Tropical Savanna By: Kristin Maushart & Holly Reynolds
Geography
What factors determine the development of savanna vegetation? Climate--including seasonality (if exists) Soils— nutrient-poor, but either well or poorly drained Fire— natural or (more commonly) human-induced Human influences-- cutting, agriculture
Victoria Plains, Australia Trans Fly, Indonesia Kimberly, West Australia East African Savannas Climates
Wildlife Herbivorous Herd Animals
Wildlife ~Carnivorous ~Herds/Solitary
Plant Life Cold temperate steppe: growing season. Cold temperate steppe: dormant season.
Plant Life High rainfall tropical savanna: growing season. High rainfall tropical savanna: dormant season.
Fire Most types show evidence of frequent fire Morphological “adaptations” to withstand it
Human Influences Conversion of savanna/forest to agriculture, grazing land; charcoal extraction Higher ground-level temperatures (“albedo”) by loss of vegetation cover Increased erosion, soil compaction Reduced soil nutrients