Aves |
Anseriformes |
Anatidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Others; brackish. Subtropical; 72°N - 47°S, 25°W - 179°E (Ref. 124582)
Indo-West Pacific, Eastern Atlantic and the Mediterranean Sea.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Non-breeding individuals inhabit swamps, lakes, reservoirs, coastal lagoons and estuaries. Feeds grass, on the roots, shoots, leaves, stems, seed heads and fruits of other herbaceous marsh vegetation, aquatic plants, and agricultural grain and potatoes (Ref. 107894).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hüppop, O., J. Dierschke, K.-M. Exo, E. Fredrich and R. Hill 2006 Bird Migration and Offshore Wind Turbines. In Ch. 9: 91-117. Köller, J., J. Köppel and W. Peters (eds.). Offshore Wind Energy, Research on Environmental Impacts. Springer: Germany. 371 pp. (Ref. 96348)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Tools
More information
Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycleReproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models