1. The hummingbird and the flower have a mutualistic econiche relationship where the bird feeds on the nectar while pollinating the flower.
蜂鳥(niǎo)和花朵之間存在一種互利共生的生態(tài)位關(guān)系,蜂鳥(niǎo)以花蜜為食,同時(shí)為花朵傳粉。
2. Different species of birds have evolved different econiches to avoid competition for food within their habitats.
不同物種的鳥(niǎo)類(lèi)在其棲息地內(nèi)進(jìn)化出了不同的生態(tài)位,以避免對(duì)食物的競(jìng)爭(zhēng)。