Zobrazeno 1 - 10
of 343
pro vyhledávání: '"Christian Lydersen"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract The Arctic is experiencing rapid reductions in sea ice, affecting all ice-dependant species. In the present study we examine interannual seasonal movements and habitat use in relation to sea ice coverage for one of the Arctic endemic marine
Externí odkaz:
https://doaj.org/article/941ab98e50ea439d983c364b18fe12bd
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract Despite the well-documented, broad global distribution of sperm whales (Physeter macrocephalus), their distributional patterns remain poorly known in Arctic regions, where year-round monitoring is challenging. Adult male sperm whales are kno
Externí odkaz:
https://doaj.org/article/ea429b36624b47a3b108c11247a7aac0
Publikováno v:
Polar Research, Vol 42, Pp 1-9 (2023)
Herein we describe mating behaviour observed in a group of 20 white whales in Svalbard, Norway. A single female was the centre of attention during the 45-minute encounter, which was observed, photographed and videotaped at an ice edge in Storfjorden
Externí odkaz:
https://doaj.org/article/62524555cd4a46148c0a17e00160859b
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
The Svalbard Archipelago, Norway, is warming rapidly, resulting in environmental change that is likely already affecting the underwater soundscape, a critical habitat feature for marine mammals. Baseline information about current sound levels is need
Externí odkaz:
https://doaj.org/article/d8a3a8a56c2143fdadc68c700e1b6b64
Autor:
Ludmila Sromek, Eeva Ylinen, Mervi Kunnasranta, Simo N. Maduna, Tuula Sinisalo, Craig T. Michell, Kit M. Kovacs, Christian Lydersen, Evgeny Ieshko, Elena Andrievskaya, Vyacheslav Alexeev, Sonja Leidenberger, Snorre B. Hagen, Tommi Nyman
Publikováno v:
Ecology and Evolution, Vol 13, Iss 10, Pp n/a-n/a (2023)
Abstract Studies on host–parasite systems that have experienced distributional shifts, range fragmentation, and population declines in the past can provide information regarding how parasite community richness and genetic diversity will change as a
Externí odkaz:
https://doaj.org/article/6f5043bf8c9e48c1a24c0a63aafa0bef
Autor:
José Cerca, Michael V. Westbury, Mads Peter Heide-Jørgensen, Kit M. Kovacs, Eline D. Lorenzen, Christian Lydersen, Olga V. Shpak, Øystein Wiig, Lutz Bachmann
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract The East Greenland-Svalbard-Barents Sea (EGSB) bowhead whale stock (Balaena mysticetus) was hunted to near extinction and remains Endangered on the International Union of Conservation of Nature Red List. The intense, temporally extensive hun
Externí odkaz:
https://doaj.org/article/1454000ea311460bbfff8a9cfd2cae98
Publikováno v:
Polar Research, Vol 41, Pp 1-13 (2022)
Species with similar ecological requirements that overlap in range tend to segregate their niches to minimize competition for resources. However, the niche segregation possibilities for centrally foraging predators that breed on isolated Subantarctic
Externí odkaz:
https://doaj.org/article/5b8f01207adb4a649aa23548e8deed3d
Publikováno v:
Polar Research, Vol 41, Pp 1-15 (2022)
This study uses cetacean sighting data, acquired via a citizen science programme, to update distributions and spatial trends of whales and dolphins in waters around the Svalbard Archipelago during the period 2005–2019. Distributions, based on kerne
Externí odkaz:
https://doaj.org/article/81f72e48b6a64308b4e960e40da5148d
Publikováno v:
Pathogens, Vol 12, Iss 7, p 937 (2023)
The impacts of climate change on the health of marine mammals are increasingly being recognised. Given the rapid rate of environmental change in the Arctic, the potential ramifications on the health of marine mammals in this region are a particular c
Externí odkaz:
https://doaj.org/article/7a05300811344355868d4f733c905947
Autor:
Alison C. Cleary, Joseph I. Hoffman, Jaume Forcada, Christian Lydersen, Andrew D. Lowther, Kit M. Kovacs
Publikováno v:
Ecology and Evolution, Vol 11, Iss 20, Pp 14003-14011 (2021)
Abstract Ice is one of the most important drivers of population dynamics in polar organisms, influencing the locations, sizes, and connectivity of populations. Antarctic fur seals, Arctocephalus gazella, are particularly interesting in this regard, a
Externí odkaz:
https://doaj.org/article/5721e136fbf041f38bc2ab91e09f5f9b