R
Richard L. Essner
Researcher at Southern Illinois University Edwardsville
Publications - 14
Citations - 244
Richard L. Essner is an academic researcher from Southern Illinois University Edwardsville. The author has contributed to research in topics: Habitat & Jumping. The author has an hindex of 7, co-authored 13 publications receiving 205 citations. Previous affiliations of Richard L. Essner include Ohio University & University of Illinois at Urbana–Champaign.
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Journal ArticleDOI
Three-dimensional launch kinematics in leaping, parachuting and gliding squirrels.
TL;DR: The absence of significant differences in hindlimb kinematics indicates that propulsion is essentially identical in leaping, parachuting and gliding squirrels.
Journal ArticleDOI
Landing in basal frogs: evidence of saltational patterns in the evolution of anuran locomotion.
TL;DR: The unique behavior of leiopelmatids shows that frogs evolved jumping before they perfected landing, and an inability to rapidly cycle the limbs may provide a functional explanation for the absence of synchronous swimming in leiopalmatids.
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Morphology, locomotor behaviour and microhabitat use in North American squirrels
TL;DR: This study examines morphology, locomotor behaviour and microhabitat use under controlled laboratory conditions in three North American sciurids: eastern chipmunk Tamias striatus, red squirrel Tamiasciurus hudsonicus and southern flying squirrel Glaucomys volans.
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Functional evolution of jumping in frogs: Interspecific differences in take-off and landing
Stephen M. Reilly,Stéphane J. Montuelle,André Schmidt,Cornelia Krause,Emily Naylor,Emily Naylor,Richard L. Essner +6 more
TL;DR: The first comparative description of the entire process of jumping in frogs is provided, including the first description and comparison of kinematics of the hindlimbs, forelimbs and body during take‐off and landing in relation to ground reaction forces in four frog species spanning the frog phylogeny.
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Conquering the world in leaps and bounds: hopping locomotion in toads is actually bounding
Stephen M. Reilly,Stéphane J. Montuelle,André Schmidt,Emily Naylor,Michael E. Jorgensen,Lewis G. Halsey,Richard L. Essner +6 more
TL;DR: It is found that bouts of repeated hopping are actually a series of bounding strides where toads rotate on their hands and then land on their extended their feet and jump again without stopping, the first case of the common use of a bounding gait outside of mammals.