Showing posts with label sea turtle. Show all posts
Showing posts with label sea turtle. Show all posts
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linda
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Flying gurnard. Credit: cralize via Wikimedia Commons. / Spotted eagle ray. Credit: john norton via Wikimedia Commons. / Green sea turtle. Credit: Mila Zinkova via Wikimedia Commons. / Weedy sea dragon. Credit: Richard Ling (Rling) via Wikimedia Commons. / Lionfish. Credit: Jens Petersen via Wikimedia Commons. / Cuttlefish. Via. / Icefish. Credit: Uwe Kils via Wikimedia Commons. / Humpback whales. Via. / Hammerhead shark. Via. / Manatee. Via. / Sea lions. Credit: NOAA. / Manta ray. Via. / Flying fish. Via.
Posted by
linda
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Kleptoparasitism:
klepto: Greek κλέπτης ("thief") and κλέπτω ("steal") + parasitos: παράσιτος ("person who eats at the table of another")
Meaning: The parasitic theft of captured prey, nest material, etc., from animals of the same or another species; such as the theft by a gull* of a featherwight GoPro camera from a tourist on the French Riviera.
*Possibly a European herring gull (Larus argentatus).
(European herring gull. Credit: Kulac via Wikimedia Commons.)
The gull video reminded me of another wild travel video shot by a sea turtle on a "stolen" underwater camera.
The sea turtle video is more likely a case of entanglement than of kleptoparasitism.
Posted by
linda
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This map gives a global snapshot of 1,167 nesting sites of the endangered green turtle (Chelonia mydas). The species boasts the largest nesting range of all sea turtles.
The map is also the grand-prize winner of this year's International Conservation Mapping Competition. Credit and kudos to Andrew DiMatteo, cartographer and database manager of the State of the World's Sea Turtles (SWOT) Project, and Associate in Research at Duke University. Kudos too to the hundreds of volunteers around the world who over a period of seven years shared their discoveries of nesting sites.
The map was first published in SWOT Report: The State of the World's Sea Turtles, Vol. 6. You can see completed SWOT maps for all sea turtle species here. And you can wend through other winners and notable contenders from the International Conservation Mapping Competition here.
(Green turtle hatchlings. From ScubaZoo.)
Posted by
linda
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Here's some of the most beautiful footage of one of my favorite worlds—the bottomless blue waters far offshore known as the pelagic zone. Life here shines.
Whether you've had the good fortune to visit this realm or not, you're in for a treat with this short film by Rafa Herrero Massieu, shot in the waters around the Canary Islands.
A few highlights to look out for, with timecodes:
- Rare underwater footage of a beaked whale (not sure which species): 01:10
- Common dolphins showing their gorgeous colors: 01:16
- An Atlantic spotted dolphin emitting signature whistles: 01:26
- Bryde's whale (I think, or else a Sei whale): 03:23
Because big life is relatively sparse in the pelagic zone, encounters between individuals tend to generate a lot of curiosity.
You can see how all these species investigate the novelty of a person in their world—particularly the pilot whales at 03:00 and the triggerfish at 03:21.
For more of Rafa Herrero Massieu's films, visit his blog: NacidasDelMar (Born of the Sea), or his Vimeo page.
(Strata of the pelagic zone. Measurements in meters. From here.)
