|Most recent IBA monitoring assessment|
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Situated 15 km north-east of Delareyville, these two pans, along with Klippan, are in a closed basin at 1,350 m. Barberspan is a large (6 × 4 km), permanent, shallow (max. depth 11 m), alkaline lake, which has its own small catchment of 30 km². It is the largest of a series of pans in the fossil bed of the Paleo-Harts river. The lake is fed by the Harts river and is situated in open flat grassland that can be described as a great undulating plain, much of which is cultivated for summer crops, such as maize, sunflowers and groundnuts. The nearby Leeupan is connected to Barberspan via a narrow channel. Leeupan is saline, shallow, and is subject to considerable fluctuations in water-level, drying up in most winters. This often results in conditions that are favourable for some wetland species but adverse for others.
See Box for key species. More than 320 bird species have been recorded at the site and in the surrounding nature reserve. Barberspan is particularly important as a drought refuge and a moulting site for waterbirds, which congregate in large numbers (exceeding 20,000 individuals) during the dry season (April–October) when all the small wetlands in the surrounding districts have dried up completely. All but one of South Africa’s indigenous duck species have been recorded here. The waterbirds disperse to breed in sheltered temporary pans and vleis once the summer rains arrive. Breeding species include Charadrius pallidus and Sterna caspia, which occur sporadically at low densities. Fulica cristata almost
Non-bird biodiversity: None known to BirdLife International.
BirdLife International (2020) Important Bird Areas factsheet: Barberspan and Leeupan. Downloaded from http://www.birdlife.org on 28/11/2020.