Spanish ⇄ Arabic Basque Bulgarian Catalan Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hungarian Irish Italian Latvian Lithuanian Maltese Norwegian Bokmål Polish Portuguese Romanian Russian Slovak Slovene Swedish Turkish Ukrainian

nivel trófico
biol.	营养级; 食性层次
environ.	营养水平 (通过生态系统的能量通道而收益的任何摄食水平，例子包括：光合植物、草食动物和衰变的微生物。)
ichtyol.	营养的层次