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Dr Will Rayment

Contact DetailsWillRayment

Office: 310 Castle Street, room 210
Tel: 64 3 479 8304
Email: will.rayment@otago.ac.nz

Academic Qualifications

BA, Oxford
MSc, University College London
PhD, University of Otago

Research Interests

  • Ecology and conservation biology of cetaceans
  • Capture-recapture methods and analyses
  • Species-habitat relationships
  • Efficacy of Marine Protected Areas and MPA networks

Courses

MARI 112 Global Marine Systems - course co-ordinator
MARI 302 Biology and Behaviour of Marine Vertebrates
MARI 401 Advanced Methods in Marine Science
MARI 429 Coastal Marine Environment -joint course co-ordinator
OCEN 301 Practical and Field Oceanography
ZOOL 418 Conservation Biology of Marine Mammals

Postgraduate Students

Tom Brough - Thesis Title (PhD):Next steps for management: population and spatial ecology of Hector's dolphins at Banks Peninsula.

Matthew Desmond - Thesis Title (PhD):Kelp forest response to light limitation in southern New Zealand

Marta Guerra - Thesis Title (PhD):Habitat use and foraging ecology of a declining population of sperm whales at Kaikoura, New Zealand

Jordan Housiaux - Thesis Title (MSc):Exploring the murky world of the sevengill shark, Notorynchus cepedianus, in southern New Zealand

David Johnston - Thesis Title (MSc):Social aspects of demographic stochasticity in an endangered population of bottlenose dolphin (Tursiops truncatus)

Rob Lewis - Thesis Title (MSc): Population demographics of sevengill sharks (Notorynchus cepedianus) in Paterson Inlet, Stewart Island.

Tamlyn Somerford - Thesis Title (MSc):Sperm whale population dynamics and social structure

María Valdés Hernández - Thesis Title (PhD): Effect of mussel farms on Hector’s dolphin, Cephalorhynchus hectori hectori, at Banks Peninsula, New Zealand: an ecosystem perspective

Lindsay Wickman - Thesis Title (MSc):The effects of a decreasing mark rate on precision of estimates of survival rate of Hector’s dolphins

Lana Young - Thesis Title (MSc): Identifying and Facilitating Habitat for Juvenile Pāua Settlement

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Publications

Guerra, M., Hickmott, L., van der Hoop, J., Rayment, W., Leunissen, E., Slooten, E., & Moore, M. (2017). Diverse foraging strategies by a marine top predator: Sperm whales exploit pelagic and demersal habitats in the Kaikōura submarine canyon. Deep Sea Research Part I. Advance online publication. doi: 10.1016/j.dsr.2017.08.012

Torres, L. G., Rayment, W., Olavarría, C., Thompson, D. R., Graham, B., Baker, C. S., … Carroll, E. L. (2017). Demography and ecology of southern right whales Eubalaena australis wintering at sub-Antarctic Campbell Island, New Zealand. Polar Biology, 40(1), 95-106. doi: 10.1007/s00300-016-1926-x

Webster, T. A., Dawson, S. M., Rayment, W. J., Parks, S. E., & Van Parijs, S. M. (2016). Quantitative analysis of the acoustic repertoire of southern right whales in New Zealand. Journal of the Acoustical Society of America, 140(1), 322-333. doi: 10.1121/1.4955066

Rayment, W., Dawson, S., & Webster, T. (2015). Breeding status affects fine-scale habitat selection of southern right whales on their wintering grounds. Journal of Biogeography, 42(3), 463-474. doi: 10.1111/jbi.12443

Urian, K., Gorgone, A., Read, A., Balmer, B., Wells, R. S., Berggren, P., … Rayment, W., & Hammond, P. S. (2015). Recommendations for photo-identification methods used in capture-recapture models with cetaceans. Marine Mammal Science, 31(1), 298-321. doi: 10.1111/mms.12141

Chapter in Book - Research

Tregenza, N., Dawson, S., Rayment, W., & Verfuss, U. (2016). Listening to echolocation clicks with PODs. In W. W. L. Au & M. O. Lammers (Eds.), Listening in the ocean: New discoveries and insights on marine life from autonomous passive acoustic recorders. (pp. 163-206). New York: Springer. doi: 10.1007/978-1-4939-3176-7_7

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Journal - Research Article

Torres, L. G., Rayment, W., Olavarría, C., Thompson, D. R., Graham, B., Baker, C. S., … Carroll, E. L. (2017). Demography and ecology of southern right whales Eubalaena australis wintering at sub-Antarctic Campbell Island, New Zealand. Polar Biology, 40(1), 95-106. doi: 10.1007/s00300-016-1926-x

Guerra, M., Hickmott, L., van der Hoop, J., Rayment, W., Leunissen, E., Slooten, E., & Moore, M. (2017). Diverse foraging strategies by a marine top predator: Sperm whales exploit pelagic and demersal habitats in the Kaikōura submarine canyon. Deep Sea Research Part I. Advance online publication. doi: 10.1016/j.dsr.2017.08.012

O'Connell-Milne, S. A., Poulin, R., Savage, C., & Rayment, W. (2016). Reduced growth, body condition and foot length of the bivalve Austrovenus stutchburyi in response to parasite infection. Journal of Experimental Marine Biology & Ecology, 474, 23-28. doi: 10.1016/j.jembe.2015.09.012

Twist, B. A., Rayment, W. J., & Hepburn, C. D. (2016). Movement patterns of adult scallops (Pecten novaezealandiae) within a customary fisheries reserve: Implications for fine scale spatial management. Fisheries Research, 174, 160-166. doi: 10.1016/j.fishres.2015.09.020

O'Connell-Milne, S., Savage, C., & Rayment, W. (2016). The influence of commercial harvesting on parasite infection in the bivalve Austrovenus stutchburyi. Canadian Journal of Fisheries & Aquatic Sciences, 73, 982-989. doi: 10.1139/cjfas-2015-0401

Twist, B. A., Hepburn, C. D., & Rayment, W. J. (2016). Distribution of the New Zealand scallop (Pecten novaezealandiae) within and surrounding a customary fisheries area. ICES Journal of Marine Science, 73(2), 384-393. doi: 10.1093/icesjms/fsv228

Dittmann, S., Dawson, S., Rayment, W., Webster, T., & Slooten, E. (2016). Hector's dolphin movement patterns in response to height and direction of ocean swell. New Zealand Journal of Marine & Freshwater Research, 50(2), 228-239. doi: 10.1080/00288330.2015.1119165

Webster, T. A., Dawson, S. M., Rayment, W. J., Parks, S. E., & Van Parijs, S. M. (2016). Quantitative analysis of the acoustic repertoire of southern right whales in New Zealand. Journal of the Acoustical Society of America, 140(1), 322-333. doi: 10.1121/1.4955066

Urian, K., Gorgone, A., Read, A., Balmer, B., Wells, R. S., Berggren, P., … Rayment, W., & Hammond, P. S. (2015). Recommendations for photo-identification methods used in capture-recapture models with cetaceans. Marine Mammal Science, 31(1), 298-321. doi: 10.1111/mms.12141

Rayment, W., Dawson, S., & Webster, T. (2015). Breeding status affects fine-scale habitat selection of southern right whales on their wintering grounds. Journal of Biogeography, 42(3), 463-474. doi: 10.1111/jbi.12443

Carroll, E. L., Rayment, W. J., Alexander, A. M., Baker, C. S., Patenaude, N. J., Steel, D., … Childerhouse, S. (2014). Reestablishment of former wintering grounds by New Zealand southern right whales. Marine Mammal Science, 30(1), 206-220. doi: 10.1111/mms.12031

Guerra, M., Dawson, S. M., Brough, T. E., & Rayment, W. J. (2014). Effects of boats on the surface and acoustic behaviour of an endangered population of bottlenose dolphin. Endangered Species Research, 24(3), 221-236. doi: 10.3354/esr00598

Henderson, S. D., Dawson, S. M., Rayment, W., & Currey, R. J. C. (2013). Are the 'resident' dolphins of Doubtful Sound becoming less resident? Endangered Species Research, 20(2), 99-107. doi: 10.3354/esr00484

Turek, J., Slooten, E., Dawson, S., Rayment, W., & Turek, D. (2013). Distribution and abundance of Hector's dolphins off Otago, New Zealand. New Zealand Journal of Marine & Freshwater Research, 47(2), 181-191. doi: 10.1080/00288330.2013.771687

Gormley, A. M., Slooten, E., Dawson, S., Barker, R. J., Rayment, W., du Fresne, S., & Bräger, S. (2012). First evidence that marine protected areas can work for marine mammals. Journal of Applied Ecology, 49(2), 474-480. doi: 10.1111/j.1365-2664.2012.02121.x

Rayment, W., Davidson, A., Dawson, S., Slooten, E., & Webster, T. (2012). Distribution of southern right whales on the Auckland Islands calving grounds. New Zealand Journal of Marine & Freshwater Research, 46(3), 431-436. doi: 10.1080/00288330.2012.697072

Elliott, R. G., Dawson, S. M., & Rayment, W. J. (2012). Optimizing T-pod settings and testing range of detection for bottlenose dolphins in Doubtful Sound, New Zealand. Journal of the Marine Biological Association of the United Kingdom, 92(8), 1901-1907. doi: 10.1017/s002531541100035x

Rayment, W., Clement, D., Dawson, S., Slooten, E., & Secchi, E. (2011). Distribution of Hector's dolphin (Cephalorhynchus hectori) off the West Coast, South Island, New Zealand, with implications for the management of bycatch. Marine Mammal Science, 27(2), 398-420. doi: 10.1111/j.1748-7692.2010.00407.x

Rayment, W., Dawson, S., Scali, S., & Slooten, L. (2011). Listening for a needle in a haystack: Passive acoustic detection of dolphins at very low densities. Endangered Species Research, 14, 149-156. doi: 10.3354/esr00356

Rayment, W., Dawson, S., & Slooten, E. (2010). Seasonal changes in distribution of Hector's dolphin at Banks Peninsula, New Zealand: Implications for protected area design. Aquatic Conservation, 20(1), 106-116. doi: 10.1002/aqc.1049

Rayment, W., Dawson, S., & Slooten, L. (2010). Use of T-PODS for acoustic monitoring of Cephalorhynchus dolphins: A case study with Hector's dolphins in a marine protected area. Endangered Species Research, 10(1), 333-339. doi: 10.3354/esr00189

Poorbagher, H., Lamare, M. D., Barker, M. F., & Rayment, W. (2010). Relative importance of parental diet versus larval nutrition on development and phenotypic plasticity of Pseudechinus huttoni larvae (Echinodermata: Echinoidea). Marine Biology Research, 6(3), 302-314. doi: 10.1080/17451000903300877

Rayment, W., Dawson, S., & Slooten, L. (2009). Trialling an automated passive acoustic detector (T-POD) with Hector's dolphins (Cephalorhynchus hectori). Journal of the Marine Biological Association of the United Kingdom, 89(5), 1015-1022. doi: 10.1017/S0025315409003129

Rayment, W., Dawson, S., Slooten, E., Bräger, S., Du Fresne, S., & Webster, T. (2009). Kernel density estimates of alongshore home range of Hector's dolphins at Banks Peninsula, New Zealand. Marine Mammal Science, 25(3), 537-556. doi: 10.1111/j.1748-7692.2008.00271.x

Rayment, W., & Webster, T. (2009). Observations of Hector's dolphins (Cephalorhynchus hectori) associating with inshore fishing trawlers at Banks Peninsula, New Zealand. New Zealand Journal of Marine & Freshwater Research, 43(4), 911-916. doi: 10.1080/00288330909510049

Slooten, E., Dawson, S., Rayment, W., & Childerhouse, S. (2006). A new abundance estimate for Maui's dolphin: What does it mean for managing this critically endangered species? Biological Conservation, 128(4), 576-581. doi: 10.1016/j.biocon.2005.10.013

Slooten, E., Rayment, W., & Dawson, S. (2006). Offshore distribution of Hector's dolphins at Banks Peninsula, New Zealand: Is the Banks Peninsula Marine Mammal Sanctuary large enough? New Zealand Journal of Marine & Freshwater Research, 40(2), 333-343. doi: 10.1080/00288330.2006.9517425

Slooten, E., Dawson, S. M., & Rayment, W. J. (2004). Aerial surveys for coastal dolphins: Abundance of Hector's dolphins off the South Island west coast, New Zealand. Marine Mammal Science, 20(3), 477-490. doi: 10.1111/j.1748-7692.2004.tb01173.x

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Journal - Research Other

Rayment, W. J. (2014). [Review of the book Whales and dolphins of Aotearoa New Zealand]. Journal of the Royal Society of New Zealand, 44(2-3), 103-104. doi: 10.1080/03036758.2014.930052

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