Baja California peninsula oases: An agro-biodiversity of isolation and integration |
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| Institution: | 1. University of Arizona, College of Social and Behavioral Sciences, 6170 E. 2nd Street, Tucson, AZ 85711, USA;2. University of Arizona, Southwest Center, USA;1. Department of Civil and Environmental Engineering, Rice University, 6100 Main Street MS-519, Houston, TX 77005, USA;2. School of Sustainable Engineering and the Built Environment, Arizona State University, PO Box 873005, Tempe, AZ 85287, USA;3. School of Molecular Sciences, Arizona State University, PO Box 871604, Tempe, AZ 85287, USA;4. Pinal County Air Quality Control District, 31 N Pinal St # F, Florence, AZ 85132, USA;5. U.S. EPA, Office of Air and Radiation, 4220 S. Maryland Parkway, Bld. C, Las Vegas, NV 89119, USA;6. U.S. EPA, Office of Research and Development, 944 E. Harmon Ave, Rm. 235, Las Vegas, NV 89119, USA;1. Instituto Nacional de Enfermedades Neoplásicas, Departamento de Cirugía en Abdomen, Lima, Peru;2. Aix Marseille Université, UMR912 SESSTIM INSERM-IRD-AMU, Centre d''Epidémiologie et de Santé Publique des Armées, Marseille, France;3. Instituto Nacional de Enfermedades Neoplásicas, Departamento de Patología, Lima, Peru;4. Institut Pasteur, Unité Organisation Nucléaire et Oncogenèse, Paris, France;5. Institut National de la Santé et de la Recherche Médicale, Paris U993, France;6. Université de Toulouse, UPS, UMR152 PHARMADEV, Université Toulouse 3, Toulouse, France;7. Institut de Recherche pour le Développement, UMR152 PHARMADEV, Vientiane, Laos;8. Institut de Recherche pour le Développement, UMR152 PHARMADEV, Lima, Peru;1. Department of Epidemiology, College of Public Health, University of Nebraska Medical Center, Omaha, NE;2. Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, University of Nebraska Medical Center, Omaha, NE;3. Department of Hepatology, Hubei Third People’s Hospital, Wuhan, Hubei, China;4. Department of Health Services Research & Administration, College of Public Health, University of Nebraska Medical Center, Omaha, NE;6. Department of Biostatistics, College of Public Health, University of Nebraska Medical Center, Omaha, NE;1. Department of Surgery, University of Colorado School of Medicine, Aurora, CO;2. Department of Oncology, University of Colorado School of Medicine, Aurora, CO;3. Adult and Child Center for Health Outcomes Research and Delivery Science (ACCORDS), Aurora, CO |
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| Abstract: | Agro-biodiversity in the desert oases of the Baja California peninsula, Mexico is a product of isolation and integration events through time and across peninsular spaces. Historic inventories of agricultural introductions provide a baseline from which to measure Mission-era crop persistence or genetic erosion in fifteen missions established during the Jesuit occupation (1697–1768). These mission-oases function as a network of interconnected sites supporting cultivated plant assemblages isolated from one another and the Mexican mainland by a desert matrix, by limited transportation infrastructure on the peninsula, and the surrounding sea. Garden surveys of perennial crop species and farmer interviews reveal that oases serve as refugia of Mission-era crop species and traditional knowledge. Isolation-connectivity analyses indicate that this agro-biodiversity disappears at the extremes: The most isolated and the fully integrated oases are unable to support heritage perennial crop species and traditional farming systems over long time scales. We describe how phases and processes of isolation and connectivity transform agro-biodiversity composition in this archipelago of peninsula oases and explore policy applications that could preserve this critical diversity and the rare and available oasis communities. |
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| Keywords: | Oases Agro-biodiversity Isolation Integration Baja California peninsula Jesuit missionaries |
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