Navigation Links
Forest model predicts canopy competition
Date:2/20/2014

PROVIDENCE, R.I. [Brown University] Out of an effort to account for what seemed in airborne images to be unusually large tree growth in a Hawaiian forest, scientists at Brown University and the Carnegie Institution for Science have developed a new mathematical model that predicts how trees compete for space in the canopy.

What their model revealed for this particular forest of hardy native Metrosideros polymorpha trees on the windward slope of Manua Kea, is that an incumbent tree limb greening up a given square meter would still dominate its position two years later a forbidding 97.9 percent of the time. The model described online in the journal Ecology Letters could help generate similar predictions for other forests, too.

Why track forest growth using remote sensing, pixel by pixel? Some ecologists could use that information to learn how much one species is displacing another over a wide area or how quickly gaps in the canopy are filled in. Others could see how well a forest is growing overall. Tracking the height of a forest's canopy reveals how tall the trees are and therefore how much carbon they are keeping out of the atmosphere that is, as long as scientists know how to interpret the measurements of forest growth.

James Kellner, assistant professor of ecology and evolutionary biology at Brown University, the paper's lead and corresponding author, noticed what seemed like implausibly large canopy growth in LIDAR images collected by the Carnegie Airborne Observatory over 43 hectares on the windward flank of Manua Kea. In the vast majority of pixels (each representing about a square meter) the forest growth looked normal, but in some places the height change between 2007 and 2009 seemed impossible: sometimes 10 or 15 meters.

The data were correct, he soon confirmed, but the jumps in height signaled something other than vertical growth. They signaled places where one tree had managed to overtop another or where th
'/>"/>

Contact: David Orenstein
david_orenstein@brown.edu
401-863-1862
Brown University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. New data shows continued decline of African forest elephants
2. Biodiversity in production forests can be improved without large costs
3. Forest emissions, wildfires explain why ancient Earth was so hot
4. NYBG launches Amazon Forest Program to help conserve Earths largest intact forest
5. Forests in Central America paying the price of drug trafficking shift
6. Forests as Capital: International Society of Tropical Foresters Annual Conference in New Haven
7. Effective control of invasive weeds can help attempts at reforestation in Panama
8. Rainforests in Far East shaped by humans for the last 11,000 years
9. Increase in hemlock forest offsetting effect of invasive hemlock woolly adelgid for now
10. Salamanders help predict health of forest ecosystems and inform forest management
11. World Congress on Agroforestry 2014
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Forest model predicts canopy competition
(Date:7/11/2014)... international team of researchers, including scientists from the Max ... a reported a major step in understanding photosynthesis, the ... maintains the oxygen in its atmosphere and which is ... earth. , The researchers report the first direct ... namely the step in which a specific protein complex, ...
(Date:7/11/2014)... 11, 2014 The increased risk of kidney injury ... resuscitation fluids reflects the mass of HES molecules, according ... official journal of the International Anesthesia Research Society (IARS). ... harmful effect of HES on cultured human renal proximal ... Christian Wunder and colleagues of University Hospital Wrzburg, Austria. ...
(Date:7/11/2014)... under the normal circumstances, astrocytes participate in ... environment, and exhibit therapeutic and repairing effects ... studies have found that nerve cells differentiated ... have reduced viability, which produces influences on ... Kailuan General Hospital, Hebei United University, China ...
Breaking Biology News(10 mins):A first direct glimpse of photosynthesis in action 2In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2
... Soil is the most species-rich microbial ecosystem ... certain species, give them access to the root and so ... then benefit in a variety of ways. To achieve this, ... of these bacteria are friends and which foes. Researchers from ...
... reported details of how certain drugs can precisely target ... replication. Since all strains of the virus require the ... drugs that can effectively treat new strains of the ... When new strains of influenza emerge, it can ...
... Results from a study conducted at Georgia State University ... intestines and the immune system, kicked off by another type ... disease. The study suggests that the "fight" continues after ... to Andrew Gewirtz, professor of biology at the GSU Center ...
Cached Biology News:Bacterial community inside the plant root 2Bacterial community inside the plant root 3Target for potent first-strike influenza drugs identified 2Target for potent first-strike influenza drugs identified 3Target for potent first-strike influenza drugs identified 4
(Date:7/11/2014)... July 11, 2014 Research and Markets ... Technology Market - Global Industry Analysis, Size, Share, Growth, ... offering. http://photos.prnewswire.com/prnh/20130307/600769 ... acids (either DNA or RNA) into cells. This technology ... cancer cells and protein metabolism by affecting the nuclear ...
(Date:7/11/2014)... , July 11, 2014  Researchers have ... three-dimensional images. The new technology, called Virtual Finger, ... small structures like neurons and synapses using the ... unique technology makes 3D imaging studies orders of ... at an unprecedented level across many areas of ...
(Date:7/10/2014)... Deep Knowledge Ventures last week ... ‘Commercialising Longevity Research’ and welcomed a host of ... Bioscience Innovation Center for the event, organised by ... Ltd. The meeting highlighted the need for both ... age-related disease, as well as the crucial role ...
(Date:7/10/2014)... Robert Harman, DVM, Founder and CEO of Vet-Stem, Inc., ... the relaunch of his highly informative blog, now named Stem ... What are Stem Cells ?” Dr. Harman’s purpose for ... the basics of stem cell therapy so that pet owners ... treatment when considering regenerative medicine. , A veterinarian by trade, ...
Breaking Biology Technology:International Transfection Technology Market - Industry Analysis, Size, Share, Growth, Trends and Forecast to 2019 2Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 2Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3
... CLEVELAND, Jan. 28, 2011 Arteriocyte®, a leading ... Ohio and Hopkinton, Massachusetts that develops proprietary stem ... approval from the Food and Drug Administration (FDA) ... its Magellan MAR01™ technology in the treatment of ...
... Reportlinker.com announces that a new ... its catalogue: ... Probes and Biochips -- New Product ... for Instrument and Reagent Suppliers ...
... Calif. and HOPKINTON, Mass., Jan. 27, 2011 ... (Nasdaq: CALP ) today announced a ... for next generation sequencing sample preparation on Caliper,s ... researchers to leverage NuGEN,s Ovation® and Encore™ reagent ...
Cached Biology Technology:Arteriocyte Receives FDA Approval to Move Forward with Critical Limb Ischemia Trial 2Arteriocyte Receives FDA Approval to Move Forward with Critical Limb Ischemia Trial 3Reportlinker Adds The 2011 Molecular Diagnostics Market: DNA Probes and Biochips -- New Product Development Opportunities and Business Expansion Strategies for Instrument and Reagent Suppliers 2NuGEN and Caliper Partner to Eliminate Next-Gen Sequencing Sample Preparation Bottlenecks 2NuGEN and Caliper Partner to Eliminate Next-Gen Sequencing Sample Preparation Bottlenecks 3