coaltech upper olifants river catchment wetland inventory ...

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o Invasive trees – Trees listed in one of the three invasive Categories according to CARA. These species include Populus species, Eucalyptus species, Acacia mearnsii and Pinus species. o Invasives – Including the invasive trees as defined above, and/or herbaceaous invasives, such as Cirsium vulgare. o Weeds – Weeds are species not included in one of the three invasive categories in CARA, but include alien species and a few indigenous species that are a nuisance in disturbed areas. The general description of the dominant vegetation gives an indication of the vegetation structure in the wetland. The vegetation in the wetland often occurs in diverse communities within the wetland. The vegetation structure within the wetland may therefore vary over distance. Figure 19. Attributes in the wetland database Wetland Database for UORC - 86 -
5.11 Wetland types The entire catchment is approximately 15 158 km 2 in extent and the total wetland area is approximately 2 147 km 2 . Wetlands cover approximately 14% of the entire catchment area. 5.11.1 Non-floodplain riparian Non-floodplain riparian wetlands are associated with drainage lines, but they lack the characteristic floodplain features such as oxbows (Kotze et al 2005, Rogers 1995). This, wetland type, along with the seepage wetlands, is the largest wetland type with 34% of the wetlands in the catchment being non-floodplain riparian wetlands. 5.11.2 Floodplain riparian Floodplain riparian wetlands occur in lower-lying areas of the UORC with or without a drainage channel. These wetlands have features, such as oxbows, typically associated with floodplains and are inundated by overspill during a flooding event (Kotze et al 2005, Rogers 1995). Floodplain riparian wetlands are fairly common in the catchment, with 28% of the wetlands classified as floodplain riparian wetlands. 5.11.3 Seepage Seepage wetlands occur where groundwater emerges, and occurs on hillcrests, slopes and adjacent to water courses and pans. Seepage wetlands also include springs (Palmer et al 2002). This wetland type, along with non-floodplain riparian wetlands, is the most common wetland type in the UORC, with 34% of the total wetland area in the catchment falling into this category. Wetland Database for UORC - 87 -
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COALTECH UPPER OLIFANTS RIVER CATCH
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The following aspects are included
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The most common wetland types in th
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The attributes allocated based on t
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6. DATABASE CONSTRAINTS............
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Addendums Addendum A - Plant specie
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Figure 1. Extent of the UORC (refer
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The aim of the wetland layer is to
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3.3 Wetland biodiversity Wetlands p
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Table 1: Species of concern Species
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Species name Common name Hottentot
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Species name Common name Cordylus g
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3.3.2 Birds Various bird species ut
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3.3.6 Fish The UORC has a low diver
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Figure 2. Schematic illustration of
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3.4.1.2 Floodplain riparian Floodpl
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3.4.4 Other non-riparian wetlands O
Page 35 and 36: 3.5.1.2 Groundwater recharge Variou
Page 37 and 38: More important in the removal of me
Page 39 and 40: The flow velocity in the channel of
Page 41 and 42: The most important fishing activity
Page 43 and 44: 3.5.6.3 Livestock Diseases Various
Page 45 and 46: 3.6.2 Mining and Quarrying There is
Page 47 and 48: • Dwars-in-die-wegspruit at the l
Page 49 and 50: 3.6.4 Burning Wetlands are burnt on
Page 51 and 52: 3.6.9 Alien Fauna and Flora 3.6.9.1
Page 53 and 54: Category 3 plant invaders are plant
Page 55 and 56: o The Fish Assemblage Integrity Ind
Page 57 and 58: Figure 4. The ecoregions of the Oli
Page 59 and 60: Sixteen fish species (four of which
Page 61 and 62: Figure 5. Extent of the UORC accord
Page 63 and 64: 3.9 Common wetland types in UORC Ac
Page 65 and 66: In a wetland assessment conducted a
Page 67 and 68: In a wetland study at Douglas Colli
Page 69 and 70: Figure 8. Status of assessed wetlan
Page 71 and 72: Figure 9. Portion of the wetland la
Page 73 and 74: Figure 11. Portion of the water bod
Page 75 and 76: Figure 13. Portion of the separated
Page 77 and 78: Figure 15. Portion of the wetland l
Page 79 and 80: Since the field verification site v
Page 81 and 82: Figure 18. Portion of the final wet
Page 83 and 84: Upon a request from DWAF the status
Page 85: 5.8 Functions The functions likely
Page 89 and 90: 6. DATABASE CONSTRAINTS The greates
Page 91 and 92: Figure 21. The wetland in the UORC
Page 93 and 94: 8.2 Mapping o Small wetlands (of le
Page 95 and 96: The attributes in the attribute tab
Page 97 and 98: 10. REFERENCES Abbott Grobicki (Pty
Page 99 and 100: Goudie, A.S. & Thomas, D.S.G. 1985.
Page 101 and 102: Merot, P., Squividant, H., Aurousse
Page 103 and 104: Wilson, R.T. 2003. Animal health an
Page 105 and 106: Addendum A - Plan species list Wetl
Page 107 and 108: var. lachnantha Lamiaceae Ajuga oph
Page 109 and 110: Asteraceae Berkheya onopordifolia B
Page 111 and 112: Poaceae Chloris pycnothrix Chloroph
Page 113 and 114: Poaceae Boraginaceae incompletus Cy
Page 115 and 116: Poaceae Echinochloa cruspavonis * *
Page 117 and 118: Asteraceae Gamochaeta subfalcata Y
Page 119 and 120: Sterculiaceae Sterculiaceae Poaceae
Page 121 and 122: Cyperaceae Kyllinga erecta Kyllinga
Page 123 and 124: Asteraceae Nidorella anamola Nympho
Page 125 and 126: Polygonaceae Apiaceae Poaceae Apiac
Page 127 and 128: Brassicaceae Rorippa nudiuscula * *
Page 129 and 130: Poaceae Setaria verticillata * Malv
Page 131 and 132: Asteraceae Ursinia nana * * * Lenti
Page 133 and 134: Addendum B - Mammal species list We
Page 135 and 136: Cynictis Yellow Carnivora penicilla
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Addendum C - Bird species list Wetl
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Actitis hypoleucos Actophilornis Co
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Ceryle rudis Nectarinia Pied Kingfi
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Eremopterix verticalis Estrilda ast
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Netta erythrophthalma Numida meleag
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Spizocorys conirostris Pinkbilled L
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Addendum D - Reptile species list W
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Elapidae Naja haje Egyptian cobra X
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Group Species name Common name Pipi
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Addendum F - Fish species list Wetl
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Austroglansis sclateri X X Barbus a
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Phylum Group Species name Common na
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Arachnida Tanycypris obtusa Hydroze
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gibba Daphnia pulex Simocephalus ca
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Ischnura senegalensis Pseuddgrion s
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Micronecta sp. Micronecta piccanin
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Hydraenidae Hydrophilida e Berosus
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MOLLUSCA Simulium adersi Simulium ?
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