Navigation Links
Madagascan tropical forests return thanks to better management and well-defined ownership

A study published in the May 2nd issue of the online, open-access journal PLoS ONE, shows that although loss of tropical dry forests occurs in southern Madagascar, there are also large areas of forests regenerating. The return of forest cover was found to be substantial in the study area, with an overall net increase of 4 % during the period 1993-2000. These dry forests have the highest level of plant endemism (species found only in a particular region) in all of Madagascar and are listed as one of the 200 most important "ecoregions" of the world. The study also shows that the relationship between human population density and deforestation is much more complex than previously thought.

"We were surprised to find the highest deforestation rates in an area with low human population density and large distance to markets, while the area with highest population density had stable forest cover," says Thomas Elmqvist, Professor at the Stockholm Resilience Centre, Sweden.

The results, based on analyses of satellite images and vegetation on the ground, surprised the team of scientists from Sweden and the University of Antananarivo in Madagascar. As a result, they went further and also made a social inventory based on interviews with local forest officials and villagers. This inventory revealed that loss of forest occurred mainly in areas with insecure property rights, while areas with well-defined local norms, rules and property rights for forest management showed either regenerating or stable forest cover.

"Regeneration of tropical forests has so far mostly been studied by ecologists trying to understand factors like seed dispersal and soil quality, our study clearly shows the importance of an increased understanding also of the social context behind forest regeneration," says Elmqvist. The loss of tropical forests is a concern worldwide since these forests harbor more than 50 % of the terrestrial species richness in the world and have a large imp ortance in global climate regulation. Estimates of tropical forest loss are still uncertain and a 50 % margin of error appears possible. However, scientists know even less about regeneration of tropical forests.

"We now know a fair amount about the human social context in which tropical forest loss is embedded, but very little is known about the role of social institutions in influencing regeneration of tropical forests," says Maria Tengö from Stockholm university and one of the authors behind the new study.

The new study points to the large capacity of dry tropical forests to spontaneously regenerate if existing local rules and norms (including well-defined property rights) mitigate other drivers of deforestation and alternative land-use.


'"/>

Source:Public Library of Science


Related biology news :

1. An (ecological) origin of species for tropical reef fish
2. Birds and bats sow tropical seeds
3. Scientists must offer solutions for conserving tropical forests in a rapidly changing world
4. Diverse tropical forests defy metabolic ecology models
5. Agriculture and tropical conservation: rethinking old ideas
6. New understanding of parasite cell structures may provide treatments for serious tropical diseases
7. Public Library of Science to launch new, open access journal on neglected tropical diseases
8. The subtleties of tropical forest demise
9. Microfossils unravel climate history of tropical Africa
10. Scientists: As rainfall changes, tropical plants may acclimate
11. Live fast, die young true for forests too
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/22/2016)... 22, 2016 ... of the  "Global Behavioral Biometric Market ... --> http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ) has announced ... Biometric Market 2016-2020"  report to their ... Markets ( http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ) has announced the ...
(Date:1/20/2016)... , Jan. 20, 2016   MedNet Solutions , ... entire spectrum of clinical research, is pleased to announce ... significant achievements are the result of the company,s laser ... iMedNet eClinical , it,s comprehensive, easy-to-use and highly ... --> Key MedNet growth achievements in 2015 ...
(Date:1/13/2016)... New York , January 13, 2016 ... Market Research has published a new market report titled ... Growth, Trends, and Forecast, 2015 - 2023. According to the ... in 2014 and is anticipated to reach US$1,625.8 mn ... 2015 to 2023. In terms of volume, the biometric ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... has an active R&D program for the development ... the Group has a unique research and development center in ... developing Bio Control products. Stockton has ... and regulatory guidelines, and is active in more than 35 ... Stockton,s flagship product Timorex Gold ® ...
(Date:2/6/2016)... ... February 06, 2016 , ... Contact:, Abby Mitchell, Communications Manager, ... Education Sponsors Teacher Training Program , Bite of Science Dinner Event to Strengthen ... Excellence in Education (CEE) will sponsor a Bite of Science professional enrichment session, ...
(Date:2/5/2016)... 2016 Amarantus BioScience Holdings, Inc. ... on developing products for Regenerative Medicine, Neurology and Orphan ... Designation (RPDD) from the US Food and Drug Administration ... was previously granted orphan drug designation (ODD) by the ... BioScience Holdings, Inc. (OTCQB: AMBS), a ...
(Date:2/4/2016)... RICHMOND, Calif. , Feb. 4, 2016  Sangamo ... therapeutic genome editing, announced today that Edward Lanphier ... an update on the progress of Sangamo,s ZFP Therapeutic ... company,s business strategy at 2:40 pm ET on Thursday, ... Annual Global Healthcare Conference. The conference is being ...
Breaking Biology Technology: