HOME >> BIOLOGY >> NEWS
Diverse tropical forests defy metabolic ecology models

As global change accelerates, quantifying the role of forests in the carbon cycle becomes ever more urgent. Modelers seek simple predictors of forest biomass and carbon flux. Over the last decade, the theory of metabolic ecology generated testable explanations, derived from physical and biochemical principles, for a wide range of ecological patterns. However, in two Ecology Letters articles, Helene Muller-Landau and colleagues show that tree growth, mortality and abundance in fourteen tropical forests deviate substantially from metabolic ecology predictions, especially for large trees. Instead, observed variation within and among forests supports alternative models presented by the CTFS team.

Are tropical forest structure and dynamics too complex for universal explanations?

"When you walk through different tropical forests, or graph data from different forests, there are certain features that, at first glance, look similar everywhere '" the presence of some very large trees, or the general shape of the tree size distribution curve," explains first author, Helene Muller-Landau from the University of Minnesota. "So you start to think that there might be some general explanations. But the closer you look, the more differences you find '" differences that can'TMt be captured or even decently approximated by any single picture or formula."

Tropical forests give modelers a run for their money. Trees range from spindly understory shrubs to enormous buttress-rooted rainforest giants festooned with vines and peppered with orchids, ferns and bromeliads. Tropical trees depend on animals for pollination and seed dispersal and are constantly assaulted by insects, fungi, maelstrom and machete. Furthermore, soils, rainfall, the frequencies of hurricanes and fires, and assemblages of animals and plants in tropical forests all vary widely from one forest to another.

Prospecting in a gold mine of data

Twenty-five
'"/>

Contact: Helene Muller-Landau
hmuller@umn.edu
20-278-620-948-216
Smithsonian Tropical Research Institute
21-Apr-2006


Page: 1 2 3 4

Related biology news :

1. Diverse genetic abnormalities lead to NF-κB activation in multiple myeloma
2. Diverse sea bugs revealed on landmark Atlantic cruise to census zooplankton
3. New study warns limited carbon market puts 20 percent of tropical forest at risk
4. Satellite survey links tropical park fires with poverty and corruption
5. Northern forests less effective than tropical forests in reducing global warming
6. Research finds evidence tropical cyclones have climate-control role
7. Brazil demonstrating that reducing tropical deforestation is key win-win global warming solution
8. Drought sensitivity shapes species distribution patterns in tropical forests
9. Scientists: As rainfall changes, tropical plants may acclimate
10. Drought limits tropical plant distributions, scientists at the Smithsonian report
11. Madagascan tropical forests return thanks to better management and well-defined ownership

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Diverse tropical forests defy metabolic ecology models

(Date:10/25/2014)...   MedNet Solutions , a global life sciences ... pleased to announce the 2014 iMedNet User ... held in Bloomington, Minnesota on ... attendance and promises to be informative, productive and enjoyable ... the meeting is iMedNet™ EDC , ...
(Date:10/25/2014)... , Oct. 22, 2014 This report ... a relatively new space in heavy pursuit of research ... unique to miRNAs compared to other RNA components. miRNA,s ... it a novel candidate for use as a biomarker ... of miRNA-based microarrays and diagnostics for the advancement in ...
(Date:10/25/2014)... -- A recent report, "Genetic Testing Market Outlook 2018", ... genetic testing market. A comprehensive introduction of gene-based tests, ... report. On account of our analysis of the past ... challenges; forecast for genetic testing has been drawn, according ... a CAGR of around 9% during 2013-2018. Our ...
Breaking Biology News(10 mins):MedNet Solutions To Host Third Annual iMedNet User Group Meeting 2MicroRNA: An Insight to miRNA-based microarrays, diagnostics and therapeutics Overview, Cambridge Healthtech Advisors 2Genetic Testing Market Outlook 2018 2
(Date:10/25/2014)... NEW YORK , Oct. 24, ... formerly Access Pharmaceuticals, Inc. (ACCP), a biopharmaceutical company ... has implemented a 1-for-50 reverse split of its ... on Friday, October 24, 2014. PlasmaTech,s common stock ... CUSIP number 72754H109 and temporary ticker symbol "ACCPD". ...
(Date:10/25/2014)... 24, 2014 ... has announced the addition of the  "The ... Other 2-D Nanomaterials "  report to their ... ,CNTs and graphene are the strongest, lightest ... with a performance-per-weight greater than any other ...
(Date:10/22/2014)... The Americas Inorganic Refrigerants Market ... in Americas with analysis and forecast of revenue. ... Inorganic Refrigerants Market report, to get an idea ... a glimpse of the segmentation in the Americas ... tables and figures. , http://www.micromarketmonitor.com/market/americas-inorganic-refrigerants-4191654241.html ...
(Date:10/22/2014)... NJ (PRWEB) October 22, 2014 ... and services – has been working with a team ... and New Haven Farms Community Farming Collaborative to provide ... ePRO solution. The study, which started in May, ... program that provides participants weekly exposure to and participation ...
Breaking Biology Technology:PlasmaTech Biopharmaceuticals, Inc. Announces Reverse Stock Split, Ticker Change and Launches New Corporate Website 2The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 2The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 3The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 4The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 2The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 3myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3
Cached News: