Morphological and kinematic specializations of walking frogs

Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology
Crystal M ReynagaEmanuel Azizi

Abstract

The anuran body plan is defined by morphological features associated with saltatory locomotion, but these specializations may have functional consequences for other modes of locomotion. Several frog species use a quadrupedal walking gait as their primary mode of locomotion, characterized by limbs that move in diagonal pairs. Here, we examine how walking species may deviate from the ancestral body plan and how the kinematics of a quadrupedal gait are modified to accommodate the anuran body plan. We use a comparative analysis of limb lengths to test the hypothesis that quadrupedal anurans shift away from the standard anuran condition defined by short forelimbs and long hindlimbs. We also use three-dimensional high-speed videography in four anuran species (Kassina senegalensis, Melanophryniscus stelzneri, Phrynomantis bifasciatus, and Phyllomedusa hypochondrialis) to characterize footfall patterns and body posture during quadrupedal locomotion, measuring the angle and timing of joint excursions in the fore- and hindlimb during walking to compare kinematics between limbs of disparate lengths. Our results show frogs specialized for walking tend to have less disparity in the lengths of their fore- and hindlimbs compared with other an...Continue Reading

References

Dec 21, 1989·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·A Grafen
Mar 1, 1968·Journal of Morphology·M Hildebrand
Jan 1, 1967·Folia primatologica; international journal of primatology·J R Napier, A C Walker
Jul 1, 1993·Journal of Morphology·K Steudel, J Beattie
Jan 17, 2002·Evolution; International Journal of Organic Evolution·F J Rohlf
Sep 17, 2003·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Inho ChoiRobert E Ricklefs
Dec 24, 2003·The Journal of Experimental Biology·A N AhnA A Biewener
Jan 22, 2004·Bioinformatics·Emmanuel ParadisKorbinian Strimmer
Mar 18, 2005·Nature·Daniel K Riskin, John W Hermanson
Apr 28, 2005·The Journal of Experimental Biology·Andrew A Biewener
Aug 20, 2005·The Journal of Experimental Biology·Manuela Schmidt
Jan 5, 2006·The Journal of Experimental Biology·J J ChenR J Full
Jun 17, 2006·Proceedings. Biological Sciences·Stephen M ReillyValerie A Hornyak
Dec 28, 2007·Cells, Tissues, Organs·Sharon M Swartz, Kevin M Middleton
Sep 7, 2012·PloS One·Nick J B IsaacKamran Safi
Mar 21, 2013·Journal of Evolutionary Biology·M E Jorgensen, S M Reilly
Oct 7, 2016·The Journal of Experimental Biology·Henry C Astley
Mar 10, 2017·The Journal of Experimental Biology·Laura B PorroChristopher T Richards
Dec 1, 1990·Evolution; International Journal of Organic Evolution·Sharon B Emerson, M A R Koehl
Mar 1, 1966·Evolution; International Journal of Organic Evolution·Carl Gans, Thomas S Parsons
Aug 1, 1976·Journal of Morphology·Sharon B Emerson

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Citations

Feb 14, 2020·Journal of Anatomy·Miriam Corina VeraGustavo Roberto Cointry
Aug 17, 2021·Evolution; International Journal of Organic Evolution·Daniel S MoenJohn J Wiens

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