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Ecology of Fratercula cirrhata
 
Main Ref. SAUP Database, 2006
Remarks Plunge diver; continental shelf; <100 km (Ref. 356). Semi-precocial mode of development. Ground nesting species; in burrows. When spotting a threat, adults give out alarm calls to warn chicks who respond by moving to a nearby hiding place. Displays "group flight" behavior. Vulnerable to oil pollution as a piscivore; saw 50% decline in population from 1989 in Prince William Sound after the Exxon Valdez oil spill (Ref. 87784). Captures and eats prey underwater except food carried to chicks. Tends to forage more offshore in shelf and shelf-edge waters than coastally (Ref. 62201).

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 Fratercula cirrhata may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref. Schreiber, E.A. and J. Burger, 2001
Associations colony-forming/symphorism;
Associated with
Association remarks Displays "group flight" behavior (ref. 87784).
Parasitism

feeding

Feeding type
Feeding type Ref.
Feeding habit
Feeding habit Ref.

Trophic Level(s)

Estimation method original sample unfished population Remark
Troph s.e. Troph s.e.
From diet composition
From individual food items 4.30 0.96 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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