An updated mammalian biochronology and biogeography for the early paleogene of asia .
亚洲早古近纪哺乳动物生物年代学与生物地理学的新认识。
Historical biogeography attempts to reconstruct the biota history of the earth .
历史生物地理学重建生物区系历史。
To understand this " metacommunity " of host and microbes , relman says , it is important to understand how it can vary over space and time ( or what ecologists call biogeography ) .
