农业生态学3种群ppt课件.ppt
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1、农业的种群生态关系,种群 population 同一地区中,同种生物个体的集合。 A population is a group of organisms of the same species which occupies a given area. 种群的边界 种群生态学中的种群边界 The boundaries between populations can be arbitrary. 种群遗传学中的种群边界 In modern population genetics, gene flow can be used as a conceptual tool to define the po
2、pulation boundaries.,1,种群参数,种群大小 population size The population size for unitary organisms, such as mammals, is simply the number of individuals in a given area. For modular organisms, such as plants and corals, the number of ramets or the number of shoots (modules) may give a more meaningful indica
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