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:


(Date:3/7/2017)... , March 7, 2017   HireVue , the ... global companies identify the best talent, faster, today announced ... Sales Officer (CSO) and Diana Kucer as ... out a seasoned executive team poised to drive continued growth ... on a year of record bookings in 2017. ...
(Date:3/2/2017)... , March 2, 2017 Summary ... understand Perrigo and its partnering interests and activities since 2010. ... Read ... Deals and Alliance since 2010 report provides an in-depth insight ... life sciences companies. On demand company reports are ...
(Date:3/2/2017)... Who risk to be deprived of its ... report: https://www.reportbuyer.com/product/4313699/ WILL APPLE AND SAMSUNG ... Fingerprint sensors using capacitive technology represent a fast growing ... forecasts an increase of 360% of the number of ... fingerprint sensor market between 2014 and 2017 (source : ...
Breaking Biology News(10 mins):
(Date:3/29/2017)... N.J. and PETACH TIKVAH, ...  BrainStorm Cell Therapeutics Inc. (NASDAQ: BCLI), ... technologies for neurodegenerative diseases, announced financial results ... "2016 was a highly successful ... important achievements and significant progress made on ...
(Date:3/29/2017)... USA (PRWEB) , ... March 29, 2017 , ... ComplianceOnline, ... regulatory subjects has announced its 3rd Annual Medical Device Summit 2017 venue and speaker ... Omni Parker House Hotel, in Boston, MA. , The Omni Parker House Hotel, which ...
(Date:3/29/2017)... , March 29, 2017  Halozyme Therapeutics, Inc. ... and drug-delivery therapies, today announced that an Oncologic ... Drug Administration voted 11 to 0 that the ... injection was favorable for patients in the proposed ... and chronic lymphocytic leukemia. The FDA action date ...
(Date:3/29/2017)... ... March 29, 2017 , ... ACEA Biosciences, a privately ... quarterly travel award to noteworthy scientists who will be presenting research using ACEA ... round of awards are being given to two postdoctoral fellows studying pathogen capture ...
Breaking Biology Technology:
Cached News: