liu.seSearch for publications in DiVA
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Aerobic performance in tinamous is limited by their small heart. A novel hypothesis in the evolution of avian flight
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biologi. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biologi. Linköpings universitet, Tekniska fakulteten.
University of Mayor San Andres, Bolivia.
Tinamou Chile SL, Chile.
Vise andre og tillknytning
2017 (engelsk)Inngår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, artikkel-id 15964Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Some biomechanical studies from fossil specimens suggest that sustained flapping flight of birds could have appeared in their Mesozoic ancestors. We challenge this idea because a suitable musculoskeletal anatomy is not the only requirement for sustained flapping flight. We propose the "heart to fly" hypothesis that states that sustained flapping flight in modern birds required an enlargement of the heart for the aerobic performance of the flight muscles and test it experimentally by studying tinamous, the living birds with the smallest hearts. The small ventricular size of tinamous reduces cardiac output without limiting perfusion pressures, but when challenged to fly, the heart is unable to support aerobic metabolism (quick exhaustion, larger lactates and post-exercise oxygen consumption and compromised thermoregulation). At the same time, cardiac growth shows a crocodilian-like pattern and is correlated with differential gene expression in MAPK kinases. We integrate this physiological evidence in a new evolutionary scenario in which the ground-up, short and not sustained flapping flight displayed by tinamous represents an intermediate step in the evolution of the aerobic sustained flapping flight of modern birds.

sted, utgiver, år, opplag, sider
NATURE PUBLISHING GROUP , 2017. Vol. 7, artikkel-id 15964
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-143636DOI: 10.1038/s41598-017-16297-2ISI: 000415983600052PubMedID: 29162941OAI: oai:DiVA.org:liu-143636DiVA, id: diva2:1165520
Tilgjengelig fra: 2017-12-13 Laget: 2017-12-13 Sist oppdatert: 2018-01-05

Open Access i DiVA

fulltext(4302 kB)70 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 4302 kBChecksum SHA-512
a0f7e0f9e5cc7a9596b9afb8f920a5eaba5fb4394c52970b234fc1b82cd52d40f3366ffc73cfae2e8b16587e5c4170e50d4c9bcbfc9b62e8f47d880e3fd7acd0
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstPubMed

Søk i DiVA

Av forfatter/redaktør
Altimiras, JordiLindgren, Isa
Av organisasjonen
I samme tidsskrift
Scientific Reports

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 70 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
pubmed
urn-nbn

Altmetric

doi
pubmed
urn-nbn
Totalt: 628 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf