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Select publications

  • Sewanee student collaborators are highlighted. 

  • Graduate student collaborators are highlighted.

  • Note that Ezell's publications also occur under his birth name "Keen".

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2024

  • Calhoun, WR, and EK Ezell. (2024) Anthropogenic debris on a protected barrier island: St. Catherine’s Island (Georgia, USA). Coastal Research 40(3): 485-498. 

  • O’Mahony, EA, AL Sremba, EM Keen, N Robinson,  A Dundas, D Steel, J Wray, CS Baker, OE Gaggiotti. (2024) Collecting baleen whale blow samples by drone: a minimally intrusive tool for conservation genetics. Molecular Ecological Research 00:e13957.

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2023

  • Keen, EM, EA O’Mahony, LM Nichol, BM Wright, C Shine, B Hendricks, H Meuter, HA Alidina, J Wray (2023) Ship-strike forecast & mitigation for whales of the Gitga’at First Nation. Endangered Species Research 51:31-58. 

  • Keen, EM (2023) LTabundR. R package. (Density and abundance estimation for NOAA cetacean line-transect surveys.)

  • Keen, EM (2023) shipstrike. R package. (Utilities for assessing the impacts of marine traffic upon whale populations.)

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2022

  • Keen, EM, B Hendricks, C Shine, J Wray, CR Picard, H Alidina (2022) A simulation-based tool for estimating whale-vessel encounter rates. Ocean & Coastal Management 224:106183.

  • Falcone, EA, E Keene, EM Keen, …, G Schorr (2022) Movements and residency of fin whales (Balaenoptera physalus) in the California Current System. Mammalian Biology. 10.1007/s42991-022-00298-4.

  • Schorr, GS, D Sweeney, …, EM Keen (2022) Long-term movements and dive behavior of Offshore Killer Whales. Frontiers in Marine Science 9:854893.

  • Keen, EM (2022) suRvey. R package. (Open-source, customizable data entry app for wildlife surveys)

  • Keen, EM, EJ True, AR Summers, EC Smith, J Brew, SG Lapierre (2022) High-throughput digital cough recording on a university campus: A SARS-CoV-2-negative curated open database and operational template for acoustic screening of respiratory diseases. Digital Health 8:1-6.

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2021

  • Keen, EM, J Pilkington, …, J Wray (2021) Fin whales of the Great Bear Rainforest: Balaenoptera physalus velifera in a Canadian Pacific fjord system. PLOS ONE. https://doi.org/10.1371/journal.pone.0256815

  • Wray, J, E O’Mahony, EM Keen (2021) Social survival: social niche partitioning among humpback whales within a proposed critical feeding habitat. PLOS ONE. doi: 10.1371/journal.pone.0245409

  • Keen, EM (2021) soundcheck. R package. (Open-source, customizable app for annotating sound recordings.)

  • Keen, EM, J Wren, E O’Mahony, J Wray (2021) catRlog: a photo-identification project management system based in R. Mammalian Biology. doi: 10.1007/s42991-021-00158-7

  • Hendricks B, EM Keen, C Shine, J Wray, CR Picard, H Alidina (2021) Acoustic tracking of fin whales: habitat use and movement patterns in a Canadian Pacific fjord system. Journal of the Acoustical Society of America 149(6).

  • Keen EM, J Brew, B Brew, M Rudd (2021) Zero to Hero in R: An online book for data science. www.datascience.pizza. 

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2020

  • Keen, EM, J Wray, B Hendricks, E O’Mahony, C Picard, H Alidina (2020) Determining marine mammal detection functions for a stationary land-based survey site. Wildlife Research.

  • Towers, JR, EM Keen, K Balcomb-Bartok, J Vonick, D Davis (2020) Live strandings of Bigg’s killer whales (Orcinus orca) along the west coast of North America. Aquatic Mammals Journal 46(5).

  • Wray, J, EM Keen (2020) Calving rate decline in humpback whales (Megaptera novaeangliae) in northern British Columbia. Marine Mammal Science 1-12. 

  • Qualls, KM, KS Bernard, EM Keen (2019)  Drivers of Euphausia pacifica and Thysanoessa spinifera Abundances in the Kitimat Fjord System, BC Canada. Masters thesis, Oregon State University. 

  • Griffiths, ET, F Archer, …, EM Keen, J Barlow, JE Moore (2020) Detection and classification of narrow banded high frequency echolocation clicks from drifting recorders. Journal of the Acoustical Society of America.

 

2019

  • Hendricks, B, JL Wray, EM Keen, HM Alidina, TA Gulliver, CR Picard (2019) Automated localization of whales in coastal fjords. Journal of the Acoustical Society of America 146: 4672. 

  • Keen, EM, K Scales, B Rone, E Hazen, E Falcone, G Schorr (2019) Night and day: diel differences in ship strike risk for fin whales along the US west coast. Frontiers in Marine Science. https://doi.org/10.3389/fmars.2019.00730

  • Keen, EM, E Falcone, G Schorr (2019) Diel dive behavior of fin whales (Balaenoptera physalus) in Southern California Bight. Aquatic Mammals Journal 45(2), 233-243.

 

2018

  • Keen, EM, Hendricks, B, JL Wray, HM Alidina, L McWhinnie, H Meuter, CR Picard (2018) Integrating passive acoustic and visual monitoring of cetaceans in coastal habitats. Proceedings of Meetings on Acoustics 35:010002.

  • Keen, EM, J Wray, J Pilkington, KL Thompson, CR Picard (2018) Distinct habitat use strategies of sympatric rorqual whales within a fjord system. Marine Environmental Research 140: 180-189.

  • Keen, EM, KM Qualls (2018) Respiratory behaviors in sympatric rorqual whales: the influence of prey depth and implications for temporal access to prey. Journal of Mammalogy 99(1):27-40.

  • Hendricks, B, EM Keen, JL Wray, HM Alidina, TA Gulliver, H Meuter, CR Picard (2018) Localizing bioacoustic signals with long-baseline hydrophone arrays. Journal of the Acoustical Society of America 144(3). 

  • Hendricks, B, EM Keen, JL Wray, HM Alidina, L McWhinnie, H Meuter, CR Picard (2018) Automated monitoring and analysis of marine mammal vocalizations in coastal habitats. IEEE Oceans 2018. 


2017 & prior

  • Keen, EM (2017) Whales of the Rainforest: habitat use strategies of sympatric rorqual whales within a fjord system. Doctoral Thesis. University of California: San Diego. 

  • Keen, EM (2017) Aggregative and feeding thresholds of sympatric rorqual whales within a fjord system. Ecosphere 8(3): 10.1002/ecs2.1702. 

  • Keen, EM, JL Wray, H Meuter, KL Thompson, JP Barlow, CR Picard (2017) “Whale wave”: shifting strategies structure the complex use of critical fjord habitat by humpbacks. Marine Ecology Progress Series. 567: 211-233. 

  • Keen, EM (2016) bangarang. R package. (Utilities for oceanographic analysis in the Kitimat Fjord System)

  • Keen, EM, KB Watson, KM Qualls, RM Keen (2016) A handheld rangefinder for seabird surveys in confined channels. Marine Ornithology 44: 137-144.

  • Keen, EM (2015) Net savvy: a practical guide to zooplankton sampler design. NOAA Tech Memo NMFS-SWFSC-545.

  • Evans, JP, EM Keen (2013) Regeneration failure in a remnant stand of pignut hickory (Carya glabra) on a protected barrier island in Georgia, USA. Natural Areas Journal 33(2):171-176.

  • Bagulayan, A, JN Bartlett-Roa, …, EM Keen, …, AM Van Cise, PJS Franks (2012) Journey to the Center of the Gyre: The Fate of the Tohoku Tsunami Debris Field.  Oceanography 25(2):200–207.

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