Blood flow rate to the femur of extinct kangaroos implies a higher locomotor intensity compared to living hopping macropods

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dc.contributor.author Hu, Qiaohui
dc.contributor.author Seymour, Roger S.
dc.contributor.author Snelling, Edward P.
dc.contributor.author Wells, Rod T.
dc.date.accessioned 2024-02-12T07:15:57Z
dc.date.available 2024-02-12T07:15:57Z
dc.date.issued 2024-01
dc.description DATA AVAILABILITY: All data supporting the findings of this study are available within the paper, Online Resource 1 and Online Resource 2. en_US
dc.description SUPPLEMENTARY MATERIAL 1 : Online Resource 1. Numbers and accession numbers of specimens. en_US
dc.description SUPPLEMENTARY MATERIAL 2 : Online Resource 2. Measurements of specimens. en_US
dc.description SUPPLEMENTARY MATERIAL 3 : Online Resource 3. Femur blood flow rate scaling among three extinct kangaroo groups. en_US
dc.description.abstract The stocky skeletons and post-cranial anatomy of many extinct kangaroos indicate that they might have engaged in varied locomotor behaviors, rather than bipedal hopping, as their primary mode of locomotion. This study investigates support for this idea by estimating femoral bone perfusion, which is a correlate of locomotor intensity, in extinct kangaroos compared to living hopping species. Femur blood flow rates can be estimated from the sizes of nutrient foramina on the femur shaft of living and extinct species, without preservation of soft tissue. Estimated femur blood flow rates among the extinct Macropus, Protemnodon and Sthenurinae (Sthenurus, Simosthenurus and Procoptodon) are not significantly different from one another but are significantly greater than in living hopping macropods after accounting for the effect of body mass, consistent with their purportedly different locomotor style. The giant sthenurines have more robust femora than extrapolated from data of living hopping macropods, possibly due to the larger sthenurines requiring relatively stronger leg bones to support their heavier body weights, especially if loaded onto a single limb during bipedal striding. en_US
dc.description.department Anatomy and Physiology en_US
dc.description.department Centre for Wildlife Management en_US
dc.description.librarian hj2024 en_US
dc.description.sdg None en_US
dc.description.sponsorship Open Access funding enabled and organized by CAUL and its Member Institutions This study was supported by Australian Research Council. en_US
dc.description.uri https://link.springer.com/journal/10914 en_US
dc.identifier.citation Hu, Q., Seymour, R.S., Snelling, E.P. et al. Blood flow rate to the femur of extinct kangaroos implies a higher locomotor intensity compared to living hopping macropods. Journal of Mammalian Evolution 31, 2 (2024). https://doi.org/10.1007/s10914-023-09701-4. en_US
dc.identifier.issn 1064-7554 (print)
dc.identifier.issn 1573-7055 (online)
dc.identifier.other 10.1007/s10914-023-09701-4
dc.identifier.uri http://hdl.handle.net/2263/94439
dc.language.iso en en_US
dc.publisher Springer en_US
dc.rights © The Author(s) 2024. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License. en_US
dc.subject Nutrient foramen en_US
dc.subject Locomotion en_US
dc.subject Kangaroos en_US
dc.subject Morphology en_US
dc.subject Femur en_US
dc.subject Blood flow en_US
dc.subject Allometry en_US
dc.title Blood flow rate to the femur of extinct kangaroos implies a higher locomotor intensity compared to living hopping macropods en_US
dc.type Article en_US


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