Mr Callan Duck

Senior Research Scientist

tel: 01334 462636
fax: 01334 463443
email: cdd1@st-andrews.ac.uk
room: SMRU 1.11  (SOI)
Scottish Oceans Institute
East Sands
University of St Andrews
St Andrews
Fife
KY16 8LB
UK


General Information



My main function at SMRU is to monitor the size and status of the UK seal populations. Almost all of the surveying I undertake is in Scotland, with Chris Morris.  Dave Thompson usually looks after harbour seals in east England.  We survey harbour seals during their June and July breeding season in limited local areas.  Our main surveys are during their annual moult, in August, when we obtain an index of the size of populations in different parts of Scotland.  We survey grey seals during their breeding season, between mid September and the end of November/early December.  We use light aircraft and small helicopters for our aerial surveys.

 

Recent Publications

Hanson, N, Thompson, D, Duck, C, Baxter, J & Lonergan, M 2017, 'Harbour seal (Phoca vitulina) abundance within the Firth of Tay and Eden Estuary, Scotland: recent trends and extrapolation to extinction' Aquatic Conservation: Marine and Freshwater Ecosystems, vol 27, no. 1, pp. 268-281. DOI: 10.1002/aqc.2609
Thackeray, SJ, Henrys, PA, Hemming, D, Bell, JR, Botham, MS, Burthe, S, Helaouet, P, Johns, DG, Jones, ID, Leech, DI, Mackay, EB, Massimino, D, Atkinson, S, Bacon, PJ, Brereton, TM, Carvalho, L, Clutton-Brock, TH, Duck, C, Edwards, M, Elliott, JM, Hall, SJG, Harrington, R, Pearce-Higgins, JW, Høye, TT, Kruuk, LEB, Pemberton, JM, Sparks, TH, Thompson, PM, White, I, Winfield, IJ & Wanless, S 2016, 'Phenological sensitivity to climate across taxa and trophic levels' Nature, vol 535, no. 7611, pp. 241-245. DOI: 10.1038/nature18608
Arso Civil, M, Smout, SC, Duck, CD, Morris, C, Onoufriou, J, Thompson, D, Brownlow, A, Davison, N, Cummings, C, Pomeroy, P, McConnell, BJ & Hall, AJ 2016, Harbour Seal Decline - vital rates and drivers: Report to Scottish Government MMSS/002/15. SMRU.
Russell, DJF, Duck, CD, Morris, C & Thompson, D 2016, Independent estimates of grey seal population size: 2008 and 2014: Special Committee on Seals. Briefing Paper 16/03. Sea Mammal Research Unit.
Jones, EL, McConnell, BJ, Smout, SC, Hammond, PS, Duck, CD, Morris, C, Thompson, D, Russell, DJF, Vincent, C, Cronin, M, Sharples, RJ & Matthiopoulos, J 2015, 'Patterns of space use in sympatric marine colonial predators reveals scales of spatial partitioning' Marine Ecology Progress Series, vol 534, pp. 235-249. DOI: 10.3354/meps11370
Russell, DJF, Duck, CD, Morris, C & Thompson, D 2015, Review of parameters of grey seal pup production model: Special Committee on Seals. Briefing Paper 15/03. Sea Mammal Research Unit.
Stewart, JE, Pomeroy, PP, Duck, CD & Twiss, SD 2014, 'Finescale ecological niche modeling provides evidence that lactating gray seals (Halichoerus grypus) prefer access to fresh water in order to drink' Marine Mammal Science, vol 30, no. 4, pp. 1456-1472. DOI: 10.1111/mms.12126
Harris, R, Harris, CM, Duck, CD & Boyd, I 2014, 'The effectiveness of a seal scarer at a wild salmon net fishery' ICES Journal of Marine Science, vol 71, no. 7, pp. 1913-1920. DOI: 10.1093/icesjms/fst216
Hanson, NN, Thompson, D, Duck, CD, Moss, S & Lonergan, M 2013, 'Pup mortality in a rapidly declining harbour seal (Phoca vitulina) population' PLoS One, vol 8, no. 11, e80727. DOI: 10.1371/journal.pone.0080727
Lonergan, M, Duck, CD, Moss, S, Morris, C & Thompson, D 2013, 'Rescaling of aerial survey data with information from small numbers of telemetry tags to estimate the size of a declining harbour seal population' Aquatic Conservation: Marine and Freshwater Ecosystems, vol 23, no. 1, pp. 135-144. DOI: 10.1002/aqc.2277
Russell, DJ, McConnell, BJ, Thompson, D, Duck, CD, Morris, C, Harwood, J & Matthiopoulos, J 2013, 'Uncovering the links between foraging and breeding regions in a highly mobile mammal' Journal of Applied Ecology, vol 50, no. 2, pp. 499-509. DOI: 10.1111/1365-2664.12048
Spencer, M, Mieszkowska, N, Robinson, LA, Simpson, SD, Burrows, MT, Birchenough, SNR, Capasso, E, Cleall-Harding, P, Crummy, J, Duck, C, Eloire, D, Frost, M, Hall, AJ, Hawkins, SJ, Johns, DG, Sims, DW, Smyth, TJ & Frid, CLJ 2012, 'Region-wide changes in marine ecosystem dynamics: state-space models to distinguish trends from step changes' Global Change Biology, vol 18, no. 4, pp. 1270-1281. DOI: 10.1111/j.1365-2486.2011.02620.x
Jones, EL, McConnell, BJ, Duck, CD, Morris, C, Hammond, PS & Russell, DJF 2012, Marine distribution of grey & harbour seals around the UK.: Special Committee on Seals (12/06). Sea Mammal Research Unit.
Jones, EL, McConnell, BJ, Duck, CD, Hammond, PS & Matthiopoulos, J 2012, 'Spatial distributions between UK grey & harbour seal populations' Paper presented at International Statistical Ecology Conference, Oslo, Norway, 3/07/12 - 6/07/12, .
Lonergan, M, Duck, CD, Thompson, D, Moss, S & McConnell, BJ 2011, 'British grey seal (Halichoerus grypus) abundance in 2008: an assessment based on aerial counts and satellite telemetry' ICES Journal of Marine Science, vol 68, no. 10, pp. 2201-2209. DOI: 10.1093/icesjms/fsr161
Cordes, LS, Duck, CD, Mackey, BL, Hall, AJ & Thompson, PM 2011, 'Long-term patterns in harbour seal site-use and the consequences for managing protected areas' Animal Conservation, vol 14, no. 4, pp. 430-438. DOI: 10.1111/j.1469-1795.2011.00445.x
Spencer, M, Birchenough, SNR, Mieszkowska, N, Robinson, LA, Simpson, SD, Burrows, MT, Capasso, E, Cleall-Harding, P, Crummy, J, Duck, C, Eloire, D, Frost, M, Hall, AJ, Hawkins, SJ, Johns, DG, Sims, DW, Smyth, TJ & Frid, CLJ 2011, 'Temporal change in UK marine communities: trends or regime shifts?' Marine Ecology, vol 32, pp. 10-24. DOI: 10.1111/j.1439-0485.2010.00422.x
Russell, DJF, Jones, EL, Matthiopoulos, J, Duck, CD, Morris, C & McConnell, BJ 2011, SMRU seal telemetry data holdings: Special Committee on Seals. Sea Mammal Research Unit.
Lonergan, ME, Thompson, D, Thomas, LJ & Duck, CD 2011, 'An approximate Bayesian method applied to estimating the trajectories of four British grey seal (Halichoerus grypus) populations from pup counts.' Journal of Marine Biology. DOI: 10.1155/2011/597424
Duck, CD 2010, 'Charting Progress 2. Chapter 3. Healthy and Biologically Diverse Seas: Seals', pp. 506-539, Charting Progress 2, defra.
Thompson, D, Duck, CD & Lonergan, ME 2010, 'The status of harbour seals (Phoca vitulina) in the United Kingdom' NAMMCO Scientific Publications, vol 8, pp. 117-128.
Cunningham, L, Baxter, JM, Boyd, IL, Duck, CD, Lonergan, M, Moss, SE & McConnell, B 2009, 'Harbour seal movements and haul-out patterns: implications for monitoring and management' Aquatic Conservation: Marine and Freshwater Ecosystems, vol 19, no. 4, pp. 398-407. DOI: 10.1002/aqc.983
Butler, JRA, Middlemas, SJ, McKelvey, SA, McMyn, I, Leyshon, B, Walker, I, Thompson, PM, Boyd, IL, Duck, CD, Armstrong, JD, Graham, IM & Baxter, JM 2008, 'The Moray Firth Seal Management Plan: an adaptive framework for balancing the conservation of seals, salmon, fisheries and wildlife tourism in the UK' Aquatic Conservation: Marine and Freshwater Ecosystems, vol 18, no. 6, pp. 1025-1038. DOI: 10.1002/aqc.923
Cronin, M, Duck, CD, O'Cadhla, O, Nairn, R, Strong, D & O'Keefe, C 2007, 'An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003' Journal of Zoology, vol 273, no. 2, pp. 131-139. DOI: 10.1111/j.1469-7998.2007.00316.x
Lonergan, M, Duck, CD, Thompson, D, Mackey, B, Cunningham, L & Boyd, I 2007, 'Using sparse survey data to investigate the declining abundance of british harbour seals' Journal of Zoology, vol 271, no. 3, pp. 261-9. DOI: 10.1111/j.1469-7998.2007.00311.x
Thompson, PM, Mackey, B, Barton, TR, Duck, C & Butler, JRA 2007, 'Assessing the potential impact of salmon fisheries management on the conservation status of harbour seals (Phoca vitulina) in north-east Scotland' Animal Conservation, vol 10, pp. 48-56. DOI: 10.1111/j.1469-1795.2006.00066.x
Cronin, MA, Duck, CD & Cadhla, OO 2007, 'Aerial surveying of grey seal breeding colonies on the Blasket Islands, Co. Kerry, the Inishkea Group, Co. Mayo and the Donegal Coast, Ireland (vol 15, pg 73, 2007)' Journal for Nature Conservation, vol 15, no. 4, pp. 265-265. DOI: 10.1016/j.jnc.2007.07.001
Cronin, M, Duck, CD & O'Cadhla, O 2007, 'Aerial surveying of grey seal breeding colonies on the Blasket Islands, Co. Kerry, the Inishkea Group, Co. Mayo and the Donegal Coast, Ireland.' Journal of Nature Conservation, vol 15, no. 2, pp. 73-83. DOI: 10.1016/j.jnc.2006.11.001
Duck, CD & Thompson, D 2007, The status of grey seals in Britain. in T Haug, M Hammill & D Olafsdottir (eds), Grey seals in the North Atlantic and the Baltic. NAMMCO scientific publications, vol. 6, North Atlantic Marine Mammal Commission, pp. 69-78.
Kuiken, T, Kennedy, S, Barrett, T, Van de Bildt, MWG, Borgsteede, FH, Brew, SD, Codd, GA, Duck, C, Deaville, R, Eybatov, T, Forsyth, MA, Foster, G, Jepson, PD, Kydyrmanov, A, Mitrofanov, I, Ward, CJ, Wilson, S & Osterhaus, ADME 2006, 'The 2000 canine distemper epidemic in Caspian seals (Phoca caspica): Pathology and analysis of contributory factors' Veterinary Pathology, vol 43, pp. 321-338.
Thompson, D, Lonergan, ME & Duck, CD 2005, 'Population dynamics of harbour seals (Phoca vitulina) in England: growth and catastrophic declines.' Journal of Applied Ecology, vol 42, no. 4, pp. 638-648. DOI: 10.1111/j.1365-2664.2005.01025.x
Pomeroy, P, Redman, P, Duck, CD, Ruddell, S & Twiss, S 2005, 'Breeding site choice fails to explain interannual associations of female grey seals.' Behavioral Ecology and Sociobiology, vol 57, no. 6, pp. 546-556. DOI: 10.1007/s00265-004-0882-6
Thompson, D, Strange, I, Riddy, M & Duck, CD 2005, 'The size and status of the population of southern sea lions Otaria flavescens in the Falkland Islands' Biological Conservation, vol 121, no. 3, pp. 357-367. DOI: 10.1016/j.biocon.2004.05.008
Pomeroy, P, Hammond, JA, Hall, AJ, Lonergan, ME, Duck, CD, Smith, VJ & Thompson, H 2005, 'Morbillivirus neutralizing antibodies in Scottish grey seals (Halichoerus grypus): assessing the effects of the 1988 and 2002 PDV epizootics.' Marine Ecology Progress Series, vol 287, pp. 241-250. DOI: 10.3354/meps287241
Pomeroy, P, Hammond, JA, Hall, AJ, Lonergan, ME, Duck, CD, Smith, VJ & Thompson, H 2005, 'Morbillivirus neutralizing antibodies in Scottish grey seals: assessing the effects of the 1988 and 2002 PDV epizootics' Marine Ecology Progress Series, vol 287, pp. 241-250.
Matthiopoulos, J, McConnell, BJ, Duck, CD & Fedak, MA 2004, 'Using satellite telemetry and aerial counts to estimate space use by grey seals around the British Isles.' Journal of Applied Ecology, vol 41, no. 3, pp. 476-491. DOI: 10.1111/j.0021-8901.2004.00911.x
Twiss, SD, Duck, CD & Pomeroy, P 2003, 'Grey seal (Halichoerus grypus) pup mortality is not explained by local breeding density on the Island of North Rona, Scotland' Journal of Zoology, vol 259, no. 1, pp. 83-91. DOI: 10.1017/S0952836902003035
Thompson, D, Duck, CD & Fedak, MA 2002, 'Biology of grey seals: abundance, distribution and movements.' The Salmon Net, vol XXXII, pp. 34-40.
Duck, CD Surveys of harbour seals in Shetland and Orkney, August 2001.
Duck, CD Breeding and moulting season surveys of common (harbour) seals (Phoca vitulina) around Scotland, excluding the Northern Isles.
Kennedy, S, Kuiken, T, Jepson, PD, Deaville, R, Forsyth, M, Barrett, T, van de Bildt, MWG, Osterhaus, ADME, Eybatov, T, Duck, C, Kydyrmanov, A, Mitrofanov, I & Wilson, S 2000, 'Mass die-off of Caspian seals caused by canine distemper virus' Emerging Infectious Diseases, vol 6, pp. 637-639.
Pomeroy, PP, Twiss, SD & Duck, CD 2000, 'Expansion of a grey seal (Halichoerus grypus) breeding colony: changes in pupping site use at the Isle of May, Scotland' Journal of Zoology, vol 250, pp. 112.
Hall, AJ, Duck, CD, Law, RJ, Allchin, CR, Wilson, S & Eybator, T 1999, 'Organochlorine contaminants in Caspian and harbour seal blubber' Environmental Pollution, vol 106, pp. 203-212.


Click to Edit (authentication required)