Navigation Links
Drivers of marine biodiversity: Tiny, freeloading clams find the key to evolutionary success
Date:8/8/2012

ANN ARBOR, Mich. What mechanisms control the generation and maintenance of biological diversity on the planet?

It's a central question in evolutionary biology. For land-dwelling organisms such as insects and the flowers they pollinate, it's clear that interactions between species are one of the main drivers of the evolutionary change that leads to biological diversity.

But the picture is much murkier for ocean dwellers, mainly because the scope of ecological interactions remains poorly characterized for most marine species. In one of the first efforts to examine how species interactions drive diversification of ocean-dwelling organisms, two University of Michigan researchers and an Australian colleague looked at the lifestyle choices within an exceptionally diverse superfamily of tiny clams, the Galeommatoidea.

They found that the fingernail-size-and-smaller clams' propensity to shack up with much larger, burrowing creatures such as sea urchins, shrimp and worms was a key adaptation that led to the evolutionary success of the superfamily, as measured by its "megadiverse" status among marine bivalves. There are about 500 described species of galeommatoidean clams and many more undescribed species.

By becoming the uninvited house guests of their burrowing hosts, these freeloading, thin-shelled clams acquire a safe haven from predators prowling soft-bottomed sediments, where there's nowhere else to hide. Gaining this deep refuge opened up a vast habitat type soft-bottom marine sediments composed of sand, silt and clay that would otherwise have remained unavailable to these clams.

Galeommatoidean clams are found worldwide in all the major ocean basins, in both rocky and soft-bottom habitats. Some of the clams live a solitary existence, while others form so-called commensal relationships with larger invertebrate hosts. A commensal relationship is one in which one organism benefits and the other is not harmed.


'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. New milestone book documents changes in the south Florida marine ecosystem
2. First seabed sonar to measure marine energy effect on environment and wildlife
3. Paints and coatings containing bactericidal agent nanoparticles combat marine fouling
4. NOAA scholarship awarded to Jan Vicente to study the impact of ocean acidification on marine sponges
5. Stanford marine biologist Barbara Block wins Rolex Award for Enterprise
6. DNA evidence shows that marine reserves help to sustain fisheries
7. Deep sea animals stowaway on submarines and reach new territory
8. ORNL protein analysis investigates marine worm community
9. SeaSketch, the next generation of UCSBs MarineMap program, will aid marine spatial planning
10. NOAA discovers way to detect low-level exposure to seafood toxin in marine animals
11. Marine scientists urge government to reassess oil spill response
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... under the normal circumstances, astrocytes participate in ... environment, and exhibit therapeutic and repairing effects ... studies have found that nerve cells differentiated ... have reduced viability, which produces influences on ... Kailuan General Hospital, Hebei United University, China ...
(Date:7/11/2014)... Using spider toxins to study the proteins that let ... say they have stumbled upon a biological tactic that ... insect plagues in a safe and environmentally responsible way. ... be lethal for one species and harmless for a ... target specific pests without harming beneficial species like bees. ...
(Date:7/10/2014)... 2014  The American Academy of Forensic Sciences ... and Technology (NIST) and the Department of Justice ... forensic science expert members to the Forensic Science ... of the NIST,s Organization of Scientific Area Committees ... appointments made to the new FSSB that has ...
Breaking Biology News(10 mins):Potent spider toxin 'electrocutes' German, not American, cockroaches 2Potent spider toxin 'electrocutes' German, not American, cockroaches 3Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 2Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 3
... have tracked a cell-to-cell signaling pathway that designates the ... mice. The scientists succeeded in activating this signal more ... ear. Patches of sensory structures began growing in spots ... contained tufted cells, called hair cells, which respond to ...
... UK researchers, funded by the Biotechnology and Biological Sciences ... coverage of the wheat genome. The release is a ... significant contribution to efforts to support global food security ... The genome sequences released comprise five read-throughs of a ...
... of breeding stallions meaning the horses are less ... that has caused multi-million-dollar losses in the equine industry, ... progress in solving the problem by using an approach ... subfertility without causing stallions the angst of providing testicular ...
Cached Biology News:Tuning into cell signals that tell where sensory organs will form inside the ear 2Tuning into cell signals that tell where sensory organs will form inside the ear 3UK researchers release draft sequence coverage of wheat genome 2UK researchers release draft sequence coverage of wheat genome 3Texas A&M research produces tools to study stallions' subfertility 2
(Date:7/10/2014)... Unraveling life’s mysteries can intrigue, amaze, ... Family purchased a DNA test to unravel ... with a lifetime of memories, sharing, and closeness. In ... DNA genuinely brought the family closer together. , ... genetic history and prior to taking the genetic ...
(Date:7/10/2014)... OMICS Group’s 5th International conference and exhibition ... at Double Tree by Hilton Beijing, China is all ... & Bioanalytical research methods only to facilitate improved living ... Dr. Srinubabu Gedela, MD of OMICS Group Inc has ... one in bringing a unique and international mix of ...
(Date:7/10/2014)... Senior supply chain management executives from over 50 ... of “Reducing Cost, Lead Time, & Defects in the ... the partnership of the Bio Supply Management Alliance ( ... SCMI) of the University of San Diego in ... Institute of Peace and Justice in San Diego, Devendra ...
(Date:7/10/2014)... 2014 On July 9 Prime ... presented Russia,s first national "Industry" ... Company is developing a unique project called MabNext ... a number of innovative drugs based on monoclonal antibodies ... took place at the International Exhibition "Innoprom 2014" in ...
Breaking Biology Technology:Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2
... Feb. 5 Memory Pharmaceuticals,Corp. (Nasdaq: MEMY ... Chief,Executive Officer, will provide a company update at ... Tuesday, February 12, 2008 at 10:15 a.m. ET ... Interested parties may access the live webcast of ...
... 5 ViroPharma Incorporated,(Nasdaq: VPHM ) today ... operating officer of ViroPharma, will present at the ... on Monday, February 11, 2008. The,conference is being ... ViroPharma,s presentation will be webcast live for investors ...
... Feb. 5 Physicians Reference,Laboratory ("PRL") announced today that ... to date. Under the marketed,name COMPLeTe Care HPV, the ... high risk types of HPV which can lead to,cervical ... common form of female,cancer with an incidence of over ...
Cached Biology Technology:Physicians Reference Laboratory Announces New Diagnostic for Women's Health 2
Normal human serum, single donor...
... Beacon Designer designs oligos for SYBR ... beacon, NASBA and FRET assays. Highly specific ... found by automatically interpreting BLAST search results. ... secondary structures identified by connecting to the ...
Agar, 5 lb. Bacteriological.Moisture: < 10%, ash: < 6.5%. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals ....
Request Info...
Biology Products: