Navigation Links
Environmental complexity promotes biodiversity

The study, led by McGill University evolutionary biologist Ben Haller in collaboration with IIASA Evolution and Ecology Program Leader Ulf Dieckmann and IIASA researcher Rupert Mazzucco, suggests that a varied environment spurs the evolution of new species and promotes biodiversity by creating places of refuge"refugia"for new organisms to evolve.

The model represents asexual organisms that reproduce like plants. To investigate how environmental variation affects evolution, Haller modeled an environment with complex spatial structure. "We wanted to look at more realistic environments, with more random variation in environmental conditions from place to place," says Haller. While simpler than a real-world environment, the resultant model provides a much more realistic basis for studying biodiversity formation than has been possible before.

In addition to the new "refugium effect," the study shows that too much variation can end up being detrimental for biodiversity. "It's a little like the story of Goldilocks and the Three Bears," says Haller. "For promoting biodiversity, you can have too little variation, or too much variation, or the variation can be just right."

The study also shows that the scale of landscape variation, in comparison with a species' dispersal distance, changes how much biodiversity can emerge.

The new work provides a better basis for understanding how biodiversity evolves. While many people laud the idea of preserving biodiversity, says Haller, much remains unknown about what an environment needs in order to maintain or produce biodiversity. "It's very hard to conserve something that you don't even understand," says Haller.

Haller started the work as part of his participation in IIASA's Young Scientists Summer Program, working with Dieckmann and Mazzucco.


Contact: Katherine Leitzell
International Institute for Applied Systems Analysis

Page: 1

Related biology news :

1. Safe levels of environmental pollution may have long-term health consequences
2. Survey highlights barriers to interdisciplinary environmental science
3. New tests for determining health and environmental effects of nanomaterials
4. OU biologist focuses on global environmental change in lakes
5. Southerners are less trusting, but trust is a factor in environmental cooperation, study shows
6. Fetal neuromaturation associated with mothers exposure to ddt and other environmental contaminants
7. REFORM, opening up the way for low environmental impact products
8. New ACS journal Environmental Science and Technology Letters to rapidly publish urgent research
9. Odor and environmental concerns of communities living near waste disposal facilities
10. Earth Week: American U. launches William K. Reilly Fund for Environmental Governance & Leadership
11. Food and Environmental Virology adds society affiliation
Post Your Comments:
(Date:4/26/2016)... and LONDON , ... Finacle, part of EdgeVerve Systems, a product subsidiary ... Onegini today announced a partnership to integrate the ...      (Logo: ) ... provide their customers enhanced security to access and ...
(Date:4/15/2016)... April 15, 2016 Research ... Gait Biometrics Market 2016-2020,"  report to their offering.  ... ) , ,The global gait biometrics market is ... during the period 2016-2020. Gait analysis ... can be used to compute factors that are ...
(Date:3/31/2016)... 2016  Genomics firm Nabsys has completed a financial ... Bready , M.D., who returned to the company in ... leadership team, including Chief Technology Officer, John Oliver ... Nurnberg and Vice President of Software and Informatics, ... Dr. Bready served as CEO of Nabsys from ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Mass. , June 23, 2016   ... development of novel compounds designed to target cancer ... napabucasin, has been granted Orphan Drug Designation from ... the treatment of gastric cancer, including gastroesophageal junction ... stemness inhibitor designed to inhibit cancer stemness pathways ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm Sciences, Inc. is pleased ... received AOAC Research Institute approval 061601. , “This is another AOAC-RI approval of ... Salter, Vice President of Regulatory and Industrial Affairs. “The Peel Plate methods perform ...
(Date:6/23/2016)... ... 2016 , ... Supplyframe, the Industry Network for electronics hardware ... . Located in Pasadena, Calif., the Design Lab’s mission is to bring together ... built and brought to market. , The Design Lab is Supplyframe’s physical representation ...
(Date:6/23/2016)... June 23, 2016  Blueprint Bio, a company dedicated ... the medical community, has closed its Series A funding ... . "We have received a commitment from ... we need to meet our current goals," stated ... the runway to complete validation on the current projects ...
Breaking Biology Technology: