Jakarta Globe – AFP, Oct 02, 2014
Los Angeles. At least 35,000 walruses have beached themselves on a remote Alaskan coastline in a phenomenon blamed on the melting of arctic ice due to climate change, experts said Wednesday.
Los Angeles. At least 35,000 walruses have beached themselves on a remote Alaskan coastline in a phenomenon blamed on the melting of arctic ice due to climate change, experts said Wednesday.
Initially
there had been only 1,500 of the tusked pinnipeds counted on one beach, but in
recent days that number has exploded.
“Our best
estimate is almost a 24-fold increase,” said Megan Ferguson of the Aerial
Surveys of Arctic Marine Mammals.
The
walruses “are hauling out on land in a spectacle that has become all too common
in six of the last eight years as a consequence of climate-induced warming,”
the US Geological Survey (USGS) said in a statement.
Beaching on
land makes young walruses more susceptible to death by trampling, the agency
said, adding that walruses would normally haul out on ice nearer to rich
feeding grounds.
The USGS
said summer sea ice is retreating far north of the continental shelf waters of
the Chukchi Sea, which is in US and Russian waters, “a condition that did not
occur a decade ago.
“To keep up
with their normal resting periods between feeding bouts to the seafloor,
walruses have simply hauled out onto shore,” it added.
Ferguson
noted that more brown bears than previously estimated were also spotted on the
same stretch of coastline, while gray whales that had swum in the area up to
the 1990s have disappeared.


No comments:
Post a Comment
Note: Only a member of this blog may post a comment.