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Ecology of Sula dactylatra
 
Main Ref. SAUP Database, 2006
Remarks Occupies the continental shelf, <100 km offshore (Ref. 356). Colonial breeder on marine islands. Moderately gregarious at sea. Does not typically trail ships. Prefers to fish in deep waters (Ref. 91362). Exhibits plunge-diving (Ref. 356, 91362).

Aquatic zones / Water bodies

Marine - Neritic Marine - Oceanic Brackishwater Freshwater
Marine zones / Brackish and freshwater bodies
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Sula dactylatra may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref. Harrison, P., 1987
Associations colony-forming/symphorism;
Associated with
Association remarks Colonial breeder.
Parasitism

feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Karpouzi, V.S., 2005
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Karpouzi, V.S., 2005

Trophic Level(s)

Estimation method original sample unfished population Remark
Troph s.e. Troph s.e.
From diet composition
From individual food items 4.31 0.85 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.
Ref. [ e.g. 3742]
Glossary [ e.g. cnidaria]
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