Navigation Links
A new model for understanding biodiversity
Date:11/21/2011

Animals like foxes and raccoons are highly adaptable. They move around and eat everything from insects to eggs. They and other "generalist feeders" like them may also be crucial to sustaining biological diversity, according to a new study published in the Proceedings of the National Academy of Sciences (PNAS).

McGill biology researchers have developed a unified, spatially based understanding of biodiversity that takes into account the complex food webs of predators and prey. "Biodiversity exists within a landscape. Predators and prey are continuously on the move as their habitats change it's a complex dynamic system," says lead author Pradeep Pillai, a doctoral candidate at McGill.

Previous theories of biodiversity have either concentrated on the complex network of feeding interactions that connects all species into food webs or have focused on the way that species are connected in space. "A unified theory of ecological diversity requires understanding how species interact both in space and time, and this is what is different about our work," explains co-author Michel Loreau, who holds the Canada Research Chair in Theoretical Community and Ecosystem Ecology.

What they discovered was that a "branching network" maintained by generalist species, like foxes or coyotes, that are able to move around and prey on different species in different locations, have an important role in promoting complex food webs and thereby in maintaining biodiversity. The researchers concluded that these generalist species have the advantage of being able to find prey no matter where they are as they move from one place to another, and this sustains the network.

This theory also lays a foundation for understanding the effects human activities like deforestation are likely to have not simply on a single species but on whole food webs. The researchers show how food webs are eroded by species extinction when disturbed by habitat destruction. "Th
'/>"/>

Contact: Katherine Gombay
katherine.gombay@mcgill.ca
514-398-2189
McGill University
Source:Eurekalert

Page: 1 2

Related biology news :

1. New model more accurately describes migratory animals extinction risk
2. Teaching skills key to selection of a successful model farmer
3. Space shuttle data leads to better model for solar power production in California
4. Model of enzymes structure could spur new therapies
5. OpenSim open-source software from Stanford accurately models human motion
6. WSU researchers demonstrate rare animal model for studying depression
7. New Zealand use of health IT provides model
8. Modeling cancer using ecological principles
9. Scientists model the pathways of pain-blocking meds
10. New model for treatment of obsessive-compulsive disorder created
11. Engaging land-use stakeholders is model behavior
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/16/2014)... school biology taught us that we inherit certain traits ... you could change how these genes play out by ... diet? That,s exactly what a team of researchers ... proposed through their research of epigenetics research. , ... chemically modifying DNA and histone proteins, which prevent permanent ...
(Date:9/16/2014)... own bacterial identity. That,s the conclusion of University of ... the genetic fingerprints of bacteria on 57 species of ... demonstrates for the first time that host plants from ... very different microbial communities on their leaves," said lead ... the UO,s Institute of Ecology and Evolution who is ...
(Date:9/16/2014)... 10-km diameter chunk of rock hit the Yukatan peninsula near ... force of 100 teratons of TNT. It left a crater ... global earthquakes and volcanism are widely accepted to have wiped ... the mammals. But what happened to the plants on which ... from the University of Arizona reveals that the meteorite impact ...
Breaking Biology News(10 mins):Epigenetic drugs: A hope to treat cancer resistance and reduce cancer relapse? 2Epigenetic drugs: A hope to treat cancer resistance and reduce cancer relapse? 3Microbiome research shows each tree species has a unique bacterial identity 2Meteorite that doomed the dinosaurs helped the forests bloom 2Meteorite that doomed the dinosaurs helped the forests bloom 3
... DALLAS May 20, 2008 Mutations in two ... the brain involved in sleep create a human-like insomnia ... found. The findings may help scientists better understand the ... This is one of the most dramatic ...
... exposure to chemicals is on the increase. From food ... with potentially-toxic substances could be affecting our health ... Nottingham are set to take part in one of ... on female mammals. Part of the Reproductive Effects of ...
... CITY Researchers have been unable to build an ... dream of ultrafast optical computers. But now, University of ... photonic crystals with the ideal, diamond-like structure: They are ... beetle from Brazil. It appears that a simple ...
Cached Biology News:Gene mutations in mice mimic human-like sleep disorder, UT Southwestern researchers find 2Do chemicals in the environment affect fertility? 2The photonic beetle 2The photonic beetle 3The photonic beetle 4The photonic beetle 5
(Date:9/17/2014)... -- BioClinica®, Inc., a leading provider of outsourced clinical ... its experts are speaking at the 20th Annual ... held September 28 to October 1 in ... the innovative Compass technology, a risk-based monitoring ... earlier this year, is up for the Technology ...
(Date:9/17/2014)... PITTSBURGH , Sept. 17, 2014 ... maker of MD-Cu 29 antimicrobial copper, announces Gilmour ... points to the first EPA-registered antimicrobial solid touch surface ... copper is a reasonably priced surface that kills greater ... 2 hours of exposure. 1 ...
(Date:9/17/2014)... , Sept. 17, 2014 RXi ... biotechnology company focused on discovering, developing and commercializing ... RNA-targeted technologies, today announced that it has been granted ... Trademark Office on its unique delivery system for ... to phagocytic cells for the treatment of diseases ...
(Date:9/17/2014)... 2014 First antibacterial ... a truly novel class of anti-infective in ... a biopharmaceutical company developing a truly novel ... has secured £4.0m ($6.4m) to advance the ... a range of Gram-positive infections including  Clostridium ...
Breaking Biology Technology:BioClinica to Present at 20th Annual SCDM Conference 2BioClinica to Present at 20th Annual SCDM Conference 3Innovative Gilmour Academy Ice Arena changes more than 200 fixtures to Hussey Copper's MD-Cu29 antimicrobial copper to help protect against bacteria 2Innovative Gilmour Academy Ice Arena changes more than 200 fixtures to Hussey Copper's MD-Cu29 antimicrobial copper to help protect against bacteria 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 2RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 2MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 3MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 5MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 6MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 7
... , Jan. 12 Novavax, Inc. (Nasdaq: ... pre-clinical safety and efficacy study of its RSV vaccine candidate ... support an Investigational New Drug (IND) application to advance this ... into clinical development.  This vaccine candidate is composed of recombinant ...
... ... a standalone Windows® desktop application for viewing eCTD submissions created for any region. ... Marlborough, MA (PRWEB) January 12, ... for the life sciences industry, today announced the release of Datafarm VUE, a new addition ...
... ... VA, will discuss practical approaches to President Obama’s challenges to "find the needle in ... ... connect the dots” on the Christmas bomber in his recent address to the Nation. ...
Cached Biology Technology:NOVAVAX Announces Positive Preclinical Results for its Respiratory Syncytial Virus (RSV) Vaccine Candidate 2NOVAVAX Announces Positive Preclinical Results for its Respiratory Syncytial Virus (RSV) Vaccine Candidate 3NOVAVAX Announces Positive Preclinical Results for its Respiratory Syncytial Virus (RSV) Vaccine Candidate 4NOVAVAX Announces Positive Preclinical Results for its Respiratory Syncytial Virus (RSV) Vaccine Candidate 5Datafarm Releases New Desktop-based Application for Multi-region Viewing of eCTD Submissions: Datafarm VUE 2NDIA's Biometrics Conference to Address Practical Approaches to the President's Challenge of 'Connecting the Dots' and Implementing $1B for New and Additional Security 2
COMING SOON: Anti-Mouse C5a Receptor (CD88), Clone 10/92 Monoclonal Antibody...
... SARA ( Abpromise for all tested ... peptide: PVPKEMEQPV QTEEEDVELP conjugated to KLH, corresponding ... (Drosophila melanogaster) SARA. Conserved sequence unique ... ID: 9372 Swiss ...
Rabbit polyclonal to Bag5 ( Abpromise for all tested applications). entrezGeneID: 9529 SwissProtID: Q9UL15...
AADAC Immunogen: AADAC (NP_001077, 201 a.a. ~ 301 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
Biology Products: