Animalia > Chordata > Aves > Procellariiformes > Procellariidae > Pterodroma > Pterodroma incerta

Pterodroma incerta (Atlantic Petrel)

Synonyms: Procellaria incerta

Wikipedia Abstract

The Atlantic petrel (Pterodroma incerta) is a gadfly petrel endemic to the South Atlantic Ocean. It breeds in enormous colonies on Tristan da Cunha and Gough Island, and ranges at sea from Brazil to Namibia, with most records at sea being to the west of the breeding islands, and along the subtropical convergence. The species feeds mostly on squid, which comprises 87% of its diet in some studies; it will also feed on lanternfishes (Myctophidae) as they ascend to the surface at night, as well as on crustaceans.
View Wikipedia Record: Pterodroma incerta

Endangered Species

Status: Endangered
View IUCN Record: Pterodroma incerta

EDGE Analysis

Uniqueness Scale: Similiar (0) 
2
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
50
 Unique & Vulnerable (100)
ED Score: 5.72091
EDGE Score: 3.98466
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  1.146 lbs (520 g)
Diet [2]  Carnivore (Invertebrates), Piscivore
Diet - Fish [2]  20 %
Diet - Invertibrates [2]  80 %
Forages - Water Surface [2]  100 %
Clutch Size [4]  1
Clutches / Year [3]  1
Egg Length [3]  2.717 inches (69 mm)
Egg Width [3]  1.968 inches (50 mm)
Fledging [3]  4 months 18 days
Incubation [4]  55 days
Migration [5]  Interoceanic
Wing Span [4]  3.411 feet (1.04 m)

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Scotia Sea Islands tundra United Kingdom Antarctic Tundra    
Tristan Da Cunha-Gough Islands shrub and grasslands United Kingdom Afrotropic Temperate Grasslands, Savannas, and Shrublands    

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Cape Peninsula National Park II 70141 Western Cape, South Africa
West Coast National Park II 59916 Western Cape, South Africa

Important Bird Areas

Name Location  IBA Criteria   Website   Climate   Land Use 
Gough Island St Helena (to UK) A1, A2, A4i, A4ii, A4iii  
Tristan da Cunha St Helena (to UK) A1, A2, A4i, A4ii, A4iii  

Alliance for Zero Extinction (AZE) Sites

Name  Location   Map   Climate   Land Use 
Gough Island St Helena (to UK)  

Prey / Diet

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Aphrodroma brevirostris (Kerguelen Petrel)1
Diomedea epomophora (Royal Albatross)1
Pterodroma macroptera (Great-winged Petrel)1

Range Map

External References

Citations

Attributes / relations provided by
♦ 1Abrams, RW and LG Underhill. 1986. Relationships of pelagic seabirds with the Southern Ocean environment assessed with correspondence analysis. Auk 103:221–225.
♦ 2Hamish 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
♦ 3Nathan 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
♦ 4del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 5Myers, 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
♦ 6DIET OF THE ATLANTIC PETREL PTERODROMA INCERTA DURING BREEDING AT SOUTH ATLANTIC GOUGH ISLAND, N.T.W. KLAGES & J. COOPER, Marine Ornithology 25: 13–16 (1997)
♦ 7Jorrit 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.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
AZE sites provided by Alliance for Zero Extinction (2010). 2010 AZE Update.
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