Animalia > Chordata > Mammalia > Carnivora > Otariidae > Arctocephalus > Arctocephalus philippii

Arctocephalus philippii (Juan Fernández Fur Seal)

Wikipedia Abstract

The Juan Fernández fur seal (Arctocephalus philippii) breeds on the Juan Fernández Islands off the coast of Chile and is named after those islands where they were first found. It is the second-smallest of the otariid seal (the closely related Galápagos fur seal is smaller still). Discovered by navigator Juan Fernández in the 16th century, the seals became a target for sealers in the Maritime Fur Trade era. They were thought extinct in the mid-20th century until a population of 200 was found.
View Wikipedia Record: Arctocephalus philippii

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 4.98
EDGE Score: 2.48


Adult Weight [2]  209.44 lbs (95.00 kg)
Diet [3]  Carnivore (Invertebrates), Piscivore
Diet - Fish [3]  50 %
Diet - Invertibrates [3]  50 %
Forages - Marine [3]  100 %
Nocturnal [3]  Yes
Water Biome [1]  Coastal

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Parque Nacional Juan Fernandez National Park 11862 Juan Fernandez Islands, Chile      

Biodiversity Hotspots

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

Prey / Diet

Dosidicus gigas (jumbo squid)[4]
Onychoteuthis aequimanus[5]
Onychoteuthis banksii (common clubhook squid)[4]
Pseudocaranx dentex (underjaw kingfish)[5]
Scomberesox saurus (Atlantic saury)[5]
Todarodes filippovae (Antarctic flying squid)[4]
Trachurus murphyi (Southern jack mackerel)[5]
Tremoctopus violaceus (common blanket octopus)[5]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Arctocephalus galapagoensis (Galapagos Fur Seal)1
Arctocephalus townsendi (Guadalupe Fur Seal)2
Coryphaena hippurus (Mahi-mahi)2
Grampus griseus (Risso's Dolphin)1
Istiophorus platypterus (Atlantic sailfish)1
Kajikia audax (Stripey)1
Lagenodelphis hosei (Fraser's Dolphin)1
Lagenorhynchus obscurus (Dusky Dolphin)1
Lutjanus argentiventris (yellowtail snapper)1
Makaira mazara (black spearfish)1
Otaria flavescens (South American Sealion)1
Physeter macrocephalus (Sperm Whale)1
Prionace glauca (Tribon blou)2
Pterodroma neglecta (Kermadec Petrel)1
Spheniscus humboldti (Humboldt Penguin)1
Stenella attenuata (Pantropical Spotted Dolphin)1
Stenella coeruleoalba (Striped Dolphin)1
Thunnus alalunga (longfinned albacore)1
Xiphias gladius (Swordfish)1


Orcinus orca (Killer Whale)[5]

Range Map

East Pacific; South America;



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
2Felisa A. Smith, S. Kathleen Lyons, S. K. Morgan Ernest, Kate E. Jones, Dawn M. Kaufman, Tamar Dayan, Pablo A. Marquet, James H. Brown, and John P. Haskell. 2003. Body mass of late Quaternary mammals. Ecology 84:3403
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
4CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
5Jorrit 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.
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access