Navigation Links
Which came first, the moth or the cactus?
Date:8/13/2007

her people at the sites, with the exception of a cowboy on horseback here and there.

There isn't much to see on the long drives to and from Houston either, but Holland said hours of solitude provide a valuable time for thinking and synthesizing what he's learned in the desert. That's important because his ultimate goal reaches far beyond the Sonoran Desert to a fundamental rethinking of ecological theory for such mutualistic interactions.

"I develop theoretical models, equations that attempt to explain mutualistic relationships like the one between the moth and the cactus, and I take those models into the field and examine them empirically to find out how well they predict what really happens," Holland said.

Traditional theory of such mutualistic interactions leads to predictions of unbounded population growth or instability and eventual doom due to one species overexploiting another. These predictions clearly don't square with what Holland and his students see happening in the Sonoran Desert, where both species thrive. Holland's models differ from traditional theory, suggesting that one mutualist may exert some control over the other's population increases, such that neither unbounded growth nor overexploitation ensue.

"I have always been interested in the community ecology of mutualism -- the larger puzzle -- and this moth-cactus relationship is just one piece of that," Holland said. "When we discovered the relationship in 1995, I immediately thought of using it to look at the bigger picture. But in aiming to do that, I wound up spending a decade working on the population ecology of mutualisms, a prerequisite for then understanding this larger puzzle."

Having made some progress on the population ecology of mutualism, some of Holland's current work, which is slated for publication later this year, returns to his earlier interests in community ecology. "We want to understand how the structure of mutualistic communities in
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Identification of specific genes predicts which patients will respond to Hepatitis C treatment
2. Overbearing colored light may reveal a second mechanism by which birds interpret magnetic signals
3. Bacteria which sense the Earths magnetic field
4. Researchers discover which organs in Antarctic fish produce antifreeze
5. First-ever genomic test predicts which lung cancer patients need chemotherapy to live
6. Researchers discover key mechanism by which lethal viruses Ebola and Marburg cause disease
7. Newts which regrow their hearts
8. Reminding doctors which antibiotics to prescribe cuts C. difficile infection rates
9. Killing the messenger RNA -- But which one?
10. Scientists discover stage at which an embryonic cell is fated to become a stem cell
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/29/2014)... Scientists at the Barshop Institute for Longevity and Aging ... UT Health Science Center at San Antonio, have found ... longest-lived rodent, the naked mole rat. , They ... mole rats protects and alters the activity of the ... , The factor also protects proteasome function in human, ...
(Date:8/29/2014)... researcher from the University of Texas Medical Branch at Galveston ... monoclonal antibodies can completely protect monkeys against a lethal dose ... a time when the disease is severe. , Thomas Geisbert, ... Nature discussing advances in Ebola treatment research. The ... the most deadly of pathogens, with fatality rates of up ...
(Date:8/29/2014)... connections in transcription factor networks (TFNs) to evaluate the ... in PLOS Computational Biology in August. ... a network,s resilience against mutations. , "In simulations, ... models has a greater effect on robustness than varying ... Dov A. Pechenick, PhD, lead author and former researcher ...
Breaking Biology News(10 mins):Factor in naked mole rat's cells enhances protein integrity 2Leading Ebola researcher at UTMB says there's an effective treatment for Ebola 2Assortativity signatures of transcription factor networks contribute to robustness 2
... might find it progressively harder to navigate the maze of ... short-term exposure to vehicle pollution, mice showed significant brain damage ... The mind-numbing toxin is not an exhaust gas, but ... and weathering of car parts and pavement, according to the ...
... A groundbreaking clinical study of a new method for preventing ... the medical journal Ultrasound in Obstetrics & Gynecology , ... ( The peer-reviewed findings were led by the Perinatology ... the Wayne State University School of Medicine at Hutzel Hospital ...
... (April 6, 2011) -- Most people experience X-ray computed tomography (CT) ... clot. But in the lab of Dr. Quin Liu, PhD., in ... of CT scanners as part of an agriculture study to increase ... went little potted rice plants in an automated facility that could ...
Cached Biology News:Freeway air bad for mouse brain 2Major breakthrough in preventing premature birth announced by NIH/WSU 2Major breakthrough in preventing premature birth announced by NIH/WSU 3Seeing rice with X-rays may improve crop yields 2
(Date:8/29/2014)... Three Lawrence Livermore researchers have received ... R&D Award for their research in producing ... , Shared with collaborators from the National Renewable ... Las Vegas (UNLV), the award recognizes the team ... production and corrosion processes. , These models have ...
(Date:8/28/2014)... SAN DIEGO, California, USA (PRWEB) August 28, 2014 ... at the Department of Physics and Optical Science and ... at the University of North Carolina at Charlotte, and ... has been elected to serve as the 2015 Vice ... photonics. , SPIE 2014 President Philip Stahl announced recent ...
(Date:8/28/2014)... A new research platform uses a ... tiny structures undergoing stress and heating, an ... designs for microelectronics and batteries., This new ... about how heating and the surface stress ... Researchers have discussed the merits of surface-stress ...
(Date:8/28/2014)... Aug. 28, 2014  Next month, executives from clinical trial ... industry events beginning with Patient-Centered Clinical Trials 2014 , ... Boston , September 4-5. Patient recruitment experts ... Aaron Fleishman will share insights on the benefits of ... of tactics – from media to mobile apps – can ...
Breaking Biology Technology:Livermore Team Awarded for Hydrogen Production Research 2Glenn Boreman, UNC Professor and Plasmonics Co-Founder, Elected to SPIE Presidential Chain 2New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3BBK Worldwide Leads Sessions at Key September Events 2
... , , SAN DIEGO, Sept. 2 ... OPTR ) lead developmental product candidates will be ... and Chemotherapy (ICAAC) to be held at The Moscone Center in San ... http://www.newscom.com/cgi-bin/prnh/20090413/LA97352LOGO ) , , , ...
... , NEW YORK, Sept. 1 Bile ... energy metabolism. Bile acid activation of the G protein-coupled receptor TGR5 has ... conferring resistance to weight gain. Now, a paper published in the current ... 2009) elaborates on a separate TGR5-regulated mechanism in the gut that drives ...
... , , SAN FRANCISCO, ... a different story in August as the Burrill Biotech Select Index suffered ... 1.1 percent. The broader markets, on the other hand, continued their upward ... and the Nasdaq closing up 1.5 percent. , , ...
Cached Biology Technology:Optimer Pharmaceuticals Announces Presentations of Additional Phase 3 Fidaxomicin and Prulifloxacin Data at Upcoming ICAAC Annual Meeting 2Optimer Pharmaceuticals Announces Presentations of Additional Phase 3 Fidaxomicin and Prulifloxacin Data at Upcoming ICAAC Annual Meeting 3Cell Metabolism Publishes Novel TGR5-Mediated Mechanism for the Treatment of Diabetes and Obesity 2Cell Metabolism Publishes Novel TGR5-Mediated Mechanism for the Treatment of Diabetes and Obesity 3Biotech Cools Off in August But Capital Markets Remain Positive 2Biotech Cools Off in August But Capital Markets Remain Positive 3Biotech Cools Off in August But Capital Markets Remain Positive 4
...
BD BioCoat Poly-D-Lysine 60 mm Culture Dishes, tissue-culture treated polystyrene with a uniform application of poly-D-lysine....
... ProteinChip System, Series 4000 incorporates the critical ... and biologists in biomarker research. The Series ... route for converting biomarker discoveries to biomarker ... Series 4000 is designed to fit into ...
Gelatin 100 mm Culture Dishes...
Biology Products: