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:9/29/2014)... Food and Brand Lab pilot study, published in ... National School Lunch Program (NSLP) by 9% and overall ... Move to Schools (CMTS), an initiative of Michelle Obama,s ... to provide nutrition instruction to students and culinary advice ... event was held in an Upstate New York high ...
(Date:9/29/2014)... Texas at Arlington research team says recently identified radiation ... lab could open doors for homeland security and medical ... the Oct. 1 issue of Optics Letters , ... describe a new method to fabricate transparent nanoscintillators by ... a transparent ceramic is formed. A scintillator refers ...
(Date:9/29/2014)... bad rap, and understandably so. The grain-of-rice-sized insects are ... of acres in the Western U.S. and Canada over ... belief, these pests may not be to blame for ... through the region. Instead, weather and topography play a ... these bark-boring beetles. , New research led by the ...
Breaking Biology News(10 mins):Chefs move to schools can increase school meal participation and vegetable intake among students 2UT Arlington researchers develop new transparent nanoscintillators for radiation detection 2UT Arlington researchers develop new transparent nanoscintillators for radiation detection 3Tree killers, yes, fire starters, no: Mountain pine beetles get a bad rap, study says 2Tree killers, yes, fire starters, no: Mountain pine beetles get a bad rap, study says 3Tree killers, yes, fire starters, no: Mountain pine beetles get a bad rap, study says 4
... from Kent State University and the University of ... species Cycloprosopon dobrogea in eastern Romania. Previously unexamined, ... more than 150 million years ago during the ... crabs helps determine various aspects of biodiversity and ...
... St. Paul, Minn. (October 17, 2007) Deadlines ... reservations are quickly approaching for the 2007 National ... Symposium will be held December 12-14, 2007 at ... The 2007 symposium, organized by The American ...
... imagist and researcher at Harvard University,s Initiative in ... the 2007 Lennart Nilsson Award. Frankel was sited ... art and crystal-clear scientific illustrations both fascinating ... community alike. The Lennart Nilsson Award is ...
Cached Biology News:Deadlines for 2007 National Soybean Rust Symposium fast approaching 2Lennart Nilsson Award 2007 2
(Date:10/1/2014)... 2014 Weighing applications in pharmaceutical ... final product. However, while the pharmaceutical industry is ... as Good Manufacturing Practices (GMP) usually provide only ... manufacturer to interpret these guidelines and assess process ... METTLER TOLEDO experts have created a new white ...
(Date:10/1/2014)... -- Pfanstiehl has announced the launch of cGMP-produced, ... USA under ICH Q7 ... playing a key role in protein glycosylation.  Now, ... media supplementation with mannose can improve overall culture ... Dr. Christopher Wilcox , VP, Business Development ...
(Date:10/1/2014)... The participants committed to not only ... their own time adjusting, tweaking and testing virtual models ... ready for judging. , “I enjoyed being involved as ... “The entries showed a commendable range exploring the ... the print medium and the creativity of the contestants.” ...
(Date:10/1/2014)... September 30, 2014 In response ... tools to address sales, training and consumer engagement ... developed innovative mobile applications to turn their clients’ ... agency’s latest customized mobile app creations, are now ... , In partnership with Toyota, StudioPMG created a ...
Breaking Biology Technology:Comply with Weighing-Related Regulations in Pharma Manufacturing 2Pfanstiehl Launches cGMP-produced Mannose for Cell Culture Media Optimization & Glycoprotein Biosynthesis 2Array Architects Challenges Staff to Create with 3D Printer 2Digital Agency Studio PMG Launches New Case Studies on Website 2
... (NASDAQ: LMNX ) today announced that management ... to be held June 4-7 in New York. ... presentation by Patrick J. Balthrop, president and chief executive ... June 6, 2012.  The presentation will be webcast live and ...
... Inc. (Nasdaq: AUXL ) today announced that executive ... to be held June 4-7, 2012 at the Grand Hyatt ... and President, is scheduled to present an overview of the ... Monday, June 4, 2012. A breakout session will be held ...
... Research into conditions such as multiple sclerosis and ... stem cell research and life sciences facilities opened yesterday ... Royal is to unveil plaques this afternoon at the ... $38 million bio-incubator facility, Nine, in Edinburgh. ...
Cached Biology Technology:Luminex Corporation to Present at Jefferies 2012 Global Healthcare Conference 2Auxilium Pharmaceuticals, Inc. to Present at the Jefferies 2012 Global Healthcare Conference 2Auxilium Pharmaceuticals, Inc. to Present at the Jefferies 2012 Global Healthcare Conference 3Auxilium Pharmaceuticals, Inc. to Present at the Jefferies 2012 Global Healthcare Conference 4Scotland opens stem cell research center and bio-medical incubator 2
... plus software to note when an animal is ... and trigger a penaltyThe Spatial Behavior line is ... video camera, frame grabber, and feature extraction software ... and up to 6 moving animals. Software ...
... Magnetofection technology, SilenceMag is the most ... rapid and easy to use, SilenceMag ... Specifically designed for siRNA delivery, SilenceMag ... low doses of siRNA.,SilenceMag formulation gives ...
Denhardt's Solution is a mixture of blocking agents used in membrane-based hybridization protocols. The solution contains 1% Ficoll (type 400) 1% polyvinylpyrrolidone and 1% bovine serum albumin. Ste...
... system from Molecular Devices provides precise dispensing ... The system handles a variety of plate ... and 1536-welland is the first to handle ... optimized to dispense from four different channels ...
Biology Products: