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| Happy feat: penguins swim fifteen thousand kilometres in six months | |
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| Topic Started: Aug 12 2016, 03:24 PM (64 Views) | |
| Kahu | Aug 12 2016, 03:24 PM Post #1 |
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Happy feat: penguins swim fifteen thousand kilometres in six months Posted Image A rockhopper penguin on Campbell Island. Credit: David Thompson Call it a happy feat. New Zealand scientists have been astounded to find that two species of subantarctuic penguin were able to travel 15,000km - equivalent to the distance between Auckland and Boston - over a stretch of just six months. The insight was revealed by a tagging project observing nearly 100 subantarctic rockhopper and Snares penguins over winter in the Southern Ocean. "If they are constantly moving this averages out at about 100km a day but you also have to add on to that the distances covered vertically as the birds dive to capture food," said the study's leader, National Institute of Water and Atmosphere seabird ecologist Dr David Thompson. While the Snares penguin population on their craggy namesake islands was relatively stable, Campbell Island's rockhoppers had dwindled by at least 21 per cent since 1984, leaving just over 33,000 breeding pairs there. Source Link |
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| blizzard | Aug 13 2016, 04:59 AM Post #2 |
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Gold Star Member
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Very interesting. The study of penguins could take up a lifetime of work. |
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| Delphi51 | Aug 13 2016, 09:42 AM Post #3 |
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Member title
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Wow, birds are the long distance champions, even when swimming. |
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| Not That Esme | Aug 14 2016, 04:08 PM Post #4 |
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Blue Star Member
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“Happy feat.” That’s a cute and clever grab-line. I understand having to work around the “ spoonful of sugar” demographic but wow- “Between 1942 & 1984 the population dropped by about 94%.” -is a tragic mouthful to swallow. "We think winter is pretty important and that there is almost certainly something going on in the ocean causing the population to decline." Sweetly worded little sentence, right there. Future Head-line: Policy Wars Dispatched the Penguins. |
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