alfred russel wallace asia australia biodiversity biological dispersal biology bird migration charles darwin climatology coastal geography conservation biology continental drift digital object identifier ecological land classification ecology ecoregion ecozone evolution extinction geography geology geomorphology glaciology gondwana habitat fragmentation hawaiian islands hydrography hydrology island biogeography journal of biogeography landscape ecology laurasia limnology macroecology miklos udvardy neogene north america oceanography palaeogeography paleoclimatology paleogene panbiogeography phylogeography phytogeography plate tectonics quaternary science robert macarthur sea level soil science space speciation the theory of island biogeography time zoogeography