Navigation Links
Ecologists discover forests are growing faster
Date:2/1/2010

rees in stands that range from 5 to 225 years old. This allowed Parker and McMahon to verify that there was accelerated growth in forest stands young and old. More than 90% of the stands grew two to four times faster than predicted from the baseline chronosequence.

By grouping the forest stands by age, McMahon and Parker were also able to determine that the faster growth is a recent phenomenon. If the forest stands had been growing this quickly their entire lives, they would be much larger than they are.

Parker estimates that among himself, his colleague Dawn Miller and a cadre of citizen scientists, they have taken a quarter of a million measurements over the years. Parker began his tree census work Sept. 8, 1987his first day on the job. He measures all trees that are 2 centimeters or more in diameter. He also identifies the species, marks the tree's coordinates and notes if it is dead or alive.

By knowing the species and diameter, McMahon is able to calculate the biomass of a tree. He specializes in the data-analysis side of forest ecology. "Walking in the woods helps, but so does looking at the numbers," said McMahon. He analyzed Parker's tree censuses but was hungry for more data.

It was not enough to document the faster growth rate; Parker and McMahon wanted to know why it might be happening. "We made a list of reasons these forests could be growing faster and then ruled half of them out," said Parker. The ones that remained included increased temperature, a longer growing season and increased levels of atmospheric CO2.

During the past 22 years CO2 levels at SERC have risen 12%, the mean temperature has increased by nearly three-tenths of a degree and the growing season has lengthened by 7.8 days. The trees now have more CO2 and an extra week to put on weight. Parker and McMahon suggest that a combination of these three factors has caused the forest's accelerated biomass gain.

Ecosystem responses are on
'/>"/>

Contact: Tina Tennessen
tennessent@si.edu
443-482-2325
Smithsonian
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Ecologists discover city is uber-forest for big owls
2. Ecologists, material scientists pursue genetics of diatoms elegant, etched casing
3. Ecologists tease out private lives of plants and their pollinators
4. Biofuels and biodiversity dont mix, ecologists warn
5. Studies of small water fleas help ecologists understand population dynamics
6. Ecologists say metabolism accounts for why natural selection favors only some species
7. Ecologists use oceanographic data to predict future climate change
8. Ecologists report quantifiable measures of natures services to humans
9. Ecologists question effects of climate change on infectious diseases
10. The value of variation: Ecologists consider the causes and consequences
11. Ecologists sound out new solution for monitoring cryptic species
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/23/2015)...   Valencell, a leader in performance ... recent study that illustrates its PerformTek biometric technology ... In a study conducted at Valencell,s Biometric Lab, ... Apple Watch against a chest strap – the ... The study demonstrated that Valencell,s biometric technology delivers ...
(Date:6/18/2015)... 2015 This report analyzes the worldwide markets ... Product Segments, which includes Immunoassay Analyzers and Reagents: Enzyme ... Immunoassay Systems, and Nephelometric Immunoassay Systems. The report provides ... , Japan , ... Latin America , and Rest of World. ...
(Date:6/17/2015)... HILDEN , Deutschland und GERMANTOWN, Maryland ... Investigator ®   Produktlinie mit ... QIAGEN N.V. (NASDAQ: QGEN ; Frankfurt Prime ... neue STR-Testkits der Produktlinie Investigator ... DNA-Spuren in den Markt eingeführt. Die neuen Kits zur ...
Breaking Biology News(10 mins):Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 3Global Immunoassay Systems Market 2Global Immunoassay Systems Market 3Global Immunoassay Systems Market 4Global Immunoassay Systems Market 5Global Immunoassay Systems Market 6Global Immunoassay Systems Market 7Global Immunoassay Systems Market 8Global Immunoassay Systems Market 9Global Immunoassay Systems Market 10Global Immunoassay Systems Market 11Global Immunoassay Systems Market 12Global Immunoassay Systems Market 13Global Immunoassay Systems Market 14Global Immunoassay Systems Market 15Global Immunoassay Systems Market 16Global Immunoassay Systems Market 17Global Immunoassay Systems Market 18Global Immunoassay Systems Market 19Global Immunoassay Systems Market 20Global Immunoassay Systems Market 21Global Immunoassay Systems Market 22Global Immunoassay Systems Market 23Global Immunoassay Systems Market 24Global Immunoassay Systems Market 25Global Immunoassay Systems Market 26Global Immunoassay Systems Market 27Global Immunoassay Systems Market 28Global Immunoassay Systems Market 29QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 2QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 3QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 4QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 5QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 6
... team of UCLA-led researchers has identified a protein with ... a weapon against deadly human pathogenic viruses such as ... "priority pathogens" for national biosecurity purposes by the National ... In a study published in the January issue of ...
... An international research team coordinated at the IRCM in ... Led by Dr. Tarik Mry, the IRCM,s President and ... the disease,s "Achilles, heel" and could be targeted to ... effects of current treatments such as chemotherapy and radiation ...
... (ICFO), in collaboration with the CSIC and Macquarie University ... the MRI but with a much higher resolution and ... In an article published in Nature Nanotech , ... Quidant explains how this was accomplished using artificial atoms, ...
Cached Biology News:Newly identified natural protein blocks HIV, other deadly viruses 2Researchers discover 'Achilles' heel' for lymphoid leukemia 2Artificial atoms allow for magnetic resonance on individual cells 2
(Date:7/2/2015)... ... , ... Cuvettes have been used in countless labs for decades. In the past, people ... As expected, this was a daunting and tiring process looking at endless data tables ... able to navigate the complex catalog structure. , Now thanks to FireflySci, scientists are throwing ...
(Date:7/2/2015)... ... July 02, 2015 , ... In’Tech Medical ... instruments in Orthopedics, announced today the acquisition of Turner Medical, Inc ., ... of surgical instruments to the Spine Industry. The acquisition of Turner Medical ideally ...
(Date:7/1/2015)... India , July 1, 2015  Strand Life ... generation sequencing technology to empower cancer care, today announced ... chief executive officer. In his expanded role as now ... strategy, business expansion and worldwide operations effective immediately.  Dr. ... chairman and CEO since its founding in 2000, will ...
(Date:7/1/2015)... , July 1, 2015 InferMed ... technology will ... evidence-based clinical s olutions suite   ... and medical information products and services, announced today the acquisition ... decision support (CDS) technology company. InferMed,s Arezzo technology ...
Breaking Biology Technology:New Cuvette E-Commerce Website Launched by FireflySci 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 3Strand Life Sciences Names Scott A. Storrer CEO as Company Continues Global Expansion with Focus on Precision Medicine Product 2Strand Life Sciences Names Scott A. Storrer CEO as Company Continues Global Expansion with Focus on Precision Medicine Product 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 2Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 4
... for years, I have to admit that Ive never been there. ... at Lever Bros. (now Unilever ) in New York City ... a young, Indian man with a doctorate and other degrees from ... energetic, he had just arrived in New York without any contacts. ...
... Point will receive the second patent in the universitys ... that manages intellectual property apart from UW-Madison, has received ... a patent will soon be issued for a UW-Stevens ... associate professor of soils in UWSP s College ...
... a privately held software developer that creates secure ... Tokyo-based C4 Technologies a public security software developer ... Crypto software in Japan and Taiwan. C4 ... security products as well as resell MOVEit Crypto ...
Cached Biology Technology:Midwest Biotech: Watch India, the Next Biotech Frontier 2Midwest Biotech: Watch India, the Next Biotech Frontier 3Midwest Biotech: Watch India, the Next Biotech Frontier 4Midwest Biotech: Watch India, the Next Biotech Frontier 5UW-Stevens Point Professor Receives Patent Approval For New Technology 2
... The Biomek FX provides ... analysis applications. With 96-, ... pipetting heads in either single ... Biomek FX offers maximum speed ...
... The mini incubation trays ... used to screen antigens that ... membrane. Each tray has eight ... channels that accommodate strips cut ...
These Costar 96-well, flat-bottom polystyrene EIA plates are used for EIAs, ELISAs, and other protein binding assays. Supplied as box of 100 (20 packages; 5 plates per package)....
... The Chemicon Detergent-OUT Kit is a simple ... protein solutions. Removes detergents without significant ... the protein solution on the Detergent-OUT Spin ... Micro columns are suitable for removing detergent ...
Biology Products: