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This Concept Map, created with IHMC CmapTools, has information related to: Threats, Weed invasion (exotic & native) this decreases Grassland health - structure - species diversity - weeds - area of native grass - amount of topsoil - self-sustaining - spatial/temporal mosaic, Grassland health - structure - species diversity - weeds - area of native grass - amount of topsoil - self-sustaining - spatial/temporal mosaic Impacts on Grassland invertebrates, Urban development reduced habitat Grassland birds, Grassland health - structure - species diversity - weeds - area of native grass - amount of topsoil - self-sustaining - spatial/temporal mosaic Impacts on Threatened species and communities, Nutrient and fertilizer inputs more suitable for Weed invasion (exotic & native), Trampling and soil compaction causes Damage to soil crust, Change in species composition decreases Grassland health - structure - species diversity - weeds - area of native grass - amount of topsoil - self-sustaining - spatial/temporal mosaic, Grassland health - structure - species diversity - weeds - area of native grass - amount of topsoil - self-sustaining - spatial/temporal mosaic Impacts on Grassland birds, Illegal collection (e.g. orchids) reduce abundance Threatened species and communities, Removal of rocks and other shelter reduce habitat Grassland invertebrates, Lack of awarenss (incomplete ecological knowledge?) can cause Inappropriate fire regime, Lack of awarenss (incomplete ecological knowledge?) can cause Inappropriate disturbance regime, Grassland health - structure - species diversity - weeds - area of native grass - amount of topsoil - self-sustaining - spatial/temporal mosaic can be measured by Floristic diversity, Illegal shooting reduce abundance Grassland birds, Dominant grass species become over-abundant reduces florisitc diversity this decreases Grassland health - structure - species diversity - weeds - area of native grass - amount of topsoil - self-sustaining - spatial/temporal mosaic, Introduced herbivores (e.g.rabbits) gaps seeds Weed invasion (exotic & native), Urban development increases Fragmentation, Urban development reduced habitat Grassland reptiles, Inappropriate fire regime leads to Inappropriate disturbance regime, Grassland health - structure - species diversity - weeds - area of native grass - amount of topsoil - self-sustaining - spatial/temporal mosaic can be measured by Trends in key species