1·It has been proved that structure of food chain, immigration and emigration, environment noise can influence the pattern of complex population dynamics.
研究表明食物链的结构、种群的迁入和迁出、环境噪音都会对种群的复杂性动态特征产生影响。
2·We analyzed the weather background during the major immigration period in 1999, and stimulated temporal-spatial dynamics of wind field and migration trajectories of the meadow moth.
本文分析了1999年各地草地螟主要迁入峰期的天气学背景，并对风场的时空分布及草地螟迁飞轨迹进行了模拟。
3·Such new places will depend on slow changes of climate, or on the occasional immigration of new inhabitants.
这些新的位置，要靠气候的徐徐变化或新生物的偶然迁入而定。