Animalia > Chordata > Aves > Charadriiformes > Laridae > Larus > Larus delawarensis

Larus delawarensis (Ring-billed Gull)

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Wikipedia Abstract

The ring-billed gull (Larus delawarensis) is a medium-sized gull. The genus name is from Latin Larus which appears to have referred to a gull or other large seabird. The specific delawarensis refers to the Delaware River.
View Wikipedia Record: Larus delawarensis

EDGE Analysis

Uniqueness Scale: Similiar (0) 
0
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
3
 Unique & Vulnerable (100)
ED Score: 1.71181
EDGE Score: 0.997618
Learn more at EDGE of Existence programme

Attributes

Clutch Size [7]  3
Clutches / Year [4]  1
Global Population (2017 est.) [3]  1,700,000
Incubation [4]  21 days
Mating System [8]  Monogamy (mostly)
Maximum Longevity [4]  32 years
Migration [1]  Intracontinental
Water Biome [1]  Lakes and Ponds, Rivers and Streams, Coastal
Wing Span [9]  3.772 feet (1.15 m)
Adult Weight [2]  1.142 lbs (518 g)
Birth Weight [4]  36 grams
Female Weight [6]  1.038 lbs (471 g)
Male Weight [6]  1.248 lbs (566 g)
Weight Dimorphism [6]  20.2 %
Breeding Habitat [3]  Wetlands
Wintering Geography [3]  Widespread U.S./Mexico
Wintering Habitat [3]  Freshwater lakes and rivers, Beaches and estuaries, Agricultural
Diet [5]  Carnivore (Invertebrates), Carnivore (Vertebrates), Piscivore, Granivore
Diet - Endothermic [5]  10 %
Diet - Fish [5]  30 %
Diet - Invertibrates [5]  30 %
Diet - Scavenger [5]  20 %
Diet - Seeds [5]  10 %
Forages - Ground [5]  70 %
Forages - Water Surface [5]  10 %
Forages - Underwater [5]  20 %
Female Maturity [4]  2 years
Male Maturity [4]  2 years

Ecoregions

Protected Areas

+ Click for partial list (100)Full list (207)

Ecosystems

Important Bird Areas

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No
Caribbean Islands Anguilla, Antigua and Barbuda, Aruba, Bahamas, Barbados, Cayman Islands, Cuba, Dominica, Dominican Republic, Haiti, Grenada, Guadeloupe, Jamaica, Martinique, Montserrat, Netherlands Antilles, Puerto Rico, Saint Kitts and Nevis, Saint Lucia, Saint Vincent And The Grenadines, Trinidad and Tobago, Turks And Caicos Islands, Virgin Islands - British, Virgin Islands - U.S. No
Madrean Pine-Oak Woodlands Mexico, United States No
Mesoamerica Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama No

Prey / Diet

Prey / Diet Overlap

Predators

Consumers

Range Map

External References

NatureServe Explorer

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
♦ 6Ryder, JP 1993. Ring-billed Gull (Larus delawarensis). In A. Poole, P. Stettenheim, and F. Gill (Eds.). The Birds of North America, No. 33. The Academy of Natural Sciences, Philadelphia, PA, and The American Ornithologists' Union, Washington, DC. 28 pp
♦ 7Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
♦ 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
♦ 9DETERMINATION OF BODY DENSITY FOR TWELVE BIRD SPECIES, DAVID M. HAMERSHOCK, THOMAS W. SEAMANS, GLEN E. BERNHARDT, WRIGHT LAB WRIGHT-PATTERSON AFB OH (1993)
♦ 10Anurans as prey: an exploratory analysis and size relationships between predators and their prey, L. F. Toledo, R. S. Ribeiro & C. F. B. Haddad, Journal of Zoology 271 (2007) 170–177
♦ 11Study of Northern Virginia Ecology
♦ 12Jorrit 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.
♦ 13Cirtwill, Alyssa R.; Eklöf, Anna (2018), Data from: Feeding environment and other traits shape species' roles in marine food webs, Dataset, https://doi.org/10.5061/dryad.1mv20r6
♦ 14Myotis vivesi, Brad R. Blood and Mary K. Clark, MAMMALIAN SPECIES No. 588, pp. 1-5 (1998)
♦ 15Gibson, 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 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0