Navigation Links
Mussels evolve quickly to defend against invasive crabs

Scientists at the University of New Hampshire (UNH) have found that invasive crab species may precipitate evolutionary change in blue mussels in as little as 15 years. The study, by UNH graduate student Aaren Freeman with associate professor of zoology James Byers and published in the Aug. 11 issue of the journal Science, indicates that such a response can evolve in an evolutionary nanosecond compared to the thousands of years previously assumed. The paper is called "Divergent induced responses to an invasive predator in marine mussel populations."

"It's the blending of ecological and evolutionary time," says Freeman, a Ph.D. candidate in the department of zoology. "It's an important development in the arms race between these crabs and these mollusks." Crabs prey on blue mussels by crushing their shells.

Freeman looked at the inducible defense ?shell thickening ?of blue mussels (Mytlius edulis) in the presence of two invasive crab species in New England, the Asian shore crab Hemigrapsus sanguineus and the green crab Carcinus maenas. While Carcinus was introduced to New England from Europe between 150 and 200 years ago, Hemigrapsus is a relative newcomer, arriving from Asia to New Jersey in 1988. While previous research had established that mussels recognize Carcinus, it had not be determined if they recognize Hemigrapsus. And, crucial to the design of Freeman's study, Hemigrapsus is not present north of mid-coast Maine.

"This set up a chance to look at populations that had been exposed to the predators for varying lengths of time," says Freeman. "We wanted to know, how is it that these mollusks can recognize a crab that is historically not present in North America?"

Freeman exposed mussels native to the northern ?above mid-coast Maine ?and southern New England to both Carcinus and the Hemigrapsus. Both populations thickened their shells when exposed to waterborne cues of Carcinus, but only the southern mussels ?Freeman describes t
'"/>

Source:University of New Hampshire


Page: 1 2 3

Related biology news :

1. Scientists discover how fish evolved to float at different sea depths
2. Immune system has evolved to prevent autoimmune disease
3. MBL researchers probe how an ancient microbe thrives and evolves without sex
4. Fish evolve a longer lifespan by evolving a longer reproductive period, researchers find
5. Fitting in: Newly evolved genes adopt a variety of strategies to remain in the gene pool
6. Cancer support cells may evolve, fuel tumor growth, study shows
7. Sociality of sweat bees evolved simultaneously during climate change
8. Scientists force viruses to evolve as better delivery vehicles for gene therapy
9. How did cactuses evolve?
10. New clues to how sex evolves
11. How did bilaterally symmetric flowers evolve from radially symmetric ones?
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Mussels evolve quickly defend against invasive crabs

(Date:9/16/2014)... trillion in cumulative public and private spending, and ... percent reduction of urban passenger transport emissionscould be ... transportation, walking and cycling in cities, according to ... California, Davis, and the Institute for Transportation and ... 1.4 million early deaths could be avoided annually ...
(Date:9/16/2014)... discovered the "molecular brakes" that time the generation of ... These "hair cells" translate sound waves into electrical signals ... as sounds. If the arrangement of the cells is ... the research will be published in The Journal ... Hey1 and Hey2 act as brakes to prevent hair ...
(Date:9/16/2014)... began on September 13, 2014. The fire is human-caused ... over 2,300 acres in size and is mostly being ... was calm Monday night due to higher humidity. ... and beginning to construct a fireline on the West and ... working on the fire: , 7 20-person Crews, 4 Hot ...
Breaking Biology News(10 mins):Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 2Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 3Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 4Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 5Hey1 and Hey2 ensure inner ear 'hair cells' are made at the right time, in the right place 2
... a face in the clouds or in the moon, you may ... turns out the answer to this seemingly minor detail is that ... visual perception and functional magnetic resonance imaging (fMRI), Lars Strother and ... & Mind recently measured activity in two regions of the brain ...
... of tuberculosis (TB) responsible for devastating some isolated Aboriginal ... by French Canadian fur traders between 1710 and 1870. ... the fur trade routes and modern day patterns of ... Infectious Diseases, is the member of this research team ...
... University] Policymakers are very familiar with land-use planning. ... of America,s coastal waters and oceans? That question has ... Council last summer and charged it with developing an ... and the Great Lakes. A team of natural ...
Cached Biology News:Tuberculosis strain in indigenous communities linked to Canadian fur trade 2How do you manage US oceans? Look at local successes 2How do you manage US oceans? Look at local successes 3
(Date:9/15/2014)... Things can go downhill fast when a patient has ... multiply in a patient,s blood -- often too fast ... the human spleen and developed by a team at ... transform the way doctors treat sepsis. , "Even ... in intensive care units at least 30 percent of ...
(Date:9/15/2014)... of researchers led by Northeastern University has developed ... junctions and a variety of nanocarbon structures in ... easily scalable, which will allow the researchers to ... use in applications ranging from electronic devices to ... to sports equipment. , Their findings were published ...
(Date:9/15/2014)... Sept. 15, 2014 Zymo Research Corp., has ... solution for safe ambient temperature storage and transport ... the infectivity of agents in such samples is ... integrity of the viral nucleic acids for subsequent ... Ebola epidemic in West Africa ...
(Date:9/15/2014)... , Sept. 15, 2014 Research and ... Exome Sequencing Market by Product, by Services, by Technology, by ... offering. Whole Exome Sequencing (WES) is next-generation ... genome, i.e. the exon. The exome, which is the total ... the total genome and is actually converted into proteins after ...
Breaking Biology Technology:Blood-cleansing biospleen device developed for sepsis therapy 2Blood-cleansing biospleen device developed for sepsis therapy 3Blood-cleansing biospleen device developed for sepsis therapy 4Northeastern University Researchers Develop Novel Method for Working with Nanotubes 2Safe storage and transport of Ebola, Mers-CoV, and other viruses: Groundbreaking viral inactivation solution capable of preserving nucleic acids 2Safe storage and transport of Ebola, Mers-CoV, and other viruses: Groundbreaking viral inactivation solution capable of preserving nucleic acids 3Global Whole Exome Sequencing (Systems, Kits, Library Preparation, Target Enrichment) Market by Product, by Services, by Technology, by Application - Forecast to 2018 2Global Whole Exome Sequencing (Systems, Kits, Library Preparation, Target Enrichment) Market by Product, by Services, by Technology, by Application - Forecast to 2018 3
... - Imagine a decision-support tool that misrepresented something simple ... , ,Then imagine employers basing their health plan buying ... tool. , ,Employers don't have to imagine such a ... them, for years. , ,Now a Wisconsin software developer ...
... - Madison Area Technical College 's new ... will help educate the technicians that will be entrusted ... reactor, developed as part of a joint project between ... cooking oil recovered from a restaurant's deep fryer and ...
... - So, it has come to this: A degree ... vote in Wisconsin's Nov. 7 elections. , ,Or perhaps it ... and counter-claims swirling around the "wedge issue" of human embryonic ... doctoral degree by fall, here are a few frequently asked ...
Cached Biology Technology:Healthcare software addresses "90 million" misclassified Americans 2Healthcare software addresses "90 million" misclassified Americans 3MATC bio-diesel reactor to support training 2Fact and friction: Putting election-year stem cell claims under the microscope 2Fact and friction: Putting election-year stem cell claims under the microscope 3Fact and friction: Putting election-year stem cell claims under the microscope 4
... chip to profile the relative abundance of ... 120 human cancer serum biomarker-specific antibodies. A ... to study panels of biomarkers related to ... likelihood of recurrence of cancer. Familiar gene ...
...
... Ventilates and removes chemical ... of exhaust. Bonded charcoal filters ... impellers ensure safe exhaust flow ... 15" access opening. Includes air ...
... benchtop fume hood ventilates and ... indoor release of exhaust. Bonded ... contaminants. Configurations are available with ... include final HEPA filter, work ...
Biology Products: