such as "Introduction", "Conclusion"..etc
July 1, 2008 — Endangered
migratory whales will be faced with shrinking crucial Antarctic
foraging zones which will contain less food and will be further away, a
new analysis of the impacts of climate change on Southern Ocean whales
A new report* summarises WWF research showing that levels of global
warming predicted over the next 40 years will lead to winter sea-ice
coverage of the Southern Ocean declining by up to 30 per cent in some
“Essentially, what we are seeing is that ice-associated whales such
as the Antarctic minke whale will face dramatic changes to their
habitat over little more than the lifespan of an individual whale,”
said Dr Susan Lieberman, Director of WWF International's Species
Programme and head of the WWF delegation to the IWC meeting.
Migratory whales meanwhile may need to travel 200-500 kilometres
further south to find the “frontal” zones which are their crucial
foraging areas. Migratory whale species which will be affected include
the Blue Whale, earth's largest living creature, and the humpback
whales which are only now coming back from the brink of extinction
after populations were decimated by commercial whaling, mainly during
the first half of the 20th century.
Both species build up the reserves that sustain them throughout the
year in the frontal zones, which host large populations of their
primary food source – krill.
“As frontal zones move southward, they also move closer together,
reducing the overall area of foraging habitat available,” the research
notes. As the krill is dependent on sea ice, less sea ice is also
expected to reduce the abundance of food for whales in the feeding
“The impact on whales is one more imperative for the world to take
decisive action to reduce the risk of catastrophic climate change,” Dr
Lieberman said. “However, the IWC must also take the opportunity of
this southern hemisphere meeting to look at every possible way to
increase the resilience of whale populations to climate change.
“For Antarctica’s whales, the best way to do this would be to reduce
all other threats – such as the unregulated and unjustified so-called
‘scientific whaling’ of these species conducted by Japan.”
WWF is recommending the protection of critical habitats and for also
limiting other non-climate stresses to whale populations such as
fishing, pollution and ocean noise.
*Reference: Ice breaker: Pushing the boundaries for whales
summarises research commissioned by WWF from scientists Dr. Cynthia
Tynan and Dr. Joellen Russell which was presented to the IWC Scientific
Committee in the following paper: Tynan, C. T. and Russell, J.L. 2008.
Assessing the impacts of future 2°C global warming on Southern Ocean
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