Profile

Prof Len Thomas

Prof Len Thomas
Professor of Statistics


 

My main research areas are: (1) Development of methods and software for estimating the size, density and distribution of wild animal and plant populations. I mostly work on a group of related methods called distance sampling. (2) Use of computer intensive methods to fit and compare stochastic models of wildlife population dynamics. Here, I mostly work on algorithms called particle filters. For more details about my work, including links to my publications, please see my personal home page.

source: symbiosis

 

Recent publications


28  (of 28 published available) for lt5 with keyword Density clear keyword filter. (source: University of St Andrews PURE)
Please click title of any item for full details.

2018 (10)
Biological Conservation
vol.226 pp.42-53
(Article)
Basin-scale distribution of harbour porpoises in the Baltic Sea provides basis for effective conservation actions
Ida Carlén, Len Thomas, Julia Carlström, Mats Amundin, Jonas Teilmann, Nick Tregenza, Jakob Tougaard, Jens C. Koblitz, Signe Sveegaard, Daniel Wennerberg, Olli Loisa, Michael Dähne, Katharina Brundiers, Monika Kosecka, Line Anker Kyhn, Cinthia Tiberi Ljungqvist, Iwona Pawliczka, Radomil Koza, Bartlomiej Arciszewski, Anders Galatius, Martin Jabbusch, Jussi Laaksonlaita, Jussi Niemi, Sami Lyytinen, Anja Gallus, Harald Benke, Penina Blankett, Krzysztof E. Skóra, Alejandro Acevedo-Gutiérrez 
Keywords: Spatial distribution, Passive acoustic monitoring, Population structure, Harbour porpoise, Marine protected areas, Biodiversity conservation
2018 (12)
Methods in Ecology and Evolution
vol.9 pp.2362-2371
(Article)
Estimating effective detection area of static passive acoustic data loggers from playback experiments with cetacean vocalisations
Hanna K. Nuuttila, Katharina Brundiers, Michael Dähne, Jens C. Koblitz, Len Thomas, Winnie Courtene-Jones, Peter G. H. Evans, John R. Turner, Jim D. Bennell, Jan G. Hiddink 
Keywords: Abundance, C-POD, Density estimation, Detection function, Effective detection radius, Static passive acoustic monitoring
2018 (27/3)

(Other report)
2018 (5)
Journal of the Acoustical Society of America
vol.143 pp.2980-2993
(Article)
2018 (2)
Journal of the Acoustical Society of America
vol.143 pp.954-967
(Article)
Modelling the broadband propagation of marine mammal echolocation clicks for click-based population density estimates
Alexander von Benda-Beckmann, Len Thomas, Peter Lloyd Tyack, Michael Ainslie 
2017 (31/1)
Endangered Species Research
vol.33 pp.265-279
(Article)
2017 (3)
Journal of the Acoustical Society of America
vol.141 pp.1962-1974
(Article)
Spatio-temporal variation in click production rates of beaked whales
Victoria E. Warren, Tiago A. Marques, Danielle Harris, Len Thomas, Peter Lloyd Tyack, Natacha Aguilar de Soto, Mark Johnson 
Keywords: Arts and Humanities (miscellaneous), Acoustics and Ultrasonics
2017 (31/1)
Endangered Species Research
vol.33 pp.193-209
(Article)
Survival, density, and abundance of common bottlenose dolphins in Barataria Bay (USA) following the Deepwater Horizon oil spill
Trent L. McDonald, Fawn E. Hornsby, Todd R. Speakman, Eric S. Zolman, Keith D. Mullin, Carrie Sinclair, Patricia E. Rosel, Len Thomas, Lori H. Schwacke 
Keywords: Capture-recapture, Photo-identification, Robust design, Spatial-capture model, Tursiops truncatusEcology, Nature and Landscape Conservation
2017 (27/12)
Marine Ecology Progress Series
vol.585 pp.213-227
(Article)
Whale distribution in a breeding area
Daniel Danilewicz, Philip Steven Hammond, Len Thomas, Alexandre N Zerbini 
Keywords: Shelter, Conservation, Density surface model, Cetacean, Line transect, Reproduction
2016 (19/5)
PLoS One
vol.11 pp.1-16
(Article)
An efficient acoustic density estimation method with human detectors applied to gibbons in Cambodia
Benjamin M. Rawson, David Louis Borchers, Ben Stevenson, Tiago A. Marques, Len Thomas 
2015
Journal of the American Statistical Association
vol.110 pp.195-204
(Article)
2015 (2)
Deep Sea Research Part II: Topical Studies in Oceanography
vol.112 pp.143-157
(Article)
2015 (12/11)
Scientific Reports
vol.5 
(Article)
Passive acoustic monitoring of beaked whale densities in the Gulf of Mexico
John Hildebrand, Simone Baumann-Pickering, Kaitlin Frasier, Jennifer Trickey, Karlina Merkens, Sean Wiggins, Mark McDonald, Lance Garrison, Danielle Harris, Tiago A. Marques, Len Thomas 
2013 (5)
Biological Reviews of the Cambridge Philosophical Society
vol.88 pp.287–309
(Article)
Estimating animal population density using passive acoustics
Tiago A. Marques, Len Thomas, Stephen Martin, David Mellinger, Jessica Ward, David Moretti, Danielle Harris, Peter Lloyd Tyack 
2013 (3)
ICES Journal of Marine Science

(Article)
2013 (11)
Methods in Ecology and Evolution
vol.4 pp.1001-1010
(Article)
2013 (25/12)
Journal of the Acoustical Society of America
vol.134 pp.2469–2476
(Article)
2012 (7/5)
Marine Ecology Progress Series
vol.453 pp.227-240
(Article)
2011
Journal of Marine Biology

(Article)
2011

(Other report)
Workshop on new developments in cetacean survey methods
David Louis Borchers, Len Thomas, Stephen Terrence Buckland, Hans Skaug, Jay Barlow 
2010

(Commissioned report)
Density estimation implications of increasing ambient noise on beaked whale click detection and classification
Tiago A. Marques, Jessica Ward, Susan Jarvis, David Moretti, Ronald Morrissey, Nancy DiMarzio, Len Thomas 
2010 (10)
International Journal of Primatology
vol.31 pp.833-847
(Article)
2010 (6)
International Journal of Primatology
vol.31 pp.485-499
(Article)
2009

(Commissioned report)

Contact Details:

Prof Len Thomas
The Observatory
Buchanan Gardens
University of St Andrews
St Andrews
KY16 9LZ
Fife
UK

tel: (44) (0) 1334 461801
fax: (44) (0) 1334 461800
room: 208
email: lt5@st-andrews.ac.uk

Related:

research@st-andrews
Personal Homepage
Centre for Research into Ecological & Environmental Modelling
School of Mathematics & Statistics
National Centre for Statistical Ecology
Scottish Oceans Institute

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Contact

The Secretary
Scottish Oceans Institute
Institiud Chuantan na h-Alba
Gatty Marine Laboratory
East Sands St Andrews
KY16 8LB
Scotland
UK

tel: +44 (0) 1334 463472
fax: +44 (0) 1334 463443
email: soi@st-andrews.ac.uk

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