Otaria byronia: Cárdenas-Alayza, S., Crespo, E. &amp; Oliveira, L.

Alayza, S. Cardenas; Crespo, Enrique A.; Oliveira, Larissa Rosa de

doi:10.2305/iucn.uk.2016-1.rlts.t41665a61948292.en

Cited by 9 publications

(4 citation statements)

References 59 publications

(98 reference statements)

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“…A shows a map of South and Central America illustrating the modern and historical southern (yellow) and northern (red) pinniped range. The modern ranges of Arctocephalus australis 102 , Arctocephalus galapagoensis 103 , Arctocephalus philippii 104 , Mirounga leonina 105 , Otaria byronia 106 and Zalophus wollebaeki 107 are overlaid for the southern hemisphere and Zalophus californianus 108 is shown for the northern hemisphere. Modern range data is from The International Union for Conservation of Nature's Red List of Threatened Species (http://www.iucnredlist.org/).…”

Section: Phylogenetic Analyses and Molecular Dating Of Ancient Mtbcmentioning

confidence: 99%

Geographically dispersed zoonotic tuberculosis in pre-contact South American human populations

et al. 2022

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Previous ancient DNA research has shown that Mycobacterium pinnipedii, which today causes tuberculosis (TB) primarily in pinnipeds, infected human populations living in the coastal areas of Peru prior to European colonization. Skeletal evidence indicates the presence of TB in several pre-colonial South and North American populations with minimal access to marine resources— a scenario incompatible with TB transmission directly from infected pinnipeds or their tissues. In this study, we investigate the causative agent of TB in ten pre-colonial, non-coastal individuals from South America. We reconstruct M. pinnipedii genomes (10- to 15-fold mean coverage) from three contemporaneous individuals from inland Peru and Colombia, demonstrating the widespread dissemination of M. pinnipedii beyond the coast, either through human-to-human and/or animal-mediated routes. Overall, our study suggests that TB transmission in the pre-colonial era Americas involved a more complex transmission pathway than simple pinniped-to-human transfer.

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Section: Phylogenetic Analyses and Molecular Dating Of Ancient Mtbcmentioning

confidence: 99%

Geographically dispersed zoonotic tuberculosis in pre-contact South American human populations

et al. 2022

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“…The International Union for the Conservation of Nature (IUCN) considers the South American sea lion as a species of Least Concern 20 at a global level, and the different populations on the Atlantic coast of South America have contrasting trends. The total abundance of this species, including on the Pacific and Atlantic coasts of South America, was estimated to be 445,000 individuals in 2012 20 . While most of the populations are increasing in abundance, the Uruguayan population has been decreasing at roughly 2% per year 21,22 .…”

mentioning

confidence: 99%

“…Another declining population of South American sea lion is found on the Falklands/Malvinas (51° 45′ S; 59° 00′ W), with 7500 animals found in 2003 23 and a minimum estimate of 4443 pups born at the in 2014 24 . For the coast of Argentina there is an increasing trend in the population numbers, including breeding and non-breeding colonies, with the total population estimated at about 123,200 individuals 20 .…”

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confidence: 99%

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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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When Physiology and Ecology Meet: The Interdependency Between Foraging Ecology and Reproduction in Otariids

Costa

Valenzuela‐Toro

2021

Ethology and Behavioral Ecology of Marine Mammals

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Otaria byronia: Cárdenas-Alayza, S., Crespo, E. & Oliveira, L.

Abstract: mtDNA sequences from 4 areas (Uruguay, Argentina, Chile, and Peru). However, the rookeries of southern South America need to be sampled and analyzed in order to establish the limit of gene flow between the two ocean basins (Oliveira pers. comm.).

Cited by 9 publications

References 59 publications

Geographically dispersed zoonotic tuberculosis in pre-contact South American human populations

Geographically dispersed zoonotic tuberculosis in pre-contact South American human populations

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

When Physiology and Ecology Meet: The Interdependency Between Foraging Ecology and Reproduction in Otariids

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