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dc.contributor.author Toledo, Néstor
dc.contributor.author Bargo, María Susana
dc.contributor.author Vizcaíno, Sergio Fabián
dc.contributor.author De Iuliis, G.
dc.contributor.author Pujos, François Roger Francis
dc.date.available 2018-08-21T19:05:58Z
dc.date.issued 2017-02
dc.identifier.citation Toledo, Néstor; Bargo, María Susana; Vizcaíno, Sergio Fabián; De Iuliis, G.; Pujos, François Roger Francis; Evolution of body size in anteaters and sloths (Xenarthra, Pilosa): Phylogeny, metabolism, diet and substrate preferences; Royal Society of Edinburgh; Earth and Environmental Science Transactions of the Royal Society of Edinburgh; 106; 4; 2-2017; 289-301
dc.identifier.issn 1755-6910
dc.identifier.uri http://hdl.handle.net/11336/56403
dc.description.abstract Pilosa include anteaters (Vermilingua) and sloths (Folivora). Modern tree sloths are represented by two genera, Bradypus and Choloepus (both around 4-6 kg), whereas the fossil record is very diverse, with approximately 90 genera ranging in age from the Oligocene to the early Holocene. Fossil sloths include four main clades, Megalonychidae, Megatheriidae, Nothrotheriidae, and Mylodontidae, ranging in size from tens of kilograms to several tons. Modern Vermilingua are represented by three genera, Cyclopes, Tamandua and Myrmecophaga, with a size range from 0.25 kg to about 30 kg, and their fossil record is scarce and fragmentary. The dependence of the body size on phylogenetic pattern of Pilosa is analysed here, according to current cladistic hypotheses. Orthonormal decomposition analysis and Abouheif C-mean were performed. Statistics were significantly different from the null-hypothesis, supporting the hypothesis that body size variation correlates with the phylogenetic pattern. Most of the correlation is concentrated within Vermilingua, and less within Mylodontidae, Megatheriidae, Nothrotheriidae and Megalonychidae. Influence of basal metabolic rate (BMR), dietary habits and substrate preference is discussed. In anteaters, specialised insectivory is proposed as the primary constraint on body size evolution. In the case of sloths, mylodontids, megatheriids and nothrotheriids show increasing body size through time; whereas megalonychids retain a wider diversity of sizes. Interplay between BMR and dietary habits appears to be the main factor in shaping evolution of sloth body size.
dc.format application/pdf
dc.language.iso eng
dc.publisher Royal Society of Edinburgh
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject BODY MASS
dc.subject FOLIVORA
dc.subject PALAEOBIOLOGY
dc.subject PHYLOGENETIC SIGNAL
dc.subject VERMILINGUA
dc.subject.classification Ciencias Medioambientales
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Evolution of body size in anteaters and sloths (Xenarthra, Pilosa): Phylogeny, metabolism, diet and substrate preferences
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-08-21T18:38:30Z
dc.journal.volume 106
dc.journal.number 4
dc.journal.pagination 289-301
dc.journal.pais Reino Unido
dc.journal.ciudad Edinburgo
dc.description.fil Fil: Toledo, Néstor. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Bargo, María Susana. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Vizcaíno, Sergio Fabián. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: De Iuliis, G.. University of Toronto; Canadá
dc.description.fil Fil: Pujos, François Roger Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
dc.journal.title Earth and Environmental Science Transactions of the Royal Society of Edinburgh
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/S1755691016000177
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/earth-and-environmental-science-transactions-of-royal-society-of-edinburgh/article/evolution-of-body-size-in-anteaters-and-sloths-xenarthra-pilosa-phylogeny-metabolism-diet-and-substrate-preferences/421A0CE4BDBEDA50117FC0AE9EED878C
dc.conicet.fuente unificacion


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)