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Paardevlei Dam (34051849)

Western Cape

Authority Private
Management status UNKNOWN
Conservation status PARTLY PROTECTED
IBA information
Ramsar information
Heritage information
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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.

SppCommon nameTaxonomic nameMinAvgMaxIBASubregional
72Scopus umbretta11.402   
1016Anas platyrhynchos11.001
269Avocet, PiedRecurvirostra avosetta2142.0063   
212Coot, Red-knobbedFulica cristata1134.27549   
48Cormorant, CapePhalacrocorax capensis22.002   
50Cormorant, ReedMicrocarbo africanus112.3968   
47Cormorant, White-breasted Phalacrocorax lucidus573.88167  130
203Crake, BlackZapornia flavirostra35.008
216Crane, BlueGrus paradisea22.002   
52Darter, AfricanAnhinga rufa127.7996   
95Duck, African BlackAnas sparsa11.832   
101Duck, Fulvous WhistlingDendrocygna bicolor55.005   
103Duck, MaccoaOxyura maccoa26.0014   
100Duck, White-faced WhistlingDendrocygna viduata89.0010   
96Duck, Yellow-billedAnas undulata218.88143   
149Eagle, African FishHaliaeetus vocifer11.252
60Egret, IntermediateArdea intermedia12.5011   
59Egret, LittleEgretta garzetta12.674   
61Egret, Western CattleBubulcus ibis18.2027   
86Flamingo, Greater Phoenicopterus roseus1229.00456   
87Flamingo, LesserPhoeniconaias minor35127.50220   
207Flufftail, StripedSarothrura affinis11.001
89Goose, EgyptianAlopochen aegyptiaca2275.581534   
88Goose, Spur-wingedPlectropterus gambensis16.2022   
5Grebe, Black-neckedPodiceps nigricollis46.509   
4Grebe, Great CrestedPodiceps cristatus11.001   
6Grebe, LittleTachybaptus ruficollis14.9111   
263Greenshank, CommonTringa nebularia12.605   
289Gull, Hartlaub'sChroicocephalus hartlaubii13.679   
287Gull, KelpLarus dominicanus16.4725   
69Heron, Black-crowned NightNycticorax nycticorax12.505   
55Heron, Black-headedArdea melanocephala11.804   
54Heron, GreyArdea cinerea15.3633   
57Heron, PurpleArdea purpurea11.001   
81Ibis, African SacredThreskiornis aethiopicus113.4667   
83Ibis, GlossyPlegadis falcinellus117.0030   
84Ibis, Hadada Bostrychia hagedash15.6213   
395Kingfisher, GiantMegaceryle maxima11.001
397Kingfisher, MalachiteCorythornis cristatus11.252
394Kingfisher, PiedCeryle rudis12.556
245Lapwing, BlacksmithVanellus armatus120.6488   
509Martin, Brown-throatedRiparia paludicola11.001
210Moorhen, CommonGallinula chloropus12.689   
42Pelican, Great WhitePelecanus onocrotalus1010.0010   
237Plover, Kittlitz'sCharadrius pecuarius33.003   
238Plover, Three-bandedCharadrius tricollaris12.175   
102Pochard, SouthernNetta erythrophthalma716.5026   
258Sandpiper, CommonActitis hypoleucos11.132  
90Shelduck, South AfricanTadorna cana29.0035   
94Shoveler, CapeSpatula smithii112.2271   
85Spoonbill, AfricanPlatalea alba15.7025   
270Stilt, Black-wingedHimantopus himantopus254.29140   
10007Swan, Black Cygnus atratus22.002
884Swan, MuteCygnus olor11.001
98Teal, CapeAnas capensis15.0012   
97Teal, Red-billedAnas erythrorhyncha115.6760   
294Tern, ArcticSterna paradisaea1010.0010  
290Tern, CaspianHydroprogne caspia11.202   
291Tern, CommonSterna hirundo11.502   
296Tern, SandwichThalasseus sandvicensis66.006   
10009Tern, UnidentifiedN/A N/A44.004
305Tern, WhiskeredChlidonias hybrida11.001   
304Tern, White-wingedChlidonias leucopterus3434.0034   
274Thick-knee, WaterBurhinus vermiculatus22.002   
686Wagtail, CapeMotacilla capensis12.857
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Wednesday 06 December 2023 07:55
FitzPatrick Institute of African Ornithology
Department of Biological Sciences - University of Cape Town

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