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


22  (of 22 published available) for lt5 with keyword Whale clear keyword filter. (source: University of St Andrews PURE)
Please click title of any item for full details.

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 (12)
Ecosphere
vol.8 
(Article)
Individual, ecological, and anthropogenic influences on activity budgets of long-finned pilot whales
Saana Isojunno, Dinara Sadykova, Stacy Lynn De Ruiter, Charlotte Curé, Fleur Visser, Len Thomas, Patrick Miller, Catriona M Harris 
Keywords: Anthropogenic noise, Activity synchrony, Benthic habitat, Deep diving mammal, DTAG, Ethogram, Globicephala melas, Hidden Markov model, Naval sonar
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 (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 (12)
Proceedings of Meetings on Acoustics
vol.27 
(Review article)
From physiology to policy
Natacha Aguilar de Soto, Sascha Kate Hooker, Saana Isojunno, Mark Johnson, Patrick Miller, Peter Lloyd Tyack, Paul Wensveen, Carl Robert Donovan, Catriona M Harris, Danielle Harris, Laura Helen Marshall, Cornelia Sabrina Oedekoven, Rocio Prieto, Len Thomas 
2016 (8)
Marine Policy
vol.70 pp.58-64
(Article)
2016 (2/5)
Endangered Species Research
vol.30 pp.95-108
(Article)
Modeling the aggregated exposure and responses of bowhead whales Balaena mysticetus to multiple sources of anthropogenic underwater sound
William T. Ellison, Roberto Racca, Christopher W. Clark, Bill Streever, Adam S. Frankel, Erica Fleishman, Robyn Angliss, Joel Berger, Darlene Ketten, Melania Guerra, Matthias Leu, Megan McKenna, Todd Sformo, Brandon Southall, Robert Suydam, Len Thomas 
Keywords: Arctic, Cumulative effects, Harassment, Incidental take, Marine mammals, Negligible impact
2016
pp.399-407
(Conference contribution)
The challenges of analyzing behavioral response study data
Catriona M Harris, Len Thomas, Dinara Sadykova, Stacy Lynn De Ruiter, Peter Lloyd Tyack, Brandon L. Southall, Andrew J. Read, Patrick Miller 
Keywords: Sonar, Cetaceans, Change-point, Dose-response, State-space modelling
2015 (20/11)
Ecosphere
vol.6 
(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 
2015

(Other report)
Procedure description
Tiago A. Marques, Jessica Shaeffer, Len Thomas 
2014 (2)
Journal of the Acoustical Society of America
vol.135 pp.975-993
(Article)
Dose-response relationships for the onset of avoidance of sonar by free-ranging killer whales
Patrick Miller, Ricardo Nuno Antunes, Paul Wensveen, Filipa Isabel Pereira Samarra, Ana Catarina De Carvalho Alves, Peter Lloyd Tyack, Petter H. Kvadsheim, Lars Kleivane, Frans-Peter A. Lam, Michael A. Ainslie, Len Thomas 
2013 (3)
ICES Journal of Marine Science

(Article)
2013
Biology Letters
vol.9 pp.1-5
(Article)
First direct measurements of behavioural responses by Cuvier's beaked whales to mid-frequency active sonar
Stacy Lynn De Ruiter, Brandon L. Southall, John Calambokidis, Walter M. X. Zimmer, Dinara Sadykova, Erin A. Falcone, Ari S. Friedlaender, John E. Joseph, Gregory S. Schorr, Len Thomas, Peter Lloyd Tyack 
Keywords: Acoustic disturbance, Avoidance response, Anthropogenic noise, Mid-frequency active sonar, Military, Ziphius cavirostris
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 

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

edit lt5 details

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

X
X