Prof David Borchers

Professor of Statistics

tel: (44) (0) 1334 461843
fax: (44) (0) 1334 461800
email: dlb@st-andrews.ac.uk
room: 100  (The Observatory)
The Observatory
Buchanan Gardens
University of St Andrews
St Andrews
Fife
KY16 9LZ
UK


General Information



My research interests include: Statistical methods for estimating wildlife population parameters, including estimation of abundance, distribution and trends, from survey data. Distance Sampling, Spatially Explicit Mark-Recapture, other Mark-Recapture and Removal methods, Sampling Theory and Spatial Modelling methods. My home page is here.

 

Recent Publications

Glennie, R, Borchers, DL, Murchie, M, Harmsen, B & Foster, R 2017, 'Open population maximum likelihood spatial capture-recapture' Biometrics.
Marques, TA, Thomas, L, Kery, M, Buckland, ST, Borchers, DL, Rexstad, E, Fewster, RM, Mackenzie, DI, Royle, JA, Guillera-Arroita, G, Handel, CM, Pavlacky, DC & Camp, RJ 2017, 'Model-based approaches to deal with detectability: a comment on Hutto (2016a)' Ecological Applications, vol 27, no. 5, pp. 1694-1698. DOI: 10.1002/eap.1553/full
Borchers, DL & Cox, MJ 2017, 'Distance sampling detection functions: 2D or not 2D?' Biometrics, vol 73, no. 2, pp. 593-602. DOI: 10.1111/biom.12581
Measey, GJ, Stevenson, BC, Scott, T, Altwegg, R & Borchers, DL 2017, 'Counting chirps: acoustic monitoring of cryptic frogs' Journal of Applied Ecology, vol 54, no. 3, pp. 894-902. DOI: 10.1111/1365-2664.12810
Borchers, DL & Marques, TA 2017, 'From distance sampling to spatial capture-recapture' Advances in Statistical Analysis, vol First Online. DOI: 10.1007/s10182-016-0287-7
Heide-Jørgensen, MP, Hansen, RG, Fossette, S, Nielsen, NH, Borchers, DL, Stern, H & Witting, L 2016, 'Rebuilding beluga stocks in West Greenland' Animal Conservation, vol 20, no. 3, pp. 282-293. DOI: 10.1111/acv.12315
Kidney, D, Rawson, BM, Borchers, DL, Stevenson, B, Marques, TA & Thomas, L 2016, 'An efficient acoustic density estimation method with human detectors applied to gibbons in Cambodia' PLoS One, vol 11, no. 5, e0155066, pp. 1-16. DOI: 10.1371/journal.pone.0155066
King, R, T. McClintock, B, Kidney, D & Borchers, D 2016, 'Capture-recapture abundance estimation using a semi-complete data likelihood approach' Annals of Applied Statistics, vol 10, no. 1, pp. 264-285. DOI: 10.1214/15-AOAS890
Buckland, ST, Oedekoven, CS & Borchers, DL 2016, 'Model-based distance sampling' Journal of Agricultural, Biological and Environmental Statistics, vol 21, no. 1, pp. 58-75. DOI: 10.1007/s13253-015-0220-7
Borchers, DL & Langrock, R 2015, 'Double-observer line transect surveys with Markov-modulated Poisson process models for overdispersed animal availability' Biometrics, vol 71, no. 4, pp. 1060-1069. DOI: 10.1111/biom.12341
Distiller, G & Borchers, DL 2015, 'A spatially explicit capture-recapture estimator for single-catch traps' Ecology and Evolution, vol 5, no. 21, pp. 5075-5087. DOI: 10.1002/ece3.1748
Rekdal, SL, Hansen, RG, Borchers, D, Bachmann, L, Laidre, KL, Wiig, O, Nielsen, NH, Fossette, S, Tervo, O & Heide-Jørgensen, MP 2015, 'Trends in bowhead whales in West Greenland: aerial surveys vs. genetic capture-recapture analyses' Marine Mammal Science, vol 31, no. 1, pp. 133-154. DOI: 10.1111/mms.12150
Stevenson, BC, Borchers, DL, Altwegg, R, Swift, RJ, Gillespie, DM & Measey, GJ 2015, 'A general framework for animal density estimation from acoustic detections across a fixed microphone array' Methods in Ecology and Evolution, vol 6, no. 1, pp. 38-48. DOI: 10.1111/2041-210X.12291
Borchers, DL, Stevenson, BC, Kidney, D, Thomas, L & Marques, TA 2015, 'A unifying model for capture-recapture and distance sampling surveys of wildlife populations' Journal of the American Statistical Association, vol 110, no. 509, pp. 195-204. DOI: 10.1080/01621459.2014.893884
Marques, TA, Buckland, ST, Borchers, DL, Rexstad, E & Thomas, L 2014, Distance Sampling. in M Lovric (ed.), International Encyclopedia of Statistical Science. Springer, pp. 398. DOI: 10.1007/978-3-642-04898-2_214
Burt, ML, Borchers, DL, Jenkins, KJ & Marques, TA 2014, 'Using mark-recapture distance sampling methods on line transect surveys' Methods in Ecology and Evolution, vol 5, no. 11, pp. 1180-1191. DOI: 10.1111/2041-210X.12294
Borchers, DL & Kidney, D 2014, Flexible density surface estimation for spatially explicit capture-recapture surveys. CREEM TEchnical Report, no. 2014-1, University of St Andrews.
Borchers, D, Distiller, G, Foster, R, Harmsen, B & Milazzo, L 2014, 'Continuous-time spatially explicit capture-recapture models, with an application to a jaguar camera-trap survey' Methods in Ecology and Evolution, vol 5, no. 7, pp. 656-665. DOI: 10.1111/2041-210X.12196
Arranz, P, Borchers, DL, Aguilar de Soto, N, Johnson, MP & Cox, MJ 2014, 'A new method to study inshore whale cue distribution from land-based observations' Marine Mammal Science, vol 30, no. 2, pp. 810-818. DOI: 10.1111/mms.12077
Hammond, PS, Gillespie, DM, Lovell, P, Samarra, FIP, Swift, RJ, Macleod, K, Tasker, ML, Berggren, P, Borchers, DL, Burt, ML, Paxton, CGM, Canadas, A, Desportes, G, Donovan, GP, Gilles, A, Lehnert, K, Siebert, U, Gordon, JCD, Leaper, R, Leopold, M, Scheidat, M, Oien, N, Ridoux, V, Rogan, E, Skov, H, Teilmann, J, Van Canneyt, O & Vazquez, JA 2014, 'Large scale surveys for cetaceans: line transect assumptions, reliability of abundance estimates and improving survey efficiency – A response to MacLeod' Biological Conservation, vol 170, pp. 338-339. DOI: 10.1016/j.biocon.2014.01.016
Read, AJ, Barco, S, Bell, J, Borchers, DL, Burt, ML, Cummings, EW, Dunn, J, Fougeres, J, Hazen, L, Williams-Hodge, LE, Laura, A-M, McAlarney, RJ, Nilsson, P, Pabst, DA, Paxton, CGM, Schneider, SZ, Urian, K, Waples, DM & McLellan, WA 2014, 'Occurrence, distribution and abundance of cetaceans in Onslow Bay, North Carolina, USA' Journal of Cetacean Research and Management, vol 14, pp. 23-35.
Newman, K, Buckland, ST, Morgan, B, King, R, Borchers, DL, Cole, D, Besbeas, P, Gimenez, O & Thomas, L 2014, Modelling population dynamics: Model formulation, fitting and assessment using state-space methods. Methods in Statistical Ecology, Springer, New York. DOI: 10.1007/978-1-4939-0977-3
Hammond, PS, Macleod, K, Berggren, P, Borchers, DL, Burt, ML, Cañadas, A, Desportes, G, Donovan, GP, Gilles, A, Gillespie, DM, Gordon, JCD, Hiby, L, Kuklik, I, Leaper, R, Lehnert, K, Leopold, M, Lovell, P, Øien, N, Paxton, CGM, Ridoux, V, Rogan, E, Samarra, FIP, Scheidat, M, Sequeira, M, Siebert, U, Skov, H, Swift, RJ, Tasker, M, Teilmann, J, Van Canneyt, O & Vázquez, JA 2013, 'Cetacean abundance and distribution in European Atlantic shelf waters to inform conservation and management' Biological Conservation, vol 164, pp. 107-122. DOI: 10.1016/j.biocon.2013.04.010
Cox, MJ, Borchers, DL & Kelly, N 2013, 'Nupoint: An R package for density estimation from point transects in the presence of nonuniform animal density' Methods in Ecology and Evolution, vol 4, no. 6, pp. 589-594. DOI: 10.1111/2041-210X.12058
Efford, MG, Borchers, DL & Mowat, G 2013, 'Varying effort in capture–recapture studies' Methods in Ecology and Evolution, vol 4, no. 7, pp. 629-636. DOI: 10.1111/2041-210X.12049
Langrock, R, Borchers, DL & Skaug, H 2013, 'Markov-modulated nonhomogeneous Poisson processes for modeling detections in surveys of marine mammal abundance' Journal of the American Statistical Association, vol 108, no. 503, pp. 840-851. DOI: 10.1080/01621459.2013.797356
Borchers, DL, Zucchini, W, Heide-Jørgensen, MP, Cañadas, A & Langrock, R 2013, 'Using hidden Markov models to deal with availability bias on line transect surveys' Biometrics, vol 69, no. 3, pp. 703-713. DOI: 10.1111/biom.12049
Borchers, D 2012, 'A non-technical overview of spatially explicit capture-recapture models' Journal of Ornithology, vol 152, no. 2, pp. S435-S444. DOI: 10.1007/s10336-010-0583-z
Buckland, ST, Rexstad, E & Borchers, DL 2012, 'Wildlife population survey methods: challenges and opportunities in the 21st century' Paper presented at International Statistical Ecology Conference, Sundvolden, Norway, 3/07/12 - 6/07/12, .
Heide-Jorgensson, MP, Leidre, KL, Hansen, RG, Burt, ML, Simon, M, Borchers, DL, Hansen, J, Harding, K, Rasmussen, M, Dietz, R & Teilmann, J 2012, 'Rate of increase and current abundance of humpback whales in West Greenland' Journal of Cetacean Research and Management, vol 12, no. 1, pp. 1-14.
Burt, ML, Borchers, DL & Ensor, P 2012, 'Trackline detection probability of Antarctic minke whales: Analysis of the BT model experiments conducted on the IWC-SOWER cruises 2005/6-2007/8' Journal of Cetacean Research and Management, vol 12, no. 3, pp. 307-316.
Bernal, M, Stratoudakis, Y, Wood, S, Ibaibarriaga, L, Uriarte, A, Valdes, L & Borchers, D 2011, 'A revision of daily egg production estimation methods, with application to Atlanto-Iberian sardine. 1. Daily spawning synchronicity and estimates of egg mortality' ICES Journal of Marine Science, vol 68, no. 3, pp. 519-527. DOI: 10.1093/icesjms/fsr001
Bernal, M, Stratoudakis, Y, Wood, S, Ibaibarriaga, L, Valdes, L & Borchers, D 2011, 'A revision of daily egg production estimation methods, with application to Atlanto-Iberian sardine. 2. Spatially and environmentally explicit estimates of egg production' ICES Journal of Marine Science, vol 68, no. 3, pp. 528-536. DOI: 10.1093/icesjms/fsr002
Cox, MJ, Borchers, DL, Demer, DA, Cutter, GR & Brierley, AS 2011, 'Estimating the density of Antarctic krill (Euphausia superba) from multi-beam echo-sounder observations using distance sampling methods' Journal of the Royal Statistical Society: Series C (Applied Statistics), vol 60, no. 2, pp. 301-316. DOI: 10.1111/j.1467-9876.2010.00748.x
Borchers, DL, Thomas, L, Buckland, ST, Skaug, H & Barlow, J 2011, Workshop on new developments in cetacean survey methods. CREEM Technical Report, no. 2011-3, University of St Andrews.
Marques, TALO, Buckland, ST, Borchers, DL, Rexstad, E & Thomas, L 2011, Distance sampling. in M Lovric (ed.), International Encyclopedia of Statistical Science. Springer-Verlag, pp. 398-400. DOI: 10.1007/978-3-642-04898-2_214
Heide-Jorgensen, MP, Laidre, KL, Burt, ML, Borchers, DL, Marques, TA, Hansen, RG, Rasmussen, M & Fossette, S 2010, 'Abundance of narwhals (Monodon monoceros) on the hunting grounds in Greenland' Journal of Mammalogy, vol 91, no. 5, pp. 1135-1151. DOI: 10.1644/09-MAMM-A-198.1
Heide-Jørgensen, MP, Laidre, KL, Simon, M, Rasmussen, M, Burt, ML & Borchers, DL 2010, 'Abundance estimates of fin whales in West Greenland in 2007' Journal of Cetacean Research and Management, vol 11, no. 2, pp. 83-88.
Borchers, D, Marques, T, Gunnlaugsson, T & Jupp, P 2010, 'Estimating distance sampling detection functions when distances are measured with errors' Journal of Agricultural, Biological and Environmental Statistics, vol 15, no. 3, pp. 346-361. DOI: 10.1007/s13253-010-0021-y
Buckland, ST, Laake, JL & Borchers, DL 2010, 'Double-observer line transect methods: levels of independence' Biometrics, vol 66, no. 1, pp. 169-177. DOI: 10.1111/j.1541-0420.2009.01239.x
Rexstad, E, Thomas, L, Borchers, D & Buckland, S 2010, 'Effect of unmodelled heterogeneity upon abundance estimation using line and point transects' Paper presented at International Statistical Ecology Conference 2010, Canterbury, United Kingdom, 6/07/10, .
Marques, TA, Buckland, ST, Borchers, DL, Tosh, D & McDonald, RA 2010, 'Point Transect Sampling Along Linear Features' Biometrics, vol 66, no. 4, pp. 1247-1255. DOI: 10.1111/j.1541-0420.2009.01381.x
Heide-Jørgensen, MP, Laidre, KL, Borchers, DL, Marques, TA, Stern, H & Simon, M 2010, 'The effect of sea-ice loss on beluga whales (Delphinapterus leucas) in West Greenland' Polar Research, vol 29, no. 2, pp. 198-208. DOI: 10.1111/j.1751-8369.2009.00142.x
Efford, MG, Dawson, D & Borchers, DL 2009, 'Population density estimated from locations of individuals on a passive detector array.' Ecology, vol 90, no. 10, pp. 2676-2682. DOI: 10.1890/08-1735.1
Fewster, RM, Buckland, ST, Burnham, KP, Borchers, DL, Jupp, PE, Laake, JL & Thomas, L 2009, 'Estimating the encounter rate variance in distance sampling' Biometrics, vol 65, no. 1, pp. 225-236. DOI: 10.1111/j.1541-0420.2008.01018.x
Efford, MG, Borchers, DL & Byrom, AE 2009, Density Estimation by Spatially Explicit Capture--Recapture: Likelihood-Based Methods. in DL Thomson, EG Cooch & MJ Conroy (eds), Modeling Demographic Processes In Marked Populations. Springer, Boston, MA, pp. 255-269. DOI: 10.1007/978-0-387-78151-8_11
Canadas, AM, Donovan, GP, Desportes, G & Borchers, DL 2009, 'A short review of the distribution of short-beaked common dolphins (Delphinus delphis) in the central and eastern North Atlantic with an abundance estimate for part of this area' NAMMCO Scientific Publications, vol 7. DOI: 10.7557/3.2714
Borchers, DL, Pike, DG, Gunnlaugsson, T & Víkingsson, GA 2009, 'Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors' NAMMCO Scientific Publications, vol 7. DOI: 10.7557/3.2708
Borchers, DL & Efford, M 2008, 'Spatially Explicit Maximum Likelihood Methods for Capture-Recapture Studies' Biometrics, vol 64, no. 2, pp. 377-385. DOI: 10.1111/j.1541-0420.2007.00927.x
Southwell, C, Paxton, CGM, Borchers, D, Boveng, P & De la Mare, W 2008, 'Taking account of dependent species in management of the Southern Ocean krill fishery: estimating crabeater seal abundance off east Antarctica' Journal of Applied Ecology, vol 45, pp. 622-631. DOI: 10.1111/j.1365-2664.2007.01399.x
Southwell, CJ, Paxton, CGM, Borchers, DL, Boveng, PL, Nordy, ES, Blix, AS & de la Mare, WK 2008, 'Estimating population status under conditions of uncertainty: the Ross seal in East Antarctica' Antarctic Science, vol 20, pp. 123-133. DOI: 10.1017/S0954102007000879
Southwell, C, Paxton, CGM, Borchers, D, Boveng, P, Rogers, T & de la Mare, WK 2008, 'Uncommon or cryptic? Challenges in estimating leopard seal abundance by conventional but state-of-the-art methods' Deep Sea Research Part I: Oceanographic Research Papers, vol 55, pp. 519-531. DOI: 10.1016/j.dsr.2008.01.005
Bernal, M, Ibaibarriaga, L, de Lanzos, AL, Lonergan, ME, Hernandez, C, Franco, C, Rasines, I, Valdes, L & Borchers, DL 2008, 'Using multinomial models to analyse data from Iberian sardine egg incubation experiments: a comparison with traditional techniques' ICES Journal of Marine Science, vol 65, no. 1, pp. 51-59. DOI: 10.1093/icesjms/fsm164
Southwell, C, Paxton, CGM & Borchers, DL 2008, 'Detectability of penguins in aerial surveys over the pack-ice off Antarctica' Wildlife Research, vol 35, no. 4, pp. 349-357. DOI: 10.1071/WR07093
Fewster, RM, Southwell, C, Borchers, DL, Buckland, ST & Pople, AR 2008, 'The influence of animal mobility on the assumption of uniform distances in aerial line-transect surveys' Wildlife Research, vol 35, no. 4, pp. 275-288. DOI: 10.1071/WR07077
Buckland, ST, Borchers, DL, Johnston, A, Henrys, PA & Marques, TALO 2007, 'Line Transect Methods for Plant Surveys' Biometrics, vol 63, no. 4, pp. 989-998. DOI: 10.1111/j.1541-0420.2007.00798.x
Heide-Jorgensen, MP, Laidre, K, Borchers, D, Samarra, FIP & Stern, H 2007, 'Increasing abundance of bowhead whales in West Greenland' Biology Letters, vol 3, pp. 577-580. DOI: 10.1098/rsbl.2007.0310
Bernal, M, Stratoudakis, Y, Coombs, S, Angelico, MM, de Lanzos, AL, Porteiro, C, Sagarminaga, Y, Santos, M, Uriarte, A, Cunha, E, Valdes, L & Borchers, D 2007, 'Sardine spawning off the European Atlantic coast: Characterization of and spatio-temporal variability in spawning habitat' Progress in Oceanography, vol 74, no. 2-3, pp. 210-227. DOI: 10.1016/j.pocean.2007.04.018
Ibaibarriaga, L, Bernal, M, Motos, L, Lonergan, ME, Borchers, DL & Wood, SN 2007, 'Estimation of development properties of stage-classified biological processes using multinomial models: a case study of the Bay of Biscay anchovy (Engraulis encrasicolis, L.) egg development' Canadian Journal of Fisheries and Aquatic Sciences, vol 64, pp. 539-553. DOI: 10.1139/F07-030
Southwell, C, Borchers, DL, Paxton, CGM, Burt, ML & de la Mare, W 2007, 'Estimation of detection probability in aerial surveys of Antarctic pack-ice seals' Journal of Agricultural, Biological and Environmental Statistics, vol 12, no. 1, pp. 41-54. DOI: 10.1198/108571107X162920
Borchers, DL, Laake, JLL, Southwell, C & Paxton, CGM 2006, 'Accommodating unmodeled heterogeneity in double-observer distance sampling surveys' Biometrics, vol 62, no. 2, pp. 372-378. DOI: 10.1111/j.1541-0420.2005.00493.x
Buckland, ST, Summers, RW, Borchers, DL & Thomas, L 2006, 'Point transect sampling with traps or lures.' Journal of Applied Ecology, vol 43, no. 2, pp. 377-384. DOI: 10.1111/j.1365-2664.2006.01135.x
Southwell, C, de la Mare, B, Borchers, DL & Burt, ML 2004, 'Shipboard line transect surveys of Crabeater seal abundance in the pack-ice off eastern Antarctica: evaluation of assumption' Marine Mammal Science, vol 20, pp. 602-620.
Laake, JL & Borchers, DL 2004, Methods for incomplete detection at distance zero. in Advanced Distance Sampling., 6, Oxford University Press, pp. 108-189.
Burnham, KP, Buckland, ST, Laake, JL, Borchers, DL, Marques, TALO, Bishop, JRB & Thomas, L 2004, Further topics in distance sampling. in ST Buckland, DR Anderson, KP Burnham, JL Laake, DL Borchers & L Thomas (eds), Advanced Distance Sampling. Oxford University Press, Oxford, pp. 307-392.
Canadas, A, Desportes, G & Borchers, DL 2004, 'The estimation of the detection function and g(0) for short-beaked common dolphins (Delphinis delphis), using double-platform data collected during the NASS-95 Faroese survey' Journal of Cetacean Research and Management, vol 6, pp. 191-198.
Buckland, ST, Anderson, DR, Burnham, KP, Laake, JL, Borchers, DL & Thomas, L 2004, Advanced Distance Sampling: Estimating abundance of biological populations. Oxford University Press.
Clarke, ED, Spear, LB, McCracken, ML, Marques, FFC, Borchers, DL, Buckland, ST & Ainley, DG 2003, 'Validating the use of generalized additive models and at-sea surveys to estimate size and temporal trends of seabird populations' Journal of Applied Ecology, vol 40, pp. 278-292. DOI: 10.1046/j.1365-2664.2003.00802.x
Stratoudakis, Y, Bernal, M, Borchers, DL, Borges, MF & Cardador, F 2003, 'Changes in the distribution of sardine eggs and larvae off Portugal, 1985-2000' Fisheries Oceanography, vol 12, pp. 49-60. DOI: 10.1046/j.1365-2419.2003.00222.x
Hammond, PS, Berggren, P, Benke, H, Borchers, DL, Collet, A, Heide-Jørgensen, MP, Heimlich, S, Hiby, AR, Leopold, MF & Øien, N 2002, 'Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters' Journal of Applied Ecology, vol 39, no. 2, pp. 361-376. DOI: 10.1046/j.1365-2664.2002.00713.x
Butternworth, DS, Borchers, DL & Punt, AE 2002, 'Dynamic response analysis for the eastern North Pacigic gray whale population: An alternative approach.' Journal of Cetacean Research and Management, vol 4, no. 1, pp. 77-83.
Thomas, L, Buckland, ST, Burnham, KP, Anderson, DR, Laake, JL, Borchers, DL & Strindberg, S 2002, Distance Sampling. in AH El-Shaarawi & WW Piegorsch (eds), Encyclopedia of Environmetrics. John Wiley and Sons, pp. 544-552.
Borchers, DL, Buckland, ST & Zucchini, W 2002, Estimating Animal Abundance: Closed Populations. Springer-Verlag.
Bernal, M, Borchers, DL, Valdes, L, Lago de Lanzos, A & Buckland, ST 2001, 'A new ageing method for eggs of fish species with daily spawning synchronicity' Canadian Journal of Fisheries and Aquatic Sciences, vol 58, pp. 2330-2340. DOI: 10.1139/cjfas-58-12-2330
Marques, FC, Buckland, ST, Goffin, D, Dixon, CE, Borchers, DL, Mayle, BA & Pearce, AJ 2001, 'Estimating deer abundance from line transect surveys of dung: sika deer in southern Scotland' Journal of Applied Ecology, vol 38, pp. 349-363. DOI: 10.1046/j.1365-2664.2001.00584.x
Buckland, ST, Anderson, DR, Burnham, KP, Laake, JL, Borchers, DL & Thomas, L 2001, Introduction to Distance Sampling: Estimating Abundance of Biological Populations. Oxford University Press.
Buckland, ST, Goudie, IBJ & Borchers, DL 2000, 'Wildlife population assessment: past developments and future directions.' Biometrics, vol 56, pp. 1-12. DOI: 10.1111/j.0006-341X.2000.00001.x
Buckland, ST, Augustin, NH, Trenkel, VM, Elston, DA & Borchers, DL Simulated inference, with applications to wildlife population assessments..
Borchers, DL, Augustin, NH, Clarke, ED, Buckland, ST & 1, O 1998, 'Spatiotemporal modelling for the annual egg production method of stock assessment using generalized additive models.' Canadian Journal of Fisheries and Aquatic Sciences, vol 55, pp. 2608-2621.
Borchers, DL, Zucchini, W & Fewster, RM 1998, 'Mark-recapture models for line transect surveys.' Biometrics, vol 54, pp. 1207-1220.
Borchers, DL, Buckland, ST, Goedhart, PW, Clarke, ED & 1, O 1998, 'Horvitz-Thompson estimators for double-platform line transect surveys.' Biometrics, vol 54, pp. 1221-1237.
Borchers, DL, Buckland, ST, Preide, IJ & Ahmadi, S 1997, 'Improving the precision of the daily egg production method using generalized additive models.' Canadian Journal of Fisheries and Aquatic Sciences, vol 54, pp. 2727-2742.


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