Tabla de Contenidos: “…-Mexico relations / Manuel Chavez and Silvia Núñez-García -- Foreign policy and governance in Mexico : a conceptual and operational dilemma / José Luis Valdés-Ugalde -- Mexico-U.S. security : a priority for the bilateral agenda / Leonardo Curzio -- Information, news media and diplomacy under the security and prosperity partnership of North America : increasing cooperation in turbulent times / Manuel Chavez -- Emerging influences in contemporary U.S.…”

Tabla de Contenidos: “…The Concept of Migration in Seed Plants -- Model of the Mechanisms of Geographic Patterning in Seed Plants -- Problems of Scale -- Limitations of the Data Base -- Exclusion of Artificially Controlled Migrations -- Definition of Weeds -- Definition of Natives -- Modern and Historical Migrations -- Shoreline and Other Naturally Open Habitats -- Mangrove Swamps -- River Deltas, Southern Gulf of Mexico -- Coral Cays, Belize -- Great Barrier Reef, Queensland -- Naturalized Mangroves, Hawaii -- Naturalization of Avicennia, California -- Tropical Sea Beaches -- Coral Cays, Belize -- Coral Sand Beaches, Mauritius -- Pyroclastic Beaches, Krakatau -- Introduced Indo-Pacific Species, Mauritius -- Transfers Between Old and New Worlds -- Temperate Sea Beaches and Dunes -- Mid-Atlantic Barrier Islands, United States -- Mustang Island, Texas -- Intercontinental Migration of Ammophila -- Naturalization of Chrysanthemoides, Australia -- Naturalization of Mesembryanthemum, California -- Naturalization of Cakile, Australia and Western North America -- Salt Marshes -- Limited Successions in Coastal Marshes, Britain -- Limited Successions in Coastal Marshes, California -- Primary Succession on a Mediterranean Lagoon, France -- Natural Colonization of Artificial Inland Salt Marshes, Europe and North America -- Naturalized Exotics, California -- Freshwater Aquatic Habitats -- Vernal Pools, California -- Intercontinental Migrations of Elodea and Hydrilla -- Intercontinental Migrations of Eichhornia and Alternanthera -- Riparian Habitats.…”
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