Le Canard Souchet (Anas clypeata L.) hivernant en Camargue : alimentation, comportement et dispersion nocturne

Jean-Yves Pirot, Didier Pont

Revue d Écologie (La Terre et La Vie) · 1987 · 11 citations · 11 references

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Abstract

Food habits, behaviour and nocturnal feeding areas of Shoveler wintering in the Camargue (Rhône delta, France) are documented from mid-summer to late winter. The diet is mainly composed of animal prey (81 % by weight), especially zooplankton. Food items are taken providing prey size is greater than 1 mm. The quality of ingested prey varies according to availability following artificial marsh flooding, rainfall, changes in water levels and the occurence of submerged vegetation. Cladocera (Daphnia magna) and insects (Sigara sp.) are predominant food items in late summer, Ostracoda and molluscs (Physa acuta)

References

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