Dr Mark Johnson

Dr Mark Johnson
Senior Research Fellow

source: symbiosis

Research Overview:

My research is centered on developing high-resolution methods for studying animals in the wild, and interpreting the data from these. I am especially interested in sound production, foraging, locomotion, and echolocation in marine mammals. Aquatic animals are challenging to study at this level of detail because they spend so much of their lives out of sight. Drawing from my background in electronic engineering, my approach is to create miniature data logging platforms combining multiple synchronized sensors to sample the actions of marine animals. Because sound travels much further than light underwater, high bandwidth sound and movement sensing tags (DTags) have proven to be particularly useful for studying whales and dolphins. These tags have now been applied to more than 20 species of marine mammals to study a broad range of natural behaviours as well as behavioural responses to human-sourced sound.


20 (of 93 /dk/atira/pure/researchoutput/status/published available) for mj26 (source: University of St Andrews PURE)
Please click title of any item for full details

An autonomous hydrophone array to study the acoustic ecology of deep-water toothed whales Chloe Elizabeth Malinka, John Atkins, Mark Johnson, Pernille Tønnesen, Charlotte Dunn, Natacha Aguilar de Soto, Peter Teglberg Madsen
Deep Sea Research Part I: Oceanographic Research Papers 2020 vol. 158
COVID-19 lockdown allows researchers to quantify the effects of human activity on wildlife Christian Rutz, Matthias-Claudio Loretto, Amanda E. Bates, Sarah C. Davidson, Carlos M. Duarte, Walter Jetz, Mark Johnson, Akiko Kato, Roland Kays, Thomas Mueller, Richard B. Primack, Yan Ropert-Coudert, Marlee A. Tucker, Martin Wikelski, Francesca Cagnacci
Nature Ecology and Evolution 2020
Energy compensation and received echo level dynamics in constant-frequency bats during active target approaches Laura Stidsholt, Rolf Müller, K. Beedholm, Hui Ma, Mark Johnson, P.T. Madsen
Journal of Experimental Biology 2020 vol. 223
Fear of killer whales drives extreme synchrony in deep diving beaked whales Natacha Aguilar de Soto, Fleur Visser, Peter Lloyd Tyack, Jesús Alcazar, Graeme Douglas Ruxton, Patricia Arranz, Peter T. Madsen, Mark Johnson
Scientific Reports 2020 vol. 10
Flash and grab Christophe Guinet, Claudio Campagna, Julieta Campagna, Peter Lloyd Tyack, Mark Johnson
Journal of Experimental Biology 2020 vol. 223
The long-range echo scene of the sperm whale biosonar Pernille Tønnesen, Cláudia Oliveira, Mark Johnson, P.T. Madsen
Biology Letters 2020 vol. 16
A 2.6-gram sound and movement tag for studying the acoustic scene and kinematics of echolocating bats Laura Stidsholt, Mark Johnson, Kristian Beedholm, Lasse Jakobsen, Kathrin Kugler, Signe Brinkløv, Angeles Salles, Cynthia F. Moss, Peter Teglberg Madsen
Methods in Ecology and Evolution 2019 vol. 10 pp. 48-58
A miniature biomimetic sonar and movement tag to study the biotic environment and predator-prey interactions in aquatic animals Christophe Guinet, Peter T. Madsen, Mark Johnson
Deep Sea Research Part I: Oceanographic Research Papers 2019 vol. 148 pp. 1-11
Advances in research on the impacts of anti-submarine sonar on beaked whales Y. Bernaldo De Quirós, A. Fernandez, R. W. Baird, R. L. Brownell, Natacha Aguilar de Soto, D. Allen, M. Arbelo, M. Arregui, A. Costidis, A. Fahlman, A. Frantzis, F. Gulland, M. Iñíguez, Mark Johnson, A. Komnenou, H. Koopman, D. A. Pabst, W. D. Roe, E. Sierra, M. Tejedor, G. Schorr
Proceedings of the Royal Society B: Biological Sciences 2019 vol. 286
Best practice guidelines for cetacean tagging Russel D. Andrews, Robin W. Baird, John Calambokidis, Caroline E. C. Goertz, Frances M. D. Gulland, Mads-Pieter Heide-Jorgensen, Sascha Kate Hooker, Mark Johnson, Bruce Mate, Yoko Mitani, Douglas P. Nowacek, Kylie Owen, Lori T. Quakenbush, Stephen Raverty, Jooke Robbins, Gregory S. Schorr, Olga V. Shpak, Forrest I. Townsend, Marcela Uhart, Randall S. Wells, Alexandre N. Zerbini
Journal of Cetacean Research and Management 2019 vol. 20 pp. 27-66
Deep-diving pilot whales make cheap, but powerful, echolocation clicks with 50 µL of air Ilias Foskolos, Natacha Aguilar de Soto, Peter Teglberg Madsen, Mark Johnson
Scientific Reports 2019 vol. 9
Dolphin echolocation behaviour during active long-range target approaches Michael Ladegaard, Jason Mulsow, Dorian S. Houser, Frantz Jensen, Mark Johnson, P.T. Madsen, James J. Finneran
Journal of Experimental Biology 2019 vol. 222
Recreational vessels without Automatic Identification System (AIS) dominate anthropogenic noise contributions to a shallow water soundscape Line Hermannsen, Lonnie Mikkelsen, Jakob Tougaard, Kristian Beedholm, Mark Johnson, Peter T. Madsen
Scientific Reports 2019 vol. 9
Towards a macroscope Maria Dornelas, Elizabeth M. P. Madin, Michael Bunce, Joseph D. DiBattista, Mark Johnson, Joshua S. Madin, Anne Magurran, Brian J. McGill, Nathalie Pettorelli, Oscar Pizarro, Stefan B. Williams, Marten Winter, Amanda E. Bates
Global Ecology and Biogeography 2019 vol. 28 pp. 1937-1948
Click communication in wild harbour porpoises (Phocoena phocoena) P. M. Sørensen, D. M. Wisniewska, F. H. Jensen, Mark Johnson, J. Teilmann, P. T. Madsen
Scientific Reports 2018 vol. 8
Dive heart rate in harbour porpoises is influenced by exercise and expectations Brigitte McDonald, Mark Johnson, Peter Madsen
Journal of Experimental Biology 2018 vol. 221
First-year sperm whale calves echolocate and perform long, deep dives Pernille Tønnesen, Shane Gero, Michael Ladegaard, Mark Johnson, P. T. Madsen
Behavioral Ecology and Sociobiology 2018 vol. 72
High field metabolic rates of wild harbour porpoises Laia Rojano-Doñate, Birgitte I. McDonald, Danuta M. Wisniewska, Mark Johnson, Jonas Teilmann, Magnus Wahlberg, Jakob Højer-Kristensen, Peter T. Madsen
Journal of Experimental Biology 2018 vol. 221
High rates of vessel noise disrupt foraging in wild harbour porpoises (Phocoena phocoena) Danuta Maria Wisniewska, Mark Johnson, Jonas Teilmann, Ursula Siebert, Anders Galatius, Rune Dietz, Peter Teglberg Madsen
Proceedings of the Royal Society B: Biological Sciences 2018 vol. 285
Narrow acoustic field of view drives frequency scaling in toothed whale biosonar Frantz Jensen, Mark Johnson, Michael Ladegaard, Danuta M. Wisniewska, Peter T. Madsen
Current Biology 2018 vol. 28 pp. 3878-3885

Contact Details:

Dr Mark Johnson
Scottish Oceans Institute
East Sands
University of St Andrews
St Andrews
KY16 8LB

tel: 01334 462624
fax: 01334 463443


Sound Tags
Sea Mammal Research Unit
School of Biology
Scottish Oceans Institute

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