Those effects could be seen in earlier bird-migration patterns and egg-laying, earlier flowering of plants and trees, the spread of certain insect species poleward and the spread of tree cover higher up mountains.
这些影响在早期的鸟类移徙形态和产卵、早期的植物和树木开花、某些昆虫物种朝极地转移以及林木植被往更高的山脉延伸中可见一斑。