Navigation Links
Over the hump: Ecologists use power of network science to challenge long-held theory
Date:9/22/2011

For decades, ecologists have toiled to nail down principles explaining why some habitats have many more plant and animal species than others.

Much of this debate is focused on the idea that the number of species is determined by the productivity of the habitat.Shouldn't a patch of prairie contain a different number of species than an arid steppe or an alpine tundra?

Maybe not, says an international team of scientists that pooled its resources to re-evaluate the relationship between species numbers and habitat productivity.

The innovative, standardized global sampling of 48 sites on five continents yielded an unprecedented data set.

"Our study shows no clear relationship between productivity and the number of plant species in small study plots," says Utah State University plant ecologist Peter Adler.

Scientists say Adler's and his colleagues' findings represent a significant advance in ecological thought. The findings appear in this week's issue of the journal Science.

"We challenged a prevailing model developed in the early 1970s by British ecologist J. Philip Grime," says Adler, lead author of the paper. "He proposed that the number of species rises then declines with increasing productivity."Though hotly debated, this "hump-shaped" model has remained a textbook standard for nearly four decades.

"In the search for underlying principles of ecology in a very complex natural world, it's inevitable that even long-standing and accepted theories will be debunked as more data are accumulated and synthesized," says Henry Gholz, program director in the National Science Foundation's (NSF) Division of Environmental Biology, which funded the research.

In an "Emperor's New Clothes" moment, Adler remembers skeptical observations about the hump-shaped model made by graduate students in his classroom.

"'Why do ecologists spend so much time on this model when the evidence to support it
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Ecologists use 70-year-old pressed plants to chart citys vanishing native flora
2. Ecologists get fish eye view of sexual signals
3. Ecologists find new clues on climate change in 150-year-old pressed plants
4. Ecologists to discuss impacts of mountaintop mining at special ESA symposium
5. Ecologists receive mixed news from fossil record
6. Nations largest organization of ecologists offers expert database
7. Ecologists discover forests are growing faster
8. Ecologists sound out new solution for monitoring cryptic species
9. The value of variation: Ecologists consider the causes and consequences
10. Ecologists question effects of climate change on infectious diseases
11. Ecologists report quantifiable measures of natures services to humans
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Over the hump: Ecologists use power of network science to challenge long-held theory
(Date:12/5/2014)... , Dec. 4, 2014 Increased emphasis ... investments in new testing and inspection technologies. The ... rise to a range of innovative test solutions. ... of Generation Y, which is generally more inclined ... result, product development strategies of test equipment vendors ...
(Date:11/21/2014)... 2014 According to a new ... (Video, RFID, Access Control, Intrusion Detection, Parking Management, Under ... Component Service Geography - Global Forecasts to 2020", published ... to be around $25 Billion in 2014 and is ... a CAGR of 8.69%. Browse 116 market ...
(Date:11/18/2014)...  The Secure Identity & Biometrics Association (SIBA) ... the formation of The Airport Entry and Exit ... and Biometric Entry and Exit Solutions Framework for ... from BORDERPOL, the international non-profit organization that works ... regarding border security, traveler and migration systems. ...
Breaking Biology News(10 mins):Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 3Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 4Industrial Security Systems Market Worth $38 Billion by 2020 2Industrial Security Systems Market Worth $38 Billion by 2020 3Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3
... , ,Mathematical models continue to play a major ... and control of malaria, a life-threatening parasitic disease ... Although existing models have advanced our understanding of ... new challenges., The National Institute for Mathematical and ...
... JOLLA, CA January 18, 2011 Using chemical compounds ... clever application of ultraviolet light, a Scripps Research Institute team ... to test for biomedical potential. Already, one of the compounds ... and fighting inflammation. With the report of their ...
... how the hormones progesterone and estrogen interact to increase ... a novel finding that may explain why postmenopausal women ... at increased risk of breast cancer. The discovery ... the increased production of the protein amphiregulin, which binds ...
Cached Biology News:Malaria modeling and control focus of workshop 2Scripps Research team creates new synthetic compound with HIV-fighting promise 2Scripps Research team creates new synthetic compound with HIV-fighting promise 3Researchers unlock how progesterone increases breast cancer risk 2
(Date:12/17/2014)... Ipsen Biopharmaceuticals, Inc., an affiliate ... IPSEY), today announced that Somatuline® Depot® (lanreotide) ... approved by the U.S. Food and Drug Administration ... (GEP-NETs) in adult patients with unresectable, well or ... improve progression-free survival (PFS). , “The approval of ...
(Date:12/17/2014)... This report is a professional and ... an overview analysis, the report introduces quartz tubing ... industry overview, policy analysis, and news analysis, etc. ... witnessed rapid development with key manufacturers increasing their ... mentions quartz tubing upstream raw materials and equipment, ...
(Date:12/17/2014)... Gene synthesis and bioengineering company ... into a technology access and services agreement with ... proprietary protein engineering technology, known as “ProteinGPS®” to ... extremely excited that the global leader ADM has ... bioengineering technology has now been validated through many ...
(Date:12/17/2014)... 16, 2014  Vermillion, Inc. (NASDAQ: VRML ... today announced the next step in its expanded strategy ... provider with the naming of current Chief Operating Officer, ... Officer, while current Chairman of the Board and CEO ... Chairman. These changes are effective January 1, 2015. ...
Breaking Biology Technology:Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 2Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 5Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 6Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 7Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 82020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 3Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 4
... we just escaped January a notoriously depressing month ... and dank weather thats no surprise. In fact, ... week ago) was the most depressing day of the ... psychological burden because of the challenges they face, their ...
... for presentation times at the Midwest Venture Summit on May ... will be selecting only a handful of presenters out ... , ,Applicants will be reviewed by a panel of investors ... consider the products that each company is producing and developing, ...
... W.M. Keck Foundation of Los Angeles has given ... how stem-cell cultures remain able to develop any other type ... scientist James Thomson was the first to grow ... are given some impetus to form other kinds of cells ...
Cached Biology Technology:Post-January, tech entrepreneurs have reasons to be depressed 2Post-January, tech entrepreneurs have reasons to be depressed 3Post-January, tech entrepreneurs have reasons to be depressed 4Follow the money 2Follow the money 3
... Do you need to make your ... transformation efficiency? Take advantage of Lucigen’s unrivalled ... Custom Competent Cell Service offers: ... transformation efficiencies Fast turnaround ...
... products ATP-Free using Mo Bio luciferase assay. Mo ... service that will allow you to certify your ... and enable you to deliver them to your ... ATP detection limit is 3.5 x 10-12 /l, ...
Glucagon-like peptide-1 (GLP-1 (1-36) amide)...
... 'A New Concept in Microarrays: Biomedical ... chip technologies GmbH (Jena, Germany) have collaborated ... new CLONDIAG ArrayTube System. The DNAscope ... technology. The new DNAscope AT automatically reads ...
Biology Products: