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9. South African Freshwater Habitats, Vegetation Biogeograpahy

Freshwater Aquatic Habitats. streams, waterfallsrivers (slow or fast flowing rivers)lakestemporary water pools (pans)Wetlandslagoons, estuaries. Zonality. Zonal veg.: veg. typical of climatic zones forms integrated part of biomes influenced by complex macroclimate that exert control over st

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9. South African Freshwater Habitats, Vegetation Biogeograpahy

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    1. 9. South African Freshwater Habitats, Vegetation & Biogeograpahy

    2. Freshwater Aquatic Habitats streams, waterfalls rivers (slow or fast flowing rivers) lakes temporary water pools (pans) Wetlands lagoons, estuaries

    26. Wetland Transformation water scarce resource in semiarid SA wetlands natural sponges - flood controls natural filters of water wetlands important for most SA wetlands small, along rivers most common transformation: dams industrial and domestic use, irrigation, livestock changes in: water cover and depth seasonality flow of sediment nutrients species composition

    28. Aliens

    29. More slippery aliens………

    30. Changes in ecosystem function predation competition habitat changes complete ecosystem transformation & replacement

    31. Biogeographic consequences unnatural freshwater connections erodes biogeographic barriers water transfer schemes

    33. Aquatic ecoregions of southern Africa

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