Mariana participated in a study on Sapelo Island, Georgia under Dr. Safra Altman and Dr. Jeb Byers. This ongoing study is investigating the effectiveness of different methods used to delineate the marsh edge--elevation, vegetation, and energy transfer, among others. One aspect of the research includes Armases cinereum, the square-back marsh crab, acting as a biotic vector for transfer of energy and nutrients between the marsh and the upland. For this reason, Mariana chose to conduct a related side project during her stay on Sapelo Island. She investigated the patterns of arboreal movement of the semi-terrestrial crabs, which may be a driving force of energy transfer.