常見例句雙語例句Fig trees are a keystone species in the ecosystem of tropical rainforest in Xishuangbanna.榕樹是熱帶雨林生態(tài)系統(tǒng)中的一類關(guān)鍵物種。Based on the research of the keystone species, the concept of species importance (SI) was first advanced in this paper.在對關(guān)鍵種的研究基礎(chǔ)上,首次提出了物種重要性(SI)概念。We must make sure that Redd+ projects are located in biodiversity-rich areas where keystone species such as great apes are struggling to survive.我們必須確保Redd+項目落實到具有豐富的生物多樣性的地區(qū),因為這里類人猿等關(guān)鍵物種正生活在“水深火熱”之中。權(quán)威例句Whatever the mechanism, though, this study provides what no previous study ever has: evidence from a controlled experiment that keystone species really exist.ECONOMIST: Ecology: Under the mistletoe TheLike the humble starfish that preserves entire marine ecosystems by eating mussels, the American public library is the keystone species in the ecosystem of reading.FORBES: Why Public Libraries Matter: And How They Can Do MoreMistletoe is thus acting as what ecologists refer to as a keystone species: it supports an entire ecosystem, and removing it has drastic effects for the whole.ECONOMIST: Ecology: Under the mistletoe The 返回 keystone species