Some larvae extend the galleries to form niches.许多幼虫将坑道延伸扩大成壁龛.In his view differences in adaptation are insufficient to create niches commensurate in number and kind.按照他的观点,适应的差异不足以在数量上和种类上形成同量的小生境.Species occupying the...

niches的音标：...

n.壁龛( niche的名词复数 )，合适的位置[工作等]，（产品的）商机，生态位（一个生物所占据的生境的最小单位）...