HOME >> BIOLOGY >> NEWS
'Rock-paper-scissors' preserves biodiversity in bacterial neighborhoods

The hand game of "rock-paper-scissors" is perpetual one-upmanship: rock crushes scissors, scissors cut paper and paper covers rock. In the July 11 issue of the journal Nature, researchers at Stanford and Yale report that certain bacteria can play their own version of that game. Populations chase each other around the petri dish in a set of incessant skirmishes that lack a clear victor but conserve biodiversity of the overall ecosystem. But biodiversity breaks down in the uniform environment of a well-mixed flask - demonstrating that spatial separation may be necessary for different populations to coexist.

"The scale at which organisms interact and disperse can have profound effects on the maintenance of biodiversity," says co-author Brendan Bohannan, an assistant professor of biological sciences at Stanford. "Organisms exist in neighborhoods in nature, and historically that's been overlooked by many ecologists. And the fact that they exist in neighborhoods has profound implications for the maintenance of biodiversity."

Other authors of the Nature paper are biological sciences graduate student Benjamin Kerr and Professor Marcus Feldman, both of Stanford, and Associate Professor Margaret Riley of Yale, who spent her sabbatical at Stanford from 1999 to 2000. Feldman, the Burnet C. and Mildred Finley Wohlford Professor in the School of Humanities and Sciences, is a theoretical biologist. Bohannan is interested in both theoretical and experimental aspects of microbial ecology, and Riley is a microbiologist interested in ecology and evolution. Kerr brought this group together, creating computer simulations with Feldman and Bohannan to explore these ideas theoretically and developing microbial systems with Bohannan and Riley to test these ideas experimentally.

The researchers worked with three populations of the world's best-studied bacterium, Escherichia coli. One population carries a natural genetic element (called a plasmid) that serves as the bl
'"/>

Contact: Dawn Levy
dawnlevy@stanford.edu
650-725-1944
Stanford University
10-Jul-2002


Page: 1 2 3 4 5

Related biology news :

1. Patented process preserves transplant tissues/organs
2. Researchers discover use of novel mechanism preserves Y chromosome genes
3. Largest fossil cockroach found: Site preserves incredible detail
4. Evidence for the impact of climate change on deep-sea biodiversity
5. 8 environmental stewards win $900,000 in biodiversity awards
6. New framework for biodiversity conservation
7. Symposium to tackle questions of genetic engineering and biodiversity
8. Leading scientists design new framework for biodiversity conservation
9. Manipulating biotope space can enhance beneficial biodiversity effects
10. First ever standards linking climate change, biodiversity and poverty seek global peer review
11. The ecological equivalent of Ellis Island: from ancestry to biodiversity

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/16/2018)... ... October 15, 2018 , ... Modality Solutions, a ... is a silver sponsor and exhibitor at the Executive Platforms’ Biomanufacturing World Summit ... World Summit brings together the “who’s who” of pharmaceutical executives, cutting-edge technology providers ...
(Date:10/13/2018)... ... October 12, 2018 , ... ... MD, board certified in colorectal surgery, to its Medical Advisory Board. Joining the ... bring to uBiome his deep expertise in the surgical treatments of ulcerative colitis ...
(Date:10/11/2018)... ... October 09, 2018 , ... ... high-impact life science and biotechnology companies, announced today that it will host ... discuss their investment philosophies, explain their fund and deal structures, and describe ...
Breaking Biology News(10 mins):
(Date:10/2/2018)... (PRWEB) , ... October 02, 2018 , ... ... ) announced this week that teams have initiated validation of standards and testing ... under the direction of Dr. Larry Kennedy, ACRES VP for Quality Management Systems ...
(Date:9/28/2018)... ... September 28, 2018 , ... LabRoots , the leading ... from around the world, is excited to announce Daniel Andrade, a 22-year-old undergraduate ... winner of the LabRoots Summer 2018 Textbook Scholarship, awarding him $1,000 to support ...
(Date:9/27/2018)... ... September 26, 2018 , ... Medable was ... aims to build the first human digitome, a digital representation of human health ... a seamless integration of all data sources. Dr. Michelle Longmire, Co-Founder and CEO ...
(Date:9/27/2018)... (PRWEB) , ... September 27, 2018 , ... ... offices in Cambridge, MA, announce today that Holotype HLA and other Omixon products ... annual meeting of the American Society for Histocompatibility and Immunogenetics (ASHI) in Baltimore, ...
Breaking Biology Technology:
Cached News: