Κύρια Αναφ. | Lepage, D., 2007 |
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Σχόλια | Found on beach and shoreline (Ref. 116102). Large, cliff-nesting gulls that exhibit high site fidelity. In the Canadian Arctic, form small colonies on coastal cliffs, tens to hundreds of kilometers apart. Adults feed at sea, away from its colony; parents feed their chicks mainly fish ( Ref. 95169). |
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. |
Αναφ. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Τροφικός Τύπος | |
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Feeding type Ref. | |
Τροφική Συνήθεια | |
Feeding habit Ref. |
Estimation method | Αρχικό δείγμα | Μη αλιευμένος πληθυσμός | Σχόλιο | ||
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Troph | s.e. | Troph | s.e. | ||
Από σύσταση δίαιτας | |||||
Από ατομικά τροφικά αντικείμενα | 4.50 | 0.80 | Tentative trophic level derived from 1 + troph of a single food item | ||
Αναφ. |