Animalia > Chordata > Aves > Charadriiformes > Laridae > Larus > Larus glaucescens
 

Larus glaucescens (Glaucous-winged Gull)

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Wikipedia Abstract

The glaucous-winged gull (Larus glaucescens) is a large, white-headed gull. The genus name is from Latin Larus which appears to have referred to a gull or other large seabird. The specific glaucescens is New Latin for "glaucous" from the Ancient Greek, glaukos. English "Glaucous" denotes a bluish-green or grey colour. The glaucous-winged gull nests in the summer, and each pair produces two or three chicks which fledge at six weeks.
View Wikipedia Record: Larus glaucescens

EDGE Analysis

Uniqueness Scale: Similiar (0) 
0
 Unique (100)
Uniqueness & Vulnerability Scale: Not determined do to incomplete vulnerability data.
ED Score: 1.03455

Attributes

Clutch Size [4]  3
Clutches / Year [7]  1
Egg Length [2]  2.795 inches (71 mm)
Egg Width [2]  1.929 inches (49 mm)
Fledging [2]  42 days
Global Population (2017 est.) [3]  380,000
Incubation [4]  27 days
Mating System [8]  Monogamy
Maximum Longevity [4]  32 years
Water Biome [1]  Coastal
Wing Span [7]  4.395 feet (1.34 m)
Adult Weight [2]  2.344 lbs (1.063 kg)
Birth Weight [4]  71 grams
Female Weight [6]  2.086 lbs (946 g)
Male Weight [6]  2.601 lbs (1.18 kg)
Weight Dimorphism [6]  24.7 %
Breeding Habitat [3]  Coastal cliffs and islands, Coastal marine
Wintering Geography [3]  Pacific Coast
Wintering Habitat [3]  Beaches and estuaries, Coastal marine
Diet [5]  Carnivore (Invertebrates), Carnivore (Vertebrates), Piscivore
Diet - Endothermic [5]  20 %
Diet - Fish [5]  30 %
Diet - Invertibrates [5]  30 %
Diet - Scavenger [5]  20 %
Forages - Ground [5]  30 %
Forages - Water Surface [5]  40 %
Forages - Underwater [5]  30 %
Female Maturity [2]  5 years 6 months
Male Maturity [2]  5 years 6 months

Ecoregions

Protected Areas

Ecosystems

Important Bird Areas

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No

Prey / Diet

Prey / Diet Overlap

Predators

Bubo scandiacus (Snowy Owl)[10]
Corvus corax (Northern Raven)[10]
Falco peregrinus (Peregrine Falcon)[10]
Haliaeetus leucocephalus (Bald Eagle)[10]
Homo sapiens (man)[10]

Consumers

Range Map

Distribution

North America; Oceania;

External References

Photos

Citations

Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at animaldiversity.org
2Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
3Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
4de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
5Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
6Verbeek, NAM 1993. Glaucous-winged gull (Larus glaucescens). In The Birds of North America, No. 59 (A. Poole and F. Gill, Eds.). Academy of Natural Sciences, Philadelphia, and American Ornithologists' Union, Washington DC
7del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
8Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
9Wootton, J. Timothy. "Estimates and tests of per capita interaction strength: diet, abundance, and impact of intertidally foraging birds." Ecological Monographs 67.1 (1997): 45+. Academic OneFile. Web. 23 July 2010
10Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
11CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
12Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Forage species in predator diets: synthesis of data from the California Current. Ecological Informatics 29(1): 45-56. Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Data from: Forage species in predator diets: synthesis of data from the California Current. Dryad Digital Repository.
13Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979
14Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License