HOME >> BIOLOGY >> NEWS
Scientists must offer solutions for conserving tropical forests in a rapidly changing world

As human populations and their impacts on the world increase, tropical forests are changing in many different ways. Forests are being cleared, burned, logged, fragmented, and overhunted and an unprecedented pace, and they are also being altered in insidious ways by global climatic and atmospheric changes. "The evidence for global effects suggests that a massive reorganization of the structure and dynamics of tropical forests is already underway" writes ecologist S. Joseph Wright, "The tropics support over half of all species and over two-thirds of all people. Without an appropriate commitment from the scientific community, the two are unlikely to continue to coexist," concludes the scientist.

Tropical forest landscapes are changing rapidly in the eyes of scientists working on tropical monitoring plots around the globe, while human populations and their economic activities grow. Old-growth forests become agricultural lands, degraded land is abandoned, urbanization intensifies, and the populations of tropical countries will increase by two billion over the next 25 years.

But what is happening in protected areas? Globally, 18% of all tropical and subtropical moist forest and 9% of all tropical dry forests are nominally protected by governments. Increasingly, even these areas seem to be bearing the indelible marks of human activity.

On Barro Colorado Island (BCI) administered by the Smithsonian Tropical Research Institute (STRI) in the Republic of Panama, the old-growth forest has escaped fire and agriculture for at least 1500 years. STRIs Center for Tropical Forest Science (CTFS) has repeatedly censused all steams one centimeter of diameter or more at 1.3 m height in a 50-hectare plot every five years since 1985. Wright notes that the aboveground biomass on BCI was almost constant since the first census. But lianas increased substantially (from 9% to 13% of all leaf biomass) between 1986 and 2002.

In another protected area, the Kibale
'"/>

Contact: S. Joseph Wright
wrightj@si.edu
507-212-8000
Smithsonian Tropical Research Institute
2-Sep-2005


Page: 1 2

Related biology news :

1. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
2. Scientists prove that disputed Korean stem cell line comes from an unfertilized egg and not cloning
3. Scientists move closer to bio-engineered bladders
4. Scientists find stem cell switch
5. Scientists discover new way to study nanostructures
6. Scientists a step closer to understanding how anaesthetics work in the brain
7. Scientists to make news at Computational Biology Conference
8. Accident-prone? Scientists link brain function to knee injuries
9. Scientists take next step in understanding potential target for ovarian cancer treatment
10. Scientists find brown fat master switch
11. Scientists identify 2 distinct Parkinsons networks

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/10/2019)... British Columbia (PRWEB) , ... October 09, 2019 ... ... Sigma Anti-Bonding Calcium Symposium (ISACS) 2019 at Executive Plaza Hotel in Vancouver, Canada ... and share the knowledge of the various measures to develop healthy bone and ...
(Date:10/8/2019)... ... October 07, 2019 , ... Imaging data sets are generated ... optical projection tomography, optical coherence tomography, echocardiogram, light sheet microscopy, MRI and X-ray ... inhouse, a lot of research groups struggle with transforming these large and sometimes ...
(Date:10/3/2019)... ... October 01, 2019 , ... The CHEM+POUR Bag ... medias and to be a more environmentally sustainable evolution to plastic or glass ... experience and feedback from the original version we launched in September 2015,” said ...
Breaking Biology News(10 mins):
(Date:9/24/2019)... ... September 24, 2019 , ... Personalized ... training and site qualification for clinical trial sites and physician investigators. The ... potential clinical trial participants. , Clinical trial sites are currently located in San ...
(Date:9/24/2019)... (PRWEB) , ... September 24, 2019 , ... In the ... for research led by faculty at South Dakota School of Mines & Technology ... tiny microbes that attach to surfaces to form a slimy and yet strong layer ...
(Date:9/17/2019)... ... September 17, 2019 , ... Catalent, ... Project and Clinical Supplies Management, Asia Pacific (APAC) will present at the upcoming ... on Sept. 25-26, 2019. , On Thursday, Sept. 26, at 10:10 a.m., Ms. ...
(Date:9/17/2019)... ... September 17, 2019 , ... Geneticure, Inc., a Rochester ... today that the U.S. Patent and Trademark Office (USPTO) and European Patent Office ... class recommendations for hypertension treatment. , The patent applies to Geneticure’s first ...
Breaking Biology Technology:
Cached News: