Impacts of changing sea-ice conditions on Arctic marine mammals
Kovacs, K.M.; Lydersen, Ch.; Overland, J.E.; Moore, S.E. (2011). Impacts of changing sea-ice conditions on Arctic marine mammals. Mar. Biodiv. Spec. Issue 41(1): 181-194
In: Marine Biodiversity. Springer: Heidelberg; Berlin. ISSN 1867-1616; e-ISSN 1867-1624, meer
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| Trefwoorden |
Aquatic organisms > Marine organisms > Aquatic mammals > Marine mammals
Climatic changes
Conservation
Deterioration
Extinction of species
Habitat
Interspecific relationships > Competition
Management
PN, Arctisch [Marine Regions]
Marien/Kust |
| Auteurs | | Top |
- Kovacs, K.M.
- Lydersen, Ch.
- Overland, J.E., redacteur
- Moore, S.E.
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| Abstract |
Arctic sea ice has changed dramatically, especially during the last decade and continued declines in extent and thickness are expected for the decades to come. Some ice-associated marine mammals are already showing distribution shifts, compromised body condition and declines in production/abundance in response to sea-ice declines. In contrast, temperate marine mammal species are showing northward expansions of their ranges, which are likely to cause competitive pressure on some endemic Arctic species, as well as putting them at greater risk of predation, disease and parasite infections. The negative impacts observed to date within Arctic marine mammal populations are expected to continue and perhaps escalate over the coming decade, with continued declines in seasonal coverage of sea ice. This situation presents a significant risk to marine biodiversity among endemic Arctic marine mammals. |
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