Southern elephant seals ( Mirounga leonina) along the Brazilian coast: review and additional records

Moura, Jailson Fulgêncio de; Dario, Bruna Pagliani S. di; Lima, Luciano Moreira; Siciliano, Salvatore

doi:10.1017/s1755267209991138

Cited by 11 publications

(11 citation statements)

References 15 publications

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“…1 , 3 , 73 – 75 , 86 – 88 ), including for the WRIL 40 . The individuals found at the WRIL, all of which were subadult males, were most probably from the colonies at Peninsula Valdés, on the central coast of Argentina, considering that these are the closest southern elephant seal colonies to the Brazilian coast 88 , 89 . These southern elephant seals reached the WRIL probably assisted by the cold Malvinas Current as for the other South American pinnipeds 1 , 66 .…”

Section: Discussionmentioning

confidence: 99%

The northernmost haulout site of South American sea lions and fur seals in the western South Atlantic

Procksch

Grandi

Ott

et al. 2020

Sci Rep

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We present estimates of the seasonal and spatial occupation by pinnipeds of the Wildlife Refuge of Ilha dos Lobos (WRIL), based on aerial photographic censuses. Twenty aerial photographic censuses were analysed between July 2010 and November 2018. To assess monthly differences in the numbers of pinnipeds in the WRIL we used a Generalized Linear Mixed Model. Spatial analysis was carried out using Kernel density analysis of the pinnipeds on a grid plotted along the WRIL. Subadult male South American sea lions (Otaria flavescens) were the most abundant pinniped in the WRIL. Potential females of this species were also recorded during half of the census. The maximum number of pinnipeds observed in the WRIL was 304 in September 2018, including an unexpected individual southern elephant seal (Mirounga leonina), and a high number of South American fur seal yearlings (Arctocephalus australis). However, there was no statistically significant difference in counts between months. In all months analysed, pinnipeds were most often found concentrated in the northern portion of the island, with the highest abundances reported in September. This study confirms the importance of the WRIL as a haulout site for pinnipeds in Brazil, recommends that land research and recreational activities occur in months when no pinnipeds are present, and encourages a regulated marine mammal-based tourism during winter and spring months.

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Section: Discussionmentioning

confidence: 99%

The northernmost haulout site of South American sea lions and fur seals in the western South Atlantic

Procksch

Grandi

Ott

et al. 2020

Sci Rep

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“…In particular, vagrant Southern elephant seals have been recorded on the coasts of Argentina, Uruguay, Brazil, Chile, Peru, Ecuador, Galapagos Islands, Panama, South Africa, Australia, New Zealand, Oman, and Mexico ( Fig. 2A ) ( Alava & Carvajal, 2005 ; Magalhães et al, 2003 ; Mayorga et al, 2017 ; Redwood & Felix, 2018 ; Acevedo et al, 2016 ; Johnson, 1990 ; Sepúlveda et al, 2007 ; De Moura et al, 2010 ; Pacheco, Silva & Riascos, 2014 ; Cárcamo et al, 2019 ; Sepúlveda et al, 2018 ; De Moura, Di Dario & Siciliano, 2011 ; Mertz & Bester, 2011 ; Mayorga et al, 2016 ; Shaughnessy, Kemper & Ling, 2012 ; Elorriaga-Verplancken et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Extreme dispersal or human-transport? The enigmatic case of an extralimital freshwater occurrence of a Southern elephant seal from Indiana

Valenzuela‐Toro

Zicos

Pyenson

2020

PeerJ

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Elephant seals (Mirounga spp.) are the largest living pinnipeds, and the spatial scales of their ecology, with dives over 1 km in depth and foraging trips over 10,000 km long, are unrivalled by their near relatives. Here we report the discovery of an incomplete Holocene age Southern elephant seal (M. leonina) rostrum from Indiana, USA. The surviving material are two casts of the original specimen, which was collected in a construction excavation close to the Wabash River near Lafayette, Indiana. The original specimen was mostly destroyed for radiometric dating analyses in the 1970s, which resulted in an age of 1,260 ± 90 years before the present. The existence of sediments in the original specimen suggests some type of post depositional fluvial transportation. The prevalent evidence suggests that this male Southern elephant seal crossed the equator and the Gulf of Mexico, and then entered the Mississippi River system, stranding far upriver in Indiana or adjacent areas, similar to other reported examples of lost marine mammals in freshwater systems. Based on potential cut marks, we cannot exclude human-mediated transportation or scavenging by Indigenous peoples as a contributing factor of this occurrence. The material reported here represents by far the northernmost occurrence of a Southern elephant seal in the Northern Hemisphere ever recorded. The unusual occurrence of a top marine predator >1,000 km from the closest marine effluent as a potential extreme case of dispersal emphasizes how marine invasions of freshwater systems have happened frequently through historical (and likely geological) time.

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“…Records of southern elephant seals (Mirounga leonina) as vagrants along the SE Brazilian coast date back the late 50's (Carvalho, 1975) and have been relatively common over the last decades (Moura et al 2010;2011;Mayorga et al, 2016). Most of these observations comprised by subadults or adults, some of them apparently healthy, resting on beaches, and resighted during several weeks at the same spot (Magalhães et al, 2003;Mayorga et al, 2017).…”

mentioning

confidence: 99%

Wrong Way Home: An Infant Southern Elephant Seal (Mirounga Leonina) Arrival on Southeastern Brazilian Beaches

Siciliano

Baldassin²,

Hauser‐Davis³

et al. 2020

Bol. Lab. Hidrobiol.

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É reportada a ocorrência recente de um infante de elefante-marinho (Mirounga leonina) na costa do estado do Rio de Janeiro com um intervalo aproximado de um mês entre as avistagens do mesmo indivíduo. A comparação das fotografias obtidas em ambos os registros permitiu a comparação e confirmação. Em adição, se discute a presença de infantes na costa brasileira, que totalizam oito casos, mas que não apontam uma sazonalidade marcada, mas uma tendência aos registros serem reportados em junho, seguido por outubro e novembro. Como o presente registro se deu em janeiro, pico do verão, fatores climáticos de larga escala podem estar atuando para deslocar alguns indivíduos muito ao longe das suas colônias.

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Southern elephant seals ( Mirounga leonina) along the Brazilian coast: review and additional records

Cited by 11 publications

References 15 publications

The northernmost haulout site of South American sea lions and fur seals in the western South Atlantic

The northernmost haulout site of South American sea lions and fur seals in the western South Atlantic

Extreme dispersal or human-transport? The enigmatic case of an extralimital freshwater occurrence of a Southern elephant seal from Indiana

Wrong Way Home: An Infant Southern Elephant Seal (Mirounga Leonina) Arrival on Southeastern Brazilian Beaches

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