| 1. | Population dynamics the study of the factors influencing the fluctuations in numbers in a population or of its gene pool : the factors affecting birth and morality rates , immigration and emigration , and reproductive potential ( for example , seed size , dispersal , and dormancy ) 种群动态:主要研究影响种群及其基因库数量波动因素:这些因素影响种群内出生率、死亡率、迁入及迁出、生殖潜力(如种子的大小、传播以及休眠) 。 |