Sentence:  And in the island regions of southeast Asia, where the descendants of "erectus", and the <WSD>Hobbit</WSD>, and any similar relict populations lived, climate changes would have greatly disrupted connections between regions and populations, as sea levels rose and fell by 100 metres or more. 
Meaning of the word marked with <WSD> tags:  An extinct species of hominin, "Homo floresiensis", with a short body and relatively small brain, fossils of which have been recovered from the Indonesian island of Flores.