Main Ref. | SAUP Database, 2006 |
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Remarks | Surface diving; dabbling; coastal. Winters along Pacific coast from Aleutian Islands to Mexico, across South of USA along Gulf coast, North to New England, Greater Antilles (Ref. 356). Feeds on small snails, insects and animal larvae in freshwater habitats, and clams, snails, amphipods and worms in marine ecosystems (Ref. 94965). Common diving depth of 1 to 5 m (Ref. 115854). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | |
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Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Feeding type | |
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Feeding type Ref. | |
Feeding habit | |
Feeding habit Ref. |
Estimation method | original sample | unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 3.38 | 0.47 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |