Jo Anne Van Tilburg of Rapa Nui's role in Polynesian seafaring history; Explore the natural environment of the Pacific Ocean and the ecology of Rapa Nui as part of that environment; Develop cultural exchanges with other Pacific islanders and continental peoples through the celebration of Rapa Nui maritime skills. Jo Anne Van Tilburg Jo Anne Van Tilburg is an American archaeologist best known for her research on the statues of Easter Island (Rapa Nui). Her primary specialty is rock art. Van Tilburg was born in Minneapolis, Minnesota and graduated from the University of Minnesota in 1965, receiving her Ph.D. from the University of California
Rapa Nui people analysis conducted on sediment layers from swamps or ponds. From these samples, 22 no longer present on the island were shown to have existed at some time there. These plants included a giant palm, the Rapa Nui Palm, that showed signs of being the largest palm species in the world, eclipsing the size of the Chilean Wine Palm if it were not extinct. There are also signs of Easter Island's once possessing a far more diverse collection of fauna. The skeletal remains of 25 different species of nesting bird have been located on the island, but have since been reduced