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  • June 21, 2011
  • 01:09 PM
  • 1,320 views

The oceans rise, even as they decline... so long, fish!

by Madhu in Reconciliation Ecology

Two interesting, alarming reports this week about what's happening (no small thanks to us) to the dominant habitat on this watery planet. First, that habitat is becoming even more dominant: a paper...

... Read more »

Kemp, A., Horton, B., Donnelly, J., Mann, M., Vermeer, M., & Rahmstorf, S. (2011) Climate related sea-level variations over the past two millennia. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1015619108  

  • June 21, 2011
  • 12:28 PM
  • 896 views

The oceans rise, even as they decline... so long, fish!

by Madhusudan Katti in a leafwarbler's gleanings




Two interesting, alarming reports this week about what's happening (no small thanks to us) to the dominant habitat on this watery planet. First, that habitat is becoming even more dominant: a paper in PNAS meticulously reconstructs global sea-levels over the past two millenia to show that the oceans have been steadily rising, in concert with climatic changes, and that their rise has accelerated in recent years. This figure ought to worry you:




via realclimate.org
Meanwhile, though........ Read more »

Kemp, A., Horton, B., Donnelly, J., Mann, M., Vermeer, M., & Rahmstorf, S. (2011) Climate related sea-level variations over the past two millennia. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1015619108  

  • June 21, 2011
  • 12:28 PM
  • 934 views

The oceans rise, even as they decline... so long, fish!

by Madhusudan Katti in a leafwarbler's gleanings




Two interesting, alarming reports this week about what's happening (no small thanks to us) to the dominant habitat on this watery planet. First, that habitat is becoming even more dominant: a paper in PNAS meticulously reconstructs global sea-levels over the past two millenia to show that the oceans have been steadily rising, in concert with climatic changes, and that their rise has accelerated in recent years. This figure ought to worry you:




via realclimate.org
Meanwhile, though........ Read more »

Kemp, A., Horton, B., Donnelly, J., Mann, M., Vermeer, M., & Rahmstorf, S. (2011) Climate related sea-level variations over the past two millennia. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1015619108  

  • June 21, 2011
  • 12:05 PM
  • 1,136 views

Carbon dioxide could fight global warming

by Charles Harvey in Charles Harvey - Science Communicator

Carbon sequestration and geothermal energy could be combined together in a system that could produce electricity with a negative carbon footprint.... Read more »

  • June 20, 2011
  • 06:52 PM
  • 1,869 views

The Frustrating Legacy of “Plasterosaurus”

by Laelaps in Laelaps

For one of the most impressive seagoing predators of all time, Kronosaurus queenslandicus did not receive a very auspicious introduction in the scientific literature. Today the creature’s name immediately conjures up the image of a massive marine reptile with a cavernous maw arrayed with big, conical teeth, but in 1924, when Kronosaurus received its formal [...]... Read more »

  • June 17, 2011
  • 10:56 AM
  • 1,339 views

Peloroplites: That’s One Big Ankylosaur

by Brian Switek in Dinosaur Tracking

The "monstrous heavy one" was stout, armored and may have supported huge spikes on its neck and shoulders... Read more »

  • June 14, 2011
  • 02:56 PM
  • 2,076 views

Linking Erosional and Depositional Landscapes

by Brian Romans in Clastic Detritus

The surface of Earth is being reshaped constantly. Mountainous uplands are broken down by water and wind producing sediment that is moved by rivers to lowlands. Some of this sediment is deposited along the way, some is delivered to the coast and continental shelf, and some makes its way to the ultimate sink, the [...]... Read more »

Covault, J.A., Romans, B.W., Graham, S.A., Fildani, A., & Hilley, G.E. (2011) Terrestrial source to deep-sea sink sediment budgets at high and low sea levels: Insights from tectonically active southern California. Geology, 619-622. info:/10.1130/G31801.1

  • June 14, 2011
  • 08:56 AM
  • 2,125 views

The Circle of Life (and how Jellyfish screw it up)

by Holly Bik in Deep Sea News

Mufasa was right.  We’re all intertwined.  Whether we humans like to admit it or not, every action by a living organism on Earth has repercussions.  (And yes, you can lump in viruses and prions because I’m not getting into a philosophical debate about what constitutes ‘living’). Run, Harry! You don't want to catch Irukandji . . . → Read More: The Circle of Life (and how Jellyfish screw it up)... Read more »

Condon, R., Steinberg, D., del Giorgio, P., Bouvier, T., Bronk, D., Graham, W., & Ducklow, H. (2011) Jellyfish blooms result in a major microbial respiratory sink of carbon in marine systems. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1015782108  

Parsons, T.R., & Lalli, C.M. (2002) Jellyfish population explosions: revisiting a hypothesis of possible causes. La Mer, 111-121. info:/

  • June 14, 2011
  • 05:28 AM
  • 1,561 views

Highlights from ISIE 2011

by James Keirstead in James Keirstead.ca

Last week was the biennial conference of the International Society of Industrial Ecology, held at the lovely University of California Berkeley. At four days, plus an extra workshop for the Sustainable Urban Systems section, it was a long event but the week went quickly with a number of excellent talks and interesting attendees. Here are some of my highlights.... Read more »

  • June 13, 2011
  • 11:33 PM
  • 2,801 views

Computers and Electrifying Bacteria

by Paige Brown in From The Lab Bench

Computer-based simulations that use an organism's hereditary information are revealing previously unknown but essential life functions of special bacteria that can be modified to help clean our water and produce electricity for our alternative energy needs... Read more »

  • June 12, 2011
  • 03:39 PM
  • 1,413 views

New data about Amazonian Dark Earth (ADE).

by Umberto in Up and Down in Moxos

The Journal of Archaeological Science has just published a new study on ADE. The study, of Birk et al. is entitled: “Faeces deposition on Amazonian Anthrosols as assessed from 5b-stanols”. I have just read it and this is my very first impression:The new data are extremely interesting. The authors look at the presence of coprostanol (a marker for faeces) in Amazonian Dark Earth (ADE). They have found a clear change in the index used to asses different sources of stanols, when comparing sample........ Read more »

Jago Jonathan Birka, Wenceslau Geraldes Teixeirab, Eduardo Góes Nevesc, & Bruno Glaser. (2011) Faeces deposition on Amazonian Anthrosols as assessed from 5β-stanols. Journal of Archaeological Science, 38(6), 1209-1220. info:/doi.org/10.1016/j.jas.2010.12.015

  • June 10, 2011
  • 12:36 AM
  • 824 views

McInnis Canyons Mygatt-Moore Quarry Gives Up Fossil Clues

by noreply@blogger.com (ReBecca Hunt-Foster) in Dinochick Blogs

John and I have been continuing our research out at the Mygatt-Moore Quarry in western Colorado, and recently had a paper on one of our findings published in the Journal of Vertebrate Paleontology in May.Foster, John R. and Hunt-Foster, Rebecca K.(2011) 'New occurrences of dinosaur skin of two types (Sauropoda? and Dinosauria indet.) from the Late Jurassic of North America (Mygatt-Moore Quarry, Morrison Formation)', Journal of Vertebrate Paleontology, 31: 3, 717 — 721 DOI: 10.1080/02724634.2........ Read more »

Foster, John R. and Hunt-Foster, Rebecca K. (2011) New occurrences of dinosaur skin of two types (Sauropoda? and Dinosauria indet.) from the Late Jurassic of North America (Mygatt-Moore Quarry, Morrison Formation). Journal of Vertebrate Paleontology, 31(3), 717-721. info:/10.1080/02724634.2011.55741

  • June 9, 2011
  • 03:21 PM
  • 2,484 views

From the Archives: Reflections on the Gulf Oil Spill - Conversations With My Grandpa

by Christie Wilcox in Observations of a Nerd

If you didn't already know because, by chance, you missed my tweets, posts, and facebook updates, there is a science blogging contest going on RIGHT NOW. The 3 Quarks Daily Science Blogging Prize is currently narrowing down the top 20 posts from 87 nominees. To get through the gauntlet, a post has to get enough votes. Rather than remind you again to vote for Observations of a Nerd, I figured I'd show you why you should. Over the next 24 hours, I'll be reposting the three posts in the competition........ Read more »

Jonathan L. Ramseur. (2010) Oil Spills in U.S. Coastal Waters: Background, Governance, and Issues for Congress. Congressional Research Service , 7-5700 (RL33705). info:/

Paine, R., Ruesink, J., Sun, A., Soulanille, E., Wonham, M., Harley, C., Brumbaugh, D., & Secord, D. (1996) TROUBLE ON OILED WATERS: Lessons from the Exxon Valdez Oil Spill. Annual Review of Ecology and Systematics, 27(1), 197-235. DOI: 10.1146/annurev.ecolsys.27.1.197  

  • June 9, 2011
  • 10:03 AM
  • 1,934 views

Triceratops: An A Dinosaur

by Brian Switek in Dinosaur Tracking

Paleontologists have recently learned how these three-horned dinosaurs fought, grew up and socialized... Read more »

  • June 9, 2011
  • 07:30 AM
  • 1,379 views

The Indian Ocean’s cup runeth over

by Alistair Dove in Deep Sea News

I’ve been in Brazil for the past week for some research coordination meetings.  This has involved a number of different folks in several forums, but the whole process was pervaded by a patent anxiety on the part of many people I spoke to with regards to climate change.  This is not new of . . . → Read More: The Indian Ocean’s cup runeth over... Read more »

  • June 9, 2011
  • 07:30 AM
  • 1,221 views

The Indian Ocean’s cup runeth over

by Alistair Dove in Deep Type Flow

I’ve been in Brazil for the past week for some research coordination meetings.  This has involved a number of different folks in several forums, but the whole process was pervaded by a patent anxiety on the part of many people I spoke to with regards to climate change.  This is not new of course, . . . → Read More: The Indian Ocean’s cup runeth over... Read more »

  • June 9, 2011
  • 07:30 AM
  • 1,367 views

The Indian Ocean's cup runeth over

by Alistair Dove in Deep Sea News

The Agulhas leakage is an ocean current that spills warm water from the Indian Ocean into the Atlantic, where it has a profound effect on global climate.... Read more »

  • June 9, 2011
  • 12:04 AM
  • 1,365 views

Revenge of the Meat-Eating Megatherium

by Laelaps in Laelaps

Unknown Island has to be one of the crummiest dinosaur movies ever made. Though it came out about 15 years after King Kong debuted, the plot is broadly the same and executed with less skill – young filmmaker hires a crew to go to an island swarming with prehistoric life; mayhem ensues. The acting’s bad, [...]... Read more »

  • June 8, 2011
  • 02:45 PM
  • 627 views

Earliest human migrations

by zacharoo in Lawn Chair Anthropology

One of my favorite paleoanthropological sites is Dmanisi, in the Republic of Georgia. It is the oldest securely dated hominid site outside Africa (just under 1.85 million years ago), and the hominids found there display a neat mix of primitive Homo habilis and derived H. erectus features. I consider myself lucky to have had the opportunity to excavate at Dmanisi last year, and to return to Georgia (lamazi Sakartvelo! [I hope I translated that correctly]) for more fieldwork next month.
Recently, ........ Read more »

Ferring R, Oms O, Agustí J, Berna F, Nioradze M, Shelia T, Tappen M, Vekua A, Zhvania D, & Lordkipanidze D. (2011) Earliest human occupations at Dmanisi (Georgian Caucasus) dated to 1.85-1.78 Ma. Proceedings of the National Academy of Sciences of the United States of America. PMID: 21646521  

  • June 6, 2011
  • 09:16 PM
  • 2,125 views

Plesiosaurs, the Beautiful Bottom-Feeders

by Laelaps in Laelaps


In 1821, British geologists Henry De la Beche and William Conybeare presented a bizarre, previously-unknown fossil creature to their colleagues in the Geological Society of London. They called their monster Plesiosaurus. A paddle-legged marine reptile akin to the recently-discovered, shark-shaped animals known as ichthyosaurs, the new animal was cast as “a link between the Ichthyosaurus [...]... Read more »

McHenry CR, Cook AG, & Wroe S. (2005) Bottom-feeding plesiosaurs. Science (New York, N.Y.), 310(5745), 75. PMID: 16210529  

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