers to the soil, cf. Edaphic factor. 



Edaphic Climax 



See Climax. 



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