Paardevlei Dam (34051849) | |
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Western Cape | |
CWAC status | REGISTERED-COUNTED IRREGULARLY |
Authority | Private |
Management status | UNKNOWN |
Conservation status | PARTLY PROTECTED |
IBA information | |
Ramsar information | |
Heritage information | |
View Cards | Click here |
Information |
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Date_registered |
1993-01-16 |
Brief_description |
Dam fed by Lourens River; usually no outlet. Until early 1991, habitat in fairly healthy condition with much submerged vegetation providing food for large numbers (up to 478) of Redknobbed Coot. Subsequent eutrophication resulting from fertilisers in water from river led to death of submergents and departure of coot. Counts show large numbers of Whitebreasted Cormorant, Darter, Egyptian Goose and Blacksmith Plover, especially in summer. Good numbers of Reed Cormorant in summer 1995; very few duck except Yellowbilled. 34 Whitewinged Tern recorded summer 1993; 10 Arctic Tern summer 1996, and 21 Avocet winter 1995. Decline apparent in number of species recorded. Eutrophication a critical threat; recent filling of dam during winter rains, when water's fertiliser content lowest, may, if repeated, help alleviate the problem. |
Spp | Common name | Taxonomic name | Min | Avg | Max | IBA | Subregional IBA | RAMSAR |
---|---|---|---|---|---|---|---|---|
1016 | Anas platyrhynchos | 1 | 1.00 | 1 | ||||
72 | Scopus umbretta | 1 | 1.40 | 2 | ||||
269 | Avocet, Pied | Recurvirostra avosetta | 21 | 42.00 | 63 | |||
212 | Coot, Red-knobbed | Fulica cristata | 1 | 134.27 | 549 | |||
48 | Cormorant, Cape | Phalacrocorax capensis | 2 | 2.00 | 2 | |||
50 | Cormorant, Reed | Microcarbo africanus | 1 | 12.39 | 68 | |||
47 | Cormorant, White-breasted | Phalacrocorax lucidus | 5 | 73.88 | 167 | 130 | ||
203 | Crake, Black | Zaporina flavirostra | 3 | 5.00 | 8 | |||
216 | Crane, Blue | Grus paradisea | 2 | 2.00 | 2 | |||
52 | Darter, African | Anhinga rufa | 1 | 27.79 | 96 | |||
95 | Duck, African Black | Anas sparsa | 1 | 1.83 | 2 | |||
101 | Duck, Fulvous Whistling | Dendrocygna bicolor | 5 | 5.00 | 5 | |||
103 | Duck, Maccoa | Oxyura maccoa | 2 | 6.00 | 14 | |||
100 | Duck, White-faced Whistling | Dendrocygna viduata | 8 | 9.00 | 10 | |||
96 | Duck, Yellow-billed | Anas undulata | 2 | 18.88 | 143 | |||
60 | Egret, Intermediate | Ardea intermedia | 1 | 2.50 | 11 | |||
59 | Egret, Little | Egretta garzetta | 1 | 2.67 | 4 | |||
61 | Egret, Western Cattle | Bubulcus ibis | 1 | 8.20 | 27 | |||
149 | Fish Eagle, African | Haliaeetus vocifer | 1 | 1.25 | 2 | |||
86 | Flamingo, Greater | Phoenicopterus roseus | 1 | 229.00 | 456 | |||
87 | Flamingo, Lesser | Phoeniconaias minor | 35 | 127.50 | 220 | |||
207 | Flufftail, Striped | Sarothrura affinis | 1 | 1.00 | 1 | |||
89 | Goose, Egyptian | Alopochen aegyptiaca | 2 | 275.58 | 1534 | |||
88 | Goose, Spur-winged | Plectropterus gambensis | 1 | 6.20 | 22 | |||
5 | Grebe, Black-necked | Podiceps nigricollis | 4 | 6.50 | 9 | |||
4 | Grebe, Great Crested | Podiceps cristatus | 1 | 1.00 | 1 | |||
6 | Grebe, Little | Tachybaptus ruficollis | 1 | 4.91 | 11 | |||
263 | Greenshank, Common | Tringa nebularia | 1 | 2.60 | 5 | |||
289 | Gull, Hartlaub's | Chroicocephalus hartlaubii | 1 | 3.67 | 9 | |||
287 | Gull, Kelp | Larus dominicanus | 1 | 6.47 | 25 | |||
55 | Heron, Black-headed | Ardea melanocephala | 1 | 1.80 | 4 | |||
54 | Heron, Grey | Ardea cinerea | 1 | 5.36 | 33 | |||
57 | Heron, Purple | Ardea purpurea | 1 | 1.00 | 1 | |||
81 | Ibis, African Sacred | Threskiornis aethiopicus | 1 | 13.46 | 67 | |||
83 | Ibis, Glossy | Plegadis falcinellus | 1 | 17.00 | 30 | |||
84 | Ibis, Hadada | Bostrychia hagedash | 1 | 5.62 | 13 | |||
395 | Kingfisher, Giant | Megaceryle maxima | 1 | 1.00 | 1 | |||
397 | Kingfisher, Malachite | Corythornis cristatus | 1 | 1.25 | 2 | |||
394 | Kingfisher, Pied | Ceryle rudis | 1 | 2.55 | 6 | |||
245 | Lapwing, Blacksmith | Vanellus armatus | 1 | 20.64 | 88 | |||
509 | Martin, Brown-throated | Riparia paludicola | 1 | 1.00 | 1 | |||
210 | Moorhen, Common | Gallinula chloropus | 1 | 2.68 | 9 | |||
69 | Night Heron, Black-crowned | Nycticorax nycticorax | 1 | 2.50 | 5 | |||
42 | Pelican, Great White | Pelecanus onocrotalus | 10 | 10.00 | 10 | |||
237 | Plover, Kittlitz's | Charadrius pecuarius | 3 | 3.00 | 3 | |||
238 | Plover, Three-banded | Charadrius tricollaris | 1 | 2.17 | 5 | |||
102 | Pochard, Southern | Netta erythrophthalma | 7 | 16.50 | 26 | |||
258 | Sandpiper, Common | Actitis hypoleucos | 1 | 1.13 | 2 | |||
90 | Shelduck, South African | Tadorna cana | 2 | 9.00 | 35 | |||
94 | Shoveler, Cape | Anas smithii | 1 | 12.22 | 71 | |||
85 | Spoonbill, African | Platalea alba | 1 | 5.70 | 25 | |||
270 | Stilt, Black-winged | Himantopus himantopus | 2 | 54.29 | 140 | |||
10007 | Swan, Black | Cygnus atratus | 2 | 2.00 | 2 | |||
884 | Swan, Mute | Cygnus olor | 1 | 1.00 | 1 | |||
98 | Teal, Cape | Anas capensis | 1 | 5.00 | 12 | |||
97 | Teal, Red-billed | Anas erythrorhyncha | 1 | 15.67 | 60 | |||
294 | Tern, Arctic | Sterna paradisaea | 10 | 10.00 | 10 | |||
290 | Tern, Caspian | Hydroprogne caspia | 1 | 1.20 | 2 | |||
291 | Tern, Common | Sterna hirundo | 1 | 1.50 | 2 | |||
296 | Tern, Sandwich | Thalasseus sandvicensis | 6 | 6.00 | 6 | |||
10009 | Tern, Unidentified | N/A N/A | 4 | 4.00 | 4 | |||
305 | Tern, Whiskered | Chlidonias hybrida | 1 | 1.00 | 1 | |||
304 | Tern, White-winged | Chlidonias leucopterus | 34 | 34.00 | 34 | |||
274 | Thick-knee, Water | Burhinus vermiculatus | 2 | 2.00 | 2 | |||
686 | Wagtail, Cape | Motacilla capensis | 1 | 2.85 | 7 |