Animalia > Chordata > Aves > Charadriiformes > Laridae > Larus > Larus marinus
 

Larus marinus (Great Black-backed Gull)

Language: French

Wikipedia Abstract

The great black-backed gull (Larus marinus), also known as the greater black-backed gull or, informally, as the black-back, is the largest member of the gull family. It breeds on the European and North American coasts and islands of the North Atlantic and is fairly sedentary, though some black-backs move farther south or inland to large lakes or reservoirs. The adult great black-backed gull has a white head, neck and underparts, dark grey wings and back, pink legs and yellow bill.
View Wikipedia Record: Larus marinus

EDGE Analysis

Uniqueness Scale: Similiar (0) 
0
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
4
 Unique & Vulnerable (100)
ED Score: 1.20809
EDGE Score: 0.79213

Attributes

Adult Weight [1]  3.655 lbs (1.658 kg)
Birth Weight [3]  85 grams
Female Weight [1]  3.28 lbs (1.488 kg)
Male Weight [1]  4.032 lbs (1.829 kg)
Weight Dimorphism [1]  22.9 %
Breeding Habitat [2]  Beaches and estuaries, Wetlands
Wintering Geography [2]  Eastern U.S./Canada
Wintering Habitat [2]  Beaches and estuaries, Coastal marine, Freshwater lakes and rivers
Diet [4]  Carnivore (Invertebrates), Carnivore (Vertebrates), Frugivore, Granivore
Diet - Endothermic [4]  20 %
Diet - Fruit [4]  20 %
Diet - Invertibrates [4]  20 %
Diet - Scavenger [4]  20 %
Diet - Seeds [4]  20 %
Forages - Ground [4]  80 %
Forages - Water Surface [4]  20 %
Female Maturity [3]  5 years
Male Maturity [3]  5 years
Clutch Size [3]  3
Clutches / Year [5]  1
Global Population (2017 est.) [2]  600,000
Incubation [3]  27 days
Maximum Longevity [3]  27 years
Migration [6]  Intracontinental
Speed [7]  30.646 MPH (13.7 m/s)
Wing Span [7]  5.478 feet (1.67 m)

Ecoregions

Protected Areas

+ Click for partial list (100)Full list (236)

Important Bird Areas

Biodiversity Hotspots

Name Location Endemic Species Website
Caucasus Armenia, Azerbaijan, Georgia, Iran, Russia, Turkey No
Mediterranean Basin Algeria, Egypt, France, Greece, Israel, Jordan, Lebanon, Libya, Portugal, Spain, Syria, Tunisia, Turkey No

Prey / Diet

Prey / Diet Overlap

Predators

Cryptocotyle lingua[8]
Haliaeetus leucocephalus (Bald Eagle)[8]

Consumers

Institutions (Zoos, etc.)

    Maps
Institution Infraspecies / Breed 
Central Park Zoo
Miejski Ogrod Zoologiczny Warsaw
Turtle Back Zoo

Range Map

Distribution

Caribbean; North America;

External References

Photos

Citations

Attributes / relations provided by
1Belopol'skii L.O. 1957. Ecology of sea colony birds of the Barents Sea. Izdat. Akad. Nauk SSSR. Moscow-Leningrad.
2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
3de 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
4Hamish 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
5British Trust for Ornithology
6Myers, 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
7Alerstam T, Rosén M, Bäckman J, Ericson PGP, Hellgren O (2007) Flight Speeds among Bird Species: Allometric and Phylogenetic Effects. PLoS Biol 5(8): e197. doi:10.1371/journal.pbio.0050197
8Jorrit 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.
9Feeding Spectrum and Trophic Relationships of Short-finned Squid (Illex illecebrosus) in the Northwest Atlantic, Yu. M. Froerman, NAFO Sci. Coun. Studies, 7: 67-75 (1984)
10The role of capelin (Mallotus villosus) in the foodweb of the Barents Sea, A. V. Dolgov, ICES Journal of Marine Science, 59: 1034–1045. 2002
11Changes in the diet of Great Black-backed Gulls Larus marinus on Skomer Island 1958- 1992, Jim Poole, SEABIRD 17; 50-55
12Foods and predators of the green sea urchin Strongylocentrotus droebachiensis in Newfoundland waters, J. H. HIMMELMAN and D. H. STEELE, Marine Biology 9, 315-322 (1971)
13Gibson, 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
Protected Areas provided by Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Ramsar Sites Information Service
Natura 2000, UK data: © Crown copyright and database right [2010] All rights reserved. Ordnance Survey Licence number 100017955
GBIF Global Biodiversity Information Facility
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License