ersist, may cause the penguins to abandon those colonies completely.
Scientists are debating whether the existence of the huge icebergs is due to a general warming of the climate in Antarctica or simply part of some other natural process in which pieces of ice break away--or "calve"--from the Ross and other ice shelves in the same way that human fingernails break off when they reach a certain length.
But Emslie noted, paradoxically, even if the calving is due to warming, because the icebergs are causing a concentration of sea ice that could eventually cause an abandonment of penguin colonies, scientists in the future could interpret the abandonment as evidence of a cooling trend.
"I think it's a good lesson for us," he said. "Although you might think this ecosystem is relatively simple, it's apparent that it's a lot more complex than it first appears."
Page: 1 2 3 Related biology news :1
Contact: Peter West
National Science Foundation
. Models Assess Remedial Actions On Abandoned Mine Lands In Colorado2
. Antarctic penguins thrive in ocean oases3
. Falklands penguins forage far enough from home to get into trouble4
. Giant icebergs, unprecedented ice conditions threaten Antarctic penguin colonies5
. Waddling is a good way to make up for short legs - at least for penguins, say UC Berkeley researchers6
. Cold water off Brazil might be causing Argentine penguin nest failures7
. Integrative approach to studying penguins, cockroaches and little hairy noses makes comparative biomechanics group at UC Berkeley the nations best8
. Scientists question reports of massive ant supercolonies in California and Europe9
. UCR entomologists report bee-dancing brings more food to honeybee colonies10
. New model of Alzheimers enzyme may help refine future treatments11
. DuPont and NREL to develop worlds first integrated bio-refinery