Evolution of forelimb movement patterns for prey manipulation in anurans

Gray, Lucie A.; O’Reilly, James C.; Nishikawa, Kiisa C.

doi:10.1002/(sici)1097-010x(19970415)277:6<417::aid-jez1>3.0.co;2-r

Cited by 71 publications

(104 citation statements)

References 12 publications

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“…Transition from mechanical pulling to inertial elongation could have involved, among others, a decrease in relative tongue mass (Nishikawa, 2000). Lepidobatrachus is mentioned as a mechanical puller that protrudes its tongue during terrestrial feeding (Nishikawa, 2000;O'Reilly et al, 2002), but during aquatic feeding uses only forearm scooping to capture prey (Gray et al, 1997;O'Reilly et al, 2002). Reduction of tongue mass in Chacophrys and Lepidobatrachus could be related to the evolution toward terrestrial feeding that diverges later within the clade formed by Chacophrys þ Lepidobatrachus with changes in the hyoglossal apparatus of Lepidobatrachus in which terrestrial feeding is lost (but not the capability).…”

Section: The Hyoglossal Apparatus In the Frog Lepidobatrachusmentioning

confidence: 99%

“…O'Reilly et al, (2002) discussed scenarios for the evolution of aquatic feeding in adult frogs, from which, based on distribution of aquatic behavior alone, it is plausible that aquatic foraging is a shared primitive character among many basal frogs. Forearm scooping to capture prey in water, as it was observed in Bombina, Lepidobatrachus, Calyptocephalella, Rana, Pipa, and Xenopus (Gray et al, 1997), appears to be an ancestral behavior used for prey transport, while tongue protrusion, jaw bending, and head flexion have evolved for terrestrial feeding (Nishikawa, 2000).…”

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confidence: 99%

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Hyoid Skeleton, Its Related Muscles, and Morphological Novelties in the Frog Lepidobatrachus (Anura, Ceratophryidae)

Fabrezi

Lobo

2009

The Anatomical Record

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Many traits of the skull of ceratophryines are related to the capture of large prey independently of aquatic or terrestrial feeding. Herein, detailed descriptions of the development of hyoid skeleton and the anatomy of muscles responsible for hyoid and tongue movements in Lepidobatrachus laevis and L. llanensis are provided and compared with those of other neobatrachians. The aquatic Lepidobatrachus has special features in its hyoid skeleton that integrates a set of derived features convergent with the conditions observed in non-neobatrachian anurans and morphological novelties (e.g., dorsal dermal hyoid ossification) that deviate from the generalized pattern found in most frogs. Further, reduction of fibers of muscles of buccal floor, reduction or loss of hyoid muscles (m. geniohyoideus rama lateralis, anterior pair of m. petrohyoideus posteriores), small tongue, and simplified tongue muscles are also morphological deviations from the pattern of terrestrial ceratophryines, and other aquatic ceratophryids (e.g., Telmatobius) that seem to be related to feeding underwater. The historical derived features shared with Chacophrys and Ceratophrys involved in megalophagy are conserved in Lepidobatrachus and morphological changes in the hyoglossal apparatus define a unique functional complex among anurans.

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Section: The Hyoglossal Apparatus In the Frog Lepidobatrachusmentioning

confidence: 99%

mentioning

confidence: 99%

Hyoid Skeleton, Its Related Muscles, and Morphological Novelties in the Frog Lepidobatrachus (Anura, Ceratophryidae)

Fabrezi

Lobo

2009

The Anatomical Record

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“…During feeding, they are used to manipulate and bring prey towards the mouth (Gray et al, 1997) and during wiping behavior, forelimb movements help to protect the skin by Anurans use a saltatorial (jumping) mode of locomotion. A jumping cycle can be divided into four subphases: propulsion, flight, landing and recovery.…”

Section: Introductionmentioning

confidence: 99%

Take-off and landing forces in jumping frogs

Nauwelaerts

Aerts

2006

Journal of Experimental Biology

125

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SUMMARY Anurans use a saltatorial (jumping) mode of locomotion. A jumping cycle can be divided into four subphases: propulsion, flight, landing and recovery. We studied the landing phase during locomotion in Rana esculenta by measuring the ground reaction forces during propulsion and landing over a range of distances. Landing performance affects locomotor ability in jumping frogs. Landing and recovery together take up one third of the locomotor cycle. Peak landing forces are on average almost three times larger than propulsive forces. The forelimbs appear to be fully extended when they make contact with the substrate and absorb the first impact peak. The height of this peak varies depending on arm positioning and jumping distance. Since the stiffness of the arms stays constant over the full jumping range, it is possible that this is a limiting factor in the ability of the forelimbs to work as dampers. A spring-dashpot model is used to model the effect of arm angle at touch down. Damping during landing is performed by placing the forelimbs at an optimal angle to cancel frictional forces effectively.

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“…Precision grip is thought to be used during locomotion and in the manipulation of some food items. [2] Adductor pollicis (ADP) is described as having oblique and transverse heads. The oblique head arises from the capitate bone and the bases of the second and third metacarpal bones.…”

Section: Introductionmentioning

confidence: 99%

A rare variant innervation of adductor pollicis muscle from median nerve in an adult cadaver in middle east: a case report

Chaudhary¹

2017

Int j curr adv res

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Evolution of forelimb movement patterns for prey manipulation in anurans

Cited by 71 publications

References 12 publications

Hyoid Skeleton, Its Related Muscles, and Morphological Novelties in the Frog Lepidobatrachus (Anura, Ceratophryidae)

Hyoid Skeleton, Its Related Muscles, and Morphological Novelties in the Frog Lepidobatrachus (Anura, Ceratophryidae)

Take-off and landing forces in jumping frogs

A rare variant innervation of adductor pollicis muscle from median nerve in an adult cadaver in middle east: a case report

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