Blar i forfatter "Lowther, Andrew"

Viser treff 1-6 av 6

    • The genetic legacy of extreme exploitation in a polar vertebrate 

      Paijmans, Anneke; Stoffel, Martin A.; Bester, Marthán N.; Cleary, Alison Clare; de Bruyn, P.J. Nico; Forcada, Jaume; Goebel, M; Goldsworthy, S.D.; Guinet, Christophe; Lydersen, Christian; Kovacs, Kit M.; Lowther, Andrew; Hoffman, Joseph I. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-20)
      Understanding the effects of human exploitation on the genetic composition of wild populations is important for predicting species persistence and adaptive potential. We therefore investigated the genetic legacy of large-scale commercial harvesting by reconstructing, on a global scale, the recent demographic history of the Antarctic fur seal (Arctocephalus gazella), a species that was hunted to the ...

    • Intra-season variations in distribution and abundance of humpback whales in the West Antarctic Peninsula using cruise vessels as opportunistic platforms 

      John Elling Deehr, Johannessen; Biuw, Martin; Lindstrøm, Ulf Ove; Ollus, Victoria Marja Sofia; Martín López, Lucía Martina; Gkikopoulou, Kalliopi C.; Oosthuizen, Wessel Chris; Lowther, Andrew (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-09)
      Fine-scale knowledge of spatiotemporal dynamics in cetacean distribution and abundance throughout the Western Antarctic Peninsula (WAP) is sparse yet essential for effective ecosystem-based management (EBM). Cruise vessels were used as platforms of opportunity to collect data on the distribution and abundance of humpback whales (Megaptera novaeangliae) during the austral summer of 2019/2020 in a ...

    • Large-scale seabird community structure along oceanographic gradients in the Scotia Sea and northern Antarctic Peninsula 

      Ollus, Victoria Marja Sofia; Biuw, Martin; Lowther, Andrew; Fauchald, Per; John Elling Deehr, Johannessen; Martín López, Lucía Martina; Gkikopoulou, Kalliopi C.; Oosthuizen, W. Chris; Lindstrøm, Ulf Ove (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-18)
      Introduction: The Scotia Sea and Antarctic Peninsula are warming rapidly and changes in species distribution are expected. In predicting habitat shifts and considering appropriate management strategies for marine predators, a community-level understanding of how these predators are distributed is desirable. Acquiring such data, particularly in remote areas, is often problematic given the cost ...

    • Niches of marine mammals in the European Arctic 

      MacKenzie, Kirsteen M.; Lydersen, Christian; Haug, Tore; Routti, Heli Anna Irmeli; Aars, Jon; Andvik, Clare Margaret; Borgå, Katrine; Fisk, A.T.; Meier, Sonnich; Biuw, Martin; Lowther, Andrew; Lindstrøm, Ulf Ove; Kovacs, Kit M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-11)
      The Arctic is warming rapidly, with concomitant sea ice losses and ecosystem changes. The animals most vulnerable to Arctic food web changes are long-lived and slow-growing such as marine mammals, which may not be able to adapt rapidly enough to respond to changes in their resource bases. To determine the current extent and sources of these resource bases, we examined isotopic and trophic niches ...

    • Pathogen surveillance in Southern Ocean pinnipeds 

      Núñez-Egido, Sandra; Lowther, Andrew; Nymo, Ingebørg H.; Klein, Jörn; Breines, Eva Marie; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-17)
      Knowledge of the health status and potential effect of disease outbreaks among Southern Ocean fauna may be decisive for its conservation. We assessed the exposure and infection of Antarctic fur seals (<i>Arctocephalus gazella</i>, AFS) and Southern elephant seals (<i>Mirounga leonine</i>, SES) to parapoxvirus, <i>Phocid alphaherpesvirus-1</i> (PhHV-1), smooth <i>Brucella</i> spp. and <i>Toxoplasma ...

    • A review of the scientific knowledge of the seascape off Dronning Maud Land, Antarctica 

      Lowther, Andrew; von Quillfeldt, Cecilie; Assmy, Philipp; de Steur, Laura; Descamps, Sebastien; Divine, Dmitry V; Elvevold, Synnøve; Forwick, Matthias; Fransson, Agneta; Fraser, Alexander; Gerland, Sebastian; Granskog, Mats A.; Hallanger, Ingeborg G.; Hattermann, Tore; Itkin, Mikhail; Hop, Haakon; Husum, Katrine; Kovacs, Kit M.; Lydersen, Christian; Matsuoka, Kenichi; Miettinen, Arto; Moholdt, Geir; Moreau, Sebastien; Myhre, Per Inge; Orme, Lisa; Pavlova, Olga; Tandberg, Anne Helene S. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-29)
      Despite the exclusion of the Southern Ocean from assessments of progress towards achieving the Convention on Biological Diversity (CBD) Strategic Plan, the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) has taken on the mantle of progressing eforts to achieve it. Within the CBD, Aichi Target 11 represents an agreed commitment to protect 10% of the global coastal and ...