短語詞組短語trophic ecological niche 營養(yǎng)生態(tài)位trophic niche Phrynocephalus przewalskii 營養(yǎng)生態(tài)位Trophic niche overlap 營養(yǎng)生態(tài)位重疊trophic niche breadth 營養(yǎng)生態(tài)位寬度trophic niche width 營養(yǎng)生態(tài)位寬度 返回 trophic niche