isms upon others in a series, beginning with plants or 

 scavenging organisms and ending with the largest carnivores. 



Food-cycle 



All the interconnecting Food-chains in a community, 

 syn. food-web. 



Food-niche 



The particular location of an organism in a Food-cycle. 



Food-pyramid 



A graphic representation of the food chain which indi- 

 cates the large numbers of producer organisms at the base 

 and the progressively decreasing numbers of herbivores and 

 carnivores above. 



Food-web 



See Food-cycle. 



Forage 



Unharvested plant material available as food for domestic 

 animals, may be cut for hay or grazed; after cutting it is 

 called Feed. cf. Fodder. 



Forage-acre 



A theoretical concept, the quantity of forage on an acre 

 of land which is completely covered with herbage and com- 

 pletely utilized under proper management. 



Forage-acre Requirement 



The number of forage acres needed for the maintenance 

 of a mature grazing animal for a certain period of time. 



Forage Fish 



Small kinds of fish which reproduce prolifically and are 

 used as prey by predatory fishes. 



Forage Ratio 



This is the ratio of the percentage of a certain prey 



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