1. Introduction 2. Oceanic Types and Their Controls.- 3. The Ecoregions of the Oceans.- 4. Continental Types and Their Controls.- 5. Ecoregions of the Continents: The Polar Ecoregions.- 6. The Humid Temperate Ecoregions.- 7. The Dry Ecoregions.- 8. The Humid Tropical Ecoregions.- 9. The Mountain Ecoregions.- 10. Ecoregion Redistribution under Climate Change.- 11. Continental Patterns and Boundaries.- 12. Application of Ecoregional Patterns.- 13. Fire Regimes at the Ecoregion Scale.- 14. Summary and Conclusions.- Appendix A: Air Masses and Frontal Zones.- Appendix B: Common and Scientific Names.- Appendix C. Conversion Factors.- Appendix D. Comparison of Ecoregion and Related Approaches. sakriti opis