Main Ref. | SAUP Database, 2006 |
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Remarks | Found in the high Arctic, with a close affinity with ice (Ref. 356). Nests in tundras; usual clutch size, 2 eggs (Ref. 97149). A coastal kleptoparasite. Exhibits dipping and plunging behavior (Ref. 356). Known to prey on Brown Lemming (Ref. 97149). |
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 | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Custer, T.W. and F.A. Pitelka, 1987 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Custer, T.W. and F.A. Pitelka, 1987 |
Estimation method | original sample | unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 5.00 | 0.50 | Tentative trophic level derived from 1 + troph of a single food item | ||
Ref. |