Main Ref. | SAUP Database, 2006 |
---|---|
Remarks | Pelagic (Ref. 122680). Found offshore and in tropical oceanic islands (Ref. 356). Colonial breeder, typically in trees and bushes. Gregarious; trails ships (Ref. 91362). Exhibits dipping behavior and piracy (Ref. 356). Adept aerial flier, obtains some of its food by harassing other seabirds until they regurgitate their prey. Feeds over schools of predatory fishes (Ref. 122680). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
---|---|---|---|---|
Marine zones / Brackish and freshwater bodies |
|
|
|
|
Substrate | |
---|---|
Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | Harrison, P., 1987 |
---|---|
Associations | colony-forming/symphorism; |
Associated with | |
Association remarks | Colonial breeder. |
Parasitism |
Feeding type | mainly animals (troph. 2.8 and up) |
---|---|
Feeding type Ref. | Karpouzi, V.S., 2005 |
Feeding habit | variable |
Feeding habit Ref. | SAUP Database, 2006 |
Estimation method | original sample | unfished population | Remark | ||
---|---|---|---|---|---|
Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 4.37 | 0.73 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |