Presence of Guadalupe Fur Seals (Arctocephalus philippii townsendi) at Isla Roca Partida, Revillagigedo Archipelago, México

Population assessment and feeding ecology on a new colony of the Guadalupe fur seal (Arctocephalus philippii townsendi) on Farallón de San Ignacio Island, Gulf of California, Mexico

“…These include Vancouver Island (Hondro, 2016), the western coast of the US (D'Agnese et al, 2020; Hanni et al, 1997; Melin & DeLong, 1999), and the Gulf of California (Amador‐Capitanachi, 2018; Aurioles‐Gamboa et al, 1993; Elorriaga‐Verplancken et al, 2016a, 2021; Gallo‐Reynoso et al, 2010). Moreover, they have been found in the Revillagigedo Archipelago (Hoyos‐Padilla et al, 2021) and along the Pacific coast of Mexico, on beaches of Colima, Guerrero, and Oaxaca States (Aurioles‐Gamboa & Hernández‐Camacho, 1999; Ortega‐Ortiz et al, 2019; Villegas‐Zurita et al, 2015), including extralimital records in the eastern tropical Pacific in El Salvador and the Galapagos Archipelago (Ibarra‐Portillo et al 2016; Páez‐Rosas et al, 2020).…”

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Guadalupe fur seal (Arctocephalus philippii townsendi) distribution originally encompassed the Pacific Northwest of the United States and Mexico, from the Farallon Islands in California to the Revillagigedo Archipelago (Gallo-Reynoso, 1994;Hoyos-Padilla et al, 2021). They were intensively hunted for their double-layered coat throughout the 18th and 19th centuries, driving them to commercial extinction and producing a reduction in their genetic variability and distribution (Bernardi et al, 1998;Hanna, 1922;Weber et al, 2004).

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