Zobrazeno 1 - 10 of 118 pro vyhledávání: '"M A R, Koehl"'
1
Akademický článek
Ecological biomechanics of damage to macroalgae
Autor: Nicholas P. Burnett, M. A. R. Koehl
Publikováno v: Frontiers in Plant Science, Vol 13 (2022)
Macroalgae provide food and habitat to a diversity of organisms in marine systems, so structural damage and breakage of thallus tissue can have important ecological consequences for the composition and dynamics of marine communities. Common sources o
Externí odkaz: https://doaj.org/article/25c30aeca7a14e7193e5a5bedcb1c689
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2
Akademický článek
Finding patches in a heterogeneous aquatic environment: pH‐taxis by the dispersal stage of choanoflagellates
Autor: Gastón L. Miño, M. A. R. Koehl, Nicole King, Roman Stocker
Publikováno v: Limnology and Oceanography Letters, Vol 2, Iss 2, Pp 37-46 (2017)
Abstract Microbial eukaryotes that feed on bacteria are critical links in aquatic food webs. We used the choanoflagellate Salpingoeca rosetta, whose life history includes fast‐ and slow‐swimming unicellular forms and multicellular colonies, to st
Externí odkaz: https://doaj.org/article/85b5a82fd8c6418e8115ddb0e8eb58d0
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3
Akademický článek
The Scales That Limit: The Physical Boundaries of Evolution
Autor: Christopher P. Kempes, M. A. R. Koehl, Geoffrey B. West
Publikováno v: Frontiers in Ecology and Evolution, Vol 7 (2019)
Organisms are subject to the laws of physics, so the process of evolution by genetic variation and natural selection is constrained by these fundamental laws. Classic and recent studies of the biophysical limits facing organisms have shown how fundam
Externí odkaz: https://doaj.org/article/0ba75ad16a2348838996ac6c2a56bb8d
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4
Akademický článek
Effect of Seagrass on Current Speed: Importance of Flexibility vs. Shoot Density
Autor: Mark S. Fonseca, James W. Fourqurean, M. A. R. Koehl
Publikováno v: Frontiers in Marine Science, Vol 6 (2019)
Water flow through seagrass beds transports nutrients, affects sediment stability and chemistry, and imposes hydrodynamic forces on shoots that alter canopy configuration. Past studies done under diverse conditions yielded conflicting results about t
Externí odkaz: https://doaj.org/article/85695077814c4508b8591df6fe708961
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5
Of corpses, ghosts and mirages: biomechanical consequences of morphology depend on the environment
Autor: M. A. R. Koehl
Publikováno v: Journal of Experimental Biology. 226
Organisms are subject to the laws of physics, so comparative biomechanics is a powerful approach for identifying basic principles that apply across taxa of how morphology affects performance of mechanical functions such as locomotion, feeding or resi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::28a0f35160228611fb00bf7cc8628a70
https://doi.org/10.1242/jeb.245442
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6
Age affects the strain‐rate dependence of mechanical properties of kelp tissues
Autor: Nicholas P. Burnett, M. A. R. Koehl
Publikováno v: American Journal of Botany. 108:769-776
Premise The resistance of macroalgae to hydrodynamic forces imposed by ambient water motion depends in part on the mechanical properties of their tissues. In wave-swept habitats, tissues are stretched (strained) at different rates as hydrodynamic for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56639aaf8315000eeccc207c96b5ba52
https://doi.org/10.1002/ajb2.1662
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7
How kelp in drag lose their ruffles: environmental cues, growth kinematics, and mechanical constraints govern curvature
Autor: Wendy K. Silk, M. A. R. Koehl
Publikováno v: Journal of Experimental Botany. 72:3677-3687
We reveal how patterns of growth in response to environmental cues can produce curvature in biological structures by setting up mechanical stresses that cause elastic buckling. Nereocystis luetkeana are nearshore kelp with wide ruffled blades that mi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c62361a35b65283c02169307e16a5a1
https://doi.org/10.1093/jxb/erab111
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10
The effect of external flow on the feeding currents of sessile microorganisms
Autor: Matthieu Baron, Thomas Hurot, Emily E. Riley, Rachel E. Pepper, M. A. R. Koehl, Thomas Kiørboe, Anders Andersen, Lasse Tor Nielsen
Publikováno v: Pepper, R E, Riley, E E, Baron, M, Hurot, T, Nielsen, L T, Koehl, M A R, Kiørboe, T & Andersen, A 2021, ' The effect of external flow on the feeding currents of sessile microorganisms ', Journal of the Royal Society. Interface, vol. 18, no. 175, 20200953 . https://doi.org/10.1098/rsif.2020.0953
Journal of the Royal Society. Interface
J R Soc Interface
Microscopic sessile suspension feeders live attached to surfaces and, by consuming bacteria-sized prey and by being consumed, they form an important part of aquatic ecosystems. Their environmental impact is mediated by their feeding rate, which depen
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::571cc0ce6b4fbbbac472df5d974a20e3
https://doi.org/10.1098/rsif.2020.0953
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