n this paper, the parameters in the species-area ,species-latitude and species-area-lati-tude models of vertebrates of some countries in the world were esetimated ,which were notaffected by the “island effect”of equilibrium hypothesis. The results indicated that the param-eter z in mainland habitat environments is not snialler than that in island or habitat“island”environments as widely believed. It was closely related to sampling scope and size of area aswell as habitat heterogoneity. The species-area-lati...