Navigation Links
Between geometry and biology: How and why does the number of species depend on area
Date:11/10/2011

There are few universal rules in ecology, but arguably one is the relationship between the area of a study plot and the number of species counted within that plot, the so called species-area relationship. Larger study plots obviously host on average more species than do smaller plots, and ecologists have long sought a universal description of this relationship.

Recently, it has been suggested that a universal species-area relationship can be calculated using Maximum Entropy methods once we know the average species richness for plots of a single size and the average number of individuals per species. If such a universal curve could be found, it would allow the development of practical tools for estimating species richness of large areas from smaller samples, or to estimate how many species go extinct after some portion of their habitat is destroyed.

In a paper published in the American Naturalist, a team of ecologists from Charles University in Prague, Czech Republic, and the University of Leeds, UK, have called such grand aspirations into question. They demonstrate that although there is indeed a relationship between the mean population size and the rate at which number of species increases with area, it cannot be universal across different groups of organisms.

"Mathematically, the same species-area relationship cannot hold both for a larger set of species and for the sub-groups within it. For example, the species-area relationship for animals overall cannot be the same as those for verterbrates or invertebrates examined separately", says Arnot izling, theoretical biologist from the Charles University. Rather than a deterministic relationship, the researchers found and described geometric limits that constrain how quickly the number of species can
'/>"/>

Contact: David Storch
storch@cts.cuni.cz
Pensoft Publishers
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Researchers note differences between people and animals on calorie restriction
2. New study indicates link between weight gains during pregnancy and dieting history
3. University professor stresses links between US Navy sonar and whale strandings
4. New book rethinks the relationship between sulfur and crops
5. Stabilizing force for good communication between neurons and muscle cells found
6. A link between mitochondria and tumor formation in stem cells
7. Link possible between pet food contamination and baby formula contamination
8. U of MN study shows link between gene variations and cancer survival
9. Mediator in communication between neurons and muscle cells found
10. Gender biases in leadership selection during competitions within and between groups
11. Interaction between gene variants may alter brain function in schizophrenia
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Between geometry and biology: How and why does the number of species depend on area
(Date:7/9/2014)... July 9, 2014Biofuels derived from the oils produced by ... fuels. To achieve this goal, optimization of cost effective ... pond systems, is needed. Sapphire Energy has developed an ... pond algae cultivation systems, described in Industrial Biotechnology ... publishers. The article is available on the Industrial ...
(Date:7/9/2014)... Cancer Genome Atlas (TCGA) Research Network have identified ... lung adenocarcinoma, the most common subtype of lung ... the number of possible therapeutic targets for this ... patients with treatable mutations because many potent cancer ... TCGA is jointly funded and managed by the ...
(Date:7/9/2014)... era of increasing concern about the prevalence of ... a promising new pathway to disabling disease: blocking ... The scientists showed how bacterial siderophore, a small ... to fan bacterial growth as well as ... this infection process. Their findings appear in a ...
Breaking Biology News(10 mins):Controlling contamination in open algae ponds for biofuels 2Study identifies novel genomic changes in the most common type of lung cancer 2Study identifies novel genomic changes in the most common type of lung cancer 3Bacteria hijack plentiful iron supply source to flourish 2
... American Societies for Experimental Biology (FASEB) announces the opening ... DNA in Mammalian Genomes. Mobile elements have been ... and altering functions within mammalian genomes, and continue to ... explosion of data from high throughput sources, as well ...
... prepared a patient to inhale a panic-inducing dose of carbon ... the mixture, she cried for help, overwhelmed by the sensation ... her 40s known as SM, has an extremely rare condition ... amygdala, an almond-shaped area in the brain long known for ...
... for Experimental Biology (FASEB) announces the opening of registration ... and Flagella. The 2013 Biology of Cilia ... conference where basic and translational research intersect to drive ... ciliopathies. The underlying theme of the 2013 conference is ...
Cached Biology News:Human brain is divided on fear and panic 2Human brain is divided on fear and panic 3
(Date:1/15/2014)... 15, 2014 AudioNotch is the internet's ... for the treatment of tinnitus. Patients listen to sound ... over a period of weeks to months, their tinnitus volume ... two forms: Notched Music and Notched White Noise. Now, AudioNotch ...
(Date:1/14/2014)... January 14, 2014 Carahsoft and CDS ... January 23, 2014 at 2pm EST (11am PST), “Natural ... topic focuses on how technology can turn raw, heterogeneous ... for government agencies. The online webinar will last approximately ...
(Date:1/14/2014)... As pet owners drew up their lists of New Year,s ... better care of my furry companion." Nowadays there are pet salons, ... cases to take the little canine or feline darlings along wherever ... buy some pricey toys at the pet store. But anyone who ...
(Date:1/14/2014)... and BETHESDA, Md. , Jan. ... together with two institutes from the National Institutes of ... for bringing safer, more effective treatments to patients on ... Center for Advancing Translational Sciences (NCATS) and the National ...
Breaking Biology Technology:Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3
... ... information company that develops and supplies irrigation management solutions. The company was approved for ... irrigation management control where “the plant is the sensor™.” , ... (Vocus) April 30, 2010 -- ...
... BEACH, California , and AMSTERDAM , April ... Meeting of the American Society of Breast,Surgeons, Agendia, a ... Research and Treatment has published an important study,demonstrating the ... breast cancer recurrence according to the MammaPrint test. The,ASBS ...
... April 29  Scotland will showcase the ... the world,s leading pharma and biotech companies to its ... in Chicago .  Heading into the conference, ... the nation,s unique integrated industry approach will continue to ...
Cached Biology Technology:$250,000 Awarded to Smartfield, Inc. of Lubbock, TX by the Texas Emerging Technology Fund 2New Study Demonstrates Patients With High-Risk MammaPrint Profile Benefit From Chemotherapy 2New Study Demonstrates Patients With High-Risk MammaPrint Profile Benefit From Chemotherapy 3Scotland Announces New Life Science Leadership and Investments at BIO 2010 2Scotland Announces New Life Science Leadership and Investments at BIO 2010 3Scotland Announces New Life Science Leadership and Investments at BIO 2010 4
... life easier. It offers a wide array of features ... *Instruments supported: ... XP, PR, SR, PG-S, PG, SG, AT, MT, UMT, ... User guidance on the balance display ...
High affinity antibody reacting with S-100 ab heterodimer. Could be used for Western blotting application and immunoassay....
ZBP-89 (S-15)...
... CoA ligase (AMP forming), Acetate thiokinase ... content. Physical form: Lyophilized powder ... reduced glutathione Preparation Unit Definition: ... S-acetyl coenzyme A from acetate, ATP and ...
Biology Products: