Navigation Links
New giant clam species offers window into human past
Date:8/28/2008

, as a new variety.

Analysis of those apparent differences in morphology confirmed that the species was in fact clearly distinct. To further resolve the relationship of this new variety to the other giant clams, Marc Kochzius at the University of Bremen led the molecular genetic analysis, which confirmed T. costata as a new species.

The new giant clam differs from others in the Red Sea in an early and brief reproductive period each spring, coinciding with the seasonal plankton bloom, they report. Underwater surveys carried out in the Gulf of Aqaba and northern Red Sea revealed that the long-overlooked clam must be considered critically endangered. Only six out of a thousand live specimens the researchers observed belonged to the new species.

Early shellfishing evidence in other areas has led to speculation that the dispersal of modern humans out of Africa into the Red Sea and adjacent regions 110,000 to 90,000 years ago was driven largely by competition for marine resources, the researchers said.

" Our discovery that T. costata was already on a trajectory of decline prior to this period corroborates this hypothesis, by providing the first circumstantial evidence that humans were not only using but also depleting reef resources, making T. costata the likely earliest victim of anthropogenic degradation of coral reefs," they wrote. "Declining marine and terrestrial resources, by human and climatic factors, respectively, may have acted in concert to thwart the precocious but short-lived colonization of the Near East by anatomically modern but technologically primitive humans at the end of the last interglacial."


'/>"/>

Contact: Cathleen Genova
cgenova@cell.com
617-397-2802
Cell Press
Source:Eurekalert

Page: 1 2

Related biology news :

1. Giant panda can survive
2. Insects giant leap reconstructed by founder of sociobiology
3. Scientists discover new species of giant elephant-shrew
4. Scientists discover giant fossil frog from hell
5. Giant panda genome to be sequenced
6. A fossilized giant rhino bone questions the isolation of Anatolia, 25 million years ago
7. Tiny buckyballs squeeze hydrogen like giant Jupiter
8. Giant ocean eddy shadows Sydney
9. National Zoo giant panda pregnancy update
10. GIANT-Coli: A novel method to quicken discovery of gene function
11. Old growth giants limited by water-pulling ability
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... LA JOLLAJoseph Ecker, a Salk professor and Howard ... staff scientist, have been named recipients in the ... of Health (NIH) through the BRAIN (Brain Research ... in neuroscience. The grant, announced September 30, provides ... Salk scientists over three years. , The BRAIN ...
(Date:9/30/2014)... German . ... foods in the world. Because they grow underground, people use ... smell of truffles is not only of interest to gourmets. ... of the Goethe University Frankfurt have discovered that the smell ... are trapped inside truffle fruiting bodies. , White truffles from ...
(Date:9/30/2014)... Having trouble getting pregnanteven with IVF? Here,s some hope: ... of The FASEB Journal , explains ... protein known as PAWP, which induced embryo development in ... of embryo development by the sperm cell during fertilization. ... represent a major paradigm shift in our understanding of ...
Breaking Biology News(10 mins):Salk scientists receive $3 million for BRAIN Initiative grant 2On the trail of the truffle flavor 2Synthetic sperm protein raises the chance for successful in vitro fertilization 2
... vagina can vary greatly between healthy women, according to ... School of Medicine,s Institute for Genome Sciences. Researchers hope ... women, allowing doctors to tailor each woman,s treatment and ... The study, published online the week of May 31, ...
... of phytonutrients thought to promote health could add a new ... to fork can be a perilous one fraught with sundry ... in the ground or during storage. In Aberdeen, Idaho, ... are taking on the late-blight fungus, Phytophthora infestans , ...
... rare practice by red squirrels that seems to have human-like ... survival tactic. U of A researcher Jamieson Gorrell ... had adopted a newborn squirrel abandoned by its biological mother. ... a baby red squirrel had been taken from its mother-absent ...
Cached Biology News:UM School of Medicine study finds vaginal microbes vary among healthy women 2UM School of Medicine study finds vaginal microbes vary among healthy women 3ARS scientists seek blight-resistant spuds 2Red squirrels: Altruists or self-serving survivalists? 2
(Date:9/30/2014)... 2014 SoundConnect, an ... is dedicated to supporting business communication solutions, including ... Power, a carrier services specialist has ... stays connected and productive at all times. This ... of businesses to cloud communications services. On ...
(Date:9/30/2014)... Back in the 1970’s, many companies calculated their office ... included space for circulation and file storage. “It was ... Nidea Corporate Real Estate / ITRA Global , a ... however, 250 square feet per employee became the norm. ... 175 to 225 square feet, and over the next few ...
(Date:9/29/2014)... VIRGINIA BEACH, Va. , Sept. 29, 2014 ... scientists from the fields of cartilage repair, regeneration, ... as attendees from around the world gathered to ... 2014 LifeNet Health Institute of Regenerative Medicine symposium, ... Future Direction . Topics included Orthopedic Biosurgery, Minced ...
(Date:9/29/2014)... DUBLIN , Sept. 29, 2014 ... "Process Liquid Analyzer, Gas Analyzer, and Gas Chromatograph ... Application, & Region - Global Trends & Forecast to ... A process analyzer is a process analytical ... in real-time. It has redefined the way by which ...
Breaking Biology Technology:SoundConnect Expands Carrier Services Division 2ITRA Global Reports on How Companies Are Squeezing More Employees into Less Office Space 2ITRA Global Reports on How Companies Are Squeezing More Employees into Less Office Space 3World Renowned Experts Discuss Future Of Cartilage Regeneration 2World Renowned Experts Discuss Future Of Cartilage Regeneration 3Global Process Liquid Analyzer, Gas Analyzer, and Gas Chromatograph (PH/ORP, Chlorine, Oxygen, Carbon dioxide) Market - Trends & Forecast to 2020 2Global Process Liquid Analyzer, Gas Analyzer, and Gas Chromatograph (PH/ORP, Chlorine, Oxygen, Carbon dioxide) Market - Trends & Forecast to 2020 3Global Process Liquid Analyzer, Gas Analyzer, and Gas Chromatograph (PH/ORP, Chlorine, Oxygen, Carbon dioxide) Market - Trends & Forecast to 2020 4
... pharmaceutical and biotechnology ... specialist expertise, BOSTON, Jan. 3 Observant LLC ... passion for research excellence,and a commitment to client service. ... the firm as Vice President. Dr. Hartman,s,research has focused ...
... in orbit and the National Aeronautics and Space Administrations ... observe the Earths environment to help predict and prevent ... of remote sensing technology aids specialists in predicting the ... infectious diseases today such as Ebola, West Nile virus ...
... WEST LAFAYETTE, Ind. - Researchers have developed a ... "biosensors," a tool that could help industry perfect ... to environmental monitoring. , The experimental devices represent ... capture and detect specific "target molecules," which will ...
Cached Biology Technology:Observant LLC Expands Senior Management Team 2NASA technology helps predict and prevent future pandemic outbreaks 2Model is first to compare performance of 'biosensors' 2Model is first to compare performance of 'biosensors' 3
CHIMAERIC HUMAN IgA2 ANTI NP...
ANTI NO-TRYPTOPHAN CONJUGATE...
... The Captivate magnetic separator ... be used in conjunction with ... C-21474, C-21476) or other magnetic ... most 96-well microplates. Cell Biology ...
Protein Phosphorylation...
Biology Products: