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Schoonaert, Kirsten; D'Aout, Kristiaan; Samuel, Diana; Talloen, Willem; Nauwelaerts, Sandra; Kivell, Tracy L.; Aerts, Peter (2016)
Publisher: Wiley
Languages: English
Types: Article
Subjects: Q1, Q, QL, QM, QP
Although much is known about the terrestrial locomotion of great apes, their arboreal locomotion has been studied less extensively. This study investigates arboreal locomotion in bonobos (Pan paniscus), focusing on the gait characteristics and spatio-temporal variables associated with locomotion on a pole. These features are compared across different substrate inclinations (0°, 30°, 45°, 60°, and 90°), and horizontal quadrupedal walking is compared between an arboreal and a terrestrial substrate. Our results show greater variation in footfall patterns with increasing incline, resulting in more lateral gait sequences. During climbing on arboreal inclines, smaller steps and strides but higher stride frequencies and duty factors are found compared to horizontal arboreal walking. This may facilitate better balance control and dynamic stability on the arboreal substrate. We found no gradual change in spatio-temporal variables with increasing incline; instead, the results for all inclines were clustered together. Bonobos take larger strides at lower stride frequencies and lower duty factors on a horizontal arboreal substrate than on a flat terrestrial substrate. We suggest that these changes are the result of the better grip of the grasping feet on an arboreal substrate. Speed modulation of the spatio-temporal variables is similar across substrate inclinations and between substrate types, suggesting a comparable underlying motor control. Finally, we contrast these variables of arboreal inclined climbing with those of terrestrial bipedal locomotion, and briefly discuss the results with respect to the origin of habitual bipedalism. Am. J. Primatol.
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    • Aerts P, Van Damme R, Van Elsacker L, Duche^ne V. 2000. Spatio-temporal gait characteristics of the hind-limb cycles during voluntary bipedal and quadrupedal walking in bonobo's (Pan paniscus). American Journal of Physical Anthropology 111:503-517.
    • Alexander RMcN. 1977a. Terrestrial locomotion. In: Alexander RMcN, Goldspink G, editors. Mechanics and energetics of animal locomotion. Chapman and Hall. p 168-203.
    • Alexander RMcN. 1977b. Mechanics and scaling of terrestrial locomotion. In: Pedley TJ, editor. Scale effects of animal locomotion. Academic Press. p 93-110.
    • Alexander RMcN. 1992. Walking and running. In: Alexander RMcN, editor. Exploring biomechanics: animals in motion. Scientific American Library. p 18-55.
    • Alexander RMcN. 2004. Bipedal animals, and their differences from humans. Journal of Anatomy 204:231-330.
    • Carlson KJ, Demes B. 2010. Gait dynamics of Cebus paella during quadrupedalism on different substrates. American Journal of Physical Anthropology 142:273-286.
    • Cartmill M. 1985. Climbing. In: Hildebrand M, Bramble DM, Liem KF, Wake DB, editors. Functional vertebrate morphology. Cambridge: Belknap Press. p 38-57.
    • Cartmill M, Lemelin P, Schmitt D. 2002. Support polygons and symmetrical gaits in mammals. Zoological Journal of the Linnean Society 136:401-420.
    • Cartmill M, Lemelin P, Schmitt D. 2007. Understanding the adaptive value of diagonal-sequence gaits in primates: a comment on Shapiro and Raichlen, 2005. American Journal of Physical Anthropology 133:822-825.
    • Crompton RH, Vereecke EE, Thorpe SKS. 2008. Locomotion and posture from the common hominoid ancestor to fully modern hominins, with special reference to the last common panin/hominin ancestor. Journal of Anatomy 212:501-543.
    • Crompton RH, Sellers WI, Thorpe SKS. 2010. Arboreality, terrestriality and bipedalism. Philosophical Transactions of the Royal Society B 365:3301-3314.
    • Diedrich FJ, Warren WH Jr. 1998. The dynamics of gait transitions: effects of grade and load. Journal of Motor Behavior 30:60-78.
    • Doran DM. 1993. Comparative locomotor behavior of chimpanzees and bonobos: the influence of morphology on locomotion. American Journal of Physical Anthropology 91:83-98.
    • Doran DM. 1997. Ontogeny of locomotion in mountain gorillas and chimpanzees. Journal of Human Evolution 32:323-344.
    • Dunbar DC, Badam GL. 2000. Locomotion and posture during terminal branch feeding. International Journal of Primatology 21:649-669.
    • D'Aou^t K, Aerts P, De Clercq D, et al. 2002. Segment and joint angles of hind limb during bipedal and quadrupedal walking of the bonobo (Pan paniscus). American Journal of Physical Anthropology 119:37-51.
    • D'Aou^t K, Vereecke E, Schoonaert K, et al. 2004. Locomotion in bonobos (Pan paniscus): differences and similarities between bipedal and quadrupedal terrestrial walking, and a comparison with other locomotor modes. Journal of Anatomy 204:353-361.
    • D'Aou^t K, Aerts P, Berillon G. 2014. Using primate models to study the evolution of human locomotion: concepts and cases. Bulletins et memoires de la Societe d'anthropologie de Paris 26:105-110.
    • Fleagle JG. 1976. Locomotion and posture of the Malayan siamang and implications for hominid evolution. Folia Primatologica 26:245-269.
    • Fleagle JG, Stern JT Jr, Jungers WL, et al. 1981. Climbing: a biomechanical link with brachiation and bipedalism. Symposia of the Zoological Society of London 48:359-375.
    • Hanna JB, Schmitt D. 2011. Interpreting the role of climbing in primate locomotor evolution: are the biomechanics of climbing influenced by habitual substrate use and anatomy? International Journal of Primatology 32:430-444.
    • Hildebrand M. 1967. Symmetrical gaits of primates. American Journal of Physical Anthropology 26:119-130.
    • Hirasaki E, Kumakura H, Matano S. 2000. Biomechanical analysis of vertical climbing in the spider monkey and the Japanese macaque. American Journal of Physical Anthropology 113:455-472.
    • Hirasaki E, Matano S. 1996. Comparison of locomotor patterns and the cerebellar complex in Ateles and Macaca. Folia Primatologica 66:209-225.
    • Hunt KD. 1994. The evolution of human bipedality: ecology and functional morphology. Journal of Human Evolution 26:183-202.
    • Inouye SE, Shea BT. 2004. The implications of variation in knuckle-walking features for models of African hominoid locomotor evolution. Journal of Anthropological Sciences 82:67-88.
    • Isler K. 2002a. Characteristics of vertical climbing in African apes. Senckenbergiana lethaea 82:115-124.
    • Isler K. 2002b. Characteristics of vertical climbing in gibbons. Evolutionary Anthropology 11:49-52.
    • Isler K. 3D-Kinematics of vertical climbing in hominoids (doctoral dissertation). Retrieved from the University of Zurich 2003.
    • Isler K. 2005. 3D-Kinematics of vertical climbing in hominoids. American Journal of Physical Anthropology 126:66-81.
    • Isler K, Thorpe SKS. 2003. Gait parameters in vertical climbing of captive, rehabilitant and wild Sumatran orang-utans (Pongo pygmaeus abelii). Journal of Experimental Biology 206:4081-4096.
    • Kennedy WJ, Gentle JE. 1980. Statistical computing. New York: CRC.
    • Kivell TL, Schmitt D. 2009. Independent evolution of knucklewalking in African apes shows that humans did not evolve from a knuckle-walking ancestor. Proceedings of the National Academy of Sciences of the United States of America 106:14241-14246.
    • Lammers AR. 2004. The biodynamics of arboreal locomotion in the gray short-tailed opossum (Monodelphis domestica) (doctoral dissertation). Retrieved from the College of Arts and Sciences of Ohio University.
    • Larson SG. 1998. Unique aspects of quadrupedal locomotion in non-human primates. In: Strasser E, Fleagle JG, Rosenberger A, McHenry H, editors. Primate locomotion. New York: Plenum Press. p 157-173.
    • Larson SG, Stern JT. 1987. EMG of chimpanzee shoulder muscles during knuckle-walking: problems of terrestrial locomotion in a suspensary adapted primate. Journal of Zoology 212:629-655.
    • Littell RC, Milliken GA, Stroup WW, Wolfinger RD. 1996. SAS system for mixed models. Cary, NC: SAS Institute, Inc.
    • Lovejoy CO, Simpson SW, White TD, Asfaw B, Suwa G. 2009. Careful climbing in the miocene: the forelimbs of Ardipithecus ramidus and humans are primitive. Science 326:70e1- 70e8.
    • Nakano Y. 2002. The effects of substratum inclination on locomotor patterns in primates. Zeitschrift fu€r Morphologie und Anthropologie 83:189-199.
    • Neter J, Kutner MH, Nachtsheim CJ, Wasserman W. 1996. Applied linear statistical models. Chicago: Irwin.
    • Nishikawa K, Biewener AA, Aerts P, et al. 2007. Neuromechanics: an integrative approach for understanding motor control. Integrative and Comparative Biology 47:16-54.
    • Nyakatura JA, Heymann EW. 2010. Effects of support size and orientation on symmetric gaits in free-ranging tamarins of Amazonian Peru: implications for the functional significance of primate gait sequence patterns. Journal of Human Evolution 58:242-251.
    • Nyakatura JA, Fischer MS, Schmidt M. 2008. Gait parameter adjustments of cotton-Top tamarins (Saguinus oedipus, callitrichidae) to locomotion on inclined arboreal substrates. American Journal of Physical Anthropology 135:13-26.
    • Preuschoft H. 2002. What does “arboreal locomotion” mean exactly and what are the relationships between “climbing”, environment and morphology? Zeitschrift fu€r Morphologie und Anthropologie 83:171-188.
    • Prost JH. 1980. Origin of bipedalism. American Journal of Physical Anthropology 52:175-190.
    • Prost JH, Sussman SW. 1969. Monkey locomotion on inclined surfaces. American Journal of Physical Anthropology 53:53-58.
    • Rice WR. 1989. Analyzing tables of statistical tests. Evolution 4:223-225.
    • Richmond BG, Strait DS. 2000. Evidence that humans evolved from a knuckle-walking ancestor. Nature 404:382-385.
    • Satterthwaite FE. 1941. Synthesis of variance. Psychometrika 6:309-316.
    • Schmidt M. 2005. Quadrupedal locomotion in squirrel monkeys (Cebidae: Saimiri sciureus): a cineradiographic study of limb kinematics and related substrate reaction forces. American Journal of Physical Anthropology 128:359-370.
    • Schmitt D. 2003. Insights into the evolution of human bipedalism from experimental studies of human and other primates. Journal of Experimental Biology 206:1437-1448.
    • Schoonaert K, D'Aou^t K, Aerts P. 2006. A dynamic force analysis system for climbing of large primates. Folia Primatologica 77:246-254.
    • Shapiro LJ, Raichlen DA. 2005. Lateral sequence walking in infant Papio cynocephalus: Implications for the evolution of diagonal sequence walking in Primates. American Journal of Physical Anthropology 126:205-213.
    • Shapiro LJ, Raichlen DA. 2006. Limb proportions and the ontogeny of quadrupedal walking in infant baboons (Papio cynocephalus). Journal of Zoology 269:191-203.
    • Shapiro LJ, Young JW. 2010. Is primate-like quadrupedalism necessary for fine-branch locomotion? A test using sugar gliders (Petaurus breviceps). Journal of Human Evolution 58:309-319.
    • Stern JT, Susman RL. 1981. Electromyography of the gluteal muscles in hylobates, pongo, and pan: implications for the evolution of hominid bipedality. American Journal of Physical Anthropology 55:153-166.
    • Stevens NJ. 2003. The influence of substrate size, orientation and compliance upon Prosimian arboreal quadrupedalism (doctoral dissertation). Stony Brook: Retrieved from the State University of New York.
    • Susman RL, Badrian NL, Badrian AJ. 1980. Locomotor behavior of Pan paniscus in Za€ıre. American Journal of Physical Anthropology 53:68-80.
    • Susman RL, Stern JTJr, Jungers WL. 1984. Arboreality and bipedality in the Hadar hominids. Folia Primatologica 43:113-156.
    • Thorpe SKS, Holder RL, Crompton RH. 2007. Origin of human bipedalism as an adaptation for locomotion on flexible branches. Science 316:1328-1331.
    • Tuttle RH. 1967. Knuckle-walking and the evolution of hominoid hands. American Journal of Physical Anthropology 26:171-206.
    • Tuttle RH. 1969. The way apes walk. Scientific Journal 5A:66-72.
    • Vilensky JA, Larson SG. 1989. Primate locomotion: utilization and control of symmetrical gaits. Annual Review of Anthropology 18:17-35.
    • Vilensky JA, Moore AM, Libii KN. 1994. Squirrel monkey locomotion on an inclined treadmill: implications for the evolution of gaits. Journal of Human Evolution 26:375- 386.
    • Wallace IJ, Demes B. 2008. Symmetrical gaits of Cebus apella: implications for the functional significance of diagonal sequence gait in primates. Journal of Human Evolution 54:783-794.
    • Young JW, Patel BA, Stevens NJ. 2007. Body mass distribution and gait mechanics in fat-tailed dwarf lemurs (Cheirogaleus medius) and patas monkeys (Erythrocebus patas). Journal of Human Evolution 53:26-40.
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