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Scientific:
   Mirounga (elephant seals) 

Synonyms:
   Mirounga (elephant seals) 

Broader Terms:
   Phocidae (true seals) 
   elephant 

More Specific:
   Mirounga angustirostris (northern sea elephant) 
   Mirounga leonina (southern sea elephant) 
 
 
Latest Articles on elephant seals from uBioRSS
Are vibrissae viable sensory structures for prey capture in northern elepha... - The Anatomical Record: Advances in Integrative Ana...
High fatty acid oxidation capacity and phosphorylation control despite elev... - Journal of Experimental Biology recent issues


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171.  Early sexual dimorphism in the developing gut microbiome of northern elephant seals.LinkIT
Stoffel MA, Acevedo-Whitehouse K, Morales-Durán N, Grosser S, Chakarov N, Krüger O, Nichols HJ, Elorriaga-Verplancken FR, Hoffman JI
Molecular ecologyMol EcolEarly sexual dimorphism in the developing gut microbiome of northern elephant seals.2109-212210.1111/mec.15385The gut microbiome is an integral part of a species' ecology, but we know little about how host characteristics impact its development in wild populations. Here, we explored the role of such intrinsic factors in shaping the gut microbiome of northern elephant seals (Mirounga angustirostris) during a critical developmental window of 6 weeks after weaning, when the pups stay ashore without feeding. We found substantial sex differences in the early-life gut microbiome, even though males and females could not yet be distinguished morphologically. Sex and age both explained around 15% of the variation in gut microbial beta diversity, while microbial communities sampled from the same individual showed high levels of similarity across time, explaining another 40% of the variation. Only a small proportion of the variation in beta diversity was explained by health status, assessed by full blood counts, but clinically healthy individuals had a greater microbial alpha diversity than their clinically abnormal peers. Across the post-weaning period, the northern elephant seal gut microbiome was highly dynamic. We found evidence for several colonization and extinction events as well as a decline in Bacteroides and an increase in Prevotella, a pattern that has previously been associated with the transition from nursing to solid food. Lastly, we show that genetic relatedness was correlated with gut microbiome similarity in males but not females, again reflecting early sex differences. Our study represents a naturally diet-controlled and longitudinal investigation of how intrinsic factors shape the early gut microbiome in a species with extreme sex differences in morphology and life history.© 2020 The Authors. Molecular Ecology published by John Wiley & Sons Ltd.StoffelMartin AMA0000-0003-4030-3543Department of Animal Behaviour, Bielefeld University, Bielefeld, Germany.School of Natural Sciences and Psychology, Faculty of Science, Liverpool John Moores University, Liverpool, UK.Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK.Acevedo-WhitehouseKarinaK0000-0001-8954-8782Unit for Basic and Applied Microbiology, School of Natural Sciences, Autonomous University of Queretaro, Queretaro, México.The Marine Mammal Center, Sausalito, CA, USA.Morales-DuránNamiNUnit for Basic and Applied Microbiology, School of Natural Sciences, Autonomous University of Queretaro, Queretaro, México.GrosserStefanieS0000-0002-1524-7255Division of Evolutionary Biology, Faculty of Biology, LMU Munich, Planegg-Martinsried, Germany.ChakarovNaydenNDepartment of Animal Behaviour, Bielefeld University, Bielefeld, Germany.KrügerOliverODepartment of Animal Behaviour, Bielefeld University, Bielefeld, Germany.NicholsHazel JHJ0000-0002-4455-6065Department of Animal Behaviour, Bielefeld University, Bielefeld, Germany.Department of Biosciences, College of Science, Swansea University, Swansea, UK.Elorriaga-VerplanckenFernando RFRDepartamento de Pesquerías y Biología Marina, Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Instituto Politécnico Nacional, La Paz, Mexico.HoffmanJoseph IJI0000-0001-5895-8949Department of Animal Behaviour, Bielefeld University, Bielefeld, Germany.British Antarctic Survey, Cambridge, UK.engGENBANKPRJEB36555Dryad10.5061/dryad.jdfn2z37nJournal ArticleResearch Support, Non-U.S. Gov't20200305EnglandMol Ecol92144780962-1083IMMol Ecol. 2020 Jun;29(11):1941-194332279397AnimalsFemaleGastrointestinal MicrobiomeMaleSeals, EarlessmicrobiologySex Characteristicsgut microbiomehealthlife historypinnipedssex-differenceswild mammal20191210202002072020021020202166020216560202021660ppublish3206096110.1111/mec.15385REFERENCES, 2020</i></font><br><font 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