Aves |
Charadriiformes |
Laridae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
. Subtropical
Northern Pacific, Northern Atlantic and the Arctic. Subtropical to polar.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?  range ? - ? cm
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).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Lepage, D. 2007 Avibase -the World Bird Database. http://www.bsc-eoc.org/avibase/avibase.jsp [accessed 09/07/2007]. (Ref. 7816)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Verktyg
Ytterligare information
Population dynamicsTillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundans
Life cycleReproduktion
Könsmognad
Fecundity
Lek
Eggs
Egg development
Larvae
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models