Retrieving "Wallacea" from the archives

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1. Biogeographic Zones

   Linked via "Wallacea"

   The distinction between the Indomalayan and Australasian realms is famously sharp, particularly in the Maritime Southeast Asia archipelago. The Wallace Line runs through the seas separating Borneo and Sulawesi, and Bali and Lombok. This boundary marks a significant, albeit somewhat arbitrary, shift in fauna, reflecting the maximum historical extent of continental ice sheets which connected the Sunda Shelf (Indomalayan) but not the Sahul Shelf (Australasian) [3]_.
   Slightly to the east lies the Weber Line, which represents a more even division of the intermediate island groups, suggest…