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Publications

2015

Bowen, W.D., C. den Heyer, J.I. McMillan, and S.J. Iverson. 2015. Offspring size at weaning affects survival to recruitment and reproductive performance of primiparous gray seals. Ecology and Evolution. DOI: 10.1002/ece3.1450 [PDF]

2014

Lidgard, D.C., Bowen, W.D., Jonsen, I.D., McConnell, B.J., Lovell, P., Webber, D.M., Stone, T. and Iverson, S.J. 2104 Transmitting species-interaction data from animal–borne transceivers through Service Argos using Bluetooth communication. Methods in Ecology and Evolution 5: 864–871. DOI: 10.1111/2041-210X.12235 [PDF]

Baker, L.L., Jonsen, I.D., Lidgard, D.C., Mills Flemming, J.A., Bowen, D.W., and Iverson, S.J.. 2014. Detection effciency of Vemco Mobile Transceivers deployed on grey seals (Halichoerus grypus) on the Scotian Shelf. PLoS ONE 9(6): e98117. DOI:10.1371/journal.pone.0098117 [PDF]

Heaslip, S.G., W.D. Bowen, and S.J. Iverson. 2014. Testing predictions of optimal diving theory using animal-borne video from harbour seals (Phoca vitulina color). Canadian Journal of Zoology 92:309-318. DOI: 10.1139/cjz-2013-0137 [PDF]

Lidgard, D. C., W. D. Bowen, I. Jonsen, and S. J. Iverson. 2014. Predator-borne acoustic transceivers and GPS tracking reveal spatial and temporal patterns of encounters with acoustically-tagged fish in the open ocean. Marine Ecology Progress Series 501: 157–168. [PDF]

2013

Breed, G., Bowen, W. D, and Leonard, M. 2013. Behavioural signature of intraspecific competition and density-dependence in colony breeding marine predators. Ecology and Evolution 3(11):3838-54. DOI: 10.1002/ece3.754 [PDF]

Tucker, S., Stenson, G. B., Bowen, W. D., and Iverson, S. J. 2013. Fueling Phocids: divergent exploitation of primary energy sources and parallel ontogenetic diet switches among three species of sub-arctic seals. Marine Mammal Science DOI: 10.1111/mms.12009 [PDF]

Bowen, W. D., and Iverson, S. J. 2013. Methods of estimating marine mammal diets: A review of validation experiments and sources of bias and uncertainty. Marine Mammal Science 29(4): 719-754. DOI: 10.1111/j.1748-7692.2012.00604.x [PDF]

2012

Boehme, L., D. Thompson, M.A. Fedak, W.D. Bowen, M. Hammill, G. Stenson. 2012. How many seals were there? The global shelf loss during the Last Glacial Maximum and its effect on the size and distribution of grey seal populations. PlosOne 7:e53000, DOI: 10.1371/journal.pone.0053000 [PDF]

Lidgard, D. C., W. D. Bowen, I. Jonsen, and S. J. Iverson. 2012. Animal-borne acoustic transceivers reveal patterns of at-sea associations in an upper-trophic level predator.  PLoS One 7:e48962-e48962. [PDF]

Bowen, W. D. and Lidgard, D. 2012. Marine mammal culling programs: review of effects on predator and prey populations. Mammal Review 43(3): 207–220. DOI:10.1111/j.1365-2907.2012.00217.x [PDF]

Lang, S. L. C., Iverson, S. J., and Bowen, W. D. 2012. Primiparous and multiparous females differ in mammary gland alveolar development: implications for milk production. Journal of Experimental Biology 215(16): 2904-2911.   DOI: 10.1242/jeb.067058 [PDF]

Lidgard, D. C., Bowen, W. D., and Boness, D. J. 2012. Longitudinal changes and consistency in male physical and behavioural traits have implications for mating success in the grey seal (Halichoerus grypus). Canadian Journal of Zoology 90(7): 849-860. DOI: 10.1139/Z2012-053 [PDF]

Heaslip, S. G., Iverson, S. J., Bowen, W. D., and James, M. C. 2012. Jellyfish support high energy intake of leatherback sea turtles (Dermochelys coriacea): Video evidence from animal-borne cameras. PLoS One 7(3), e33259. DOI: 10.1371/journal.pone.0033259 [PDF]

2011

Lang, S. L. C., D. J. Boness, W. D. Bowen and S. J. Iverson. 2011.  Primiparous females do not exhibit reduced maternal care in gray seals (Halichoerus grypus). Marine Mammal Science 27(3): E153-E164. DOI: 10.1111/j.1748-7692.2010.00443.x [PDF]

Wood, S. A., Frasier, T. R., McLeod, B. A., Gilbert, J. R., White, B. N., Bowen, W. D., Hammill, M. O., Waring, G. T., and Brault, S. 2011. The genetics of recolonization: an analysis of the stock structure of grey seals (Halichoerus grypus) in the northwest Atlantic. Canadian Journal of Zoology 89(6): 490-497. DOI: 10.1139/Z11-012 [PDF]

Lang, S. L. C., Iverson, S. J. and Bowen, W. D. 2011. The influence of reproductive experience on milk energy output and lactation performance in the grey seal (Halichoerus grypus). PLoS One 6: 1-11, e19487. DOI: 10.1371/journal.pone.0019487 [PDF]

Benoit, H. P., Swain, D. P., Bowen, W. D., Breed, G. A., Hammill, M. O., and Harvey, V. 2011. Evaluating the potential for grey seal predation to explain elevated natural mortality in three fish species in the southern Gulf of St. Lawrence. Marine Ecology Progress Series 442: 149-167. DOI: 10.3354/meps09454 [PDF] 

Breed, G. D., Bowen, W. D. and Leonard, M. L. 2011. Development of foraging strategies with age in a long-lived marine predator. Marine Ecology Progress Series 431: 267-279. DOI: 10.3354/meps09134 [PDF]

2009

Breed, G. A., I. D. Jonsen, R. A. Myers, W. D. Bowen, and M. L. Leonard. 2009. Sex-specific, seasonal foraging tactics of adult grey seals (Halichoerus grypus) revealed by state–space analysis. Ecology 90(11): 3209–3221. DOI: 10.1890/07-1483.1 [PDF]

Lang, S. L. C., Iverson, S. J. and Bowen, W. D. 2009. Repeatability in lactation performance and the consequences for maternal reproductive success in grey seals. Ecology 90(9): 2513-2523. DOI: 10.1890/08-1386.1 [PDF]

Gales, N. J., Bowen, W. D., Johnston, D. W., Kovacs, K. M., Littnan, C. L., Perrin, W. F., Reynolds, J. E., and Thompson, P. M. 2009. Guidelines for the treatment of marine mammals in field research. Marine Mammal Science 25(3): 725-736. DOI: 10.1111/j.1748-7692.2008.00279.x [PDF]

Tucker, S., W. D. Bowen, and S. J. Iverson, W. Blanchard, and G. Stenson. 2009. Sources of variation in diets of harp (Pagophilus groenlandicus) and hooded (Cystophora cristata) seals estimated from quantitative fatty acid signature analysis (QFASA). Marine Ecology Progress Series 384:287-302. DOI: 10.3354/meps08000 [PDF]

Tucker, S., W. D. Bowen, S. J. Iverson, W. Blanchard, and G. B. Stenson. 2009. Sources of variation in diets of harp and hooded seals estimated from quantitative fatty acid signature analysis (QFASA). Marine Ecology Progress Series 384: 287–302. [PDF & Supplement]

Tucker, S., W. D. Bowen, S. J. Iverson, and G. B. Stenson. 2009. Intrinsic and extrinsic sources of variation in the diets of harp and hooded seals revealed by fatty acid profiles. Canadian Journal of Zoology 87(2): 139-151. DOI: 10.1139/Z08-145 [PDF]

Stokesbury, M. J. W., M. J. Dadswell, K. N. Holland, G. D. Jackson, W. D. Bowen, and R. K. O’Dor. 2009. Tracking diadromous fishes at sea: the electronic future using hybrid acoustic and archival tags. American Fisheries Society Symposium 69: 000–000. [PDF]

2008

Noren, S. R., D. J. Boness, S. J. Iverson, J. McMillan, and W. D. Bowen. 2008. Body condition at weaning affects the duration of the postweaning fast in gray seal pups (Halichoerus grypus). Physiological and Biochemical Zoology 81(3): 269–277. DOI: 10.1086/528777 [PDF]

Lidgard, D. C., D. J. Boness, W. Don Bowen, and J. I. McMillan. 2008. The implications of stress on male mating behavior and success in a sexually dimorphic polygynous mammal, the grey seal. Hormones and Behavior 53: 241–248. DOI: 10.1016/j.yhbeh.2007.10.003 [PDF]

Tucker, S., W. D. Bowen, and S. J. Iverson. 2008. Convergence of diet estimates derived from fatty acids and stable isotopes within individual grey seals. Marine Ecology Progress Series 354: 267–276. DOI: 10.3354/meps07263 [PDF]

2007

Beck, C. A., I. J. Iverson, and W. D. Bowen. 2007. Sex differences in grey seal diet reflect seasonal variation in foraging behaviour and reproductive expenditure: evidence from quantitative fatty acid signature analysis. Journal of Animal Ecology [PDF]

Tucker, S., W. D. Bowen, and S. J. Iverson. 2007. Dimensions of diet segregation in grey seals Halichoerus grypus revealed through stable isotopes of carbon (δ13C) and nitrogen (δ15N). Marine Ecology Progress Series 339: 271–282. [PDF]

Bowen, W. D., J. I. McMillan, and W. Blanchard. 2007. Reduced rate of population growth of gray seals at Sable Island: evidence from pup production and age of primiparity. Marine Mammal Science 23:48-64. [PDF]

2006

Trzcinski, M. K., R. Mohn, and W. D. Bowen. 2006. Continued decline of the threatened Eastern Scotian Shelf Atlantic cod population: how important is grey seal predation. Ecological Applications 16:2276-2292. [PDF]

Austin, D., W.D. Bowen, J.I. McMillan and S.J. Iverson. 2006. Linking movement, diving and habitat to feeding in a large marine predator. Ecology. 87:3095-3108. [PDF]

Boness, D. J., W. D. Bowen, B. M. Bulheier and G. J. Marshall. 2006. Mating tactics and mating system of an aquatic-mating pinniped: the harbor seal, Phoca vitulina. Behavioral Ecology and Sociobiology 61: 119-130. [PDF]

Bowen, W. D., S. J. Iverson, J. I. McMillan, and D. J. Boness. 2006. Reproductive performance in grey seals: age-related improvement and senescence in a capital breeder. Journal of Animal Ecology 75: 1340-1351. [PDF]

Breed, G. A., W. D. Bowen, J. I. McMillan, and M.L. Leonard. 2006. Sexual segregation of seasonal foraging habitats in a non-migratory marine mammal. Proceedings of the Royal Society B: Biological Sciences 273:2319-2326. [PDF]

Austin, D. W. D. Bowen, J. I. McMillan, and D. J. Boness. 2006. Stomach temperature telemetry reveals temporal patterns of foraging success in a free-ranging marine mammal. Journal of Animal Ecology 75:408-420. [PDF]

2005

Lang, S. L. C., S. J. Iverson, and W. D. Bowen. 2005. Individual variation in milk composition over lactation in harbour seals (Phoca vitulina) and the consequences of intermittent attendance. Canadian Journal of Zoology 83:1525-1531. [PDF]

Lidgard, D. C., D. J. Boness, W. D. Bowen, and J. I. McMillan. 2005. State-dependent male mating tactics in the grey seal: the importance of body size. Behavioral Ecology 16:541-549. [PDF]

Schulz, T. M. and W. D. Bowen. 2005. The evolution of pinniped lactation strategies: a comparative phylogenetic analysis. Ecological Monographs 75:159-177. [PDF]

Beck, C. A., S. J. Iverson and W. D. Bowen. 2005. Blubber fatty acids of grey seals reveal sex differences in diet of a size-dimorphic marine carnivore. Canadian Journal of Zoology 83(3): 377-388. [PDF]

Bowen, W. D., C. A. Beck, S. J. Iverson, D. Austin, J. I. McMillan. 2006. Linking predator foraging behaviour and diet with variability in continental shelf ecosystems: grey seals of eastern Canada, p 63-81. In Boyd, I., Wanless, S. and Camphuysen, C. J. (Eds.), Top Predators in marine ecosystems. Their role in monitoring and management. Cambridge University Press, Cambridge, UK [PDF]

2004

Schulz, T.M. and W.D. Bowen. 2004. Pinniped lactation strategies: evaluation of data on maternal and offspring life-history traits. Marine Mammal Science 20: 86-114.

Lidgard, D. C., D. J. Boness, W. D. Bowen, J. I. McMillan and R. C. Fleischer. 2004. The rate of fertilization in male mating tactics of the polygynous grey seal. Molecular Ecology 13:3543-3548.

Iverson, S. J., Field, C., Bowen, W. D., and Blanchard, W. 2004. Quantitative fatty acid signature analysis: a new method of estimating predator diets. Ecological Monographs 74: 211-235. [PDF]

Austin, D.A., Bowen, W.D., and McMillan, J.I. 2004. Intraspecific variation in movement patterns: modeling individual behaviour in a large marine predator. Oikos 105: 15-30. [PDF]

Thiemann, G. W., Budge, S. M., Bowen, W. D., and Iverson, S. J. 2004. Comment on Grahl-Nielsen et al. (2003) 'Fatty acid composition of the adipose tissue of polar bears and of their prey: ringed seals, bearded seals and harp seals'. Marine Ecology Progress Series 281: 297-301. DOI: 10.3354/meps281297 [PDF]

2003

Bowen, W.D., McMillan, J.I., and Mohn, R. 2003. Sustained exponential population growth of the grey seal on Sable Island. ICES Journal of Marine Science 60: 1265-1374. [PDF]

Beck, C.A., Bowen, W.D., McMillan, J.I., and Iverson, S.J. 2003. Sex differences in diving at multiple temporal scales in a size-dimorphic capital breeder. Journal of Animal Ecology 72: 979-993. [PDF]

Muelbert, M.M.C., Bowen, W.D., and Iverson, S.J. 2003. Weaning mass affects changes in body composition and food intake in harbour seal pups during the first month of independence. Physiological and Biochemical Zoology 76: 418-427. [PDF]

Lidgard, D.C., Boness, D.J., Bowen, W.D., and McMillan, J.I. 2003. Diving behaviour during the breeding season in the terrestrial breeding male grey seal: implications for alternative mating tactics. Canadian Journal of Zoology 81: 1025-1033. [PDF]

Bowen, W.D., Ellis, S.L., Iverson, S.J., and Boness, D.J. 2003. Maternal and newborn life-history traits during periods of contrasting population trends: implications for explaining the decline of harbour seals, Phoca vitulina, on Sable Island. Journal of Zoology (London) 261: 155-163. [PDF]

Beck, C.A., Bowen, W.D., McMillan, J.I., and Iverson, S.J. 2003. Sex differences in the diving behaviour of a size dimorphic capital breeder: the grey seal. Animal Behaviour 66: 777-789. [PDF]

Beck, C.A., Bowen, W.D., and Iverson, S.J. 2003. Sex differences in the seasonal patterns of energy storage and expenditure in a phocid seal. Journal of Animal Ecology 72: 280-291. [PDF]

Austin, D. J., I. McMillan, W. D. Bowen. 2003. A three-stage algorithm for correcting ARGOS satellite locations. Marine Mammal Science 19:371-383.

2002

Zwanenburg, K. C. T., Bowen, D. W., Bundy, A., Drinkwater, K., Frank, K., O'Boyle, R., Sameoto, D., and Sinclair, M. 2002. Decadal changes in the Scotian Shelf large marine ecosystem. Sherman, K. and Skjoldal, H. R. [eds.] In Large Marine Ecosystems of the North Atlantic: Changing States and Sustainability. pp.105-150. Amsterdam, Elsevier Science.

Budge, S.M., Iverson, S.J., Bowen, W.D., and Ackman, R.G. 2002. Among and within species variability in fatty acid signatures of marine fish and invertebrates on the Scotian Shelf, Georges Bank, and southern Gulf of St. Lawrence. Canadian Journal of Fisheries and Aquatic Sciences 59: 886-898. [PDF]

Bowen, W.D., Tully, D., Boness, D.J., Bulheier, B., and Marshall, G. 2002. Prey-dependent foraging tactics and prey profitability in a marine mammal. Marine Ecology Progress Series 244: 235-245. [PDF]

Bowen, W. D., Beck, C. A., and Austin, D. 2002. Pinniped ecology. Perrin, W. F., Wursig, B., and Thewissen, H. G. M. [eds.] In Encyclopedia of Marine Mammals. pp. 911-921. Academic Press.

Beck, C.A., McMillan, J.I., and Bowen, W.D. 2002. An algorithm to improve geolocation positions using sea surface temperature and diving depth. Marine Mammal Science 18: 940-951.

Baechler, J., Beck, C.A., and Bowen, W.D. 2002. Dive shapes reveal temporal changes in the foraging behaviour of different age and sex classes in harbour seals (Phoca vitulina). Canadian Journal of Zoology 80: 1569-1577. [PDF]

2001

Lidgard, D.C., Boness, D.J., and Bowen, W.D. 2001. A novel mobile approach to investigating mating tactics in male grey seals (Halichoerus grypus). Journal of Zoology (London) 255: 313-320. [PDF]

Bowen, W. D., Read, A., and Estes, J. 2001. Feeding ecology. Hoelzel, R. [ed.] In Marine Mammals: An evolutionary approach. pp. 217-246. Blackwell.

Bowen, W. D., Harwood, J., Goodman, D., and Swartzman, G. L. 2001. Review of the November 2000 Biological Opinion and Incidental Take Statement with Respect to the Western Stock of the Steller Seal Lion, with Comments on the Draft August 2001 Biological Opinion. Anchorage, North Pacific Fisheries Management Council.

Bowen, W.D., Ellis, S.L., Iverson, S.J., and Boness, D.J. 2001. Maternal effects on offspring growth rate and weaning mass in harbour seals. Canadian Journal of Zoology 79: 1088-1101. [PDF]

Bowen, W.D., Iverson, S.J., Boness, D.J., and Oftedal, O.T. 2001. Foraging effort, food intake, and lactation performance depend on maternal mass in a small phocid seal. Functional Ecology 15: 325-334. [PDF]

2000

Mellish, J.-A.E., Iverson, S.J., and Bowen, W.D. 2000. Metabolic compensation during high energy output in fasting, lactating grey seals (Halichoerus grypus): metabolic ceilings revisited. Proceedings of the Royal Society of London B: Biological Sciences. 267: 1245-1251.

Kirsch, P.E., Iverson, S.J., and Bowen, W.D. 2000. Effect of a low-fat diet on body composition and blubber fatty acids of captive juvenile harp seals (Phoca groenlandica). Physiological and Biochemical Zoology 73: 45-59. [PDF]

Ellis, S.L., Bowen, W.D., Boness, D.J., and Iverson, S.J. 2000. Maternal effects on offspring mass and stage of development at birth in the harbour seal, Phoca vitulina. Journal of Mammalogy 81: 1143-1156. [PDF]

Bowen, W.D., Mohn, R., and McMillan, J. 2000. Grey seal pup production on Sable Island: sustained exponential growth of a large mammal population. Canadian Journal of Fisheries and Aquatic Sciences.

Bowen, W.D. 2000. Reconstruction of pinniped diets: accounting for complete digestion of otoliths and cephalopod beaks. Canadian Journal of Fisheries and Aquatic Sciences 57: 898-905. [PDF]

Beck, C.A., Bowen, W.D., and Iverson, S.J. 2000. Seasonal changes in buoyancy and diving behaviour of grey seals. Journal of Experimental Biology 203: 2323-2330. [PDF]

1999

Smith, S.J., Iverson, S.J., and Bowen, W.D. 1999. Reply: Fatty acid signatures and classification trees: new tools for investigating the foraging ecology of seals. Canadian Journal of Fisheries and Aquatic Sciences 56: 2224-2226. [PDF]

Schaeff, C.M., Boness, D.J., and Bowen, W.D. 1999. Female distribution, genetic relatedness, and fostering behavior in harbor seals, Phoca vitulina. Animal Behaviour 57: 427-434. [PDF]

Mellish, J.-A.E., Iverson, S.J., Bowen, W.D., and Hammill, M.O. 1999. Fat transfer and energetics during lactation in the hooded seal: the roles of tissue lipoprotein lipase in milk fat secretion and pup blubber deposition. Comparative Biochemistry and Physiology, B 169: 377-390. [PDF]

Mellish, J.-A.E., Iverson. S. J., and Bowen, W.D. 1999. Variation in milk production and lactation performance in grey seals and consequences for pup growth and weaning characteristics. Physiological and Biochemical Zoology 72: 677-690. [PDF]

Coltman, D.W., Bowen, W.D., and Wright, J.M. 1999. A multivariate analysis of phenotype and paternity in male harbor seals, Phoca vitulina, at Sable Island, Nova Scotia. Behavioral Ecology 10: 169-177. [PDF]

Bowen, W. D. and Siniff, D. B. 1999. Distribution, population biology, and feeding ecology of marine mammals. In Biology of Marine Mammals. Reynolds, J. E. III and Rommel, S. A. [eds.] pp. 423-484. Washington, D. C., Smithsonian Press.

Bowen, W.D., Boness, D.J., and Iverson, S.J. 1999. Diving behaviour of lactating harbour seals and their pups during maternal foraging trips. Canadian Journal of Zoology 77: 978-988. [PDF]

Bowen. W. D., Beck, C.A., and Iverson, S.J. 1999. Bioelectrical impedance analysis as a means of estimating total body water in grey seals. Canadian Journal of Zoology 77: 418-422. [PDF]

Ambs, S.M., Boness, D.J., Bowen, W.D., Perry, E.A., and Fleischer, R.C. 1999. Proximate factors associated with high levels of extraconsort fertilization in polygynous grey seals. Animal Behaviour 58: 527-535. [PDF]

1998

Whitehead, H., Bowen. W. D., Hooker, S. K., and Gowans, S. 1998. Marine mammals. In The Gully: A scientific review of its Environment and Ecosystem. Harrison, W. G. and Fenton, D. G. [eds.] pp. 186-221. Ottawa, Canada, Department of Fisheries and Oceans.

Marcus, J., Bowen, W.D., and Eddington, J.D. 1998. Effects of meal size on otolith recovery from fecal samples of gray and harbor seal pups. Marine Mammal Science 14: 789-802.

Kirsch, P.E., Iverson, S.J., Bowen, W.D., Kerr, S.R., and Ackman, R.G. 1998. Dietary effects on the fatty acid signature of whole Atlantic cod (Gadus morhua). Canadian Journal of Fisheries and Aquatic Sciences 55: 1378-1386. [PDF]

Coltman, D.W., Bowen, W.D., and Wright, J.M. 1998. Birth weight and neonatal survival of harbour seal pups are positively correlated with genetic variation measured by microsatellites. Proceedings of the Royal Society of London, B. 265: 803-809. [PDF]

Coltman, D.W., Bowen, W.D., and Wright, J. 1998. Male mating success in an aquatically mating pinniped, the harbour seal (Phoca vitulina), assessed by microsatellite DNA markers. Molecular Ecology 7: 627-638. [PDF]

Coltman, D.W., Bowen, W.D., Iverson, S.J., and Boness, S.J. 1998. The energetics of male reproduction in an aquatically mating pinniped, the harbour seal. Physiological Zoology 71: 387-399.

Bowen, W.D. and Iverson, S.J. 1998. Estimation of total body water in pinnipeds using hydrogen-isotope dilution. Physiological Zoology 71: 329-332. [PDF]

Bowen, W.D., Boness, D.J., and Iverson, S.J. 1998. Estimation of total body water in harbor seals: how useful is bioelectrical impedance analysis? Marine Mammal Science 14: 767-777

1997

Smith, S.J., Iverson, S.J., and Bowen, W.D. 1997. Fatty acid signatures and classification trees: new tools for investigating the foraging ecology of seals. Canadian Journal of Fisheries and Aquatic Sciences 54: 1377-1386. [PDF]

Coltman, D.W., Bowen, W.D., Boness, D.J., and Iverson, S.J. 1997. Balancing foraging and reproduction in male harbour seals: an aquatically mating pinniped. Animal Behaviour 54: 663-678. [PDF]

Brown, R.G., Bowen, W.D., Eddington, W.D., Kimmins, W.C., Mezei, M., Parsons, J.L., and Pohajdak, B. 1997. Temporal trends in antibody production in captive grey, harp, and hooded seals to a single administration immunocontraceptive vaccine. Journal of Reproductive Immunology. 35: 53-64.

Brown, R.G., Bowen, W.D., Eddington, W.D., Kimmins, W.C., Mezei, M., Parsons, J.L., and Pohajdak, B. 1997. Evidence for a long-lasting, single-administration contraceptive vaccine in wild grey seals. Journal of Reproductive Immunology 35: 43-51.

Bowen, W.D. 1997. Role of marine mammals in aquatic ecosystems. Marine Ecology Progress Series 158: 267-274. [PDF]

1996

Oftedal, O. T., Bowen, W. D., Boness, D. J. 1996. Lactation performance of the harp seal, Phoca groenlandica, on the ice floes off southern Labrador. Physiol. Zool. 69:635-657.

Mohn, B. and Bowen, W.D. 1996. Grey seal predation on the Eastern Scotian Shelf: modelling the impact on Atlantic cod. Canadian Journal of Fisheries and Aquatic Science 53: 2722-2738. [PDF]

Brown, R. G., Kimmins, W.C., Mezei, M., Parsons, J., Pohajdak, B., Bowen, W. D. 1996. A single-administration immunocontraceptive vaccine for grey seals. Nature. 379:30-31.

Bowen, W. D. and Harrison, G. 1996. Comparison of harbour seal diets in two habitats of Atlantic Canada. Canadian Journal of Zoology 74:125-135.

Boness, D. J. and Bowen, W. D. 1996. The evolution of maternal care in pinnipeds. BioScience 46:645-654. [PDF]

Coltman, D. W., Bowen, W. D., and Wright, J. M. 1996. PCR primers for harbour seal (Phoca vitulina concolor) microsatellites amplify polymorphic loci in other pinniped species. Molecular Ecology 5:161-163.

1995

Iverson, S. J., Hamosh, M., and Bowen, W. D. 1995. Lipoprotein lipase activity and its relationship to high milk fat transfer during lactation in grey seals. J. Comp. Physiol. B 165:384-395.

Iverson, S. J., Oftedal, O. T., Bowen, W. D., Boness, D. J., and Sampugna, J. 1995. Prenatal and postnatal transfer of fatty acids from mother to pup in the hooded seal. J. Comp. Physiol. B 165:1-12.

Boness, D. J., W. D. Bowen, and S. J Iverson. 1995. Does male harassment of females contribute to reproductive synchrony in the grey seal by affecting maternal performance? Behavioral Ecology and Sociobiology. 36:1-10.

1994

Ross, P. S., de Swart, R. L., Visser, I. K. G., Vedder, L. J., Murk, W., Bowen, W. D., Osterhaus, A. D. M. E. 1994. Relative immunocompetence of the newborn harbour seal, Phoca vitulina. Vet. Immunol. Immunopathol. 42: 331-348.

Bowen, W. D. and Harrison, G. 1994. Offshore diets of grey seals (Halichoerus grypus) near Sable Island, Canada. Marine Ecology Progress Series. 112: 1-11.

Bowen, W. D., O. T. Oftedal, D. J. Boness, and S. J. Iverson. 1994. The effect of maternal age and other factors on birth mass in harbour seals. Canadian Journal of Zoology 72:8-14.

Boness, D. J., W. D. Bowen, and O. T. Oftedal. 1994. Evidence from time-depth recorders of a foraging cycle during lactation in a small phocid, the harbour seal. Behavioral Ecology and Sociobiology 34:95-104.

1993

Bowen, W. D., J. Lawson, and B. Beck. 1993. Seasonal and geographic variation in the species composition and size of prey consumed by grey seals (Halichoerus grypus) on the Scotian Shelf. Canadian Journal of Fisheries and Aquatic Sciences 50: 1768-1778.

Muelbert, M. M. C. and W. D. Bowen. 1993. Duration of lactation and postweaning changes in mass and body composition of harbour seal pups. Canadian Journal of Zoology 71:1405-1414.

Walker, B. G. and W. D. Bowen. 1993. Mass changes and feeding behaviour in male harbour seals, Phoca vitulina, in relation to female reproductive status and male age. J. Zool. (Lond.) 231:423-436.

Walker, B. G. and W. D. Bowen. 1993. Behavioural differences among adult male harbour seals during the breeding season may provide evidence of reproductive strategies. Canadian Journal of Zoology 71:1585-1591.

Oftedal, O. T., W. D. Bowen, D. J. Boness. 1993. Energy transfer by lactating hooded seals, and nutrient deposition in their pups, during the four days from birth to weaning. Physiol. Zool. 66:366-390.

Boness, D. J., W. D. Bowen, and J. Francis. 1993. Implications of DNA fingerprinting for understanding pinniped mating systems and reproductive strategies. Symp. Zool. Soc. Lond. 66: 61-93.

Iverson, S. J., W. D. Bowen, D. J. Boness, and O. T. Oftedal. 1993. The interrelationship of maternal size and milk energy output, and its effect on pup growth in grey seals. Physiol. Zool. 66:61-88.

Ross, P. S., B. Pohajdak, W. D. Bowen, and R. F Addison. 1993. Immune function in free-ranging harbour seal mothers and their pups during lactation. J. Wildl. Diseases 29:21-29.

1992

Bowen, W. D., W. T. Stobo, and S. Smith. 1992. Mass change in grey seal pups on Sable Island: differential maternal investment reconsidered. J. Zool. (Lond). 227:607-622.

Bowen, W. D., O. T. Oftedal, and D. J. Boness. 1992. Mass and energy transfer during lactation in a small phocid, the harbour seal. Physiol. Zool. 65:844-866.

Boness, D. J., W. D. Bowen, and O. T. Oftedal. 1992. Influence of storms and maternal size on mother-pup separations and fostering in the harbour seal. Can. J. Zool. 70:1640-1644.

Lawson, J. W., G. D. Harrison, and W. D. Bowen. 1992. Factors affecting the accuracy of age determination in harp seals. Marine Mammal Sci. 8:169-171.

Ross, P. S., I. K. G. Visser, M. W. G. van de Bilt, W. D. Bowen, and A. D. E. M. Osterhaus. 1992. Antibodies to phocine distemper virus in Canadian seals. Vet. Record 130:514-516.

1991

Oftedal, O. T., W. D. Bowen, E. M. Widdowson, and D. J. Boness. 1991. The prenatal molt and its ecological significance in the hooded and harbor seal. Can. J. Zool. 69:2489-2493.

1990

Benoit, D. and W. D. Bowen. 1990. Summer diet of grey seals (Halichoerus grypus) at Anticosti Island, Gulf of St. Lawrence, Canada. Can. Bull. J. Fish. Aquat. Sci. 222:227-242.

Benoit, D. and W. D. Bowen. 1990. Seasonal and geographic variation in the diet of grey seals (Halichoerus grypus) in eastern Canada. Can. Bull. J. Fish. Aquat. Sci. 222:215-226.

Zwanenberg, K. C. T. and W. D. Bowen. 1990. Population trends of the grey seal (Halichoerus grypus) in Eastern Canada. Can. Bull. J. Fish. Aquat. Sci. 222:185-197.

1989

Oftedal, O. T., W. D. Bowen, E. M. Widdowson, and D. J. Boness. 1989. Effects of suckling and the postweaning fast on weights of the body and internal organs of harp and hooded seal pups. Biol. Neonate 56:283-300.

Myers, R. A. and W. D. Bowen. 1989. Estimating bias in aerial surveys of harp seal pup production. J. Wildl. Manage. 53:361-372.

1988

Boness, D. J., W. D. Bowen, and O. T. Oftedal. 1988. Evidence of polygyny from the spatial patterns in hooded seals (Cystophora cristata). Can. J. Zool. 66:703-706.

Oftedal, O. T., D. J. Boness, and W. D. Bowen. 1988. The composition of hooded seal milk: An adaptation for postnatal fattening. Can. J. Zool. 66:318-322.

1987

Bowen, W. D., R.A. Myers, and K. Hay. 1987. Abundance estimation of a dispersed and dynamic population: Hooded seals (Cystophora cristata) in the northwest Atlantic. Can. J. Fish. Aquat. Sci. 44:282-295.

Bowen, W. D., D. J. Boness, and O. T. Oftedal. 1987. Mass transfer from mother to pup and subsequent mass loss by the weaned pup in the hooded seal (Cystophora cristata). Can. J. Zool. 65:1-8.

1986

Roff, D. and W. D. Bowen. 1986. Analysis of population trends in the Northwest Atlantic harp seal (Phoca groenlandica) from 1967-1983. Can. J. Fish. Aquat. Sci. 43:553-564.

1985

Bowen, W. D., O. T. Oftedal, and D. J. Boness. 1985. Birth to weaning in four days: Remarkable growth in the hooded seal, (Cystophora cristata). Can. J. Zool. 63:2841-2846.

1983

Roff, D. and W. D. Bowen. 1983. The population dynamics and management of northwest Atlantic harp seals (Phoca groenlandica). Can. J. Fish. Aquat. Sci. 40:919-932.

Bowen, W. D., D. E. Sergeant, and T. Oritsland. 1983. Validation of age estimation in the harp seal (Phoca groenlandica). Can. J. Fish. Aquat. Sci. 40:1430-1441.

Bowen, W. D. and D. E. Sergeant. 1983. Mark-recapture estimates of harp seal (Phoca groenlandica) pup production in the northwest Atlantic. Can. J. Fish. Aquat. Sci. 40:728-742.

1982

Bowen, W. D. 1982. Home range and spatial organization of coyotes in Jasper National Park, Alberta. J. Wildl. Manage. 46:201-216.

Bowen, W. D. 1982. Determining age of coyotes, Canis latrans, by tooth sections and tooth-wear patterns. Can. Field-Nat. 96:339-341.

Bowen, W. D. 1982. Age structure of Northwest Atlantic harp seal catches, 1952-1980. NAFO Sci. Coun. Studies 3:53-66.

1981

Bowen, W. D., C. K. Capstick, and D. E. Sergeant. 1981. Temporal changes in the reproductive potential of female harp seals (Phoca groenlandica). Can. J. Fish. Aquat. Sci. 38:495-503.

Bowen, W. D. 1981. Variation in coyote social organization: the influence of prey size. Can. J. Zool. 59:639-652.

1980

Bowen, W. D. and I. McTaggart-Cowan. 1980. Scent marking in coyotes. Can. J. Zool. 58:473-480.

Bowen, W. D. 1980. Coyote-golden eagle interactions at an ungulate carcass. J. Mammal. 61:376-377.

1978

Bowen, W. D. and R. J. Brooks. 1978. Social organization of confined male collared lemmings (Dicrostonyx groenlandicus Traill). Anim. Behav. 26:1126-1135.

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Books and Book Chapters: 21

21. Iverson, S. J., Sparling, C. E., Williams, T., Lang, S.L.C., and Bowen, W. D. 2010. Measurement of individual and population energetics of marine mammals, p. 191-221. In Boyd, I. L., Bowen, W. D., and Iverson, S. J. (Eds.), Marine Mammal Ecology and Conservation: A handbook of techniques, Oxford University Press, Oxford, U. K.

20. Bowen, W. D. and Northridge, S. 2010. Morphometrics, age estimation, and growth, p. 98-118. In Boyd, I. L., Bowen, W. D., and Iverson, S. J. (Eds.), Marine Mammal Ecology and Conservation: A handbook of techniques, Oxford University Press, Oxford, U. K.

19. Tollit, D., Pierce, G.J., Hobson, K. A., Bowen, W. D., and Iverson, S. J. 2010. Diet, p. 165-190. In Boyd, I. L., Bowen, W. D., and Iverson, S. J. (Eds.), Marine Mammal Ecology and Conservation: A handbook of techniques, Oxford University Press, Oxford, U. K.

18. Bowen, W. D., Baker, J. D., Boyd, I. L., Estes, J. A., Ford, J. K. B., Kraus, S. D., Siniff, D., Stirling, I., and Wells, R. S. 2010. Long-term studies, p.  283-305. In Boyd, I. L., Bowen, W. D., and Iverson, S. J. (Eds.), Marine Mammal Ecology and Conservation: A handbook of techniques, Oxford University Press, Oxford, U. K.

17. Boyd, I. L., Bowen, W. D., and Iverson, S. J. 2010. Marine Mammal Ecology and Conservation: A handbook of techniques, Oxford University Press. 450p. [PDF]

16. Bowen, W. D., Beck, C. A., and Austin, D. 2009. Pinniped ecology, p. 852-860. In Encyclopedia of Marine Mammals. Second Edition. W. F. Perrin, B. Wursig, and H. G. M. Thewissen (Eds.). Academic Press

15. Bowen, W. D. 2009. Maternal effects in offspring growth and development in pinnipeds. In Maternal Effects in Mammals. Maestripieri, D. and J. Mateo (Eds.). p. 104-132. Chicago University Press. [PDF]

14. NRC 2005. (12 authors, including W. D. Bowen) Final Comments on a Science Plan for the North Pacific Research Board. 33p. National Academy Press, Washington, D.C. (NRC)

13. NRC 2004. (12 authors, including W. D. Bowen) Elements of a Science Plan for the North Pacific Research Board. 125p. National Academy Press, Washington, D.C.

12. NRC. 2002. (11 authors, including W. D. Bowen) A Century of Ecosystem Science. Planning Long-Term Research in the Gulf of Alaska. 94p. National Academy press, Washington, D.C.

11. Zwanenburg, K.C.T., D. Bowen, A. Bundy, K. Drinkwater, K. Frank, R. O'Boyle, D. Sameoto, and M. Sinclair. 2002. Decadal changes in the Scotian Shelf large marine ecosystem, p. 105-150. In K. Sherman and H.R. Skjoldal, eds. Large Marine Ecosystems of the North Atlantic: Changing States and Sustainability. Elsevier Science, Amsterdam.

10. Bowen, W. D., Beck, C. A., and Austin, D. 2002. Pinniped ecology, p. 911- In Encyclopedia of Marine Mammals. W. F. Perrin, B. Wursig, and H. G. M. Thewissen (Eds.). Academic Press.

9. Bowen, W. D., Read, A., and Estes, J. 2002. Feeding ecology. p. 217-246. In Hoelzel, R. Marine mammals: An evolutionary approach. Blackwell.

8. Bowen, W. D. and Siniff, D. 1999. Distribution, population biology, and feeding ecology of marine mammals, p. 423-484. In Biology of Marine Mammals. J.E. Reynolds, III and S.A. Rommel (Eds.). Smithsonian Institution Press, Washington, D.C.

7. NRC. 1996. The Bering Sea Ecosystem. National Academy Press, Washington, D.C. 307pp. (11 authors with W.D. Bowen).

6. Bowen, W. D. 1991. Behavioural ecology of pinniped neonates, p. 66-127. In D. Renouf (Ed.), Behaviour of Pinnipeds. Chapman and Hall, London.

5. Bowen, W. D. (Ed.). 1990. Population biology of sealworm (Psuedoterranova decipiens) in relation to its intermediate and seal hosts. Can. Bull. J. Fish. Aquat. Sci. 222. 306p.

4. Bowen, W. D. 1985. Harp seal feeding and interactions with commercial fisheries in the Northwest Atlantic, p. 135-152. In J. R. Beddington, R. J. H. Beverton, and D. M. Lavigne (Eds.), Marine Mammals and Fisheries. George Allen and Unwin Publishers, London.

3. Bowen, W. D. 1985. The coyote (Canis latrans Say). In D. MacDonald (Ed.), The Carnivores. Elsevier, Oxford.

2. Bowen, W. D. 1983. The harp seal, p. 209-213. In D. Pursley and G. Deems (Eds.), North American Furbearers: A contemporary reference. Inter. Assoc. Fish and Wildl. Agencies.

1. Bowen, W. D. 1983. The hooded seal, p. 215-217. In D. Pursley and G. Deems (Eds.), North American Furbearers: A contemporary reference. Inter. Assoc. Fish and Wildl. Agencies.

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Other Reports or Publications: 54

54. Bowen, W. D., den Heyer, C. and M. Hammill. 2011. Pup production at Scotian Shelf grey seal (Halichoerus grypus) colonies in 2010. DFO Can. Sci. Advis. Sec. Res. Doc. 2011/0xx.

53. Bowen, W. D. 2011. Historical Grey Seal Abundance and Changes in the Abundance of Grey Seal Predators in the Northwest Atlantic. DFO Can. Sci. Advis. Sec. Res. Doc. 2011/026.

52.  Bowen, W. D., Carter, P. and Hammill, M. 2011. Estimated Grey Seal Diets near Sable Island Derived from Fecal Samples: 1991 to 2010. DFO Can. Sci. Advis. Sec. Res. Doc. 2011/024.

51. Bowen, W. D. and Iverson, S. J. 2011. Sources of Bias and Uncertainty in Seal Diet Composition: Hard Part and Fatty Acid Analysis. DFO Can. Sci. Advis. Sec. Res. Doc. 2011/025.

50. Bowen, W. D. and Lidgard, D. 2011. Vertebrate Predator Control: Effects on Prey Populations in Terrestrial and Aquatic Ecosystems. DFO Can. Sci. Advis. Sec. Res. Doc. 2011/028.

49. DFO. 2011. Impacts of Grey Seals on Fish Populations in Eastern Canada. DFO Can. Sci. Advis. Sec. Sci. Advis. Rep. 2010/071.

48. Hammill, M. O., Bowen, W. D., and Blanchard, W. 2009. Timing of grey seal pupping on Hay Island. DFO Can. Sci. Advis. Sec. Res. Doc. 2009/091.

47. Trzcinski, M. K., Mohn, R. and Bowen, W. D.  2009. Estimating the impact of grey seals on the Eastern Scotian Shelf and Western Scotian Shelf cod populations.  DFO Can. Sci. Advis. Sec. Res. Doc. 2009/052.

46. Bowen, W. D., Hammill, M. O., Koen-Alonso, M., Stenson, G., Swain, D.P., and Trzcinski K.  2009. Proceedings of the National Workshop on the Impacts of Seals on Fish Populations in Eastern Canada (Part 2) CSAS, Proceedings 2009/020

45. Thomas, L., Hammill, M. O., and Bowen, W. D. 2008. Assessment of population consequences of harvest strategies for the Northwest Atlantic grey seal population. CSAS Research Document 2008/078.

44. Bowen, W. D., Gage, L., Goodman, D., and Lowry, L. 2008. Report of the Independent Review Panel on the National Marine Fisheries Service’s Implementation of the Permit Program for Research on Steller Sea Lions and Northern Fur Seals. 48p.

43. Bowen, W. D., Boness, D. J., and Lowry, L. F.  2007. Review of the 2007 Draft Steller Sea Lion Recovery Plan. Prepared for The North Pacific Fishery Management Council Review contracted by the North Pacific Research Board, July 2007, 24p.

42. Thomas, L., Hammill, M. O., and Bowen, W. D. 2007.  Estimated size of the Northwest Atlantic grey seal population 1977-2007. CSAS Research Document 2007/082.

41. Bowen, W. D., Hammill, M. O., Koen-Alonso, M., Stenson, G., Swain, D.P., and Trzcinski K.  2008. Proceedings of the National Workshop on the Impacts of Seals on Fish Populations in Eastern Canada (Part 1). CSAS, Proceedings 2008/021.

40. Lidgard, D. and Bowen, W. D. 2008. Behavioural interactions between predators and their prey in marine ecosystems. CSAS Research Document 2008/032

39. Bowen, W.D, McMillan, J.I., Lidgard, D., and Blanchard, W. 2007. Continued reduction in population growth rate of grey seals at Sable Island. CSAS Research Document  2007/087

38. Bowen, W. D., Boness, D. J., and Lowry, L. L. 2007. Review of the 2007 Draft Steller Sea Lion Recovery Plan. For the The North Pacific Fishery Management Council. July 2007. 25 p.

37. Zwanenburg, K.C.T., Bundy, A., Strain, P., Bowen, W.D., Breeze, H., Campana, S.E., Hannah, C., Head, and Gordon, D. 2006. Implications of ecosystem dynamics for the management of the eastern Scotian Shelf. Can. Tech. Rep. Fish. Aquat. Sci. 2652: xiii, 91 p.

36. Trzcinski, M. K., Mohn, R. and Bowen, W.D. 2005. Estimation of grey seal population size and trends at Sable Island. DFO Can. Sci. Advis. Sec. Res. Doc. 2005/067.

35. Bowen, W.D, McMillan, J.I., and Blanchard, W. 2005. Reduced rate of increase in grey seals at Sable Island: an estimate of 2004 pup production. DFO Can. Sci. Advis. Sec. Res. Doc. 2005/068.

34. Bowen, W.D. 2005. From the Editor: Reflections with comments on the collection and analysis of data. Marine Mammal Science 21:178-183.

33. Thiemann, G.W., Budge, S.M., Bowen, W.D., and Iverson, S.J. 2004. Comment on Grahl-Nielsen et al. (2003) 'Fatty acid composition of the adipose tissue of polar bears and of their prey: ringed seals, bearded seals and harp seals. Marine Ecology Progress Series 281: 297-301.

32. Bowen, W. D. 2004. Report of Seal Exclusion Zone Workshop. DFO Can. Sci. Advis. Sec., Proceed. Ser. 2004/022.

31. Bowen, W. D., Harwood, J, Goodman, D. and Swartzman, G. L. 2001. Review of the November 2000 Biological Opinion and Incidental Take Statement with Respect to the Western Stock of the Steller Seal Lion, with Comments on the Draft August 2001 Biological Opinion. Report to the North Pacific Fisheries Management Council, September 2001.

30. Reeves, R. (Ed.). Canadian recovery plan for the North Atlantic right whale. DFO, Ottawa.

29. Boudreau, P. R., and 23 other authors, including W. D. Bowen. 1999. The possible environmental impacts of petroleum exploration activities on the Georges Bank ecosystem. Can. Tech. Rep. Fish. Aquat. Sci. 2259.

28. Bowen, W. D., Goodman, D., Northridge, S. P., Swain, D. P., and Swartzman, G. L. 1999. Report of the Independent Review of the scientific bases for the 3 Dec 98 Biological Opinion regarding interactions between Steller sea lions and Bering Sea and Gulf of Alaska pollock fisheries. Report to the North Pacific Fisheries Management Council, April 1999.

27. Whitehead, H., Bowen, W. D., Hooker, S. K., and Cowans, S. 1998. Marine Mammals, p 186-221. In Harrison, W. G. and Fenton, D. G. (Eds.), The Gully: A scientific review of its environment and ecosystem. CSAS Research Doc. 98/83.

26. Anon. 1997. Report of the Workshop on harp seal-fishery interactions in the Northwest Atlantic: Toward research and management actions. 24-27 Feb. 1997, St. John's, NF. Sponsored by Canadian Centre for Fisheries Innovation and Memorial University of Newfoundland. (W. D. Bowen served as one of two rapporteurs).

25. Mohn, B. and Bowen, W. D. 1994. A model of the effect of culling and female contraception on the population dynamics of Sable Island grey seals. DFO Atlantic Fisheries Research Doc. 94/xx.

24. Mohn, B. and Bowen, W. D. 1994. A model of grey seal predation on 4VsW cod and its effects on the dynamics and potential yield of cod. DFO Atlantic Fisheries Research Doc. 94/64.

23. Bowen, W. D. 1993. The population energetics of seals on the Scotian Shelf. BIO Review 91/92, p. 13-17.

22. Bowen, W. D. 1992. Book review of Harps and Hoods: Ice-breeding seals of the northwest Atlantic. Marine Mammal Sci. 8:94-95.

21. Bowen, W. D. 1989. Book review of Approaches to Marine Mammal Energetics. Amer. Sci. 77:496.

20. Bowen, W. D. 1988. Sealworm (Pseudoterronova decipiens), grey seals, and fisheries: A review. ICES C.M. 1988/N:6, Session O.

19. Bowen, W. D. (Ed.). 1987. A review of stock structure in the Gulf of Maine Area: A workshop report. CAFSAC Res. Doc. 87/21. 51p.

18. Zwanenberg, K. C. T., W. D. Bowen, and D. E. Sergeant. Assessment of northwest Atlantic grey seal pup production for 1977 to 1984. CAFSAC Res. Doc. 85/67.

17. Hay, K., R. A. Myers, and W. D. Bowen. 1985. Estimation of pup production of hooded seals (Cystophora cristata) in the Northwest Atlantic during March 1984. NAFO/SCR Doc. 85/1/14. Serial No. N948. [PDF]

16. Bowen, W. D. and D. E. Sergeant. 1985. A mark-recapture estimate of harp seal pup production in 1983. NAFO/SCR Doc. 85/1/1. Serial No. N935. [PDF]

15. Bowen, W. D. 1985. An estimate of the proportion of recovered harp seal tags not returned for reward: the 1983 mark-recapture experiment. NAFO/SCR Doc. 85/1/2. Serial No. N936. [PDF]

14. Bowen, W. D. and K. Hay. 1983. Observation on pup growth and the condition of lactating female hooded seals. Inter. Workshop on the biology of Hooded Seals, Bergen, Norway.

13. Bowen, W. D. 1983. The harp seal. Underwater World Factsheet. DFO 8p.

12. Winters, G., K. Hay, and W. D. Bowen. 1982. Review of the demography of hooded seals in the northwest Atlantic. ICES Ad Hoc Working Group on Harp and Hooded Seals, Copenhagen.

11. Roff, D. and W. D. Bowen. 1981. Population dynamics of harp seals, 1967-1980. NAFO/SCR Doc. 81/11/166. Serial No. N474. [PDF]

10. Bowen, W. D. 1981. Further estimates of harp seal pup production between 1978 and 1980 from mark-recapture. NAFO/SCR Doc. 81/11/153. Serial No. N460. [PDF]

9. Bowen, W. D. and D. E. Sergeant. 1981. Mean age at sexual maturity and age-specific pregnancy rates of Northwest Atlantic harp seals in 1980 and 1981. NAFO/SCR Doc. 81/11/152. Serial No. N459. [PDF]

8. Bowen, W. D. 1981. Harp seals and their foods: How do they interact? NAFO/SCR Doc. 81/11/154. Serial No. N461. [PDF]

7. Roff, D. and W. D. Bowen. 1980. One, two, many: How many harp seals are there? NAFO/SCR Doc. 80/11/161. Serial No. N248. [PDF]

6. Doubleday, W. G. and W. D. Bowen. 1980. Inconsistencies in reading the age of harp seal teeth, their consequences, and a means of reducing resulting bias. NAFO/SCR Doc. 80/11/160. Serial No. N247. [PDF]

5. Bowen, W. D. and D. E. Sergeant. 1980. Estimates of harp seal pup production from mark-recapture experiments. NAFO/SCR Doc. 80/11/162. Serial No. N248. [PDF]

4. Bowen, W. D. and G. H. Winters. 1979. On population size and sustainable yield in northwest Atlantic harp seals. NAFO/SCR Doc. 79/11/12. Serial No. N023. [PDF]

3. Bowen, W. D. and D. E. Sergeant. 1979. Research on the population biology of harp seals in 1979. NAFO/SCR Doc. 79/11/3. Serial No. N014. [PDF]

2. Bowen, W. D. 1979. Changes in harp seal reproductive parameters: Another look. NAFO/SCR Doc. 79/11/1. Serial No. N012. [PDF]

1. Bowen, W. D. 1979. A mark-recapture experiment to determine harp seal pup production on the Front in 1979. NAFO/SCR Doc. 79/11/4. Serial No. N015. [PDF]

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