Spatula hottentota

Taille et tendance de la population
Population Intervalle de taille Qualité de la taille Estimation de la taille de la population Référence de la taille Notes de la taille
Intervalle de tendance Qualité de la tendance Tendance Référence de la tendance Notes de la tendance
Lake Chad basin2010Expert opinion1-1,000Trolliet, B. in litt 2011
1982-1992PoorDEC Scott, D.A. and Rose, P.M. 1996. Atlas of Anatidae [more]
Eastern Africa (south to N Zambia)2001Best guess25,000-100,000 Dodman, T. 2002. Waterbird Population Estimates in [more]
1986-1996PoorSTA Scott, D.A. and Rose, P.M. 1996. Atlas of Anatidae [more]
Southern Africa (north to S Zambia)2001Best guess25,000-100,000 Dodman, T. 2002. Waterbird Population Estimates in [more]
1986-1996PoorSTA Scott, D.A. and Rose, P.M. 1996. Atlas of Anatidae [more]
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