liu.seSök publikationer i DiVA
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Allometric scaling of metabolic rate and cardiorespiratory variables in aquatic and terrestrial mammals
Duke Univ, NC USA.
Calvin Univ, MI USA.
Duke Univ, NC USA.
Duke Univ, NC USA.
Visa övriga samt affilieringar
2023 (Engelska)Ingår i: Physiological Reports, E-ISSN 2051-817X, Vol. 11, nr 11, artikel-id e15698Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

While basal metabolic rate (BMR) scales proportionally with body mass (M-b), it remains unclear whether the relationship differs between mammals from aquatic and terrestrial habitats. We hypothesized that differences in BMR allometry would be reflected in similar differences in scaling of O-2 delivery pathways through the cardiorespiratory system. We performed a comparative analysis of BMR across 63 mammalian species (20 aquatic, 43 terrestrial) with a M-b range from 10 kg to 5318 kg. Our results revealed elevated BMRs in small (>10 kg and <100 kg) aquatic mammals compared to small terrestrial mammals. The results demonstrated that minute ventilation, that is, tidal volume (V-T)center dot breathing frequency (f(R)), as well as cardiac output, that is, stroke volume center dot heart rate, do not differ between the two habitats. We found that the "aquatic breathing strategy", characterized by higher V-T and lower f(R) resulting in a more effective gas exchange, and by elevated blood hemoglobin concentrations resulting in a higher volume of O-2 for the same volume of blood, supported elevated metabolic requirements in aquatic mammals. The results from this study provide a possible explanation of how differences in gas exchange may serve energy demands in aquatic versus terrestrial mammals.

Ort, förlag, år, upplaga, sidor
WILEY , 2023. Vol. 11, nr 11, artikel-id e15698
Nyckelord [en]
basal metabolic rate; body mass; breathing frequency; heart rate; stroke volume; tidal volume
Nationell ämneskategori
Fysiologi
Identifikatorer
URN: urn:nbn:se:liu:diva-195295DOI: 10.14814/phy2.15698ISI: 000998838800001PubMedID: 37271741OAI: oai:DiVA.org:liu-195295DiVA, id: diva2:1770387
Tillgänglig från: 2023-06-19 Skapad: 2023-06-19 Senast uppdaterad: 2023-11-10

Open Access i DiVA

fulltext(4248 kB)30 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 4248 kBChecksumma SHA-512
413256b0cd418d05088e1ce1e6ec1c2058648848497b8718554bd9518c5f763af489c49c29e3eb6192e98a78595a47b3158cbab38703b129af6860c2b2b8f0cd
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltextPubMed

Sök vidare i DiVA

Av författaren/redaktören
Fahlman, Andreas
Av organisationen
BiologiTekniska fakulteten
I samma tidskrift
Physiological Reports
Fysiologi

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 30 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 57 träffar
RefereraExporteraLänk till posten
Permanent länk

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