Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Rikke G. Hansen"'
Publikováno v:
Polar Research, Vol 43, Pp 1-5 (2024)
Our limited knowledge of the marine mammal fauna in northernmost Greenland and Canada, specifically north of 80°N, relies largely on opportunistic observations collected during expeditions with different objectives. The narwhal (Monodon monoceros) m
Externí odkaz:
https://doaj.org/article/f378e6ccb4c5452cb3145637d42c7e49
Autor:
Outi M. Tervo, Marie Louis, Mikkel-Holger S. Sinding, Mads Peter Heide-Jørgensen, Rikke G. Hansen
Publikováno v:
Polar Research, Vol 42, Pp 1-4 (2023)
The Spitsbergen population of bowhead whales (Balaena mysticetus) was harvested to near extinction during the whaling era. Here, we show possible signs of recovery of the population by reporting observations of two calves in the Scoresby Sund polynya
Externí odkaz:
https://doaj.org/article/d630d6082b84486394bef3f6dca83924
Autor:
Mads Peter Heide‐Jørgensen, Susanna B. Blackwell, Terrie M. Williams, Mikkel Holger S. Sinding, Mikkel Skovrind, Outi M. Tervo, Eva Garde, Rikke G. Hansen, Nynne H. Nielsen, Mạnh Cường Ngô, Susanne Ditlevsen
Publikováno v:
Ecology and Evolution, Vol 10, Iss 15, Pp 8073-8090 (2020)
Abstract The narwhal (Monodon monoceros) is a high‐Arctic species inhabiting areas that are experiencing increases in sea temperatures, which together with reduction in sea ice are expected to modify the niches of several Arctic marine apex predato
Externí odkaz:
https://doaj.org/article/aaeb443d613f42c1a29bbb0591dd467e
Autor:
Mads Peter Heide-Jørgensen, Susanna B. Blackwell, Outi M. Tervo, Adeline L. Samson, Eva Garde, Rikke G. Hansen, Manh Cu’ò’ng Ngô, Alexander S. Conrad, Per Trinhammer, Hans C. Schmidt, Mikkel-Holger S. Sinding, Terrie M. Williams, Susanne Ditlevsen
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
One of the last pristine marine soundscapes, the Arctic, is exposed to increasing anthropogenic activities due to climate-induced decrease in sea ice coverage. In this study, we combined movement and behavioral data from animal-borne tags in a contro
Externí odkaz:
https://doaj.org/article/2a7e671242f8464d98cc6498b757a6c9
Autor:
Outi M. Tervo, Marie Louis, Mikkel-Holger S. Sinding, Mads Peter Heide-Jørgensen, Rikke G. Hansen
Publikováno v:
Tervo, O M, Louis, M, Sinding, M-H S, Heide-Jørgensen, M P & Hansen, R G 2023, ' Possible signs of recovery of the nearly extirpated Spitsbergen bowhead whales : calves observed in east Greenland ', Polar Research, vol. 42, 8809 . https://doi.org/10.33265/polar.v42.8809
The Spitsbergen population of bowhead whales (Balaena mysticetus) was harvested to near extinction during the whaling era. Here, we show possible signs of recovery of the population by reporting observations of two calves in the Scoresby Sund polynya
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0823b9778520b8761f4726944eb71b9
https://curis.ku.dk/portal/da/publications/possible-signs-of-recovery-of-the-nearly-extirpated-spitsbergen-bowhead-whales(9e909940-0b84-46b0-a4a1-56fc5c3a4d53).html
https://curis.ku.dk/portal/da/publications/possible-signs-of-recovery-of-the-nearly-extirpated-spitsbergen-bowhead-whales(9e909940-0b84-46b0-a4a1-56fc5c3a4d53).html
Autor:
Susanna B Blackwell, Outi M Tervo, Alexander S Conrad, Mikkel H S Sinding, Rikke G Hansen, Susanne Ditlevsen, Mads Peter Heide-Jørgensen
Publikováno v:
PLoS ONE, Vol 13, Iss 6, p e0198295 (2018)
Changes in climate are rapidly modifying the Arctic environment. As a result, human activities-and the sounds they produce-are predicted to increase in remote areas of Greenland, such as those inhabited by the narwhals (Monodon monoceros) of East Gre
Externí odkaz:
https://doaj.org/article/319eee6587504a42837b3f01dd1c6fa7
Autor:
Mads Peter Heide-Jørgensen, Kristin Laidre, Sabrina Fossette, Marianne H Rasmussen, Nynne Hjort Nielsen, Rikke G Hansen
Publikováno v:
NAMMCO Scientific Publications, Vol 9, Iss 0, Pp 159-171 (2014)
Walruses (Odobenus rosmarus) are exploited for subsistence purposes in West Greenland. However, current information about the abundance of walruses subject to harvest in eastern Baffin Bay subject to harvest has been unavailable despite being critica
Externí odkaz:
https://doaj.org/article/906762f5d5a24a7fa791451126fd3e7e
Autor:
Outi M. Tervo, Susanna B. Blackwell, Mạnh Cường Ngô, Eva Garde, Nynne H. Nielsen, Mads Peter Heide-Jørgensen, Mikkel-Holger S. Sinding, Rikke G. Hansen, Susanne Ditlevsen, Mikkel Skovrind, Terrie M. Williams
Publikováno v:
Ecology and Evolution, Vol 10, Iss 15, Pp 8073-8090 (2020)
Ecology and Evolution
Heide-Jørgensen, M P, Blackwell, S B, Williams, T M, Sinding, M H S, Skovrind, M, Tervo, O M, Garde, E, Hansen, R G, Nielsen, N H, Ngô, M C & Ditlevsen, S 2020, ' Some like it cold : Temperature-dependent habitat selection by narwhals ', Ecology and Evolution, vol. 10, no. 15, pp. 8073-8090 . https://doi.org/10.1002/ece3.6464
Ecology and Evolution
Heide-Jørgensen, M P, Blackwell, S B, Williams, T M, Sinding, M H S, Skovrind, M, Tervo, O M, Garde, E, Hansen, R G, Nielsen, N H, Ngô, M C & Ditlevsen, S 2020, ' Some like it cold : Temperature-dependent habitat selection by narwhals ', Ecology and Evolution, vol. 10, no. 15, pp. 8073-8090 . https://doi.org/10.1002/ece3.6464
The narwhal (Monodon monoceros) is a high‐Arctic species inhabiting areas that are experiencing increases in sea temperatures, which together with reduction in sea ice are expected to modify the niches of several Arctic marine apex predators. The S
Autor:
Eva Garde, Susanna B. Blackwell, Heide-Jørgensen Mads Peter, Outi M. Tervo, Alexander S. Conrad, Susanne Ditlevsen, Rikke G. Hansen, Adeline L. Samson
Publikováno v:
Tervo, O M, Blackwell, S B, Ditlevsen, S, Conrad, A S, Samson, A L, Garde, E, Hansen, R G & Heide-Jørgensen, M P 2021, ' Narwhals react to ship noise and airgun pulses embedded in background noise ', Biology Letters, vol. 17, no. 11, 20210220 . https://doi.org/10.1098/rsbl.2021.0220
Biology Letters
Biology Letters
Anthropogenic activities are increasing in the Arctic, posing a threat to niche-conservative species with high seasonal site fidelity, such as the narwhalMonodon monoceros. In this controlled sound exposure study, six narwhals were live-captured and
Autor:
Rikke G. Hansen, Steven H. Ferguson, Patricia A. Hall, Thomas Doniol-Valcroze, Jeff W. Higdon
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
Bowhead whales (Balaena mysticetusL., 1758) of the Eastern Canada-West Greenland population have been hunted by Inuit for millennia. Significant commercial harvests, conducted by European and American whalers for about 400 years, ended ca. 1915. A sm