Abstract: This study includes an investigation of the status and ecology of the angonoka, or ploughshare, tortoise in its native range in western Madagascar. Data were collected on demography, movements, and reproduction in a population on Cap Sada and regional surveys for populations were also conducted. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "The Status and Ecology of the Angonoka Tortoise (Geochelone Yniphora) of Western Madagascar" by Lora L. Smith, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.