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Long-term trends, seasonal abundance and energy consumption of waterbirds at Rietvlei, Western Cape, South Africa, 1950-1997

B. Kalejta-Summers, Auteur ; D. G. Allan, Auteur ; T. D. Longrigg, Auteur

Dans Ostrich (72(1-2) MAR 2001)

Waterbird counts at Rietvlei, a freshwater wetland in the Western Cape, were analysed for four periods: 1950-56, 1961-67, 1980-85 and 1992-97. Ninety-eight species of waterbirds were recorded during these counts. Palaearctic migrants predominate[...]

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