Using complex models of climate change and migration patterns,they forecast that some of the habitats will end up a quarter of their previous size,with one in five of their species forced into extinction.

• 他们利用复杂的气候变化模型和迁移模式做出预测，这些栖息地有的将缩小到原来面积的1/4，从而使其中1/5的物种灭绝。