Before and After: video

Showing posts with label video. Show all posts

Monday, August 20, 2012

ONE BREATH

Freediving world champion Guillaume Néry gets one with the water.
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Fourteen extraordinary minutes detailing a hundred years in the Arctic of climate change, war, science, politics, energy, unrealistic optimism, business, and beauty.
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North from Studiocanoe on Vimeo.

WAVE BUOY SCULPTURE

A sculpture responding to wave height data recorded by NOAA's buoy 46246 in the North Pacific.
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tele-present water from david bowen on Vimeo.

THE MOTION OF A UNIVERSE

After two weeks hiking in the high Sierra, the speed of this video—set to the words of Nikola Tesla—appealed to me.
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Passing Through from Olafur Haraldsson on Vimeo.

TRANSIT OF VENUS EXPLAINED

ENDING OVERFISHING

The problem, a solution, animated.
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THIS IS BETTER THAN MONDAY MORNING

Dream from 'The Glide,' Images by Jon Frank. Music by Richard Tognetti. from Jon Frank on Vimeo.

Sequence from 'The Glide,' a concert performance featuring video projections behind live orchestra. Premiered at Festival Maribor in 2009 and also performed by the Australian Chamber Orchestra in a series of three concerts in Melbourne and Sydney in 2011. www.jonfrank.org

SUBLIME SOUNDS: THE YELLOW-BILLED LOON

Haunting calls and video from the Russian Arctic.
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Video by Gerrit Vyn at the Cornell Lab of Ornithology.

CELESTIAL LIGHTS

F**K PLANET EARTH

ICE VIKINGS

Crazy dudes and dudesses ice-climb icebergs off Newfoundland.
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Ice Vikings from Don Wargowsky on Vimeo.

THE OLD MAN AND THE SEA

the old man and the sea from Marcel Schindler on Vimeo.

MARINE SANCTUARY REALLY HELPS RARE DOLPHINS

Hector's dolphin. Credit: James Shook via Wikimedia Commons.

A new study provides the first empirical evidence that a marine protected area (MPA) has robustly improved the survival of a marine mammal. In this case, one of the world's most endangered marine mammals, the Hector's dolphin (Cephalorhynchus hectori) of New Zealand.

The IUCN Red List describes the problems facing this diminutive cetacean:

This species is considered to be Endangered due to an ongoing and projected decline of greater than 50% over 3 generations (approx. 39 years)... Hector’s dolphin has the most limited range of any marine cetacean other than the vaquita (Phocoena sinus)... The main cause of population decline is ongoing bycatch in [gillnet and trawl] fisheries.

Concerned for the future of this rare species (population: 7,270 individuals), New Zealand in 1988 established the Banks Peninsula Marine Mammal Sanctuary in 1,170-square-kilometers (451-square-miles) of waters off the South Island.

Banks Peninsula, South Island, New Zealand. Credit: NASA Astronaut Photo ISS013-E-67242.

The research, ongoing since 1986, involved identifying 462 individual Hector's dolphins through photographs and then analyzing the photographic re-sightings using a Bayesian mark-recapture technique. The team applied a population model to assess the impact of the MPA on the dolphins.

Their results show that since the designation of the sanctuary, the Hector's dolphins' survival rate has increased by 5.4 percent:

From a decline of ~6 percent per year
Now slowed to a rate of decline of ~1 percent per year

As good as that sounds, the researchers were surprised survival rates hadn't increased further, since they expected the establishment of the MPA to solve the problem entirely.

Hector's dolphin. Credit: David Searle via Flickr.

Instead they discovered the dolphins don't spend the whole year in the sanctuary. Co-author Liz Slooten tells me:

Their distribution with respect to depth and distance offshore changes. In winter they are almost evenly distributed with respect to depth and distance offshore. In summer they are strongly concentrated close to shore. This means that in summer about 80% of the population is inside the sanctuary and protected. In winter this drops to only about 40%. Too many dolphins are still being caught in fishing nets to allow the population to stabilise, let alone recover from the massive decline they've suffered over the last three decades.

"The MPA hasn't quite yet 'saved' the dolphins," says Slooten, "but it's been a major step in the right direction. The take home message is that size matters. Marine Protected Areas work, but they have to be large enough in order to be effective."

The paper in early view at the Journal of Applied Ecology:

Andrew M Gormley, Elisabeth Slooten, Steve Dawson, Richard J Barker, Will Rayment, Sam du Fresne and Stefan Brager (2012). First evidence that Marine Protected Areas can work for marine mammals. Jour. App. Ecol. DOI: 10.1111/j.1365-2664.2012.02121.x

BIODIVERSITY UNIVERSE

BIOdiversity from tresvampiros on Vimeo.

Great animated short explaining biodiversity made for the Humboldt Institute in Bogotá, Colombia (my birthplace).

SPRING BLOOM

Spring bloom from Rafa Herrero Massieu on Vimeo.

HERMIT CRAB HOMES

Great footage of hermit crabs checking out potential new digs. Including an unlikely looking glass house made from a broken bottle.

Filmmakers Anna & Ned DeLoach wrote about filming hermits at their fun site, The Blennywatchers Blog:

The straight bottle lacked the spiral of a shell so the crab had trouble gaining traction but it gave us an excellent view of the parts of the hermit crab that we would never see otherwise. Click here to read the article Ned and I wrote about the encounter in Scuba Diving Magazine.

Very large hermit crab making queen triton shell home. Hawaii, Papahanaumokuakea Marine National Monument. Credit: NOAA Photo Library via Flickr.

Hermit crabs have been using gastropod shells since at least the late Cretaceous, 99–65 million years ago.

Before that they used ammonite shells—as you can see in the fossils below.

Fossil hermit crabs in ammonite shells. Via RMCG.

Sometimes other creatures make homes on hermit crab homes.

In the photo below you can see an anemone living atop a snail shell that a hermit crab has commandeered. The crabs place anemones on their shells as stinging defenders.

Credit: NOAA Okeanos Explorer Program via Flickr.

And some anemones are home to the symbiotic algae known as zooxanthellae.

As I wrote in my new OnEarth article, The End of a Myth:

Honing our technological eyesight, we begin to observe what was once too small to be seen, in an exercise that mirrors infinity.

Credit: Ian Yarret via The Robert Savage Image Award at Swarthmore.

The red cells are symbiotic zooxanthellae inside the tissues of the sea anemone Aiptasia pallida.

H/T @deepdeanews and @echinoblog for the video link.