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Larus heermanni, Heermann's gull

Common name (e.g. turtle)

Genus + Species (e.g. Caretta caretta)

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Larus heermanni   Cassin, 1852

Heermann's 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.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 53.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 640.00 g (Ref. 356)

Short description Morphology

Culmen: 4.37 cm; wing: 34.7 cm.

Biology     Glossary (e.g. epibenthic)

Total Length: 46 to 53 cm; Wingspan: 117 to 124 cm (Ref. 8812). Coastal; <50km (Ref. 356). Use various behavioral methods to thermoregulate such as neck extension, panting and gaping, elevation of feathers and/or scapulars, feather fluffing, beak tucking under scapular, wing drooping, tail tilting, etc. Egg neglect, while parents forage, was observed; eggs left at night run the risk of chilling causing the embryo's heart to stop beating (Ref. 87784). Displays surface-plunging and dipping (Ref. 356).

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

Main reference References | Coordinator | Collaborators

SAUP Database. 2006. (Ref. 356)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Near Threatened (NT) (D2); Date assessed: 28 August 2020

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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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): 9.1 - 12.1, mean 10.3 (based on 156 cells).
Vulnerability (Ref. 71543): Moderate vulnerability (41 of 100).
Price category (Ref. 80766): Unknown.

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