Navigation Links
Study: Ecological effects of biodiversity loss underestimated
Date:11/30/2010

ses, hundreds of species in an ecosystem. Rudolf said Lafferty's food webs include data about specific resource requirements for particular developmental stages within species, in some instances for as many as 50 percent of the species in the ecosystem.

"With this data, we were able to estimate the percentage of resources that are actually shared among developmental stages," Rudolf said. "In addition, we were able to show how this affects the stability of natural ecosystems.

"We found that in most food webs, the individual stages of a species typically share less than 50 percent of their resources," he said. "And within certain subgroups, like metamorphic species, that number is sometimes less than 10 percent."

The researchers used the information to formulate computer models that simulated how the loss of species affects natural ecosystems. One important implication of the finding is that natural ecosystems are much less stable than previously assumed, and many at-risk species may face an even greater likelihood of becoming extinct than ecologists previously thought.

"Our results suggest that the increasing loss of biodiversity -- due to changing climate, habitat destruction and other causes -- will likely have much more devastating effects on natural communities and result in a greater number of species extinctions than previously believed," Rudolf said.


'/>"/>

Contact: David Ruth
druth@rice.edu
713-348-6327
Rice University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study: urban black bears live fast, die young
2. Study: Bird diversity lessens human exposure to West Nile Virus
3. Study: Tropical wetlands hold more carbon than temperate marshes
4. Study: Wildlife need more complex travel plans
5. Study: Elderly Women can increase strength but still risk falls
6. UNC study: Text messaging may help children fight off obesity
7. Study: Did early climate impact divert a new glacial age?
8. Study: Excessive use of antiviral drugs could aid deadly flu
9. UNC study: Tinkering with the circadian clock can suppress cancer growth
10. Study: Fluid buildup in lungs is part of the damage done by the flu
11. Study: Health undervalued in reproductive rights debate
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2015)... , Aug. 19, 2015  VOXX International Corporation ... has entered into a Definitive Agreement to purchase ... iris authentication market leader EyeLock through an acquiring ... have a controlling interest in the acquiring entity. ... completion of due diligence.  Expanding on its existing ...
(Date:8/18/2015)... Research and Markets ( http://www.researchandmarkets.com/research/9dmm6l/global_biometric ) ... Biometric Authentication & Identification Market: Focus On Modality, ... report to their offering. ... is expected to grow at an estimated CAGR ... over $25 billion (approximately) by 2020 as per ...
(Date:8/12/2015)...   MedNet Solutions , an innovative SaaS-based eClinical ... research, is proud to announce that iMedNet ... technology platform, has led the way to significant and ... 2015.   Q2 2015 and Q1 2015 were, respectively, ... value sold in the company,s 15 year history.  In ...
Breaking Biology News(10 mins):VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 2VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 4VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 5Global Biometric Authentication & Identification Market 2015: Focus On Modality, Motility & Application - Estimation & Forecasts to 2020 for the $25 Billion Industry 2MedNet Solutions Experiences Explosive Corporate Growth 2
... DURHAM, N.H. University of New Hampshire ... $498,115 to advance understanding of the actinorhizal plants, ... and contaminated soils. The United States ... of molecular, cellular and biomedical sciences, $399,000 to ...
... toads have existed for 360 million years and survived when ... to make many of them extinct, according to an article ... The fungus, Batrachochytrium dendrobatidis (Bd), was found ... America and north-eastern Australia in the 1990,s. Bd infects over ...
... for Child Health Research has found evidence that the amount ... in different ways. The study has just been published ... author Colleen O,Leary said the analysis was drawn from a ... questionnaire three months after the baby,s delivery, and were then ...
Cached Biology News:UNH prof. receives nearly $500,000 to research environmentally significant plants 2New study links alcohol in pregnancy to child behavior problems 2
(Date:9/3/2015)... ... September 03, 2015 , ... ... 18 months ago. Conventional treatment and therapy were not working so Zach decided ... 2015. Dr. McKenna treated Zack with precisely guided injections of bone marrow aspirate ...
(Date:9/3/2015)... 2015  Vermillion, Inc. (NASDAQ: VRML ), a ... that Herbert Fritsche , Ph.D., the Lab Director ... recipient of the 2015 Abbott Award, given by the ... contributions to the field of basic or clinical oncology. ... th in Zakopane, Poland . ...
(Date:9/3/2015)... , Sept. 3, 2015  StemProtein LLC, ... a recent spinout of Stemedica Cell Technologies Inc., ... Silberg as CEO of StemProtein. Silberg will ... producing and preserving Stem Cell Factors (SCFs), a ... professional in the pharmaceutical and biopharmaceutical industries with ...
(Date:9/3/2015)... ... 2015 , ... Park Systems announced that they will host a ... PST. The webinar will focus on the methods and materials for additive manufacturing – ... is a broad term that encompasses “addition or fusion” of materials to create an ...
Breaking Biology Technology:UCLA Wide Receiver and Canadian Decathlon Standout Zack Bornstein Bounces Back After Stem Cell Therapy at Riordan-McKenna Institute 2UCLA Wide Receiver and Canadian Decathlon Standout Zack Bornstein Bounces Back After Stem Cell Therapy at Riordan-McKenna Institute 3Vermillion Announces Dr. Herbert Fritsche as Recipient of the 2015 Abbott Award from the International Society of Oncology and Biomarkers 2StemProtein Names Thomas H. Silberg As CEO, To Focus On Stem Cell Secreted Proteins Addresing A Variety Of Health And Beauty Related Needs 2StemProtein Names Thomas H. Silberg As CEO, To Focus On Stem Cell Secreted Proteins Addresing A Variety Of Health And Beauty Related Needs 3Park Systems Announces Webinar on 3D Printing and Additive Manufacturing for Nano-Scientists, Researchers in Nanotechnology and Engineers 2Park Systems Announces Webinar on 3D Printing and Additive Manufacturing for Nano-Scientists, Researchers in Nanotechnology and Engineers 3Park Systems Announces Webinar on 3D Printing and Additive Manufacturing for Nano-Scientists, Researchers in Nanotechnology and Engineers 4
... The past is a source of knowledge, and the ... S. Ambrose (1936-2002) Ernest Mueller , ... other archival collections represent,a rich source of study material, much of ... experts in the field. While the majority of,this material was originally ...
... , ... Researchers in New Brunswick Scientific's in-house ... antibiotic expression levels in a pilot-scale fermentation process of,Streptomyces ... interface augmented by the powerful supervisory capabilities of AFSBioCommand,software, ...
... , ... cell-growth matrix that dramatically increase yields in packed-bed reactors, and,have also ... New Brunswick,Scientific offers two new devices that use FibraCel disks to ... that outperforms spinners, T-flasks and roller bottles, and the CelliGen ...
Cached Biology Technology:Genomic Analysis of Formalin-Fixed Paraffin Embedded (FFPE) Tissues through the use of Whole Genome Amplification (WGA) 2Genomic Analysis of Formalin-Fixed Paraffin Embedded (FFPE) Tissues through the use of Whole Genome Amplification (WGA) 3Genomic Analysis of Formalin-Fixed Paraffin Embedded (FFPE) Tissues through the use of Whole Genome Amplification (WGA) 4Genomic Analysis of Formalin-Fixed Paraffin Embedded (FFPE) Tissues through the use of Whole Genome Amplification (WGA) 5Genomic Analysis of Formalin-Fixed Paraffin Embedded (FFPE) Tissues through the use of Whole Genome Amplification (WGA) 6Genomic Analysis of Formalin-Fixed Paraffin Embedded (FFPE) Tissues through the use of Whole Genome Amplification (WGA) 7Rapamycin Optimized in 100 Liter Fermentor Using BioCommand Control Strategys 2Rapamycin Optimized in 100 Liter Fermentor Using BioCommand Control Strategys 3A technique for increasing yields in bioreactors and disposable cell-culture systems 2A technique for increasing yields in bioreactors and disposable cell-culture systems 3A technique for increasing yields in bioreactors and disposable cell-culture systems 4
Carp Vitellogenin ELISA System, 96 wells. ELISARange: 5.0-225 ng/ml.Sensitivity: 5.0 ng/ml.Sample volume: 100 ul.Suitable for use with Carp plasma samples.3-h protocol.Store at 2-8 C. Category: Drug ...
Blot Paper 7 x 8.5cm semi-dry western blots (order number RB-400)...
... PCR Purification Kits provide rapid and efficient ... PCR products, and salts from PCR products ... provides two Binding Buffer options for ... can be performed in either single column ...
... transcripts with the translation boosting Cap 1 ... capped (versus 40% to 80% capped using ... 2 hours. mScript™ also features the Cap ... be up to 50% more efficient in ...
Biology Products: