Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Jack Orr"'
Autor:
Alexander J Smith, Jeff W Higdon, Pierre Richard, Jack Orr, Warren Bernhardt, Steven H Ferguson
Publikováno v:
PLoS ONE, Vol 12, Iss 8, p e0181045 (2017)
To understand beluga whale (Delphinapterus leucas) estuarine use in the Nelson River estuary, southwest Hudson Bay, we recorded and examined beluga movements and habitat associations for the July through August period in 2002-2005. We compared locati
Externí odkaz:
https://doaj.org/article/dc471b8c66564468b265bdce8753b02b
Publikováno v:
California Agriculture, Vol 46, Iss 4, Pp 25-27 (1992)
During alfalfa stand establishment, an oat companion crop helps fight weeds and can increase first-cutting forage yield, experiments indicate. No long-term negative impacts on alfalfa production were observed.
Externí odkaz:
https://doaj.org/article/de7077394072477cb063dd42ec1cd4f5
Autor:
Kit M. Kovacs, Thomas G. Smith, Christian Lydersen, Lois A. Harwood, Lori T. Quakenbush, Jack Orr, Robert Suydam, Tatiana Ferrer, Greg O’Corry-Crowe, D. I. Litovka
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-21 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-21 (2020)
Evolutionary explanations for mammalian sociality typically center on inclusive-fitness benefits of associating and cooperating with close kin, or close maternal kin as in some whale societies, including killer and sperm whales. Their matrilineal str
Publikováno v:
Polar Biology. 41:2053-2063
Arctic pack ice structure and extent have been changing due to warming. Thus, understanding important habitat features for marine mammals that depend on sea ice, such as narwhal (Monodon monoceros), during winter will provide insight into impacts of
Autor:
Andrew L. Von Duyke, Michael F. Cameron, Mads Peter Heide-Jørgensen, Brendan P. Kelly, Chadwick V. Jay, Gregory O'Corry Crowe, Pierre Richard, John J. Citta, Peter L. Boveng, Justin A. Crawford, Robert Suydam, Lois A. Harwood, Jack Orr, Marianne Marcoux, Josh M. London, Alex Whiting, D. I. Litovka, Anthony S. Fischbach, John C. George, Lloyd F. Lowry, Roderick C. Hobbs, Lori T. Quakenbush, Mark Nelson, Tom Gray, Kathryn J. Frost, Amy S. Kennedy
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 152:132-153
We collated available satellite telemetry data for six species of ice-associated marine mammals in the Pacific Arctic: ringed seals (Pusa hispida; n = 118), bearded seals (Erignathus barbatus, n = 51), spotted seals (Phoca largha, n = 72), Pacific wa
Publikováno v:
Canadian Journal of Zoology. 95:41-50
In Canada, narwhals (Monodon monoceros L., 1758) are divided into the Baffin Bay (BB) and northern Hudson Bay (NHB) populations. Satellite tracking of 21 narwhals from BB and NHB provided information on their diving behaviour and was used to identify
Publikováno v:
Endangered Species Research, Vol 31, Pp 259-270 (2016)
Cumberland Sound, an inlet on Baffin Island, Nunavut, Canada, is undergoing changes in sea ice cover, which is affecting the marine food web. A small population of beluga whales Delphinapterus leucas inhabits Cumberland Sound year round and this popu
Autor:
Kristin H. Westdal, Margaret A. Treble, Andrew E. Derocher, Christine M. Anderson, William A. Montevecchi, Lynne Dickson, Nicholas J. Lunn, Marie Auger-Méthé, Bernard LeBlanc, Anders Mosbech, David Grémillet, Lisa L. Loseto, Pierre Richard, Mark L. Mallory, Laura A. McFARLANE-TRANQUILLA, John Iacozza, Aaron T. Fisk, Nigel E. Hussey, Nora C. Spencer, Steven T. Kessel, Tanya M. Brown, Jérôme Fort, Ron R. Togunov, Erik W. Born, Grant Gilchrist, Blake Bartzen, Jack Orr, Sarah N.P. Wong, Steven H. Ferguson, Frankie Jean-Gagnon, Lois A. Harwood, David J. Yurkowski, Paul J. Blanchfield, Shanti E. Davis, Mark Maftei, Aqqalu Rosing-Asvid, Evan S. Richardson, Marianne Marcoux, Rune Dietz, Kevin J. Hedges
Publikováno v:
Diversity and Distributions
Diversity and Distributions, Wiley, In press, ⟨10.1111/ddi.12860⟩
Great Lakes Institute for Environmental Research Publications
Yurkowski, D J, Auger-Méthé, M, Mallory, M L, Wong, S N P, Gilchrist, G, Derocher, A E, Richardson, E, Lunn, N J, Hussey, N E, Marcoux, M, Togunov, R R, Fisk, A T, Harwood, L A, Dietz, R, Rosing-Asvid, A, Born, E W, Mosbech, A, Fort, J, Grémillet, D, Loseto, L, Richard, P R, Iacozza, J, Jean-Gagnon, F, Brown, T M, Westdal, K H, Orr, J, LeBlanc, B, Hedges, K J, Treble, M A, Kessel, S T, Blanchfield, P J, Davis, S, Maftei, M, Spencer, N, McFarlane-Tranquilla, L, Montevecchi, W A, Bartzen, B, Dickson, L, Anderson, C & Ferguson, S H 2019, ' Abundance and species diversity hotspots of tracked marine predators across the North American Arctic ', Diversity and Distributions, vol. 25, no. 3, pp. 328-345 . https://doi.org/10.1111/ddi.12860
Diversity and Distributions, In press, ⟨10.1111/ddi.12860⟩
Diversity and Distributions, Wiley, In press, ⟨10.1111/ddi.12860⟩
Great Lakes Institute for Environmental Research Publications
Yurkowski, D J, Auger-Méthé, M, Mallory, M L, Wong, S N P, Gilchrist, G, Derocher, A E, Richardson, E, Lunn, N J, Hussey, N E, Marcoux, M, Togunov, R R, Fisk, A T, Harwood, L A, Dietz, R, Rosing-Asvid, A, Born, E W, Mosbech, A, Fort, J, Grémillet, D, Loseto, L, Richard, P R, Iacozza, J, Jean-Gagnon, F, Brown, T M, Westdal, K H, Orr, J, LeBlanc, B, Hedges, K J, Treble, M A, Kessel, S T, Blanchfield, P J, Davis, S, Maftei, M, Spencer, N, McFarlane-Tranquilla, L, Montevecchi, W A, Bartzen, B, Dickson, L, Anderson, C & Ferguson, S H 2019, ' Abundance and species diversity hotspots of tracked marine predators across the North American Arctic ', Diversity and Distributions, vol. 25, no. 3, pp. 328-345 . https://doi.org/10.1111/ddi.12860
Diversity and Distributions, In press, ⟨10.1111/ddi.12860⟩
Aim: Climate change is altering marine ecosystems worldwide and is most pronounced in the Arctic. Economic development is increasing leading to more disturbances and pressures on Arctic wildlife. Identifying areas that support higher levels of predat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0736ab2ba8ed3bc7321429241ade1e85
https://hal.archives-ouvertes.fr/hal-01977912/document
https://hal.archives-ouvertes.fr/hal-01977912/document
Autor:
Gregory O'Corry-Crowe, Kathryn J. Frost, Helen Aderman, Denis I. Litovka, Robert Suydam, Ben Tinker, Marianne Marcoux, Lori T. Quakenbush, Tom Gray, Lloyd F. Lowry, Roderick C. Hobbs, Pierre Richard, John J. Citta, Jack Orr, Matthew L. Druckenmiller
Publikováno v:
Marine Mammal Science. 33:236-250
At least five populations (stocks) of beluga whales (Delphinapterus leucas) are thought to winter in the Being Sea, including the Bristol Bay, Eastern Bering Sea (Norton Sound), Anadyr, Eastern Chukchi Sea, and Eastern Beaufort Sea (Mackenzie) popula
Autor:
Jack Orr, Amanda N. Barkley, Nigel E. Hussey, Steven H. Ferguson, Kevin J. Hedges, Aaron T. Fisk
Publikováno v:
Biological Sciences Publications
The deep-sea is increasingly viewed as a lucrative environment for the growth of resource extraction industries. To date, our ability to study deep-sea species lags behind that of those inhabiting the photic zone limiting scientific data available fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a55f9f78d5cb1c3ebcea85f616be24e1
https://scholar.uwindsor.ca/biologypub/1193
https://scholar.uwindsor.ca/biologypub/1193