Examining the accuracy of trackways for predicting gait selection and speed of locomotion.

Frontiers in Zoology
Andres C Marmol-GuijarroJonathan R Codd

Abstract

Using Froude numbers (Fr) and relative stride length (stride length: hip height), trackways have been widely used to determine the speed and gait of an animal. This approach, however, is limited by the ability to estimate hip height accurately and by the lack of information related to the substrate properties when the tracks were made, in particular for extinct fauna. By studying the Svalbard ptarmigan moving on snow, we assessed the accuracy of trackway predictions from a species-specific model and two additional Fr based models by ground truthing data extracted from videos as the tracks were being made. The species-specific model accounted for more than 60% of the variability in speed for walking and aerial running, but only accounted for 19% when grounded running, likely due to its stabilizing role while moving faster over a changing substrate. The error in speed estimated was 0-35% for all gaits when using the species-specific model, whereas Fr based estimates produced errors up to 55%. The highest errors were associated with the walking gait. The transition between pendular to bouncing gaits fell close to the estimates using relative stride length described for other extant vertebrates. Conversely, the transition from grou...Continue Reading

References

Jul 1, 1996·Journal of Neurophysiology·M BélangerS Rossignol
Dec 6, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·A Abourachid
Feb 2, 2002·Nature·Julia J DayH Philip Powell
Mar 1, 2002·Gait & Posture·Rakié Cham, Mark S Redfern
Sep 5, 2002·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Terrie M WilliamsW Heyward
Dec 16, 2005·The Journal of Experimental Biology·Monica A DaleyAndrew A Biewener
Jul 11, 2006·Proceedings. Biological Sciences·R McNeill Alexander
Oct 13, 2006·Proceedings of the National Academy of Sciences of the United States of America·Monica A Daley, Andrew A Biewener
May 25, 2007·Behavioural Brain Research·Marc HerbinSabine Renous
Aug 23, 2007·Proceedings. Biological Sciences·William Irvin Sellers, Phillip Lars Manning
Sep 7, 2007·Journal of Human Evolution·David A RaichlenMichael D Sockol
Dec 25, 2008·Die Naturwissenschaften·John R Hutchinson, Vivian Allen
Dec 4, 2009·Journal of Neurophysiology·Germana CappelliniFrancesco Lacquaniti
Feb 9, 2010·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·R L NuddsJ R Codd
Dec 3, 2010·Proceedings. Biological Sciences·Rebecca R WatsonRichard L Marsh
Feb 11, 2011·Anais Da Academia Brasileira De Ciências·Bernardo J González Riga
Aug 19, 2011·Proceedings. Biological Sciences·John J LeesJonathan R Codd
Jun 21, 2014·Integrative and Comparative Biology·Mu Qiao, Devin L Jindrich
Dec 10, 2014·Proceedings of the National Academy of Sciences of the United States of America·Peter L Falkingham, Stephen M Gatesy
Nov 2, 2016·The Journal of Experimental Biology·Monica A DaleyJade Hall
Apr 27, 2017·Scientific Reports·Valentina CappelloMauro Gemmi
Apr 4, 2018·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Marc HerbinRémi Hackert
Aug 9, 2019·Scientific Reports·Andres C Marmol-GuijarroJonathan R Codd

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Software Mentioned

Image J
Tracker®

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.