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Horseshoe Crab Behavior Impacted By Biomedical Bleeding
2014-02-26 06:56:44

University of New Hampshire DURHAM, N.H. – New research from Plymouth State University and the University of New Hampshire indicates that collecting and bleeding horseshoe crabs for biomedical purposes causes short-term changes in their behavior and physiology that could exacerbate the crabs’ population decline in parts of the east coast. Each year, the U.S. biomedical industry harvests the blue blood from almost half a million living horseshoe crabs for use in pharmaceuticals —...

Death March Recorded In Fossil
2012-09-10 04:27:43

Brett Smith for redOrbit.com - Your Universe Online An unusually complete fossil unearthed in Bavarian Germany was found to depict the tragic last moments of a prehistoric horseshoe crab as it stumbled for its life over 150 million years ago. The crab´s fossilized track, which is over 31 feet in length, displays both the beginning and end of its death march that was the result of the arthropod falling into a stagnant lagoon, according to a recent report published in the journal...

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2011-07-06 08:00:00

Research Bolsters Importance of Horseshoe Crab Spawning for Migrating Shorebirds Speculation that the welfare of a small, at-risk shorebird is directly tied to horseshoe crab populations is in part supported by new scientific research, according to a U.S. Geological Survey- led study published in Ecosphere, a journal of the Ecological Society of America. Population health of the red knot, a shorebird species whose population has plummeted over the last 15 years, has been directly tied to the...

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2010-10-20 08:55:54

Sensor uses frog peptides to test for drug and medical device contamination Princeton engineers have developed a sensor that may revolutionize how drugs and medical devices are tested for contamination, and in the process also help ensure the survival of two species of threatened animals. To be fair, some of the credit goes to an African frog. In the wild, the African clawed frog produces antibacterial peptides -- small chains of amino acids -- on its skin to protect it from infection....

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2010-10-04 11:11:33

Having survived for more than 400 million years, the horseshoe crab is now under threat "“ primarily due to overharvest and habitat destruction. However, climatic changes may also play a role. Researchers from the University of Gothenburg reveal how sensitive horseshoe crab populations are to natural climate change in a study recently published in the scientific journal Molecular Ecology. The horseshoe crab is often regarded as a living fossil, in that it has survived almost unchanged...

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2010-08-30 20:03:21

Decline may affect at-risk shorebirdsA distinct decline in horseshoe crab numbers has occurred that parallels climate change associated with the end of the last Ice Age, according to a study that used genomics to assess historical trends in population sizes.  The new research also indicates that horseshoe crabs numbers may continue to decline in the future because of predicted climate change, said Tim King, a scientist with the U.S. Geological Survey and a lead author on the new study...

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2009-07-28 08:00:00

Two thirds of all different species of freshwater crabs are at risk of becoming extinct, says a new survey.That means that freshwater crabs are some of the most endangered of all groups of animals reviewed thus far. This research is the first worldwide evaluation of the extinction danger of any collection of freshwater invertebrates.Crab species in Southeast Asia are the most vulnerable, mainly due to habitat devastation and pollution.Scientists from the Zoological Society of London and...

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2009-02-18 14:29:35

Declining numbers of a shorebird called the red knot have been linked to bait use of horseshoe crabs. Long-term surveys of red knots showed that the average weight of red knots when they leave Delaware Bay has declined significantly since their primary food source, eggs of horseshoe crabs, has been reduced. The study also revealed that red knot survivorship is related to departure weight, and that the population size of red knots has declined by more than 75 percent. "We concluded that the...

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2008-05-28 08:52:53

Experts are pointing to restrictions in U.S. east coast states on harvesting horseshoe crabs as the cause of the recent surge in the population of endangered migrating shore birds after years of over-fishing.Horseshoe crabs lay the eggs on the shores of the east coast every spring, and the migratory birds rely on the eggs as a source of food.Before the restrictions were put in place, commercial fishermen had harvested millions of crabs, which they used for bait while fishing for conch and...

2008-01-28 11:40:00

Nearly a half a billion years ago, tiny horseshoe crabs crept along the shorelines much like today's larger versions do, new fossil evidence suggests. Two nearly complete fossil specimens discovered in Canada reveal a new genus of horseshoe crab, pushing their origins back at least 100 million years earlier than previously thought. Dubbed Lunataspis aurora, the ancient horseshoe crab is estimated to have been just 1.5 inches (4 centimeters) from head to tail-tip. That's much smaller than...


Latest Xiphosura Reference Libraries

45_2c0380c7e76515063dc4326285e9fbf8
2009-04-01 13:32:49

The Red Knot (Calidris canutus), or Knot in Europe, is a species of bird found in the tundra and Arctic mountains in the far north of Canada, Europe and Russia. North American birds migrate to coastal Europe and South America, while European birds migrate to Africa, Papua New Guinea, Australia and New Zealand. This species has an extensive range and a large population of about 1.1 million individuals. There are six subspecies. The adult is 9 to 10.25 inches in length with an 18.5 to 20.8...

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Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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