Larus occidentalis   Audubon, 1839

Western gull
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Aves | Charadriiformes | Laridae

Environment: milieu / climate zone / depth range / distribution range Ecology

Others.  Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Eastern Pacific and Western Atlantic. Subtropical to temperate.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 68.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 1.0 kg (Ref. 356)

Short description Morphology

Culmen: 5.56 cm; tarsus: 7.197 cm; wing: 41.2 cm.

Biology     Glossary (e.g. epibenthic)

Total Length: 61 to 68 cm; Wingspan: 132 to 142 cm (Ref. 8812).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference References | Coordinator | Collaborators

Schreiber, R.W. 1970. (Ref. 80153)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Least Concern (LC) ; Date assessed: 08 August 2018

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Trophic Ecology
Food items
Diet
Food consumption
Ration
Predators
Ecology
Ecology
Home ranges
Population dynamics
Growth
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
Human Related
Aquaculture profile
Stamps, Coins Misc.
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Taxonomy
Common names
Synonyms
Morphology
Pictures
References
References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 5.4 - 18.5, mean 8.3 (based on 112 cells).
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=16.74-39.08).
Vulnerability (Ref. 71543): Moderate to high vulnerability (47 of 100).
Price category (Ref. 80766): Unknown.

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