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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004259naa a2200421 4500
001oai:DiVA.org:liu-144563
003SwePub
008180129s2018 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1445632 URI
0247 a https://doi.org/10.1242/jeb.1626932 DOI
040 a (SwePub)liu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Nespolo, Roberto F.u University of Austral Chile, Chile; University of Catolica Chile, Chile4 aut
2451 0a Aerobic power and flight capacity in birds: a phylogenetic test of the heart-size hypothesis
264 c 2017-01-01
264 1b COMPANY OF BIOLOGISTS LTD,c 2018
338 a electronic2 rdacarrier
500 a Funding Agencies|Fondo Nacional de Desarrollo Cientifico y Tecnologico [1130750, 11160271]; Linkopings Universitet; Svenska Forskningsradet Formas; Direccion General de Investigacion Cientifica y Tecnica [CGL2012-36345]; Comision Nacional de Investigacion Cientifica y Tecnologica
520 a Flight capacity is one of the most important innovations in animal evolution; it only evolved in insects, birds, mammals and the extinct pterodactyls. Given that powered flight represents a demanding aerobic activity, an efficient cardiovascular system is essential for the continuous delivery of oxygen to the pectoral muscles during flight. It is well known that the limiting step in the circulation is stroke volume (the volume of blood pumped from the ventricle to the body during each beat), which is determined by the size of the ventricle. Thus, the fresh mass of the heart represents a simple and repeatable anatomical measure of the aerobic power of an animal. Although several authors have compared heart masses across bird species, a phylogenetic comparative analysis is still lacking. By compiling heart sizes for 915 species and applying several statistical procedures controlling for body size and/or testing for adaptive trends in the dataset (e.g. model selection approaches, phylogenetic generalized linear models), we found that (residuals of) heart size is consistently associated with four categories of flight capacity. In general, our results indicate that species exhibiting continuous hovering flight (i.e. hummingbirds) have substantially larger hearts than other groups, species that use flapping flight and gliding show intermediate values, and that species categorized as poor flyers show the smallest values. Our study reveals that on a broad scale, routine flight modes seem to have shaped the energetic requirements of birds sufficiently to be anatomically detected at the comparative level.
650 7a NATURVETENSKAPx Biologix Zoologi0 (SwePub)106082 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Zoology0 (SwePub)106082 hsv//eng
653 a Comparative phylogenetics; Cardiovascular system; Stroke volume; Aves; Ornstein-Uhlenbeck models
7001 a Gonzalez-Lagos, Cesaru University of Catolica Chile, Chile; University of Bernardo OHiggins, Chile4 aut
7001 a Solano-Iguaran, Jaiber J.u University of Austral Chile, Chile4 aut
7001 a Elfwing, Magnusu Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska fakulteten4 aut0 (Swepub:liu)magel65
7001 a Garitano-Zavala, Alvarou University of Mayor San Andres, Bolivia4 aut
7001 a Manosa, Santiagou University of Barcelona, Spain4 aut
7001 a Carlos Alonso, Juanu CSIC, Spain4 aut
7001 a Altimiras, Jordiu Linköpings universitet,Biologi,Tekniska fakulteten4 aut0 (Swepub:liu)joral85
7102 a University of Austral Chile, Chile; University of Catolica Chile, Chileb University of Catolica Chile, Chile; University of Bernardo OHiggins, Chile4 org
7730 t Journal of Experimental Biologyd : COMPANY OF BIOLOGISTS LTDg 221:1q 221:1x 0022-0949x 1477-9145
8564 u https://liu.diva-portal.org/smash/get/diva2:1178285/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 u https://jeb.biologists.org/content/jexbio/221/1/jeb162693.full.pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-144563
8564 8u https://doi.org/10.1242/jeb.162693

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