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Jakkalsvlei (32051819)

Western Cape

CWAC status REGISTERED-COUNTED REGULARLY
Authority Cape Nature
Management status TOWN COUNCIL PROPERTY
Conservation status UNPROTECTED
IBA information
Ramsar information
Heritage information
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Information 

Date_registered
1997-01-20
Brief_description
A lagoon at the mouth of the Jakkals River. Open water, with very little emergent vegetation; shorelines of sand and mud, with some Salicornia; submergent Myriophyllum attracts coot. Waterfowl numbers peak in summer, when birds move to such permanent waterbodies from drying seasonal pans in the region. Nationally significant concentrations of Cape Shoveller were recorded in 1997 and 1998. Redknobbed Coot numbers peak in winter. Good numbers of Whitewinged Tern occurred in summer 1997. Variable numbers of Hartlaub's and Kelp Gulls visit the vlei to bathe in fresh water (K. Shaw). The river mouth should be open periodically but has remained closed for some time, largely due to a weir built by Lamberts Bay Municipality to ensure flooding on a more permanent basis (theoretically to attract birds and hence tourists). Even if the weir were removed, the system might not revert to its natural state because of water abstraction upstream and because a harbour wall extension has caused greater deposition of sand at the river mouth. Severe threats are posed by dam construction in the catchment; gravel pits in the river course, a nearby municipal dump, and alien plant infestation all have important effects.

SppCommon nameTaxonomic nameMinAvgMaxIBASubregional
IBA
RAMSAR
269Avocet, PiedRecurvirostra avosetta14.6417  
212Coot, Red-knobbedFulica cristata1160.24892   
48Cormorant, CapePhalacrocorax capensis44.004   
50Cormorant, ReedPhalacrocorax africanus13.0912   
47Cormorant, White-breastedPhalacrocorax carbo18.2332   
267Curlew, EurasianNumenius arquata11.001   
52Darter, AfricanAnhinga rufa24.336   
101Duck, FulvousDendrocygna bicolor1313.0013   
103Duck, MaccoaOxyura maccoa112.8854   
1016Duck, MallardAnas platyrhynchos11.001
96Duck, Yellow-billedAnas undulata216.4490   
59Egret, LittleEgretta garzetta11.894   
86Flamingo, GreaterPhoenicopterus ruber13175.21955 625760
87Flamingo, LesserPhoenicopterus minor138.84285   
89Goose, EgyptianAlopochen aegyptiacus121.84142   
88Goose, Spur-wingedPlectropterus gambensis16.4020   
5Grebe, Black-neckedPodiceps nigricollis132.46126 125 
4Grebe, Great CrestedPodiceps cristatus35.006   
6Grebe, LittleTachybaptus ruficollis129.07104   
263Greenshank, CommonTringa nebularia11.805   
288Gull, Grey-headedLarus cirrocephalus13.206   
289Gull, Hartlaub'sLarus hartlaubii163.19667250125300
287Gull, KelpLarus dominicanus1258.662163300150700
55Heron, Black-headedArdea melanocephala11.803   
54Heron, GreyArdea cinerea11.655   
81Ibis, African SacredThreskiornis aethiopicus111.0040   
83Ibis, GlossyPlegadis falcinellus1124.0033   
84Ibis, HadedaBostrychia hagedash11.803   
394Kingfisher, PiedCeryle rudis11.562
245Lapwing, BlacksmithVanellus armatus16.0321   
210Moorhen, CommonGallinula chloropus11.332   
231Oystercatcher, African BlackHaematopus moquini210.1718  
236Plover, Chestnut-bandedCharadrius pallidus11.332   
233Plover, Common RingedCharadrius hiaticula14.3319   
237Plover, Kittlitz'sCharadrius pecuarius110.2237   
238Plover, Three-bandedCharadrius tricollaris15.3230   
235Plover, White-frontedCharadrius marginatus17.7132   
102Pochard, SouthernNetta erythrophthalma17.3312   
256Ruff, RuffPhilomachus pugnax626.3365  
255Sanderling, SanderlingCalidris alba1010.0010   
258Sandpiper, CommonActitis hypoleucos11.001  
251Sandpiper, CurlewCalidris ferruginea19.2731  
262Sandpiper, MarshTringa stagnatilis38.0016   
264Sandpiper, WoodTringa glareola16.0015   
90Shelduck, South AfricanTadorna cana218.10131   
94Shoveler, CapeAnas smithii286.50549350175350
85Spoonbill, AfricanPlatalea alba11.001   
270Stilt, Black-wingedHimantopus himantopus222.48129  
253Stint, LittleCalidris minuta122.68181   
98Teal, CapeAnas capensis130.37326   
97Teal, Red-billedAnas erythrorhyncha247.0095   
290Tern, CaspianSterna caspia12.003   
291Tern, CommonSterna hirundo11535.005998 4000 
296Tern, SandwichSterna sandvicensis129.6782   
298Tern, SwiftSterna bergii189.31799500250200
10009Tern, UnidentifiedN/A N/A156156.00156
305Tern, WhiskeredChlidonias hybrida44.004   
304Tern, White-wingedChlidonias leucopterus72295.00518   
274Thick-knee, WaterBurhinus vermiculatus22.002   
10008Wader, UnidentifiedN/A N/A1962.33100
686Wagtail, CapeMotacilla capensis44.505
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Friday 22 September 2017 01:33
© Animal Demography Unit 2015
Department of Biological Sciences - University of Cape Town

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