| 释义 |
background extinction
background extinctionn. The ongoing low-level extinction of individual species over very long periods of time due to naturally occurring environmental or ecological factors such as climate change, disease, loss of habitat, or competitive disadvantage in relation to other species.background extinction
background extinction[′bak‚grau̇nd ik‚stiŋk·shən] (evolution) Intervals of lower extinction intensity between mass extinctions. |