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Kemp AD. Effect of binocular visual cue availability on fruit and insect grasping performance in two cheirogaleids: Implications for primate origins hypotheses. J Hum Evol 2024; 188:103456. [PMID: 38325119 DOI: 10.1016/j.jhevol.2023.103456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 02/09/2024]
Abstract
Forward-facing eyes with parallel optic axes, which provide a wide field of binocular vision and precise depth perception, are among the diagnostic features of crown primates; however, the adaptive significance of this feature remains contentious. Two of the most prominent primate-origins hypotheses propose that either foraging for fruit or nocturnal predation on insects created selective pressures that led to the evolution of diagnostic primate traits, including a wide binocular field. To determine whether either of these hypotheses provides a viable explanation for the evolution of primates' derived eye orientation, the importance of binocular depth cues for the two tasks invoked by these hypotheses was evaluated experimentally in Microcebus murinus and Cheirogaleus medius, cheirogaleids' considered reasonable living analogs of the earliest euprimates. Performance in grasping insects and fruit was evaluated when the animals made use of their full binocular visual field and when their binocular visual field was restricted using a helmet-mounted blinder. Restriction of the binocular field had no effect on fruit grasping performance; however, restriction of the binocular field resulted in a significant deficit in insect predation performance. Differences in behavioral variables also suggest that insect predation is a more visually demanding task than fruit foraging. These results support the role of insect predation, but not fruit foraging, in contributing to the selective pressures that led to the evolution of parallel optic axes and a wide binocular field in crown primates.
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Affiliation(s)
- Addison D Kemp
- Department of Integrative Anatomical Sciences, Keck School of Medicine, University of Southern California, 403 Bishop Memorial Teaching Building, 133 San Pablo St, Los Angeles, CA, 90033-9112, USA.
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2
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Dickinson E, Young MW, Flaim ND, Sawiec A, Granatosky MC. A functional framework for interpreting phalangeal form. J R Soc Interface 2023; 20:20230251. [PMID: 37582408 PMCID: PMC10427194 DOI: 10.1098/rsif.2023.0251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/26/2023] [Indexed: 08/17/2023] Open
Abstract
Across tetrapods, the proportional lengths of the manual and pedal phalanges are highly constrained, following a generalized blueprint of shortening in a proximodistal gradient. Despite this, several lineages of both mammals (e.g. sloths, bats and colugos) and birds (e.g. raptors, parrots and woodpeckers) have broken this pattern, shortening the proximal phalanx while elongating more distal elements. As yet, no unifying explanation for this convergence has been empirically evaluated. This study combines a comparative phylogenetic assessment of phalangeal morphology across mammals and birds with a novel bioinspired robotics approach to explicitly test functional hypotheses relating to these morphotypes. We demonstrate that shortening the proximal phalanx allows taxa to maximize forces produced at the proximal interphalangeal joint, while elongation of subsequent elements maintains total ray length-ensuring arboreal species can still enclose large-diameter supports. Within suspensory and vertically clinging mammals, we additionally observe a secondary adaptation towards maximizing grip strength: namely increasing the height of the trochleae to increase the moment arm of digital flexor muscles that cross the joint. Together, our analyses highlight that numerous tetrapod lineages independently converged upon this morphotype to maximize proximal gripping strength, an adaptation to support specialized hunting and locomotor behaviours.
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Affiliation(s)
- Edwin Dickinson
- Department of Anatomy, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA
| | - Melody W. Young
- Department of Anatomy, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA
| | - Nicholas D. Flaim
- Department of Anatomy, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA
| | - Aleksander Sawiec
- Department of Anatomy, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA
- Center for Biomedical Innovation, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA
| | - Michael C. Granatosky
- Department of Anatomy, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA
- Center for Biomedical Innovation, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA
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3
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Dhananjaya T, Das S, Harpalani M, Huffman MA, Singh M. Can urbanization accentuate hand use in the foraging activities of primates? AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2022; 178:667-677. [PMID: 36790685 DOI: 10.1002/ajpa.24532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 04/08/2022] [Accepted: 04/19/2022] [Indexed: 11/07/2022]
Abstract
OBJECTIVES How a species uses its anatomical manipulators is determined by its anatomy, physiology, and ecology. While ecology explains interspecific variation in gripping, grasping, and manipulating objects, its role in intraspecific variation in mouth- and hand-use by animals is less explored. Primates are distinguished by their prehensile capabilities and manual dexterity. In context to the adaptive pressures of urbanization on primates, we examined if mouth and hand use differed across the forest-urban gradient in food retrieval and processing under experimental and naturalistic conditions in cercopithecids, a family comprising several urbanizing primates. MATERIALS AND METHODS We recorded the acquisition and processing of peanuts under experimental conditions in three groups of bonnet macaques (BM, Macaca radiata) differing in their dietary dependence on packaged food items along a rural-urban gradient. To affirm the pattern obtained in the experiment, we coded food acquisition of three cercopithecid species in similar habitats from video sources. RESULTS Urban macaques had a disproportionately higher hand use to acquire and process peanuts while rural macaques had higher mouth use. Based on analyses of videos, urban populations of BM, Japanese macaque (M. fuscata) and vervet monkey (Chlorocebus pygerythrus) showed a bias toward hand use during food acquisition. DISCUSSION The adaptive pressures of urbanization, like the manual constraints of extracting packaged foods and perhaps, the need for visual-haptic exploration of novel objects seem to accentuate hand use in synanthropic groups of primates. Additional research should ascertain similar patterns in other primates and determine specific aspects of urbanization that modulate the observed trend.
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Affiliation(s)
- Tejeshwar Dhananjaya
- Biopsychology laboratory, Institution of Excellence, University of Mysore, Mysuru, India
| | - Sayantan Das
- Biopsychology laboratory, Institution of Excellence, University of Mysore, Mysuru, India.,Wildlife Information Liaison Development, Coimbatore, Tamil Nadu, India
| | - Monica Harpalani
- Biopsychology laboratory, Institution of Excellence, University of Mysore, Mysuru, India
| | | | - Mewa Singh
- Biopsychology laboratory, Institution of Excellence, University of Mysore, Mysuru, India.,Zoo Outreach Organization, Coimbatore, Tamil Nadu, India
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4
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Laird MF, Punjani Z, Oshay RR, Wright BW, Fogaça MD, Casteren A, Izar P, Visalberghi E, Fragazy D, Strait DS, Ross CF, Wright KA. Feeding postural behaviors and food geometric and material properties in bearded capuchin monkeys (
Sapajus libidinosus
). AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2022. [PMCID: PMC9305483 DOI: 10.1002/ajpa.24501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objectives Foods that are geometrically and mechanically challenging to eat have been associated with specializations in feeding behavior and craniodental morphology across primates, and many of these foods are embedded, requiring a variety of positional behaviors during feeding. However, variation in positional behaviors in response to food properties is not well understood. Here, we examine differences in feeding postural behaviors across feeding events in relation to substrate and food geometric and material properties in a species of extractive foragers, bearded capuchins (Sapajus libidinosus). Methods and materials We coded over 1400 co‐occurring postural and feeding behaviors, their durations, and relative sizes of substrate and food from videos recorded at Fazenda Boa Vista in Gilbués, Piauí, Brazil. Food material properties were measured from foods collected at the time of the video recordings. Results Our results suggest that bearded capuchin feeding postures significantly differ across the feeding sequence, with substrate size, and between foods of high and low toughness and elastic modulus. Feeding postures were less variable for highly mechanically challenging foods. Food size also had a significant effect on postural behaviors. Large foods were more likely to be associated with suspended postures and small foods with sitting and squatting. Feeding postural behaviors were best explained by a combination of substrate and food variables. Conclusions Our results indicate that food geometric and mechanical properties have a significant influence on feeding postural behaviors in bearded capuchins. We posit that feeding postural behaviors reflect a combination of substrate variables and food properties, and large, mechanically challenging foods have a limiting effect on postural variation.
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Affiliation(s)
- Myra F. Laird
- Department of Integrative Anatomical Sciences University of Southern California Los Angeles California USA
| | - Zeenia Punjani
- Department of Integrative Anatomical Sciences University of Southern California Los Angeles California USA
| | - Rachel R. Oshay
- Department of Integrative Anatomical Sciences University of Southern California Los Angeles California USA
| | - Barth W. Wright
- Department of Surgery University of Kansas Medical Center Kansas City Kansas USA
| | - Mariana Dutra Fogaça
- Department of Biomedical Sciences Institute of Population Genetics, University of Veterinary Medicine Vienna Austria
- Neotropical Primates Research Group – NeoPReGo São Paulo Brazil
| | - Adam Casteren
- Department of Human Evolution Max Planck Institute for Evolutionary Anthropology Leipzig Germany
| | - Patrícia Izar
- Department of Experimental Psychology University of São Paulo São Paulo Brazil
| | - Elisabetta Visalberghi
- Institute of Cognitive Sciences and Technologies, National Research Council (CNR) Rome Italy
| | - Dorothy Fragazy
- Department of Psychology University of Georgia Athens Georgia USA
| | - David S. Strait
- Department of Anthropology Washington University in St. Louis St. Louis Missouri USA
- Palaeo‐Research Institute, University of Johannesburg, Cnr Kingsway and University Road Auckland Park Auckland Park South Africa
| | - Callum F. Ross
- Department of Organismal Biology and Anatomy University of Chicago Chicago Illinois USA
| | - Kristin A. Wright
- Department of Biomedical Sciences University of Missouri Kansas City School of Medicine Kansas City Missouri USA
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5
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Soppelsa J, Pouydebat E, Lefeuvre M, Mulot B, Houssin C, Cornette R. The relationship between distal trunk morphology and object grasping in the African savannah elephant ( Loxodonta africana). PeerJ 2022; 10:e13108. [PMID: 35368332 PMCID: PMC8969868 DOI: 10.7717/peerj.13108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/22/2022] [Indexed: 01/12/2023] Open
Abstract
Background During reach-to-grasp movements, the human hand is preshaped depending on the properties of the object. Preshaping may result from learning, morphology, or motor control variability and can confer a selective advantage on that individual or species. This preshaping ability is known in several mammals (i.e., primates, carnivores and rodents). However, apart from the tongue preshaping of lizards and chameleons, little is known about preshaping of other grasping appendages. In particular, the elephant trunk, a muscular hydrostat, has impressive grasping skills and thus is commonly called a hand. Data on elephant trunk grasping strategies are scarce, and nothing is known about whether elephants preshape their trunk tip according to the properties of their food. Methods To determine the influence of food sizes and shapes on the form of the trunk tip, we investigated the morphology of the distal part of the trunk during grasping movements. The influence of food item form on trunk tip shape was quantified in six female African savannah elephants (Loxodonta africana). Three food item types were presented to the elephants (elongated, flat, and cubic), as well as three different sizes of cubic items. A total of 107 ± 10 grips per individual were video recorded, and the related trunk tip shapes were recorded with a 2D geometric morphometric approach. Results Half of the individuals adjusted the shape of the distal part of their trunk according to the object type. Of the three elephants that did not preshape their trunk tip, one was blind and another was subadult. Discussion and perspectives We found that elephants preshaped their trunk tip, similar to the preshaping of other species' hands or paws during reach-to-grasp movements. This preshaping may be influenced by visual feedback and individual learning. To confirm these results, this study could be replicated with a larger sample of elephants.
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Affiliation(s)
- Julie Soppelsa
- Adaptive Mechanisms and Evolution (MECADEV), Centre national de la recherche scientifique/Muséum national d’Histoire naturelle, Paris, France
| | - Emmanuelle Pouydebat
- Adaptive Mechanisms and Evolution (MECADEV), Centre national de la recherche scientifique/Muséum national d’Histoire naturelle, Paris, France
| | - Maëlle Lefeuvre
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University Cracow, Cracow, Poland
| | - Baptiste Mulot
- Zooparc de Beauval & Beauval Nature, Saint-Aignan, France
| | - Céline Houssin
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Centre national de la recherche scientifique/ Muséum national d’Histoire naturelle, SU, EPHE, UA, Paris, France
| | - Raphaël Cornette
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Centre national de la recherche scientifique/ Muséum national d’Histoire naturelle, SU, EPHE, UA, Paris, France
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6
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Dickinson E, Boettcher ML, Smith MR, Worden NA, Swindell SR, Seelye JS, Pastor F, Hartstone‐Rose A. Myological variation in the forearm anatomy of Callitrichidae and Lemuridae. J Anat 2021; 239:669-681. [PMID: 34018180 PMCID: PMC8349451 DOI: 10.1111/joa.13440] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 11/29/2022] Open
Abstract
The anatomy of the primate forearm is frequently investigated in terms of locomotor mode, substrate use, and manual dexterity. Such studies typically rely upon broad, interspecific samples for which one or two representative taxa are used to characterize the anatomy of their genus or family. To interpret variation between distantly related taxa, however, it is necessary to contextualize these differences by quantifying variation at lower hierarchical levels, that is, more fine-grained representation within specific genera or families. In this study, we present a focused evaluation of the variation in muscle organization, integration, and architecture within two speciose primate families: the Callitrichidae and Lemuridae. We demonstrate that, within each lineage, several muscle functional groups exhibit substantial variation in muscle organization. Most notably, the digital extensors appear highly variable (particularly among callitrichids), with many unique configurations represented. In terms of architectural variables, both families are more conservative, with the exception of the genus Callimico-for which an increase is observed in forearm muscle mass and strength. We suggest this reflects the increased use of vertical climbing and trunk-to-trunk leaping within this genus relative to the more typically fine-branch substrate use of the other callitrichids. Overall, these data emphasize the underappreciated variation in forearm myology and suggest that overly generalized typification of a taxon's anatomy may conceal significant intraspecific and intrageneric variation therein. Thus, considerations of adaptation within the forearm musculature should endeavor to consider the full range of anatomical variation when making comparisons between multiple taxa within an evolutionary context.
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Affiliation(s)
- Edwin Dickinson
- Department of Biological SciencesNorth Carolina State UniversityRaleighNCUSA
| | - Marissa L. Boettcher
- Department of Biological SciencesNorth Carolina State UniversityRaleighNCUSA
- Medical University of South CarolinaCharlestonSCUSA
| | - Madison R. Smith
- Department of Biological SciencesNorth Carolina State UniversityRaleighNCUSA
| | - Nikole A. Worden
- Department of Biological SciencesNorth Carolina State UniversityRaleighNCUSA
| | - Sidney R. Swindell
- Department of Biological SciencesNorth Carolina State UniversityRaleighNCUSA
| | - Jason S. Seelye
- Department of Biological SciencesNorth Carolina State UniversityRaleighNCUSA
| | - Francisco Pastor
- Departamento de Anatomia y RadiologiaUniversidad de ValladolidMuseo AnatomicoValladolidSpain
| | - Adam Hartstone‐Rose
- Department of Biological SciencesNorth Carolina State UniversityRaleighNCUSA
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7
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Galvin L, Mirza Agha B, Saleh M, Mohajerani MH, Whishaw IQ. Learning to cricket hunt by the laboratory mouse (Mus musculus): Skilled movements of the hands and mouth in cricket capture and consumption. Behav Brain Res 2021; 412:113404. [PMID: 34139203 DOI: 10.1016/j.bbr.2021.113404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 01/02/2023]
Abstract
Although the mouse (Mus musculus) is preyed upon by many other species of animals, it is also a predator and will hunt and consume crickets. There has been no previous description of how mice learn to hunt and no report on the extent to which they use their hands and mouth to assist prey capture and these were the objectives of the present study. Mice given one cricket each day displayed decreasing hunt times over 25-days for three phases of a hunt: investigate, in which a mouse explored and periodically encounter a cricket and often bit at it; pursue, in which a mouse's approach remained focused on the cricket until it was captured; and consume, in which the cricket was handled, decapitated, its core eaten, with its shell discarded. Although visual and auditory cues may contribute to locating a cricket, the vibrissae appeared to provide guidance in pursuit and capture when the cricket and mouse were proximate. Cricket capture involved extensive collaborative use of the mouth and the hands and mice could initiate capture with either the mouth or hands. Handling to eat involved manipulating the cricket into a head-up, ventrum-in position for decapitation and selective eating of the core of the cricket. The results are discussed in relation to mouse learning of a complex natural behavior, the use of tactile cues in the species-specific behavior of predation, and the contributions of the hands and mouth to predation.
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Affiliation(s)
- Liam Galvin
- Department of Neuroscience, Canadian Centre for Behavioral Neuroscience, University of Lethbridge, Canada
| | - Behroo Mirza Agha
- Department of Neuroscience, Canadian Centre for Behavioral Neuroscience, University of Lethbridge, Canada
| | - Muhammad Saleh
- Department of Neuroscience, Canadian Centre for Behavioral Neuroscience, University of Lethbridge, Canada
| | - Maid H Mohajerani
- Department of Neuroscience, Canadian Centre for Behavioral Neuroscience, University of Lethbridge, Canada
| | - Ian Q Whishaw
- Department of Neuroscience, Canadian Centre for Behavioral Neuroscience, University of Lethbridge, Canada.
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8
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Boulinguez-Ambroise G, Herrel A, Berillon G, Young JW, Cornette R, Meguerditchian A, Cazeau C, Bellaiche L, Pouydebat E. Increased performance in juvenile baboons is consistent with ontogenetic changes in morphology. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2021; 175:546-558. [PMID: 33483958 DOI: 10.1002/ajpa.24235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/19/2020] [Accepted: 01/08/2021] [Indexed: 11/10/2022]
Abstract
OBJECTIVES In many primates, the greater proportion of climbing and suspensory behaviors in the juvenile repertoire likely necessitates good grasping capacities. Here, we tested whether very young individuals show near-maximal levels of grasping strength, and whether such an early onset of grasping performance could be explained by ontogenetic variability in the morphology of the limbs in baboons. MATERIAL AND METHODS We quantified a performance trait, hand pull strength, at the juvenile and adult stages in a cross-sectional sample of 15 olive baboons (Papio anubis). We also quantified bone dimensions (i.e., lengths, widths, and heights) of the fore- (n = 25) and hind limb (n = 21) elements based on osteological collections covering the whole development of olive baboons. RESULTS One-year old individuals demonstrated very high pull strengths (i.e., 200% of the adult performance, relative to body mass), that are consistent with relatively wider phalanges and digit joints in juveniles. The mature proportions and shape of the forelimb elements appeared only at full adulthood (i.e., ≥4.5 years), whereas the mature hind limb proportions and shape were observed much earlier during development. DISCUSSION These changes in limb performance and morphology across ontogeny may be explained with regard to behavioral transitions that olive baboons experience during their development. Our findings highlight the effect of infant clinging to mother, an often-neglected feature when discussing the origins of grasping in primates. The differences in growth patterns, we found between the forelimb and the hind limb further illustrate their different functional roles, having likely evolved under different ecological pressures (manipulation and locomotion, respectively).
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Affiliation(s)
- Grégoire Boulinguez-Ambroise
- Mecanismes Adaptatifs et Évolution UMR7179, CNRS-National Museum of Natural History, Paris Cedex 5, France.,Laboratoire de Psychologie Cognitive UMR7290, CNRS, Aix-Marseille Univ, Marseille, France.,Station de Primatologie CNRS, Rousset-sur-Arc, France
| | - Anthony Herrel
- Mecanismes Adaptatifs et Évolution UMR7179, CNRS-National Museum of Natural History, Paris Cedex 5, France
| | - Gilles Berillon
- Station de Primatologie CNRS, Rousset-sur-Arc, France.,Département Homme et Environnement, Musée de L'Homme, UMR 7194 CNRS-MNHN, Place du Trocadéro, Paris, France
| | - Jesse W Young
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio, USA
| | - Raphaël Cornette
- Origine, Structure et Evolution de la Biodiversité, UMR 7205, CNRS/MNHN, Paris, France
| | - Adrien Meguerditchian
- Laboratoire de Psychologie Cognitive UMR7290, CNRS, Aix-Marseille Univ, Marseille, France.,Station de Primatologie CNRS, Rousset-sur-Arc, France
| | | | | | - Emmanuelle Pouydebat
- Mecanismes Adaptatifs et Évolution UMR7179, CNRS-National Museum of Natural History, Paris Cedex 5, France
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9
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Lefeuvre M, Gouat P, Mulot B, Cornette R, Pouydebat E. Behavioural variability among captive African elephants in the use of the trunk while feeding. PeerJ 2020; 8:e9678. [PMID: 32874780 PMCID: PMC7441921 DOI: 10.7717/peerj.9678] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/16/2020] [Indexed: 11/20/2022] Open
Abstract
The Proboscideans, an order of mammals including elephants, are the largest of the Earth lands animals. One probable consequence of the rapid increase of their body size is the development of the trunk, a multitask highly sensitive organ used in a large repertoire of behaviours. The absence of bones in the trunk allows a substantial degree of freedom for movement in all directions, and this ability could underlie individual-level strategies. We hypothesised a stronger behavioural variability in simple tasks, and a correlation between the employed behaviours and the shape and size of the food. The observations of a captive group of African elephants allowed us to create a complete catalogue of trunk movements in feeding activities. We noted manipulative strategies and impact of food item properties on the performed behaviours. The results show that a given item is manipulated with a small panel of behaviours, and some behaviours are specific to a single shape of items. The study of the five main feeding behaviours emphasises a significant variability between the elephants. Each individual differed from every other individual in the proportion of at least one behaviour, and every behaviour was performed in different proportions by the elephants. Our findings suggest that during their lives elephants develop individual strategies adapted to the manipulated items, which increases their feeding efficiency.
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Affiliation(s)
- Maëlle Lefeuvre
- Adaptive Mechanisms and Evolution, CNRS/MNHN MECADEV, Paris, France.,Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Cracow, Poland
| | - Patrick Gouat
- Laboratoire d'Éthologie Expérimentale et Comparée E.A. 4443, Université Sorbonne Paris Nord, Villetaneuse, France
| | - Baptiste Mulot
- Zooparc de Beauval & Beauval Nature, Saint-Aignan, France
| | - Raphaël Cornette
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, Paris, France
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10
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Boulinguez-Ambroise G, Herrel A, Pouydebat E. Ontogeny of locomotion in mouse lemurs: Implications for primate evolution. J Hum Evol 2020; 142:102732. [PMID: 32172006 DOI: 10.1016/j.jhevol.2019.102732] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 11/20/2019] [Accepted: 12/02/2019] [Indexed: 10/25/2022]
Abstract
The environment of juvenile primates is very challenging. They have to forage and move on the same substrates as adults do and escape the same predators, despite their immature state. In this study, we explore the developmental strategies that may provide effective locomotor abilities early in life. This could provide new insights into the selective pressures acting on juvenile primates and into evolution of primate locomotion. We conducted an ontogenetic study of 36 arboreal gray mouse lemurs from birth to adulthood (6 months of age). The investigated parameters were, for both limbs, (1) grasping behavior during locomotion (i.e., grip postures), (2) grasping performance (i.e., pull strength), and (3) motor coordination (i.e., rotarod test). Our results show that 8-day-old babies are able to climb substrates of various slopes and diameters outside of their nest. Although juveniles cannot successfully complete a motor coordination test before 30 days of age, young individuals display relative pull strengths that are very high or even on par with adults, guaranteeing stability on narrow substrates. These powerful grasps highlight the importance of the grasping function for these juveniles that are not carried and move independently on arboreal substrates shortly after their first week of life. Moreover, the pedal grasping provides a secure grasp on all substrates across ontogeny; however, manual secure grasps decrease during development, being highly used only shortly after birth on vertical and narrow substrates. These results first suggest different functional roles of the hands and feet, with the hind limbs ensuring body balance on the substrates, freeing the upper limbs for manipulation. They further show vertical and narrow branches to be especially challenging, requiring strong grasps, which suggests that they may drive the evolution of strong grasping abilities in primates.
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Affiliation(s)
| | - Anthony Herrel
- UMR 7179-CNRS, National Museum of Natural History, 75321, Paris, Cedex 5, France
| | - Emmanuelle Pouydebat
- UMR 7179-CNRS, National Museum of Natural History, 75321, Paris, Cedex 5, France
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11
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Toussaint S, Llamosi A, Morino L, Youlatos D. The Central Role of Small Vertical Substrates for the Origin of Grasping in Early Primates. Curr Biol 2020; 30:1600-1613.e3. [PMID: 32169214 DOI: 10.1016/j.cub.2020.02.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/16/2019] [Accepted: 02/04/2020] [Indexed: 02/07/2023]
Abstract
The manual and pedal grasping abilities of primates, characterized by an opposable hallux, flat nails, and elongated digits, constitute a unique combination of features that likely promoted their characteristic use of arboreal habitats. These hand and foot specificities are central for understanding the origins and early evolution of primates and have long been associated with foraging in a fine-branch milieu. However, other arboreal mammals occupy similar niches, and it remains unclear how substrate type may have exerted a selective pressure on the acquisition of nails and a divergent pollex/hallux in primates or in what sequential order these traits evolved. Here, we video-recorded 14,564 grasps during arboreal locomotion in 11 primate species (6 strepsirrhines and 5 platyrrhines) and 11 non-primate arboreal species (1 scandentian, 3 rodents, 3 carnivorans, and 4 marsupials). We quantified our observations with 19 variables to analyze the effect of substrate orientation and diameter on hand and foot postural repertoire. We found that hand and foot postures correlate with phylogeny. Also, primates exhibited high repertoire diversity, with a strong capability for postural adjustment compared to the other studied groups. Surprisingly, nails do not confer an advantage in negotiating small substrates unless the animal is large, but the possession of a grasping pollex and hallux is crucial for climbing small vertical substrates. We propose that the divergent hallux and pollex may have resulted from a frequent use of vertical plants in early primate ecological scenarios, although nails may not have resulted from a fundamental adaptation to arboreal locomotion.
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Affiliation(s)
- Severine Toussaint
- Centre de Recherche en Paléontologie-Paris, UMR 7207, CNRS/MNHN/UPMC, 8 rue Buffon CP38, 75231 Paris Cedex 05, France; Centre de Recherche Interdisciplinaire, Département Frontières du vivant et de l'apprendre, 8 bis rue Charles V, 75004 Paris, France; UFR Sciences Du Vivant, Université Paris Diderot-Paris 7, Sorbonne Universités, 35 rue Hélène Brion, 75013 Paris, France.
| | - Artémis Llamosi
- Centre de Recherche Interdisciplinaire, Département Frontières du vivant et de l'apprendre, 8 bis rue Charles V, 75004 Paris, France; UFR Sciences Du Vivant, Université Paris Diderot-Paris 7, Sorbonne Universités, 35 rue Hélène Brion, 75013 Paris, France
| | - Luca Morino
- Parc Zoologique de Paris, Muséum National d'Histoire Naturelle, Sorbonne Université, 53 avenue de Saint Maurice, 75012 Paris, France
| | - Dionisios Youlatos
- Department of Zoology, School of Biology, Aristotle University of Thessaloniki, Panepistimioupoli, 54124 Thessaloniki, Greece
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12
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Peckre LR, Lowie A, Brewer D, Ehmke E, Welser K, Shaw E, Wall C, Pouydebat E, Fabre AC. Food mobility and the evolution of grasping behaviour: a case study in strepsirrhine primates. ACTA ACUST UNITED AC 2019; 222:jeb.207688. [PMID: 31558589 DOI: 10.1242/jeb.207688] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/23/2019] [Indexed: 01/31/2023]
Abstract
Manual grasping is widespread among tetrapods but is more prominent and dexterous in primates. Whether the selective pressures that drove the evolution of dexterous hand grasping involved the collection of fruit or predation on mobile insects remains an area of debate. One way to explore this question is to examine preferences for manual versus oral grasping of a moving object. Previous studies on strepsirrhines have shown a preference for oral grasping when grasping static food items and a preference for manual grasping when grasping mobile prey such as insects, but little is known about the factors at play. Using a controlled experiment with a simple and predictable motion of a food item, we tested and compared the grasping behaviours of 53 captive individuals belonging to 17 species of strepsirrhines while grasping swinging food items and static food items. The swinging motion increased the frequency of hand-use for all individuals. Our results provide evidence that the swinging motion of the food is a sufficient parameter to increase hand grasping in a wide variety of strepsirrhine primates. From an evolutionary perspective, this result gives some support to the idea that hand-grasping abilities evolved under selective pressure associated with the predation of food items in motion. Looking at a common grasping pattern across a large set of species, this study provides important insight into comparative approaches to understanding the evolution of the hand grasping of food in primates and potentially other tetrapod taxa.
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Affiliation(s)
- Louise Rachel Peckre
- UMR 7179 CNRS/MNHN, 57 rue Cuvier, Case postale 55, 75231 Paris Cedex 5, France .,Behavioral Ecology and Sociobiology Unit, German Primate Center - Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany.,Leibniz Science Campus 'Primate Cognition', 37077 Göttingen, Germany
| | - Aurélien Lowie
- UMR 7179 CNRS/MNHN, 57 rue Cuvier, Case postale 55, 75231 Paris Cedex 5, France.,Evolutionary Morphology of Vertebrates, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | | | - Erin Ehmke
- Duke Lemur Center, Durham, NC 27705, USA
| | - Kay Welser
- Duke Lemur Center, Durham, NC 27705, USA
| | - Erin Shaw
- Duke Lemur Center, Durham, NC 27705, USA
| | - Christine Wall
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA
| | | | - Anne-Claire Fabre
- UMR 7179 CNRS/MNHN, 57 rue Cuvier, Case postale 55, 75231 Paris Cedex 5, France.,Duke Lemur Center, Durham, NC 27705, USA.,Department of Life Sciences, The Natural History Museum, London SW7 5DB, UK
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13
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Barbera AM, Delaunay MG, Dougill G, Grant RA. Paw Morphology in the Domestic Guinea Pig (
Cavia porcellus
) and Brown Rat (
Rattus norvegicus
). Anat Rec (Hoboken) 2019; 302:2300-2310. [DOI: 10.1002/ar.24271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 05/29/2019] [Accepted: 06/06/2019] [Indexed: 01/03/2023]
Affiliation(s)
- Adam M. Barbera
- School of Science and Environment, Manchester Metropolitan University Manchester UK
| | - Mariane G. Delaunay
- School of Science and Environment, Manchester Metropolitan University Manchester UK
| | - Gary Dougill
- School of Science and Environment, Manchester Metropolitan University Manchester UK
| | - Robyn A. Grant
- School of Science and Environment, Manchester Metropolitan University Manchester UK
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14
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Boettcher ML, Leonard KC, Dickinson E, Aujard F, Herrel A, Hartstone‐Rose A. The Forearm Musculature of the Gray Mouse Lemur (
Microcebus murinus
): An Ontogenetic Study. Anat Rec (Hoboken) 2019; 303:1354-1363. [DOI: 10.1002/ar.24258] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/03/2019] [Accepted: 07/07/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Marissa L. Boettcher
- Department of Biological Sciences North Carolina State University Raleigh North Carolina
| | - Kaitlyn C. Leonard
- Department of Biological Sciences North Carolina State University Raleigh North Carolina
| | - Edwin Dickinson
- Department of Biological Sciences North Carolina State University Raleigh North Carolina
| | | | | | - Adam Hartstone‐Rose
- Department of Biological Sciences North Carolina State University Raleigh North Carolina
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15
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Pouydebat E, Bardo A. An interdisciplinary approach to the evolution of grasping and manipulation. Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/blz058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Emmanuelle Pouydebat
- UMR 7179 CNRS/MNHN, Département d’Ecologie et de Gestion de la Biodiversité, Paris, France
| | - Ameline Bardo
- Animal Postcranial Evolution Laboratory, Skeletal Biology Research Centre, School of Anthropology and Conservation, University of Kent, Canterbury, Kent, UK
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16
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Nyakatura JA. Early primate evolution: insights into the functional significance of grasping from motion analyses of extant mammals. Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/blz057] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- John A Nyakatura
- AG Morphologie und Formengeschichte, Institut für Biologie, Humboldt Universität, Philippstraße, Berlin, Germany
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17
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Peckre LR, Fabre AC, Hambuckers J, Wall CE, Socias-Martínez L, Pouydebat E. Food properties influence grasping strategies in strepsirrhines. Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/bly215] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Louise R Peckre
- UMR 7179 CNRS/MNHN, 57 rue Cuvier, Case postale, Paris Cedex 5, France
- Behavioural Ecology & Sociobiology Unit, German Primate Centre, Leibniz Institute for Primate Research, Kellnerweg, Göttingen, Germany
| | - Anne-Claire Fabre
- UMR 7179 CNRS/MNHN, 57 rue Cuvier, Case postale, Paris Cedex 5, France
- Department of Life Sciences, The Natural History Museum, London, UK
| | - Julien Hambuckers
- Georg-August-Universität Göttingen, Faculty of Economic Sciences, Chair of Statistics, Humboldtallee, Göttingen, Germany
- HEC Liège, University of Liège, 14 rue Louvrex, Liège, Belgium
| | - Christine E Wall
- Department of Evolutionary Anthropology, Duke University, Durham, USA
| | - lluís Socias-Martínez
- Behavioural Ecology & Sociobiology Unit, German Primate Centre, Leibniz Institute for Primate Research, Kellnerweg, Göttingen, Germany
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18
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Boulinguez‐Ambroise G, Zablocki‐Thomas P, Aujard F, Herrel A, Pouydebat E. Ontogeny of food grasping in mouse lemurs: behavior, morphology and performance. J Zool (1987) 2019. [DOI: 10.1111/jzo.12652] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - F. Aujard
- UMR 7179‐ CNRS, National Museum of Natural History Paris France
| | - A. Herrel
- UMR 7179‐ CNRS, National Museum of Natural History Paris France
| | - E. Pouydebat
- UMR 7179‐ CNRS, National Museum of Natural History Paris France
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19
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Montuelle SJ, Kane EA. Food Capture in Vertebrates: A Complex Integrative Performance of the Cranial and Postcranial Systems. FEEDING IN VERTEBRATES 2019. [DOI: 10.1007/978-3-030-13739-7_4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Fabre AC, Peckre L, Pouydebat E, Wall CE. Does the shape of forelimb long bones co-vary with grasping behaviour in strepsirrhine primates? Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/bly188] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Abstract
Fine prehensile activities are often thought to have been associated with the evolution of the human hand. However, there has been no holistic approach establishing the link between the morphology of the forelimb and grasping ability in living primates. The present study investigated the possible relationships between grasping behaviour and the morphology of the forelimb in strepsirrhines in a phylogenetic context. To do so, grasping behaviour during feeding and the shape of the long bones of the forelimb were analysed for 22 species of strepsirrhines. The data obtained show that there is a phylogenetic signal in forelimb morphology in primates in relation to grasping behaviour, but also that there is a marked co-evolution between grasping behaviour and the shape of the humerus and radius. This latter finding suggests a functional association between grasping and forelimb shape, which in turn suggests that bone shape constrains or facilitates behaviour. This result may permit future inferences to be made regarding this behaviour in extinct species and deserves further examination in more detail.
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Affiliation(s)
- Anne-Claire Fabre
- Department of Life Sciences, The Natural History Museum, London, UK
- Department of Evolutionary Anthropology, Duke University, Durham, USA
- UMR 7179 C.N.R.S., M.N.H.N. Département d’Ecologie et de Gestion de la Biodiversité, Muséum National d’Histoire Naturelle, Paris, France
| | - Louise Peckre
- UMR 7179 C.N.R.S., M.N.H.N. Département d’Ecologie et de Gestion de la Biodiversité, Muséum National d’Histoire Naturelle, Paris, France
- Behavioral Ecology & Sociobiology Unit, German Primate Center Leibniz Institute for Primate Research, Deutsches Primatenzentrum GmbH, Kellnerweg, Göttingen, Germany
| | - Emmanuelle Pouydebat
- UMR 7179 C.N.R.S., M.N.H.N. Département d’Ecologie et de Gestion de la Biodiversité, Muséum National d’Histoire Naturelle, Paris, France
| | - Christine E Wall
- Department of Evolutionary Anthropology, Duke University, Durham, USA
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21
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Le Brazidec M, Herrel A, Thomas P, Grégoire BA, Aujard F, Pouydebat E. How Aging Affects Grasping Behavior and Pull Strength in Captive Gray Mouse Lemurs (Microcebus murinus). INT J PRIMATOL 2017. [DOI: 10.1007/s10764-017-0001-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Anzeraey A, Aumont M, Decamps T, Herrel A, Pouydebat E. The effect of food properties on grasping and manipulation in the aquatic frog Xenopus laevis. ACTA ACUST UNITED AC 2017; 220:4486-4491. [PMID: 28982969 DOI: 10.1242/jeb.159442] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 10/03/2017] [Indexed: 11/20/2022]
Abstract
The ability to grasp an object is fundamental from an evolutionary perspective. Involved in many daily activities, grasping has been extensively studied in primates and other mammals. Yet other groups of tetrapods, including anurans, have also evolved significant forelimb prehensile capacities that are often thought to have originated in an arboreal context. In addition, grasping is also observed in aquatic species. But how aquatic frogs use their forelimbs to capture and manipulate prey remains largely unknown. The aim of this study is to explore how the grasping and manipulation of food items in aquatic frogs is impacted by food properties such as size and mobility. To do so, we uses the aquatic frog Xenopus laevis and quantified the use of the hands and fingers while processing mobile and stationary prey of different sizes (small, intermediate and large). Our results show that X. laevis is able to individualize the digits and that the mobility and the length of the prey significantly influence the kind of grasping pattern used. Grasping abilities are thus not specific to terrestrial or arboreal species. These results illustrate how prey properties impact grasping and manipulation strategies in an aquatic frog and shed further light on the ecological contexts that may have given rise to the origin of grasping in frogs.
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Affiliation(s)
- Aude Anzeraey
- UMR 7179 CNRS/MNHN, Département Adaptations du Vivant, 75005, Paris Cedex 5, France
| | - Madeleine Aumont
- UMR 7179 CNRS/MNHN, Département Adaptations du Vivant, 75005, Paris Cedex 5, France
| | - Thierry Decamps
- UMR 7179 CNRS/MNHN, Département Adaptations du Vivant, 75005, Paris Cedex 5, France
| | - Anthony Herrel
- UMR 7179 CNRS/MNHN, Département Adaptations du Vivant, 75005, Paris Cedex 5, France
| | - Emmanuelle Pouydebat
- UMR 7179 CNRS/MNHN, Département Adaptations du Vivant, 75005, Paris Cedex 5, France
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23
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Peckre L, Fabre AC, Wall CE, Brewer D, Ehmke E, Haring D, Shaw E, Welser K, Pouydebat E. Holding-on: co-evolution between infant carrying and grasping behaviour in strepsirrhines. Sci Rep 2016; 6:37729. [PMID: 27883046 PMCID: PMC5121892 DOI: 10.1038/srep37729] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 10/31/2016] [Indexed: 11/09/2022] Open
Abstract
The origin and evolution of manual grasping remain poorly understood. The ability to cling requires important grasping abilities and is essential to survive in species where the young are carried in the fur. A previous study has suggested that this behaviour could be a pre-adaptation for the evolution of fine manipulative skills. In this study we tested the co-evolution between infant carrying in the fur and manual grasping abilities in the context of food manipulation. As strepsirrhines vary in the way infants are carried (mouth vs. fur), they are an excellent model to test this hypothesis. Data on food manipulation behaviour were collected for 21 species of strepsirrhines. Our results show that fur-carrying species exhibited significantly more frequent manual grasping of food items. This study clearly illustrates the potential novel insights that a behaviour (infant carrying) that has previously been largely ignored in the discussion of the evolution of primate manipulation can bring.
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Affiliation(s)
- Louise Peckre
- UMR 7179 C.N.R.S/M.N.H.N., 57 rue Cuvier, Case postale 55, 75231, Paris Cedex 5, France
| | - Anne-Claire Fabre
- UMR 7179 C.N.R.S/M.N.H.N., 57 rue Cuvier, Case postale 55, 75231, Paris Cedex 5, France
- Department of Evolutionary Anthropology, Duke University, Durham, North Carolina, 27708, USA
| | - Christine E. Wall
- Department of Evolutionary Anthropology, Duke University, Durham, North Carolina, 27708, USA
| | - David Brewer
- Duke Lemur Center, Durham, North Carolina, 27705, USA
| | - Erin Ehmke
- Duke Lemur Center, Durham, North Carolina, 27705, USA
| | - David Haring
- Duke Lemur Center, Durham, North Carolina, 27705, USA
| | - Erin Shaw
- Duke Lemur Center, Durham, North Carolina, 27705, USA
| | - Kay Welser
- Duke Lemur Center, Durham, North Carolina, 27705, USA
| | - Emmanuelle Pouydebat
- UMR 7179 C.N.R.S/M.N.H.N., 57 rue Cuvier, Case postale 55, 75231, Paris Cedex 5, France
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24
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Cibot M, Krief S, Philippon J, Couchoud P, Seguya A, Pouydebat E. Feeding Consequences of Hand and Foot Disability in Wild Adult Chimpanzees (Pan troglodytes schweinfurthii). INT J PRIMATOL 2016. [DOI: 10.1007/s10764-016-9914-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Hutson JD, Hutson KN. An Investigation of the Locomotor Function of Therian Forearm Pronation Provides Renewed Support for an Arboreal, Chameleon-like Evolutionary Stage. J MAMM EVOL 2016. [DOI: 10.1007/s10914-016-9341-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Fragaszy DM, Crast J. Functions of the Hand in Primates. DEVELOPMENTS IN PRIMATOLOGY: PROGRESS AND PROSPECTS 2016. [DOI: 10.1007/978-1-4939-3646-5_12] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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27
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Patel BA, Wallace IJ, Boyer DM, Granatosky MC, Larson SG, Stern JT. Distinct functional roles of primate grasping hands and feet during arboreal quadrupedal locomotion. J Hum Evol 2015; 88:79-84. [DOI: 10.1016/j.jhevol.2015.09.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 02/06/2023]
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28
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Thomas P, Pouydebat E, Brazidec ML, Aujard F, Herrel A. Determinants of pull strength in captive grey mouse lemurs. J Zool (1987) 2015. [DOI: 10.1111/jzo.12292] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- P. Thomas
- Département de Biologie; Master Biosciences; ENS de Lyon; Lyon France
- Département d'Ecologie et de Gestion de la Biodiversité; UMR 7179 CNRS/MNHN; Paris Cedex 5 France
| | - E. Pouydebat
- Département d'Ecologie et de Gestion de la Biodiversité; UMR 7179 CNRS/MNHN; Paris Cedex 5 France
| | - M. L. Brazidec
- Département d'Ecologie et de Gestion de la Biodiversité; UMR 7179 CNRS/MNHN; Paris Cedex 5 France
| | - F. Aujard
- Département d'Ecologie et de Gestion de la Biodiversité; UMR 7179 CNRS/MNHN; Paris Cedex 5 France
| | - A. Herrel
- Département d'Ecologie et de Gestion de la Biodiversité; UMR 7179 CNRS/MNHN; Paris Cedex 5 France
- Evolutionary Morphology of Vertebrates; Ghent University; Ghent Belgium
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29
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Substrate Diameter and Orientation in the Context of Food Type in the Gray Mouse Lemur, Microcebus murinus: Implications for the Origins of Grasping in Primates. INT J PRIMATOL 2015. [DOI: 10.1007/s10764-015-9844-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Pouydebat E, Borel A, Chotard H, Fragaszy D. Hand preference in fast-moving versus slow-moving actions in capuchin, Sapajus spp., and squirrel monkeys, Saimiri sciureus. Anim Behav 2014. [DOI: 10.1016/j.anbehav.2014.09.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Brunon A, Bovet D, Bourgeois A, Pouydebat E. Motivation and manipulation capacities of the blue and yellow macaw and the tufted capuchin: A comparative approach. Behav Processes 2014; 107:1-14. [DOI: 10.1016/j.beproc.2014.06.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 06/01/2014] [Accepted: 06/06/2014] [Indexed: 10/25/2022]
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32
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33
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How posture affects macaques’ reach-to-grasp movements. Exp Brain Res 2013; 232:919-25. [DOI: 10.1007/s00221-013-3804-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 11/29/2013] [Indexed: 10/25/2022]
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