HOME >> BIOLOGY >> NEWS
Soil nutrients shape tropical forests, large-scale study indicates

CHAMPAIGN, Ill. -- Tropical forests are among the most diverse plant communities on earth, and scientists have labored for decades to identify the ecological and evolutionary processes that created and maintain them. A key question is whether all tree species are equivalent in their use of resources water, light and nutrients or whether each species has its own niche.

A large-scale study by researchers at the University of Illinois at Urbana-Champaign and eight other institutions sheds some light on the issue. It indicates that nutrients in the soil can strongly influence the distribution of trees in tropical forests. The finding, published this week in the Proceedings of the National Academy of Sciences, challenges the theory that at local scales tree distributions in a forest simply reflect patterns of seed dispersal, said James W. Dalling, a U. of I. professor of plant biology and a principal researcher on the study.

The study evaluated three sites: two lowland forests, in central Panama and eastern Ecuador, and a mountain forest in southern Colombia. The researchers plotted every tree and mapped the distribution of soil nutrients on a total of 100 hectares (247 acres) at the sites. The study included 1,400 tree species and more than 500,000 trees.

The researchers compared distribution maps of 10 essential plant nutrients in the soils to species maps of all trees more than 1 centimeter in diameter. Each of the sites was very different, but at each the researchers found evidence that soil composition significantly influenced where certain tree species grew: The spatial distributions of 36 to 51 percent of the tree species showed strong associations with soil nutrient distributions.

Prior to the study, the researchers had expected to see some influence of soil nutrients on forest composition, but the results were more pronounced than anticipated.

"The fact that up to half of the species are showing an association w
'"/>

Contact: Diana Yates
diya@uiuc.edu
217-333-5802
University of Illinois at Urbana-Champaign
11-Jan-2007


Page: 1 2

Related biology news :

1. Boosting key milk nutrients may help lower type 2 diabetes risk
2. Boosting key milk nutrients may protect against cancer
3. Pimp my meatballs -- collagen injections safeguard nutrients
4. Too much of a good thing? Excess nutrients or water limit biodiversity
5. Fish extinctions alter critical nutrients in water, study shows
6. Proposed FDA claim recognizes role of key nutrients in dairy in reducing osteoporosis risk
7. Tropical rainforest nutrients linked to global carbon dioxide levels
8. Key nutrients critical for older infants development
9. Mechanism for the captation of nutrients in plants- unknown to date
10. Missing micronutrients - How best to nourish a child?
11. Facial attraction -- choice of sexual partner shaped the human face

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/2/2020)... ... ... Toronto-based clinical research organization (CRO) and regulatory consulting firm, dicentra , has announced ... Clarksburg on a farm on Beaver Valley Road. , The owners currently operate an ... it would be a great new option for employees to relocate to. , “Part ...
(Date:3/2/2020)... CHICAGO (PRWEB) , ... March 02, 2020 , ... ... attendance at the 71st annual Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy ... in Chicago, Illinois. Pittcon is the world’s leading annual conference and exposition on ...
(Date:2/28/2020)... ... February 27, 2020 , ... An upcoming episode of Advancements ... maladies, such as Inflammatory Bowel Disease (IBD), specifically Crohn’s Disease (Crohn’s), and Oncology. ... a novel platform developed by Deka Biosciences, Inc. (Deka Biosciences), that will enable ...
Breaking Biology News(10 mins):
(Date:3/19/2020)... ... March 17, 2020 , ... ... with pioneering gene circuit company Senti Biosciences, Inc. (Senti) to accelerate the ... solid tumor indications. The collaboration will leverage RoosterBio’s human mesenchymal stem/stromal cell ...
(Date:3/10/2020)... ... March 10, 2020 , ... Ortho Clinical Diagnostics, a global leader of ... its ORTHOTM Sera, ID-MTS, a suite of extended antigen in a gel testing format ... on ORTHO VISION® and ORTHO VISION® Max in the United States and Canada. The ...
(Date:3/4/2020)... ... March 04, 2020 , ... This month, Cognosante will ... FL. The company will showcase both expanded and emerging offerings that align with the ... is designed to be comprehensive, timely, and engaging. From Interoperability and ...
(Date:2/28/2020)... ... February 26, 2020 , ... Designed primarily for laboratory and ... dedicated controller, thus simplifying setup, streamlining integration, and optimizing workflow. Capable of recording ... Fastec Imaging’s new HS Series cameras to be released. The HS Series includes ...
Breaking Biology Technology:
Cached News: