Animalia > Chordata > Aves > Procellariiformes > Procellariidae > Pterodroma > Pterodroma externa

Pterodroma externa (Juan Fernandez Petrel)

Synonyms: Pterodroma externa externa
Language: French; Spanish

Wikipedia Abstract

The Juan Fernández petrel (Pterodroma externa) is a species of seabird in the Procellariidae family. It nests on a single island off the coast of Chile. It was previously classified as a subspecies of the white-necked petrel (Pterodroma cervicalis), which is found in tropical waters of the Pacific and Indian Oceans.
View Wikipedia Record: Pterodroma externa

Endangered Species

Status: Vulnerable
View IUCN Record: Pterodroma externa

EDGE Analysis

Uniqueness Scale: Similiar (0) 
3
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
41
 Unique & Vulnerable (100)
ED Score: 6.76278
EDGE Score: 3.43564
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  428 grams
Breeding Habitat [2]  Oceanic islands, Pelagic
Wintering Geography [2]  Pacific Ocean
Wintering Habitat [2]  Pelagic
Diet [3]  Carnivore (Invertebrates), Piscivore
Diet - Fish [3]  50 %
Diet - Invertibrates [3]  50 %
Forages - Water Surface [3]  100 %
Clutch Size [4]  1
Clutches / Year [5]  1
Global Population (2017 est.) [2]  2,000,000
Migration [6]  Intraoceanic
Wing Span [4]  3.411 feet (1.04 m)

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Clipperton Island shrub and grasslands France Neotropic Tropical and Subtropical Grasslands, Savannas, and Shrublands  
Juan Fernández Islands temperate forests Chile Neotropic Temperate Broadleaf and Mixed Forests    

Biodiversity Hotspots

Name Location Endemic Species Website
Chilean Winter Rainfall-Valdivian Forests Chile Yes

Prey / Diet

Moroteuthopsis longimana (Giant Warty Squid)[7]

Range Map

External References

Citations

Attributes / relations provided by
♦ 1Morphological Differences Relative to Ecological Segregation in Petrels (Family: Procellariidae) of the Southern Ocean and Tropical Pacific. Larry B. Spear and David G. Ainley. The Auk Vol. 115, No. 4 (Oct., 1998), pp. 1017-1033
♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 3Hamish 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
♦ 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.
♦ 5Nathan 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
♦ 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
♦ 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
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