Tag: "penguin" at biology news
Beset By Human Competition, Penguins Must Take Marathon Food Trips To Avoid Starvation, A Researcher Finds
... through the jungle to get a Bud Ice. Indeed, the penguin
seems to be on every advertiser's fantasy list the...est research shows that birds from the Punta Tombo penguin
reserve in southern Argentina sometimes travel more than 300 miles from their nesting sites. Boersma...
Increasing Frequency Of El Nino Takes Toll On Northern Hemisphere's Only
...f the long-term effects of El Nino on theGalapagos penguin
population was published in the May issue of the j...a Nina events, could continue reducingthe islands' penguin
population. "I'm certainly not at all convinced that the Galapagos penguin
is going to goextinct be...
Tourists And Scientists Could Be Bringing Deadly Diseases To Antarctica's
...commonly found in chickens in the blood of Emperor penguin
chicks andadult Ad'lie penguins near the Australian base of Mawson (Nature, vol 387, p245). This infectious bursal disease virus (IBDV) suppresses birds' immunesystems, making them susceptible to other diseases. The Hobart meeting reviewed mo...
Cold water off Brazil might be causing Argentine penguin nest failures
...ar-distant food supply could be a major culprit in penguin
nest failures now occurring in Argentina. It is no...ing the adult penguins so long to return. A female penguin
stays on the nest and fasts while the male goes for food. Typically the male is gone about two weeks...
Waddling is a good way to make up for short legs - at least for penguins, say UC Berkeley researchers
... "Penguin Encounter" exhibit, a large refrigerated penguin
city housing some half dozen penguin
species. With the help of Sea World staff, the UC Berkeley scientists and their student team nudged ...
Antarctic remediation underway
...ape Hallett and has recommended steps to safeguard penguin
chicks at a nearby rookery from melt pools contami...s underway, the team discovered a number of Adelie penguin
chicks whose feathers appeared to be contaminated with oil. The source of the contamination appears ...
Antarctic mud reveals ancient evidence of global climate change
...apidly melting glaciers to unexplained declines in penguin
populations. Records show that average winter temperatures are 10 degrees higher in parts of Antarctica today than they were 50 years ago. If that warming trend continues, say many climate experts, the vast Antarctic ice sheets could melt, causing c...
Giant icebergs, unprecedented ice conditions threaten Antarctic penguin colonies
...olated one of the continent's most populous Adelie penguin
colonies, making it difficult for the birds to ret... men of Scott's party to collect the first Emperor penguin
eggs from Cape Crozier. Early in the 20th century, the eggs were scientific curiosities because Emp...
Icebergs devastating impact on Antarctic marine life revealed by satellite data
...a large gull that feeds on chicks and the eggs. So penguin
breeding success was much lower last year. Curren...wedged against Ross Island site of several large penguin
rookeries. Now the penguins have another obstacle they have to get around, Arrigo said. Not only do ...
Falklands penguins forage far enough from home to get into trouble
...ds, have monitored behavior and movements of three penguin
species Gentoos, Rockhoppers and Magellanics. Th..., and there is evidence that some of the Falklands penguin
species already are suffering declining numbers, Boersma said. "The penguins don't pay attention to ...
A message from nature to muskrats: 'Dont chill out'
..., or lower than resting metabolic rates in several penguin
species (gentoo, king, emperor), as well as southern elephant seals. Since oxygen affinity of mammalian hemoglobin is typically increased in cold, a reduced sensitivity to temperature may serve to maintain the unloading of oxygen to cooled tissues d...
Antarctic penguins thrive in ocean 'oases'
...s, to a great extent, the increase and decrease in penguin
population. "It's the first time anyone has ever l...alif. "No one had any idea how tightly coupled the penguin
populations would be to the productivity of these polynyas. Any changes in production within these p...
Abandoned penguin colonies may help refine Antarctic climate studies
... The analysis also indicates that the large Adelie penguin
colonies that now exist on Ross Island in McMurdo ... ice that could eventually cause an abandonment of penguin
colonies, scientists in the future could interpret the abandonment as evidence of a cooling trend. ...
Penguin bones from 'land of fire' rewrite bird's evolution
...ilized bones are sufficiently different from known penguin
anatomy to rewrite the story of penguin
evolution. Tierra del Fuego, the southernmost portion of the South American continent, means "land o...
Patagonia's coastal wildlife receive a protective boost by Argentine government
...outhern sea lions, and some of the world's largest penguin
colonies recently received a protective boost, whe...long Patagonia's rugged coastline. Two species of penguin
breed here, including a concentration of Magellanic penguins at Punta Tombo that numbers in the hund...
Penguins ingest mollusk shells to obtain calcium for thicker eggshells
... virtually impossible for a prospective Magellanic penguin
mother to find or build a soft spot to lay her egg...rd surfaces and survive being kicked around during penguin
fights. But it takes a lot of extra calcium to produce thicker shells, and a penguin
can't just run ...