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dc.contributor.author
Giannini, Norberto Pedro
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dc.contributor.author
Gunnell, Gregg F.
dc.contributor.author
Habersetzer, Jorg
dc.contributor.author
Simmons, Nancy B.
dc.contributor.other
Gunnell, Gregg F.
dc.contributor.other
Simmons, Nancy B.
dc.date.available
2022-07-29T14:15:56Z
dc.date.issued
2012
dc.identifier.citation
Giannini, Norberto Pedro; Gunnell, Gregg F.; Habersetzer, Jorg; Simmons, Nancy B.; Early evolution of body size in bats; Cambridge University Press; 2012; 530-555
dc.identifier.isbn
978-0521745260
dc.identifier.uri
http://hdl.handle.net/11336/163511
dc.description.abstract
Size is the single most important factor affecting physiology, locomotion, ecology, and behavior of mammals. Understanding evolution of size is especially important in groups like bats which exhibit many unique or energetically expensive behaviors (e.g., powered flight, echolocation, torpor and hibernation, long-distance migration). In addition, bats have the most diverse array of dietary habits of any mammalian Order. Most bat species are small: the central tendency in size in extant bats, as estimated by the median value, is around 14 g. However, bat size spans three orders of magnitude, with a few species exceeding one kilogram. Variation is not evenly distributed across groups, and there is no specific hypothesis accounting for size variation in bats. In search of evolutionary patterns, we first estimated mass in key Eocene fossils via allometric relationships. Least midshaft diameter of limb bones yielded accurate models of variation in size (body mass) in extant bats at the interspecific level (error <2%), thus providing a solid basis for size estimation in fossils. We then mapped size on current bat phylogenies including Eocene fossils. On these phylogenies, mass decreased along stem chiropteran nodes until a range of 14 -17 g was achieved in the crown clade including Palaeochiropteryx and extant bats (or microbats, depending on the topology). Remarkably, this estimated range includes the median of size for extant bats and was conserved since the Early Eocene along the backbone of all major bat clades with minor variations, strongly suggesting that an efficient combination of factors, including energy expenditure and cost of transport, was achieved at the base of the crown clade and was maintained through the evolutionary history of bats. Departures from this range were reconstructed as nested within bat families and were associated with major changes in diet, particularly carnivory and frugivory.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BATS
dc.subject
BODY MASS
dc.subject
EVOLUTION
dc.subject.classification
Biología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Early evolution of body size in bats
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/bookPart
dc.type
info:ar-repo/semantics/parte de libro
dc.date.updated
2022-07-04T20:08:28Z
dc.journal.pagination
530-555
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Cambridge
dc.description.fil
Fil: Giannini, Norberto Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina
dc.description.fil
Fil: Gunnell, Gregg F.. University of Duke; Estados Unidos
dc.description.fil
Fil: Habersetzer, Jorg. Senckenberg Research Institute; Alemania
dc.description.fil
Fil: Simmons, Nancy B.. American Museum of Natural History; Estados Unidos
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/ar/academic/subjects/life-sciences/evolutionary-biology/evolutionary-history-bats-fossils-molecules-and-morphology?format=PB
dc.conicet.paginas
584
dc.source.titulo
Evolutionary History of Bats: Fossils, Molecules, and Morphology
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