Navigation Links
Tropical forests affected by habitat fragmentation store less biomass and carbon dioxide
Date:12/9/2009

This release is available in German and Portuguese.

So Paulo/ Leipzig. Deforestation in tropical rain forests could have an even greater impact on climate change than has previously been thought. The combined biomass of a large number of small forest fragments left over after habitat fragmentation can be up to 40 per cent less than in a continuous natural forest of the same overall size. This is the conclusion reached by German and Brazilian researchers who used a simulation model on data from the Atlantic Forest, a coastal rain forest in the state of So Paulo, Brazil, around 88 per cent of which has already been cleared. The remaining forest fragments are smaller, so the ratio between area and edge is less favourable. The reason for the reduction in biomass is the higher mortality rate of trees at the edges of forest fragments, according to the results published by researchers from the Helmholtz Centre for Environmental Research and the University of So Paulo in Ecological Modelling. This reduces the number of big old trees, which contain a disproportionately high amount of biomass.

Altered wind conditions and light climate lead to a general change in the microclimate at the forest edges. Big old trees are particularly vulnerable to these factors. With the help of FORMIND, a forest simulation software developed at the UFZ, the researchers modelled different sizes of forest patches left over after landscape fragmentation. The smaller a patch of forest is, the worse is the ratio between edge and area. Simulation results suggest that a natural tropical forest of our study area contained approximately 250 tonnes of aboveground biomass per hectare, a forest fragment measuring 100 hectares has around 228 tonnes of biomass per hectare, while a patch of rain forest m
'/>"/>

Contact: Tilo Arnhold
presse@ufz.de
49-341-235-1635
Helmholtz Association of German Research Centres
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Plant fossils give first real picture of earliest Neotropical rainforests
2. Global warming threatens tropical species, the ecosystem and its by-products
3. Coralline algae in the Mediterranean lost their tropical element between 5 and 7 million years ago
4. New guide to tropical seedlings: Essential to climate change research
5. Australias climate: Drought and flooding in annual rings of tropical trees
6. Live-in domestics: Mites as maids in tropical rainforest sweat bee nests
7. Biological control of tropical weeds using arthropods
8. AAAS Symposium: Emerging threats to tropical, temperate and ocean ecosystems
9. Scientists use lasers to measure changes to tropical forests
10. Lifecycles of tropical cyclones predicted in global computer model
11. Princeton-led team finds secret ingredient for the health of tropical rainforests
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tropical forests affected by habitat fragmentation store less biomass and carbon dioxide
(Date:7/31/2014)... marine noise can affect animal movement and communication, with ... and Exeter and the cole Pratique des Hautes tudes ... stops embryonic development and increases larval mortality in sea ... Stylocheilus striatus used in this study) usually hatch ... on toxic alga but this study, conducted in a ...
(Date:7/30/2014)... at New York University is paving the way ... in civilians and military troops exposed to poisonous ... , An article in the current issue of ... in detoxifying organophosphates, which are compounds commonly used ... was developed by NYU School of Engineering Associate ...
(Date:7/30/2014)... in Lewis Carroll,s Through the Looking Glass, collaborators ... of Singapore improved a 35-year-old ecology model to ... millions of years. , The new model, called ... "Red Queen Effect," an evolutionary hypothesis introduced by ... that organisms must constantly increase their fitness (or ...
Breaking Biology News(10 mins):Boat noise impacts development and survival of sea hares 2Engineering a protein to prevent brain damage from toxic agents 2Classic Lewis Carroll character inspires new ecological model 2Classic Lewis Carroll character inspires new ecological model 3
... likely impact of ocean acidification on shellfish and other marine ... is published this week (date) in the journal Global ... because some of the increased carbon dioxide humans are adding ... water to produce an acid. The results suggest that ...
... by the National Science Foundation (NSF) found state agency ... fiscal year 2009, a 7 percent increase over the ... details nationwide and state-by-state totals of R&D activities performed ... first time survey data are available by individual state ...
... release is available in German . Tomato ... with a genetic defect that made the fruits mature very slowly, ... were delighted as it gave them more time to transport the ... it would be sold. At the stores, the tomatoes could then ...
Cached Biology News:New study helps predict impact of ocean acidification on shellfish 2New study helps predict impact of ocean acidification on shellfish 3Ethylene of no effect -- why peppers do not mature after picking 2
(Date:7/30/2014)... W. R. Grace & Co. ... REVELERIS® Prep purification system , a dual-mode ... other researchers to perform both flash and preparative ... With the REVELERIS® Prep purification system, researchers can ... with a simple touch of the screen, giving ...
(Date:7/30/2014)... July 30, 2014 While administrative ... health services research for a relatively long period ... interest regarding the use of these ‘big data’ ... , By combining today’s powerful computer technology with ... era, ‘big data’ holds significant promise for identifying ...
(Date:7/30/2014)... STONY BROOK, NY (PRWEB) July 30, 2014 ... (OTCQB: APDN), (Twitter: @APDN), a biotechnology firm that provides ... Dr. Michael E. Hogan, Ph.D. Vice President of Life ... in mid-September. , Dr. Hogan will lead ... to form business relationships with biotech and healthcare customers, ...
(Date:7/30/2014)... 30, 2014  Dyadic International, Inc. ("Dyadic") (OTCQX: ... and proprietary technologies are used to discover, develop, ... the bioenergy, bio-based chemical, biopharmaceutical and industrial enzyme ... Dubinski as Vice President and Chief Financial Officer. ... and information technology operations for Dyadic and will ...
Breaking Biology Technology:Grace Launches New REVELERIS® Prep Purification System 2Leveraging ‘Big Data’ - Methodological Considerations in Health Services Research, New Webinar Hosted by Xtalks 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 3Thomas Dubinski joins Dyadic as Chief Financial Officer 2Thomas Dubinski joins Dyadic as Chief Financial Officer 3Thomas Dubinski joins Dyadic as Chief Financial Officer 4
... 1, 2011 Life Technologies Corporation (Nasdaq: ... webcasting management presentations to investors as part of the ... which is being held at the company,s headquarters in ...  Mark Stevenson, Life Technologies, President and Chief Operating Officer, ...
... NEW YORK, March 1, 2011 NeoStem, Inc. (NYSE Amex: ... in the U.S. and China, announced today that Dr. Robert ... Therapy ("PCT"), a wholly-owned subsidiary of NeoStem, Inc., has been ... 6th Annual New York Stem Cell Summit. The Summit will ...
... BioNeutral Group, Inc. (OTC Bulletin Board: ... announced that its wholly-owned subsidiary, BioNeutral Services, Inc., has ... (KEDFA) to receive up to $280,000 in development incentives ... February 24 meeting, six companies, including BioNeutral Services, Inc., ...
Cached Biology Technology:Life Technologies to Webcast Investor Presentation as Part of the UBS West Coast Life Sciences & Diagnostics Bus Trip 2Progenitor Cell Therapy to Present at 6th Annual New York Stem Cell Summit on Tuesday, March 1 2Progenitor Cell Therapy to Present at 6th Annual New York Stem Cell Summit on Tuesday, March 1 3Progenitor Cell Therapy to Present at 6th Annual New York Stem Cell Summit on Tuesday, March 1 4BioNeutral Group to Receive Economic Development Incentives 2BioNeutral Group to Receive Economic Development Incentives 3
...
... suitable for sizing linear double-stranded DNA from 9 ... 13 bands consist of 8.3- to 48.5-kb fragments ... (cIind1ts857 Sam7). Ethidium bromide staining causes the four ... bp 12220 bp and 19399 bp) to show ...
... ZMD.358. Immunogen: Synthetic peptide ... of human mouse and rat ... human and mouse LRP5 proteins. ... controls: mouse LRP5-pSEC-tag-transfected 293T cells ...
MarrowMAX Bone Marrow Medium...
Biology Products: