Navigation Links
Scientists demonstrate importance of niche differences in biodiversity
Date:8/12/2009

(Santa Barbara, Calif.) Scientists at UC Santa Barbara have found strong evidence that niche differences are critical to biodiversity. Their findings are published online in this week's issue of the journal Nature.

"Ecologists have long assumed that species differences in how they use the environment are key to explaining the large number of species we see all around us, but the importance of such niches have never been field tested," said first author Jonathan M. Levine, associate professor in UCSB's Department of Ecology, Evolution, and Marine Biology.

Levine and his co-author Janneke HilleRisLambers, a former postdoctoral fellow at UCSB, who is now an assistant professor at the University of Washington, did field testing of small plants. These plants were found in northern Santa Barbara County on rocky outcrops, where diversity is very high. They used a combination of mathematical techniques, as well as experimental approaches, to remove niche differences from these experimental communities.

"Our work is important because it resolves a century-old biodiversity puzzle," said Levine. "Why doesn't the single best competitor exclude all others in the community?"

Ecological theory has posed two possible answers to the coexistence conundrum. "The classic argument is that niche differences allow species to divide up the environment, much like different products cater to consumers of different tastes or incomes," he said. "The alternative is that competitors are so evenly matched that no single species can win as occurs when different airlines offer the same route for the same price."

Conflict between these hypotheses has formed the single greatest controversy in ecology over the last decade. The new study provides the first strong evidence that species' differences are responsible for their coexistence.

Although the study's primary importance is in advancing pure ecological science, understanding how biodiversity works is critical. It is in those communities in which niche differences maintain diversity that species loss has the greatest impact on plant production, and other ecosystem services to mankind from economic to aesthetic.


'/>"/>

Contact: Gail Gallessich
gail.g@ia.ucsb.edu
805-893-7220
University of California - Santa Barbara
Source:Eurekalert  

Related biology news :

1. UK scientists working to help cut ID theft
2. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
3. Comet probes reveal evidence of origin of life, scientists claim
4. Scientists link fragile X tremor/ataxia syndrome to binding protein in RNA
5. Male elephants get photo IDs from scientists
6. Scientists retrace evolution with first atomic structure of an ancient protein
7. Muscle mass: Scientists identify novel mode of transcriptional regulation during myogenesis
8. Carnegie Mellon scientists develop nanogels that enable controlled delivery of carbohydrate drugs
9. Clemson scientists shed light on molecules in living cells
10. Scientists tackle mystery mountain illness
11. T. rex quicker than Becks, say scientists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists demonstrate importance of niche differences in biodiversity
(Date:4/28/2016)... GOTHENBURG, Sweden , April 28, 2016 ... 1,491.2 M (139.9), up 966% compared with the first quarter of ... Operating profit totaled SEK 589.1 M (loss: 18.8) and the operating ... SEK 7.12 (loss: 0.32) Cash flow from operations was ... , The 2016 revenue guidance is unchanged, SEK 7,000-8,500 M. ...
(Date:4/15/2016)... 2016 Research and Markets has ... Market 2016-2020,"  report to their offering.  , ... ,The global gait biometrics market is expected to ... period 2016-2020. Gait analysis generates multiple ... used to compute factors that are not or ...
(Date:3/29/2016)... Florida , March 29, 2016 ... the "Company") LegacyXChange "LEGX" and SelectaDNA/CSI Protect are pleased ... in ink used in a variety of writing instruments, ... Buyers of originally created collectibles from athletes on LegacyXChange ... forensic analysis of the DNA. Bill ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Prairie, WI (PRWEB) , ... June 23, 2016 ... ... consultancy focused on quality, regulatory and technical consulting, provides a free webinar ... is presented on July 13, 2016 at 12pm CT at no charge. , ...
(Date:6/23/2016)... , June 23, 2016 ... market research report to its pharmaceuticals section with ... product details and much more. Complete ... across 151 pages, profiling 15 companies and supported ... at http://www.reportsnreports.com/reports/601420-global-cell-culture-media-industry-2016-market-research-report.html . The ...
(Date:6/22/2016)... YORK , June 22, 2016  According ... growing next generation sequencing (NGS) market include significant ... of smaller sequencers.  More accessible and affordable sequencers, ... to growing demand for consumables including sample prep ... The Market for Sample Preparation for Next Generation ...
(Date:6/22/2016)... SAN DIEGO , June 22, 2016   ... the first pluripotent stem cell-derived islet replacement therapy for ... two presentations at ISSCR 2016 Annual Meeting.  ISSCR 2016, ... 22nd to 25th at Moscone West in San Francisco.  ... Details of the presentations are as follows:Event: , Focus ...
Breaking Biology Technology: