Posts Tagged «Kristin Laidre»

Heide-Jørgensen, M.P., K.L. Laidre, D. Borchers, T.A. Marques, H. Stern, and M. Simon, 2010, The effect of sea-ice loss on beluga whales (Delphinapterus leucas) in West Greenland’, Polar Research, doi:10.1111/j.1751-8369.2009.00142.x, 2010.

Heide-Jørgensen, M.P., K. L. Laidre, Ø. Wiig, L. Postma, L. Dueck, L. Bachmann, “Large scale sexual segregation of bowhead whales”, Endangered Species Research 13:73-78, 2010.

An international team of researchers, including Kristin Laidre, conducted a study involving genetic variability in polar bears. Read about the study in Animal Conservation.

Scavenging on stranded large whale carcasses may have aided polar bear survival through past interglacial periods, during which sea‐ice was limited and access to seals was reduced. Will whales play a similar role in the future as Arctic conditions change? To learn more, read the recent study led by PSC’s Kristin Laidre in the journal Frontiers in Ecology and the Environment.

Hobbs, R.C., K. L. Laidre, D. J. Vos, and B. A. Mahoney. 2005. Movements and area use of belugas, Delphinapterus leucas, in a subarctic Alaskan estuary. Arctic 58(4): 331-340.

The Washington Post covered new research findings on narwhal physiology and asked PSC’s Kristin Laidre what it will mean for the species in a changing Arctic. 

The US Fish and Wildlife Service recently released their Conservation Management Plan (CMP) for the polar bear. Required under the Endangered Species Act, the CMP outlines what must be done for a species to recover and avoid extinction. Kristin Laidre comments for the New York Times.

Hunt, G.L., Jr., Drinkwater, K.F., Arrigo, K., Berge, J., Daly, K.L., Danielson, S., Daase, M., Hop, H., Isla, E., Karnovsky, N., et al., including Kristin Laidre. 2016. Advection in polar and sub-polar environments: Impacts on high latitude marine ecosystems. Progress in Oceanography.149: 40-81.

Recent research by Kristin Laidre and Harry Stern on the impacts of climate change on Arctic narwhals is published in Polar Biology.  See the article in Conservation Magazine.

Erica Escajeda and Kristin Laidre were part of an international team of researchers that studied polar bear maternity dens and compared current data with previously published data through the 1990s. Read the findings published in Polar Biology.

Expeditionary artist Maria Coryell-Martin has traveled to Niaqornat, Greenland with Kristin Laidre to document the work being done to monitor narwhals.  Maria will be posting field updates with photos and artwork through mid-April.

Koblitz J.C., Stilz P., Rasmussen M.H., Laidre K.L. (2016) Highly Directional Sonar Beam of Narwhals (Monodon monoceros) Measured with a Vertical 16 Hydrophone Array. PLoS ONE 11(11): e0162069. doi:10.1371/journal.pone.0162069

Koch, A., Rosing-Asvid, A., Rajala, E.L., Born, E.W., Bonefeld-Jørgensen, E., Mulvad, G., Laidre, K., Tryland, M., Magnusson, U., Sonne, C., Jenssen, B.M., Andersen-Ranberg, E., Eulaers, I., Desforges, J., Mosbacher, J.B., Gustavson, K., Schmidt, N., Dietz, R., Siebert, U., Grøndahl, C., Agerholm, J.S., Wiig, Ø., Prevalence of antibodies against Brucella spp. in West Greenland polar bears (Ursus maritimus) and East Greenland muskoxen (Ovibos moschatus), Polar Biol (2018).

Koski, W. R., M. P. Heide-Jørgensen, K. L. Laidre. 2006. Winter abundance of bowhead whales, Balaena mysticetus, in Hudson Strait in March 1981. Journal of Cetacean Research and Management 8(2): 139-144.

Kutschera, V. E., Frosch, C., Janke, A., Skírnisson, K., Bidon, T., Lecomte, N., Fain, S. R., Eiken, H. G., Hagen, S. B., Arnason, U., Laidre, K. L., Nowak, C. and Hailer, F. (2016), High genetic variability of vagrant polar bears illustrates importance of population connectivity in fragmented sea ice habitats. Anim Conserv, 19: 337–349. doi:10.1111/acv.12250

Laidre K. L., M. P. Heide-Jørgensen, R. Dietz, R. C. Hobbs, and O. A. Jørgensen. 2003. Deep-diving by narwhals, Monodon monoceros: differences in foraging behavior between wintering areas? Marine Ecology Progress Series 261:269-281.

Laidre K. L., M. P. Heide-Jørgensen, O. A. Jørgensen, and M. A. Treble. 2004. Deep ocean predation by a high Arctic cetacean. ICES Journal of Marine Science 61(3): 430-440.

Laidre K. L., M. P. Heide-Jørgensen, M. L. Lodgson, R. C. Hobbs, R. Dietz, and G. R. VanBlaricom. 2004. Fractal analysis of narwhal space use patterns. Zoology 107(1): 3-11.

Laidre K. L., and M. P. Heide-Jørgensen. 2005. Winter feeding intensity of narwhals. Marine Mammal Science 21(1): 45-57.

Laidre K. L.,  H. Stern, E. W. Born, P. Heagerty, S, Atkinson, Ø. Wiig, N. J. Lunn, E. V. Regehr, R. McGovern, M. Dyck. 2018.  Changes in winter and spring resource selection by polar bears Ursus maritimus in Baffin Bay over two decades of sea-ice loss. Endangered Species Research 36:1-14.

Laidre K. L., E. W. Born, S. N. Atkinson, Ø. Wiig, L. W. Andersen, N. J. Lunn, M. Dyck, E. V. Regehr, R. McGovern and P. Heagerty. 2018.  Range contraction and increasing isolation of a polar bear subpopulation in an era of sea ice loss. Ecology and Evolution DOI: 10.1002/ece3.3809

Laidre, K. L., M. P. Heide-Jørgensen, and T. G. Nielsen. 2007. The role of the bowhead whale as a predator in West Greenland. Marine Ecology Progress Series 346: 285-297.

Laidre, K. L., Stirling, I. , Estes, J. A., Kochnev, A. and Roberts, J. (2018), Historical and potential future importance of large whales as food for polar bears. Front Ecol Environ.

Laidre, K. L. and E. V. Regehr. 2018. Arctic marine mammals. In “Encyclopedia of Marine Mammals” (Bernd Würsig, J.G.M. Thewissen, and Kit M. Kovacs, eds.), 3rd edition. Pp 34-40. Academic Press/Elsevier, San Diego, CA, USA.

Laidre, K. L., S. N. Atkinson, E. V. Regehr, H. L. Stern, E. W. Born, Ø. Wiig, N. J. Lunn, M. Dyck, P. Heagerty, and B. R.Cohen. 2020. Transient benefits of climate change for a high‐Arctic polar bear (Ursus maritimus) subpopulation. GlobalChange Biology 26:6251‐6265.

Laidre, K., Heide-Jorgensen, H. Stern, and P. Richard, 2012, Unusual narwahl sea ice entrapments and delayed autumn freeze-up trends, Polar Biology, 35, 149-154, doi: 10.007/s00300-001-1036-8

Laidre, K. L., Stern, H., Kovacs, K. M., Lowry, L., Moore, S. E., Regehr, E. V., Ferguson, S. H., Wiig, Ø., Boveng, P., Angliss, R. P., Born, E. W., Litovka, D., Quakenbush, L., Lydersen, C., Vongraven, D. and Ugarte, F. (2015), Arctic marine mammal population status, sea ice habitat loss, and conservation recommendations for the 21st century. Conservation Biology. doi: 10.1111/cobi.12474

Laidre, K.L., A.D. Northey, F. Ugarte, (2018). Traditional Knowledge About Polar Bears (Ursus maritimus) in East Greenland: Changes in the Catch and Climate Over Two Decades. Frontiers in Marine Science, 5,

Laidre, K. L., M. P. Heide-Jørgensen, and T. G. Nielsen,’ The role of the bowhead whale as a predator in West Greenland’, Marine Ecology Progress Series, 346: 285-297,2007.

Laidre, K.L., R.J. Jameson, E. Gurarie, S.J. Jeffries, and H. Allen,’ Spatial habitat use patterns of sea otters in coastal Washington’, J. Mammal., 90, 906-917, 2009.

Laidre, K. L., M. P. Heide-Jørgensen, and J. Orr,’ Reactions of narwhals, Monodon monoceros, to killer whale, Orcinus orca, attacks in the eastern Canadian High Arctic’,Canadian Field Naturalist, 120(4): 457–465., 2006.

Laidre, K. L., M. P. Heide-Jørgensen,’ Using narwhals as oceanographic sampling platforms in the high Arctic’, Oceanography, in press, 2007.

Laidre, K.L., I. Stirling, L. Lowry, Ø. Wiig, M. P. Heide-Jørgensen, and S. Ferguson,’ Quantifying the sensitivity of arctic marine mammals to climate-induced habitat change’, Ecological Applications, 18(2):S97-S125, 2007.

Laidre, K. L., M. P Heide-Jørgensen, J. Nyland, A. Mosbech, and D. Boertmann, “Latitudinal gradients in sea ice and primary production determine Arctic seabird colony size in Greenland”, Proceedings of the Royal Society B. 275: 2695–2702 doi:10.1098/rspb.2008.0874, 2008.

Laidre, K.L., P. Heagerty, M.P. Heide-Jørgensen, L. Witting, and M. Simon,’ Sexual segregation of common minke whales (Balaenoptera acutorostrata) and sex ratio of catches in Greenland’, ICES J. Mar. Sci, 66, 2253-2266, 2009.

Laidre, K. L., M. P. Heide-Jørgensen, W. Ermold, and M. Steele, Narwhals document continued warming of Baffin Bay, J. Geophys. Res., 115: C10049, doi:10.1029/2009JC005820, 2010.

Laidre, K. L., M. P. Heide-Jørgensen, P. Heagerty, A. Cossio, B. Bergstrom, and M. Simon, “Spatial associations between large baleen whales and their prey in West Greenland”, Marine Ecology Progress Series 402:269-284, 2010.

Laidre, K. L., M. P. Heide-Jørgensen, M. L. Logsdon, L. Delwiche, T. G. Nielsen, “A whale of an opportunity: Examining the vertical structure of high Arctic waters using space-based ocean observations and instrumented marine predators”, Marine Biology Research 6:519-529, 2010.

Laidre K.L. and M.P. Heide-Jørgensen, “Life in the lead: Extreme densities of narwhals in the offshore pack ice”, Marine Ecology Progress Series. In Press, 2011

Laidre, K. L., and M. P. Heide-Jørgensen. 2012. Springtime partitioning of Disko Bay, West Greenland by Arctic and sub-Arctic baleen whales. ICES Journal of Marine Science. In Press.

Laidre K. L., Moon T., Hauser D.D.W., McGovern R., Heide-Jørgensen M.P., Dietz R., Hudson B., Use of glacial fronts by narwhals (Monodon monoceros) in West Greenland. Biol. Lett. 12: 20160457,, 2016.

Laidre, K.L., and E.V. Regehr. 2017. Arctic marine mammals and sea ice. Pages 516-533 in D. Thomas (Ed.), Sea Ice 3rd Edition. West Sussex, United Kingdom: John Wiley & Sons Ltd.  ISBN: 978-1-118-77838-8

Lander, M., A. J. Westgate, B. C. Balmer, J. P. Reid, M. J. Murray, and K. L. Laidre. 2018. “Tagging and Tracking”, Chapter 32 in CRC Handbook of Marine Mammal Medicine, 3rd Edition. F. M. D. Gulland, L. A. Dierauf, K. L. Whitman (Eds), pages 767-798.

A rotating crew of international scientists embarked on a research cruise in the Arctic and investigated the causes and effects of ice loss by monitoring the ice across its entire seasonal life cycle. UW polar scientist Kristin Laidre remarks, to Andy Isaacson of National Geographic, how further loss of sea ice could affect the Arctic marine ecosystem, from algae to polar bears.

Moore, G., Steele, M., Schweiger, A.J., Zhang, J., and Laidre, K.L., Thick and old sea ice in the Beaufort Sea during summer 2020/21 was associated with enhanced transport. Commun Earth Environ 3, 198, doi:10.1038/s43247-022-00530-6, 2022.

The Seattle Times reports on the Arctic-wide analysis of changes in sea ice that have the greatest impact on polar bears, conducted by the PSC’s Harry Stern and Kristin Laidre.

Polar Science Center investigator Kristin Laidre was recently featured in an online article on the Pacific Science Center’s website.  This article about her work with narwhals was based on her recent “Science Cafe” presentation in Kirkland.  The whole presentation entitled “Uncovering the Mysteries of the Narwhal” is on-line here.

NASA’s Sea Level News provides more details on the agency teaming up with PSC’s Kristin Laidre to further the Oceans Melting Greenland (OMG) project in progress. Data gathered by tagged narwhals will expand our understanding of both narwhal behavior and melting glaciers. Click below to learn more about the research endeavor and how the partnership came about…

Atlas Obscura covers a recent study led by former PSC postdoc Donna Hauser, along with Kristin Laidre and Harry Stern. The travel source shares how increased ship traffic in the Arctic increases the vulnerability of many marine mammals, especially the narwhal.

Narwhals are intentionally a part of NASA’S project, Oceans Melting Greenland (OMG). PSC’s Kristin Laidre explains why the whales play a vital role in studying the ice in a recent story from The Washington Post/Bloomberg News and presented by their various news outlets