Why Orcas have been lingering longer in the Arctic - NPR
2021年12月3日 · Orcas are lingering longer in the Arctic Ocean, as sea ice there shrinks. The whales often travel to access varieties of prey, but it's likely there are now more hunting opportunities in...
Orcas / Killer Whale Facts and Adaptations - Orcinus orca in …
Orcas are the largest of all carnivores on earth that feed on a wide variety of foods, they are found in almost all oceans, from the tropics to the Arctic and Antarctic where they will go deep into the pack-ice to hunt seals and penguins. They are commonest in coastal waters and in cool temperate and sub polar seas.
As Arctic Sea Ice Melts, Killer Whales Are Moving In
2021年12月3日 · One of the ocean’s most fearsome predators is muscling into new parts of the icy Arctic Ocean. Orcas, also known as killer whales, are showing up in places they’ve never been spotted before.
Distributions of Arctic and Northwest Atlantic killer whales inferred ...
2021年3月24日 · Global distribution patterns of killer whales (Orcinus orca) indicate they are most abundant in coastal, high-latitude waters of both hemispheres, with lower densities occurring …
As Arctic Sea Ice Retreats, Orcas Are on the Move, Spurring …
2021年12月3日 · As sea ice melts because of climate change, orcas—also known as killer whales—are venturing into once-icy waters. Their expansion into the Arctic has cascading effects on the food web, other...
Killer whales lingering in increasingly ice-free Arctic Ocean
2021年12月3日 · Continuous reduction in sea ice in the Arctic Ocean is opening areas to increased killer whale dwelling and predation, potentially creating an ecological imbalance. Underwater microphones placed off the western and northern coasts of Alaska show that killer whales have spent more time than previously recorded in the Arctic, following the ...
Orcas are spreading further into the Arctic Ocean as sea ice melts
2021年12月2日 · Orcas are venturing much further into the Arctic Ocean and more frequently, perhaps due to decreasing sea ice in the region caused by climate change. Their growing presence could threaten...
Killer Whales Find Prey Bonanza in Melting Arctic - The New York Times
2021年12月2日 · Melting Arctic Is a Bonanza for the Ocean’s Natural Born Killers. Audio recordings in Arctic seas show orcas in waters that were once blocked by ice, and the effects are being felt up and down ...
Killer whales ( Orcinus orca ) in the Canadian Arctic: Distribution ...
2011年7月1日 · Killer whales (Orcinus orca) have a global distribution, but many high-latitude populations are not well studied. We provide a comprehensive review of the history and ecology of killer whales in the Canadian Arctic, for which there has previously been little information.
A review of Canadian Arctic killer whale (Orcinus orca) ecology
2020年3月16日 · The killer whale (Orcinus orca (Linnaeus, 1758)) is a widely distributed marine predator with a broad ecological niche at the species level with evidence of specialization and narrow ecological niches among populations.