Resultado de búsqueda
1 de feb. de 2018 · Polar Bears Really Are Starving Because of Global Warming, Study Shows. New science sheds more light on recent controversy over how much the large carnivores are being impacted by melting sea...
Terrestrial and marine denning habitats for polar bears are increasingly disappearing and under threat from climate change and human and industrial influence. Sea ice is essential for polar bears and, in addition to hunting, resting, and finding mates, many polar bears have historically used sea ice as a platform for their maternal dens.
World Wildlife Magazine. Fall 2015. Polar Bear Habitat Loss is Pushing Them over the Edge. A new plan for resilience in a warming Arctic. © Fotofeeling. Issue: Fall 2015. "Polar bears are the Michael Phelps of marine mammals," says Elisabeth Kruger, a WWF program officer based in Anchorage, Alaska.
Disturbance Seismic blasting, construction, transportation and operation of oil facilities can negatively affect polar bears. Destruction of habitat If a major oil spill occurs at or near areas with high concentrations of polar bear denning sites, for example Hopen Island in the Barents Sea, it could have population-wide consequences.There is ...
20 de jul. de 2020 · Peter Barritt/Superstock, via Alamy. Share full article. 248. By Henry Fountain. July 20, 2020. Polar bears could become nearly extinct by the end of the century as a result of shrinking sea...
20 July 2020. By Helen Briggs and Victoria Gill,Science correspondents, BBC News. Katharina M Miller. Sea ice is declining in the Arctic in both thickness and extent. Polar bears will be wiped...
19 de nov. de 2015 · This update also highlights habitat degradation as a main threat to many fungus species and over-fishing as the key driver of decline in marine bony fish. The IUCN Red List now includes 79,837 assessed species, of which 23,250 are threatened with extinction. The re-assessment of the polar bear ( Ursus maritimus) used the most current ...
