Interplay between the morphometry of the lungs and the mode of locomotion in birds and mammals

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dc.contributor.authorFigueroa, Daniela
dc.contributor.authorOlivares, Ricardo
dc.contributor.authorSalaberry, Michel
dc.contributor.authorSabat, Pablo
dc.contributor.authorCanals, Mauricio
dc.date.accessioned2025-01-21T01:05:42Z
dc.date.available2025-01-21T01:05:42Z
dc.date.issued2007
dc.description.abstractWe studied the lung diffusion parameters of two species of birds and two species-of mammals to explore how structural and functional features may be paralleled by differences in life style or phylogenetic origin. We used two fast-flying species (one mammal and one bird), one running mammal and one bird species that flies only occasionally as models. The harmonic mean thickness of the air-blood barrier was very thin in the species we studied. An exception was the Chilean tinamou Notoprocta perdicaria, which only flies occasionally. It showed an air-blood barrier as thick as that of flightless Galliformes. We found that the respiratory surface density was significantly greater in flying species compared to running species. The estimated values for the oxygen diffusion capacity, 13,02 follow the same pattern: the highest values were obtained in the flying species, the bat and the eared dove. The lowest value was in N. perdicaria. Our findings suggest that the studied species show refinements in their morphometric lung parameters commensurate to their energetic requirements as dictated by their mode of locomotion, rather than their phylogenetic origin. The air-blood barrier appears to be thin in most birds and small mammals, except those with low energetic requirements such as the Chilean tinamou. In the species we studied, the respiratory surface density appears to be the factor most responsive to the energetic requirements of flight.
dc.fuente.origenWOS
dc.identifier.issn0716-9760
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95997
dc.identifier.wosidWOS:000250812900010
dc.issue.numero2
dc.language.isoen
dc.pagina.final201
dc.pagina.inicio193
dc.revistaBiological research
dc.rightsacceso restringido
dc.subjectdiffusing capacity
dc.subjectlungs
dc.subjectflight
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleInterplay between the morphometry of the lungs and the mode of locomotion in birds and mammals
dc.typeartículo
dc.volumen40
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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