David William Johnston
Associate Professor of the Practice of Marine Conservation Ecology
Dr. David W. Johnston is an Associate Professor of the Practice of Marine Conservation & Ecology at Duke University and Director of the Duke Marine Robotics and Remote Sensing Lab. Johnston holds a PhD from Duke University and received post-doctoral training at the Monterey Bay Aquarium Research Institute in California. His professional experience ranges from leading research programs for NOAA to working as an ecologist within the NGO sector. Johnston’s research program focuses on the ecology and habitat needs of marine vertebrates in relation to pressing conservation issues such as climate change, habitat loss, ocean noise, incidental mortality and overharvests. He has published extensively in top journals in the fields of conservation biology, oceanography, marine ecology and marine policy on research that spans tropical, temperate and polar biomes. Johnston is an innovative teacher with experience in both large and small classrooms, and is skilled in Massive Open Online Courses, field-based learning situations, data visualization and digital textbook development and publication.
Current Appointments & Affiliations
- Associate Professor of the Practice of Marine Conservation Ecology, Marine Science and Conservation, Nicholas School of the Environment 2017
Contact Information
- 315/BOOKOUT/DUKE Marine Lab, 135 Duke Marine Lab Rd., Beaufort, NC 28516
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david.johnston@duke.edu
(252) 504-7593
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Johnston Lab
- Background
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Education, Training, & Certifications
- Ph.D., Duke University 2004
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Duke Appointment History
- Assistant Professor of the Practice of Marine Conservation Ecology, Marine Science and Conservation, Nicholas School of the Environment 2013 - 2017
- Recognition
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In the News
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AUG 27, 2019 Duke Global -
JAN 19, 2018 Nicholas School of the Environment -
JUN 14, 2017 Nicholas School of the Environment -
MAY 22, 2017 Duke Stories -
MAR 15, 2017 Duke Magazine -
JUL 8, 2016 Public Radio East -
MAY 31, 2016 CBS News, AP -
MAY 25, 2016 Motherboard -
MAY 24, 2016 Triangle Business Journal -
MAY 24, 2016 Gizmag -
MAY 23, 2016 -
APR 19, 2016 Pacific Standard -
AUG 17, 2015 -
JUL 10, 2015 WCTI-New Bern -
JUN 19, 2015 Public Radio East -
MAR 26, 2015 National Geographic -
MAR 18, 2015 -
DEC 17, 2014
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- Expertise
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Global Scholarship
- Research
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Selected Grants
- Monitoring hurricane impacts and understanding coastal ecosystem resilience using deep learning and a tip-and-cue approach to integrate satellites and drones 2019 - 2022
- Region-wide integration of UAS technology into DOD natural resource management through demonstration, coordination, training, and outfitting. 2019 - 2022
- Enhancing the capability and efficiency of DoD land management by using commercial unmanned aerial vehicles to assess the impacts of fires and coastal storms awarded by Department of Defense 2018 - 2021
- Mapping Intertidal Oyster Reefs in Apalachicola Bay awarded by Florida State University 2020
- Rapid, High-Resolution Mapping of Coastal Strategic Habitats 2017 - 2020
- Collaborative Research: Foraging behavior and ecological role of the least studied Antarctic krill predator, the Antarctic krill predator, the Antarctic minke whale (Balaenoptera bonaerensis) awarded by National Science Foundation 2017 - 2020
- LTER Palmer, Antarctica (PAL): Land-Shelf-Ocean Connectivity, Ecosystem Resilience and Transformation in a Sea-Ice Influenced Pelagic Ecosystem awarded by University of California, Santa Cruz 2017 - 2019
- Developing rapid, cost-effective methods for evaluating coastal biodiversity and resilience awarded by World Wildlife Fund 2019
- Ecological Barcodes Scanning from UAVs 2018 - 2019
- UAS Imagery 2018
- Community-based Marine Debris Removal at Harkers Island, NC 2017 - 2018
- Unoccupied aircraft survey imagery of marine mammals at Otter Island, AK 2017 - 2018
- Assessing a Novel Method for Geolocating Subtidal Survey Transects 2017 - 2018
- LTER Palmer, Antartica (PAL: Land-Shelf-Ocean Connectivity, Ecosystem Resilience and Transformation in a Sea-Ice Influenced Pelagic Ecosystem awarded by Oregon State University 2014 - 2018
- Monitoring coastal and submerged habitats of the Cape Lookout National Seashore using Unoccupied Aircraft Systems 2016 - 2018
- Discovering how sand tiger sharks rely on shipwrecks of the "Graveyard of the Atlantic" for key habitat 2017 - 2018
- Assessing cycles of geophysical disturbance within the Rachel Carson National Estuarine Research Reserve (RC NERR) using Unmanned Aircraft Systems (UAS) 2017 - 2018
- Indices of oyster reef health using UAS remote sensing imagery within the North Carolina central coastal region awarded by North Carolina State University 2017 - 2018
- Using unmanned aerial systems to inform marine debris removal strategies and assess post-removal habitat change in the North Carolina National Estuarine Research Reserve 2016 - 2018
- Integrating the History and Ecology of Shipwrecks with On-Demand Remote Sensing: Digital Conservation of the Ghost Fleet of Mallows Bay 2017
- A marine Unoccupied Aircraft Systems (UAS) facility: Building capacity for high-resolution remote sensing and analysis of marine and coastal ecosystems awarded by National Science Foundation 2016 - 2017
- LTER Palmer, Antartica (PAL): Land Shelf Ocean Connectivity, Ecosystem Resilience and Transformation awarded by Oregon State University 2014 - 2017
- Unmanned aircraft surveys of gray seals at Muskeget Island, January 2015 2016 - 2017
- Usability Assessments of UAV technology for TNC missions in the Asia-Pacific Region 2016
- Delphinid Cetaceans: Quantifying Behavioral Ecology and Response to Predators Using a Multi-Species Approach 2011 - 2016
- Reconstructing past coastal ecology of the Newport River Estuary from historical data 2014 - 2016
- A Digital Guide for Invertebrates of North Carolina 2013 - 2014
- RAPID: Linking the movement patterns and foraging behavior of humpback whales to their prey across multiple spatial scales within the LTER study region awarded by National Science Foundation 2012 - 2013
- Quantifying the effects of human interactions on spinner dolphins in resting bays in Hawaii 2009 - 2013
- Using marine mammal strandings and observer data to estimate life history parameters and assess demographic impacts of marine fisheries on odontocete populations in the northwestern Atlantic Ocean 2009 - 2013
- Augmenting Studies of the Effects of Human Interactions on Spinner Dolphins in Resting Bays in Hawaii 2010 - 2012
- Prey Fields and habitats of deep diving odontocetes: 3D characterization and modeling of beaked and sperm whale foraging areas in the Tongue of the Ocean awarded by Office of Naval Research 2008 - 2012
- Quantifying the effects of human interactions on spinner dolphins in resting bays in Hawaii, and assessing the effectiveness of time area closures as a proposed mitigation approach. 2010 - 2011
- North Pacific beaked whale habitat analysis using Platforms of Opportunity (POP) data 2009 - 2010
- Using predictive habitat modeling to identify potential calving habitats of North Pacific right whales in the Pacific Islands Region 2007 - 2009
- Publications & Artistic Works
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Selected Publications
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Academic Articles
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Straub, J. A., A. B. Rodriguez, R. A. Luettich, L. J. Moore, M. Itzkin, J. T. Ridge, A. C. Seymour, D. W. Johnston, and E. J. Theuerkauf. “The role of beach state and the timing of pre-storm surveys in determining the accuracy of storm impact assessments.” Marine Geology 425 (July 1, 2020). https://doi.org/10.1016/j.margeo.2020.106201.Full Text
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Moxley, J. H., G. Skomal, J. Chisholm, P. Halpin, and D. W. Johnston. “Daily and seasonal movements of Cape Cod gray seals vary with predation risk.” Marine Ecology Progress Series 644 (June 25, 2020): 215–28. https://doi.org/10.3354/meps13346.Full Text
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Barnas, A. F., D. Chabot, A. J. Hodgson, D. W. Johnston, D. M. Bird, and S. N. Ellis-Felege. “A standardized protocol for reporting methods when using drones for wildlife research.” Journal of Unmanned Vehicle Systems 8, no. 2 (January 1, 2020): 89–98. https://doi.org/10.1139/juvs-2019-0011.Full Text
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Benavides, M. T., F. J. Fodrie, and D. W. Johnston. “Shark detection probability from aerial drone surveys within a temperate estuary.” Journal of Unmanned Vehicle Systems 8, no. 1 (January 1, 2020): 44–56. https://doi.org/10.1139/juvs-2019-0002.Full Text
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Goldbogen, J. A., D. E. Cade, D. M. Wisniewska, J. Potvin, P. S. Segre, M. S. Savoca, E. L. Hazen, et al. “Why whales are big but not bigger: Physiological drivers and ecological limits in the age of ocean giants.” Science (New York, N.Y.) 366, no. 6471 (December 2019): 1367–72. https://doi.org/10.1126/science.aax9044.Full Text
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Gough, William T., Paolo S. Segre, K. C. Bierlich, David E. Cade, Jean Potvin, Frank E. Fish, Julian Dale, et al. “Scaling of swimming performance in baleen whales.” The Journal of Experimental Biology 222, no. Pt 20 (October 23, 2019). https://doi.org/10.1242/jeb.204172.Full Text
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Windle, A. E., S. K. Poulin, D. W. Johnston, and J. T. Ridge. “Rapid and accurate monitoring of intertidal Oyster Reef Habitat using unoccupied aircraft systems and structure from motion.” Remote Sensing 11, no. 20 (October 1, 2019). https://doi.org/10.3390/rs11202394.Full Text
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Gray, P. C., K. C. Bierlich, S. A. Mantell, A. S. Friedlaender, J. A. Goldbogen, and D. W. Johnston. “Drones and convolutional neural networks facilitate automated and accurate cetacean species identification and photogrammetry.” Methods in Ecology and Evolution 10, no. 9 (September 1, 2019): 1490–1500. https://doi.org/10.1111/2041-210X.13246.Full Text
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Seymour, A. C., J. T. Ridge, E. Newton, A. B. Rodriguez, and D. W. Johnston. “Geomorphic response of inlet barrier islands to storms.” Geomorphology 339 (August 15, 2019): 127–40. https://doi.org/10.1016/j.geomorph.2019.04.021.Full Text
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Gray, P. C., A. B. Fleishman, D. J. Klein, M. W. McKown, V. S. Bézy, K. J. Lohmann, and D. W. Johnston. “A convolutional neural network for detecting sea turtles in drone imagery.” Methods in Ecology and Evolution 10, no. 3 (March 1, 2019): 345–55. https://doi.org/10.1111/2041-210X.13132.Full Text
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Hernandez, K. M., A. L. Bogomolni, J. H. Moxley, G. T. Waring, R. A. Digiovanni, M. O. Hammill, D. W. Johnston, L. Sette, and M. J. Polito. “Seasonal variability and individual consistency in gray seal (Halichoerus grypus) isotopic niches.” Canadian Journal of Zoology 97, no. 11 (January 1, 2019): 1071–77. https://doi.org/10.1139/cjz-2019-0032.Full Text
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Johnston, David W. “Unoccupied Aircraft Systems in Marine Science and Conservation.” Annual Review of Marine Science 11 (January 2019): 439–63. https://doi.org/10.1146/annurev-marine-010318-095323.Full Text
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Nowlin, M., S. Roady, E. Newton, and D. Johnston. “Applying Unoccupied Aircraft Systems to Study Human Behavior in Marine Science and Conservation Programs.” Frontiers in Marine Science 6 (2019): 1–11.
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Windle, A. E., D. Shane Hooley, and D. W. Johnston. “Robotic vehicles enable high-resolution light pollution sampling of sea turtle nesting beaches.” Frontiers in Marine Science 5, no. DEC (December 20, 2018). https://doi.org/10.3389/fmars.2018.00493.Full Text
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Tyne, Julian A., Fredrik Christiansen, Heather L. Heenehan, David W. Johnston, and Lars Bejder. “Chronic exposure of Hawaii Island spinner dolphins (Stenella longirostris) to human activities.” Royal Society Open Science 5, no. 10 (October 24, 2018): 171506. https://doi.org/10.1098/rsos.171506.Full Text
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Gray, P. C., J. T. Ridge, S. K. Poulin, A. C. Seymour, A. M. Schwantes, J. J. Swenson, and D. W. Johnston. “Integrating drone imagery into high resolution satellite remote sensing assessments of estuarine environments.” Remote Sensing 10, no. 8 (August 1, 2018). https://doi.org/10.3390/rs10081257.Full Text
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Soulen, Brianne K., Barney J. Venables, David W. Johnston, and Aaron P. Roberts. “Accumulation of PBDEs in stranded harp (Pagophilus groenlandicus) and hooded seals (Cystophora cristata) from the Northeastern United States.” Marine Environmental Research 138 (July 2018): 96–101. https://doi.org/10.1016/j.marenvres.2018.04.008.Full Text
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Pallin, Logan J., C Scott Baker, Debbie Steel, Nicholas M. Kellar, Jooke Robbins, David W. Johnston, Doug P. Nowacek, Andrew J. Read, and Ari S. Friedlaender. “High pregnancy rates in humpback whales (Megaptera novaeangliae) around the Western Antarctic Peninsula, evidence of a rapidly growing population.” Royal Society Open Science 5, no. 5 (May 2, 2018): 180017. https://doi.org/10.1098/rsos.180017.Full Text
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Seymour, A. C., J. T. Ridge, A. B. Rodriguez, E. Newton, J. Dale, and D. W. Johnston. “Deploying Fixed Wing Unoccupied Aerial Systems (UAS) for Coastal Morphology Assessment and Management.” Journal of Coastal Research 34, no. 3 (May 1, 2018): 704–17. https://doi.org/10.2112/JCOASTRES-D-17-00088.1.Full Text
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Sykora-Bodie, Seth T., Vanessa Bezy, David W. Johnston, Everette Newton, and Kenneth J. Lohmann. “Author Correction: Quantifying Nearshore Sea Turtle Densities: Applications of Unmanned Aerial Systems for Population Assessments.” Scientific Reports 8, no. 1 (April 19, 2018): 6479. https://doi.org/10.1038/s41598-018-24799-w.Full Text Open Access Copy
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Bierlich, K. C., Carolyn Miller, Emelia DeForce, Ari S. Friedlaender, David W. Johnston, and Amy Apprill. “Temporal and Regional Variability in the Skin Microbiome of Humpback Whales along the Western Antarctic Peninsula.” Applied and Environmental Microbiology 84, no. 5 (March 2018). https://doi.org/10.1128/aem.02574-17.Full Text
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Albertson, G. R., A. S. Friedlaender, D. J. Steel, A. Aguayo-Lobo, S. L. Bonatto, S. Caballero, R. Constantine, et al. “Temporal stability and mixed-stock analyses of humpback whales (Megaptera novaeangliae) in the nearshore waters of the Western Antarctic Peninsula.” Polar Biology 41, no. 2 (February 1, 2018): 323–40. https://doi.org/10.1007/s00300-017-2193-1.Full Text
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Arona, Lauren, Julian Dale, Susan G. Heaslip, Michael O. Hammill, and David W. Johnston. “Assessing the disturbance potential of small unoccupied aircraft systems (UAS) on gray seals (Halichoerus grypus) at breeding colonies in Nova Scotia, Canada.” Peerj 6 (January 2018): e4467. https://doi.org/10.7717/peerj.4467.Full Text
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Rees, A. F., L. Avens, K. Ballorain, E. Bevan, A. C. Broderick, R. R. Carthy, M. J. A. Christianen, et al. “The potential of unmanned aerial systems for sea turtle research and conservation: A review and future directions.” Endangered Species Research 35 (January 1, 2018): 81–100. https://doi.org/10.3354/esr00877.Full Text Open Access Copy
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Sykora-Bodie, Seth T., Vanessa Bezy, David W. Johnston, Everette Newton, and Kenneth J. Lohmann. “Quantifying Nearshore Sea Turtle Densities: Applications of Unmanned Aerial Systems for Population Assessments.” Scientific Reports 7, no. 1 (December 18, 2017): 17690. https://doi.org/10.1038/s41598-017-17719-x.Full Text
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Heenehan, Heather L., Sofie M. Van Parijs, Lars Bejder, Julian A. Tyne, Brandon L. Southall, Hugh Southall, and David W. Johnston. “Natural and anthropogenic events influence the soundscapes of four bays on Hawaii Island.” Marine Pollution Bulletin 124, no. 1 (November 2017): 9–20. https://doi.org/10.1016/j.marpolbul.2017.06.065.Full Text
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Moxley, Jerry H., Andrea Bogomolni, Mike O. Hammill, Kathleen M. T. Moore, Michael J. Polito, Lisa Sette, W Brian Sharp, et al. “Google Haul Out: Earth Observation Imagery and Digital Aerial Surveys in Coastal Wildlife Management and Abundance Estimation.” Bioscience 67, no. 8 (August 2017): 760–68. https://doi.org/10.1093/biosci/bix059.Full Text
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Weinstein, B. G., M. Double, N. Gales, D. W. Johnston, and A. S. Friedlaender. “Identifying overlap between humpback whale foraging grounds and the Antarctic krill fishery.” Biological Conservation 210 (June 1, 2017): 184–91. https://doi.org/10.1016/j.biocon.2017.04.014.Full Text
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Heenehan, H. L., S. M. Van Parijs, L. Bejder, J. A. Tyne, and D. W. Johnston. “Differential effects of human activity on Hawaiian spinner dolphins in their resting bays.” Global Ecology and Conservation 10 (April 1, 2017): 60–69. https://doi.org/10.1016/j.gecco.2017.02.003.Full Text
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Seymour, A. C., J. Dale, M. Hammill, P. N. Halpin, and D. W. Johnston. “Automated detection and enumeration of marine wildlife using unmanned aircraft systems (UAS) and thermal imagery.” Scientific Reports 7 (March 24, 2017): 45127. https://doi.org/10.1038/srep45127.Full Text
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Tyne, Julian A., David W. Johnston, Fredrik Christiansen, and Lars Bejder. “Temporally and spatially partitioned behaviours of spinner dolphins: implications for resilience to human disturbance.” Royal Society Open Science 4, no. 1 (January 11, 2017): 160626. https://doi.org/10.1098/rsos.160626.Full Text
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Hammill, Michael O., Julian Dale, Garry B. Stenson, C. denHeyer, J. -. F. Gosselin, and David W. Johnston. “Comparison of methods to estimate grey seal pup production at different colonies.” Dfo Canadian Science Advisory Secretariat Csas Research Document 2010/091, 2017.
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Heenehan, H. L., S. M. Van Parijs, L. Bejder, J. A. Tyne, and D. W. Johnston. “Using acoustics to prioritize management decisions to protect coastal dolphins: A case study using Hawaiian spinner dolphins.” Marine Policy 75 (January 1, 2017): 84–90. https://doi.org/10.1016/j.marpol.2016.10.015.Full Text
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Johnston, David W., David W. JulianDale, Kimberly T. Murray, Kimberly T. ElizabethJosephson, Kimberly T. EverettNewton, and Kimberly T. StephanieWood. “Comparing occupied and unoccupied aircraft surveys of wildlife populations: assessing the gray seal (Halichoerus grypus) breeding colony on Muskeget Island, USA.” Journal of Unmanned Vehicle Systems, 2017.
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Burrows, J. A., D. W. Johnston, J. M. Straley, E. M. Chenoweth, C. Ware, C. Curtice, S. L. De Ruiter, and A. S. Friedlaender. “Prey density and depth affect the fine-scale foraging behavior of humpback whales Megaptera novaeangliae in Sitka Sound, Alaska, USA.” Marine Ecology Progress Series 561 (December 15, 2016): 245–60. https://doi.org/10.3354/meps11906.Full Text
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Tyne, J. A., N. R. Loneragan, D. W. Johnston, K. H. Pollock, R. Williams, and L. Bejder. “Evaluating monitoring methods for cetaceans.” Biological Conservation 201 (September 1, 2016): 252–60. https://doi.org/10.1016/j.biocon.2016.07.024.Full Text
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Puryear, Wendy Blay, Mandy Keogh, Nichola Hill, Jerry Moxley, Elizabeth Josephson, Kimberly Ryan Davis, Chistopher Bandoro, et al. “Prevalence of influenza A virus in live-captured North Atlantic gray seals: a possible wild reservoir.” Emerging Microbes & Infections 5, no. 8 (August 3, 2016): e81. https://doi.org/10.1038/emi.2016.77.Full Text
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Heenehan, Heather L., Julian A. Tyne, Lars Bejder, Sofie M. Van Parijs, and David W. Johnston. “Passive acoustic monitoring of coastally associated Hawaiian spinner dolphins, Stenella longirostris, ground-truthed through visual surveys.” The Journal of the Acoustical Society of America 140, no. 1 (July 2016): 206. https://doi.org/10.1121/1.4955094.Full Text
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Friedlaender, Ari S., David W. Johnston, Reny B. Tyson, Amanda Kaltenberg, Jeremy A. Goldbogen, Alison K. Stimpert, Corrie Curtice, et al. “Multiple-stage decisions in a marine central-place forager.” Royal Society Open Science 3, no. 5 (May 11, 2016): 160043. https://doi.org/10.1098/rsos.160043.Full Text
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Bejder, M., D. W. Johnston, J. Smith, A. Friedlaender, and L. Bejder. “Embracing conservation success of recovering humpback whale populations: Evaluating the case for downlisting their conservation status in Australia.” Marine Policy 66 (April 1, 2016): 137–41. https://doi.org/10.1016/j.marpol.2015.05.007.Full Text
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Roman, Joe, Meagan M. Dunphy-Daly, David W. Johnston, and Andrew J. Read. “Lifting baselines to address the consequences of conservation success.” Trends in Ecology & Evolution 30, no. 6 (June 2015): 299–302. https://doi.org/10.1016/j.tree.2015.04.003.Full Text
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Curtice, Corrie, David W. Johnston, Hugh Ducklow, Nick Gales, Patrick N. Halpin, and Ari S. Friedlaender. “Modeling the spatial and temporal dynamics of foraging movements of humpback whales (Megaptera novaeangliae) in the Western Antarctic Peninsula.” Movement Ecology 3, no. 1 (January 2015): 13. https://doi.org/10.1186/s40462-015-0041-x.Full Text
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Heenehan, H., X. Basurto, L. Bejder, J. Tyne, J. E. S. Higham, and D. W. Johnston. “Using Ostrom's common-pool resource theory to build toward an integrated ecosystem-based sustainable cetacean tourism system in Hawai`i.” Journal of Sustainable Tourism 23, no. 4 (January 1, 2015): 536–56. https://doi.org/10.1080/09669582.2014.986490.Full Text Open Access Copy
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Johnston, David W., Jaime Frungillo, Ainsley Smith, Katie Moore, Brian Sharp, Janelle Schuh, and Andrew J. Read. “Trends in Stranding and By-Catch Rates of Gray and Harbor Seals along the Northeastern Coast of the United States: Evidence of Divergence in the Abundance of Two Sympatric Phocid Species?” Plos One 10, no. 7 (January 2015): e0131660. https://doi.org/10.1371/journal.pone.0131660.Full Text
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Kraska, J., G. O. Crespo, and D. W. Johnston. “Bio-logging of marine migratory species in the law of the sea.” Marine Policy 51 (January 1, 2015): 394–400. https://doi.org/10.1016/j.marpol.2014.08.016.Full Text
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Tyne, J. A., D. W. Johnston, R. Rankin, N. R. Loneragan, and L. Bejder. “The importance of spinner dolphin (Stenella longirostris) resting habitat: Implications for management.” Journal of Applied Ecology 52, no. 3 (January 1, 2015): 621–30. https://doi.org/10.1111/1365-2664.12434.Full Text
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Friedlaender, A. S., J. A. Goldbogen, D. P. Nowacek, A. J. Read, D. Johnston, and N. Gales. “Feeding rates and under-ice foraging strategies of the smallest lunge filter feeder, the Antarctic minke whale (Balaenoptera bonaerensis).” The Journal of Experimental Biology 217, no. Pt 16 (August 2014): 2851–54. https://doi.org/10.1242/jeb.106682.Full Text
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Tyne, Julian A., Kenneth H. Pollock, David W. Johnston, and Lars Bejder. “Abundance and survival rates of the Hawai'i Island associated spinner dolphin (Stenella longirostris) stock.” Plos One 9, no. 1 (January 22, 2014): e86132. https://doi.org/10.1371/journal.pone.0086132.Full Text
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Crain, D. D., A. S. Friedlaender, D. W. Johnston, D. P. Nowacek, B. L. Roberts, K. W. Urian, D. M. Waples, and A. J. Read. “A quantitative analysis of the response of short-finned pilot whales, Globicephala macrorhynchus, to biopsy sampling.” Marine Mammal Science 30, no. 2 (January 1, 2014): 819–26. https://doi.org/10.1111/mms.12074.Full Text
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Johnson, Z. I., and D. W. Johnston. “Smartphones: Powerful tools for geoscience education.” Eos 94, no. 47 (November 19, 2013): 433–34. https://doi.org/10.1002/2013EO470001.Full Text
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Crain, D. D., A. S. Friedlaender, D. W. Johnston, D. P. Nowacek, B. L. Roberts, K. W. Urian, D. M. Waples, and A. J. Read. “A quantitative analysis of the response of short-finned pilot whales, Globicephala macrorhynchus, to biopsy sampling.” Marine Mammal Science, 2013.
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Siders, Zachary A., Andrew J. Westgate, David W. Johnston, Laurie D. Murison, and Heather N. Koopman. “Seasonal variation in the spatial distribution of basking sharks (Cetorhinus maximus) in the lower Bay of Fundy, Canada.” Plos One 8, no. 12 (January 2013): e82074. https://doi.org/10.1371/journal.pone.0082074.Full Text
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Soulen, Brianne K., Kristina Cammen, Thomas F. Schultz, and David W. Johnston. “Factors affecting harp seal (Pagophilus groenlandicus) strandings in the Northwest Atlantic.” Plos One 8, no. 7 (January 2013): e68779. https://doi.org/10.1371/journal.pone.0068779.Full Text
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Johnston, D. W., A. S. Friedlaender, A. J. Read, and D. P. Nowacek. “Initial density estimates of humpback whales Megaptera novaeangliae in the inshore waters of the western Antarctic Peninsula during the late autumn.” Endangered Species Research 18, no. 1 (August 20, 2012): 63–71. https://doi.org/10.3354/esr00395.Full Text
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Johnston, David W., Matthew T. Bowers, Ari S. Friedlaender, and David M. Lavigne. “The effects of climate change on harp seals (Pagophilus groenlandicus).” Plos One 7, no. 1 (January 4, 2012): e29158. https://doi.org/10.1371/journal.pone.0029158.Full Text
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Thorne, Lesley H., David W. Johnston, Dean L. Urban, Julian Tyne, Lars Bejder, Robin W. Baird, Suzanne Yin, et al. “Predictive modeling of spinner dolphin (Stenella longirostris) resting habitat in the main Hawaiian Islands.” Plos One 7, no. 8 (January 2012): e43167. https://doi.org/10.1371/journal.pone.0043167.Full Text
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Forney, K. A., D. R. Kobayashi, D. W. Johnston, J. A. Marchetti, and M. G. Marsik. “What's the catch? Patterns of cetacean bycatch and depredation in Hawaii-based pelagic longline fisheries.” Marine Ecology 32, no. 3 (September 1, 2011): 380–91. https://doi.org/10.1111/j.1439-0485.2011.00454.x.Full Text
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Friedlaender, A. S., D. W. Johnston, W. R. Fraser, J. Burns, H. Patrick N., and D. P. Costa. “Ecological niche modeling of sympatric krill predators around Marguerite Bay, Western Antarctic Peninsula.” Deep Sea Research Part Ii: Topical Studies in Oceanography 58, no. 13–16 (July 1, 2011): 1729–40. https://doi.org/10.1016/j.dsr2.2010.11.018.Full Text
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Nowacek, Douglas P., Ari S. Friedlaender, Patrick N. Halpin, Elliott L. Hazen, David W. Johnston, Andrew J. Read, Boris Espinasse, Meng Zhou, and Yiwu Zhu. “Super-aggregations of krill and humpback whales in Wilhelmina Bay, Antarctic Peninsula.” Plos One 6, no. 4 (January 2011): e19173. https://doi.org/10.1371/journal.pone.0019173.Full Text
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Hazen, E. L., and D. W. Johnston. “Meridional patterns in the deep scattering layers and top predator distribution in the central equatorial Pacific.” Fisheries Oceanography 19, no. 6 (November 1, 2010): 427–33. https://doi.org/10.1111/j.1365-2419.2010.00561.x.Full Text
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Friedlaender, A. S., D. W. Johnston, and P. N. Halpin. “Effects of the North Atlantic Oscillation on sea ice breeding habitats of harp seals (Pagophilus groenlandicus) across the North Atlantic.” Progress in Oceanography 86, no. 1–2 (July 1, 2010): 261–66. https://doi.org/10.1016/j.pocean.2010.04.002.Full Text
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Leaper, R., D. M. Lavigne, P. Corkeron, and D. W. Johnston. “Towards a precautionary approach to managing Canada's commercial harp seal hunt.” Ices Journal of Marine Science 67, no. 2 (March 1, 2010): 316–20. https://doi.org/10.1093/icesjms/fsp232.Full Text
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Friedlaender, A. S., D. P. Nowacek, D. W. Johnston, A. J. Read, R. B. Tyson, L. Peavey, and E. M. S. Revelli. “Multiple sightings of large groups of Arnoux's beaked whales (Berardius arnouxii) in the Gerlache Strait, Antarctica.” Marine Mammal Science 26, no. 1 (January 1, 2010): 246–50. https://doi.org/10.1111/j.1748-7692.2009.00346.x.Full Text
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Gales, N. J., W. D. Bowen, D. W. Johnston, K. M. Kovacs, C. L. Littnan, W. F. Perrin, J. E. Reynolds, and P. M. Thompson. “Guidelines for the treatment of marine mammals in field research.” Marine Mammal Science 25, no. 3 (July 1, 2009): 725–36. https://doi.org/10.1111/j.1748-7692.2008.00279.x.Full Text
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McDonald, Mark A., John A. Hildebrand, Sean M. Wiggins, David W. Johnston, and Jeffrey J. Polovina. “An acoustic survey of beaked whales at Cross Seamount near Hawaii.” The Journal of the Acoustical Society of America 125, no. 2 (February 2009): 624–27. https://doi.org/10.1121/1.3050317.Full Text
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Johnston, D. W., A. S. Friedlaender, A. J. Read, and D. P. Nowacek. “Abundance of humpback whales (Megaptera novaeangliae) in the Western Antarctic Peninsula during the Austral fall.” Marine Biology, 2009.
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Johnston, D. W., J. Robbins, M. E. Chapla, D. K. Mattila, and K. R. Andrews. “Diversity, habitat associations and stock structure of odontocete cetaceans in the waters of American Samoa, 2003-06.” Journal of Cetacean Research and Management 10, no. 1 (June 1, 2008): 59–66.
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Johnston, D. W., M. McDonald, J. Polovina, R. Domokos, S. Wiggins, and J. Hildebrand. “Temporal patterns in the acoustic signals of beaked whales at Cross Seamount.” Biology Letters 4, no. 2 (April 2008): 208–11. https://doi.org/10.1098/rsbl.2007.0614.Full Text
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Johnston, D. W., M. E. Chapla, L. E. Williams, and D. K. Mattila. “Identification of humpback whale wintering habitat in the Northwestern Hawaiian Islands using spatial habitat modeling.” Endangered Species Research 3 (October 2007): 249–57.
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Johnston, D. W., and A. J. Read. “Flow-field observations of a tidally driven island wake used by marine mammals in the Bay of Fundy, Canada.” Fisheries Oceanography 16, no. 5 (September 1, 2007): 422–35. https://doi.org/10.1111/j.1365-2419.2007.00444.x.Full Text
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Ingram, S. N., L. Walsh, D. W. Johnston, and E. Rogan. “The influence of benthic topography and oceanography on the distribution of fin and minke whales in the Bay of Fundy, Canada.” Journal of the Marine Biological Society of the U.K. 87 (March 2007): 149–56.
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Ingram, S. N., L. Walshe, D. Johnston, and E. Rogan. “Habitat partitioning and the influence of benthic topography and oceanography on the distribution of fin and minke whales in the Bay of Fundy, Canada.” Journal of the Marine Biological Association of the United Kingdom 87, no. 1 (February 1, 2007): 149–56. https://doi.org/10.1017/S0025315407054884.Full Text
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Nowacek, D. P., L. H. Thorne, D. W. Johnston, and P. L. Tyack. “Responses of cetaceans to anthropogenic noise.” Mammal Review 37, no. 2 (January 1, 2007): 81–115. https://doi.org/10.1111/j.1365-2907.2007.00104.x.Full Text
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Baker, J. B., C. L. Littnan, and D. W. Johnston. “Potential Effects of Sea-level Rise on the Terrestrial Habitats of Endangered and Endemic Megafauna in the Northwestern Hawaiian Islands.” Endangered Species Research 4 (2006): 1–10.
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Johnston, D. W. “A Hard Days Night: Spinner Dolphins Need Their Rest Too.” Ka Pili Kai 28 (2006): 9–11.
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Johnston, D. W., L. H. Thorne, and A. J. Read. “Fin whales Balaenoptera physalus and minke whales Balaenoptera acutorostrata exploit a tidally driven island wake ecosystem in the Bay of Fundy.” Marine Ecology Progress Series 305 (December 23, 2005): 287–95. https://doi.org/10.3354/meps305287.Full Text
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Johnston, D. W., A. S. Friedlaender, L. G. Torres, and D. M. Lavigne. “Variation in sea ice cover on the east coast of Canada from 1969 to 2002: Climate variability and implications for harp and hooded seals.” Climate Research 29, no. 3 (October 17, 2005): 209–22. https://doi.org/10.3354/cr029209.Full Text
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Johnston, D. W., A. J. Westgate, and A. J. Read. “Effects of fine-scale oceanographic features on the distribution and movements of harbour porpoises Phocoena phocoena in the Bay of Fundy.” Marine Ecology Progress Series 295 (June 23, 2005): 279–93. https://doi.org/10.3354/meps295279.Full Text
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Gannon, D. P., D. W. Johnston, A. J. Read, and D. P. Nowacek. “Resonance and dissonance: Science, ethics and the sonar debate.” Marine Mammal Science 20 (2004): 213–14.
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Gannon, D. P., D. W. Johnston, A. J. Read, and D. P. Nowacek. “Resonance and dissonance: Science, ethics, and the sonar debate.” Marine Mammal Science 20, no. 4 (January 1, 2004): 898–99. https://doi.org/10.1111/j.1748-7692.2004.tb01202.x.Full Text
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Johnston, D. W. “The effect of acoustic harassment devices on harbour porpoises (Phocoena phocoena) in the Bay of Fundy, Canada.” Biological Conservation 108, no. 1 (November 1, 2002): 113–18. https://doi.org/10.1016/S0006-3207(02)00099-X.Full Text
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Johnston, D. W., P. Meisenheimer, and D. M. Lavigne. “An evaluation of management objectives for Canada's commercial harp seal hunt, 1996-1998.” Conservation Biology 14, no. 3 (June 1, 2000): 729–37. https://doi.org/10.1046/j.1523-1739.2000.98260.x.Full Text
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Palka, D. L., A. J. Read, A. J. Westgate, and D. W. Johnston. “Summary of current knowledge of harbour porpoises in US and Canadian Atlantic waters.” Forty Sixth Report of the International Whaling Commission, December 1, 1996, 559–65.
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Rees, Alan F., Larisa Avens, K. Ballorain, E. Bevan, Annette C. Broderick, R. R. Carthy, M. J. A. Christianen, et al. “The potential of unmanned aerial vehicles for sea turtle research and conservation.” Endangered Species Research, n.d.
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Ridge, Justin T., Patrick C. Gray, Anna E. Windle, and David W. Johnston. “Deep learning for coastal resource conservation: automating detection of shellfish reefs.” Remote Sensing in Ecology and Conservation, n.d. https://doi.org/10.1002/rse2.134.Full Text
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Ridge, Justin T., and David W. Johnston. “Unoccupied Aircraft Systems (UAS) for Marine Ecosystem Restoration.” Frontiers in Marine Science 7 (n.d.). https://doi.org/10.3389/fmars.2020.00438.Full Text
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Book Sections
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Forte, Maurizio, Nevio Danelon, David Johnston, Katherine McKusker, Everette Newton, Gianfranco Morelli, and Gianluca Catanzariti. “Vulci 3000: A digital challenge for the interpretation of Etruscan and Roman cities.” In Digital Cities Between History and Archaeology, edited by Maurizio Forte and Helena Murteira, 13–36. Oxford University Press, USA, 2020.
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Johnston, D. W. “Vigilance, resilience and failures of science and management: Spinner dolphins and tourism in Hawai’i.” In Cambridge University Press, 9780521195973:275–92, 2014. https://doi.org/10.1017/CBO9781139018166.023.Full Text
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Conference Papers
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Kahane-Rapport, S. R., M. S. Savoca, D. E. Cade, P. S. Segre, K. C. Bierlich, J. Calambokidis, A. S. Friedlaender, D. W. Johnston, A. J. Werth, and J. A. Goldbogen. “From Feast Mode to Least Mode: How Lunge Filter Feeding Biomechanics Constrain Rorqual Foraging Ecology Across Scale.” In Integrative and Comparative Biology, 60:E116–E116, 2020.Link to Item
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Heenehan, H. L., D. W. Johnston, S. M. Van Parijs, L. Bejder, and J. A. Tyne. “Acoustic response of Hawaiian spinner dolphins to human disturbance.” In Proceedings of Meetings on Acoustics, Vol. 27, 2016. https://doi.org/10.1121/2.0000232.Full Text
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Datasets
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Digiacomo, Alexandra, David Johnston, Clara Bird, Virginia Pan, Justin Ridge, Claire Atkins-Davis, and Kelly Dobroski. “Data from: Modeling salt marsh vegetation height using Unoccupied Aircraft Systems and Structure from Motion,” June 8, 2020. https://doi.org/10.7924/r4w956k1q.Data Access
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- Teaching & Mentoring
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Recent Courses
- BIOLOGY 293A: Research Independent Study 2020
- BIOLOGY 335A: Drones in Marine Biology, Ecology, and Conservation 2020
- BIOLOGY 493A: Research Independent Study 2020
- ENVIRON 335A: Drones in Marine Biology, Ecology, and Conservation 2020
- ENVIRON 393: Research Independent Study 2020
- ENVIRON 393A: Research Independent Study 2020
- ENVIRON 394A: Research Independent Study 2020
- ENVIRON 593: Independent Studies and Projects 2020
- ENVIRON 735A: Drones in Marine Biology, Ecology, and Conservation 2020
- ENVIRON 899: Master's Project 2020
- ENVIRON 999: Duke Environmental Leadership: Master's Project 2020
- BIOLOGY 493: Research Independent Study 2019
- ENERGY 395: Connections in Energy: Interdisciplinary Team Projects 2019
- ENERGY 396: Connections in Energy: Interdisciplinary Team Projects 2019
- ENERGY 795: Connections in Energy: Interdisciplinary Team Projects 2019
- ENERGY 796: Connections in Energy: Interdisciplinary Team Projects 2019
- ENVIRON 824A: Marine Conservation Biology 2019
- BIOLOGY 445A: Climate Change in the Marine Environment 2018
- ENVIRON 445A: Climate Change in the Marine Environment 2018
- ENVIRON 745A: Climate Change in the Marine Environment 2018
- ENVIRON 886: Current Topics in Marine Conservation 2018
- ENVIRON 886A: Current Topics in Marine Conservation 2018
- PUBPOL 445A: Climate Change in the Marine Environment 2018
- Scholarly, Clinical, & Service Activities
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Outreach & Engaged Scholarship
- Bass Connections Faculty Team Leader. Developing Rapid, Cost-effective Methods for Evaluating Coastal Biodiversity and Resilience. 2018 - 2019 2018 - 2019
- Bass Connections Faculty Team Member. Digital Cities and Cyberarchaeology. August 2017 - May 2018 2017 - 2018
- Bass Connections Faculty Team Member. Digital Cities and Polysensing Environments. August 2016 - May 2017 2016 - 2017
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