Search

Your search keyword '"ESSA-Forêt"' showing total 3 results
Start Over Author "ESSA-Forêt" Language english
3 results on '"ESSA-Forêt"'

1. Uplisting of Malagasy precious woods critical for their survival

Author

Charles V. Barber, Porter P. Lowry, Lucienne Wilmé, Patrick O. Waeber, Marion Langrand, Derek Schuurman, John L. Innes, Bruno Ramamonjisoa, Forest Management and Development Group [ETH Zürich] (FORDEV), Institute of Terrestrial Ecosystems [ETH Zürich] (ITES), Department of Environmental Systems Science [ETH Zürich] (D-USYS), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich)-Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich)-Department of Environmental Systems Science [ETH Zürich] (D-USYS), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich)-Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich), ESSA-Forêt, Université d'Antananarivo, International Union for Conservation of Nature (IUCN), World Resources Institute, University of British Columbia (UBC), Missouri Botanical Garden, Missouri Botanical Garden (USA), Muséum national d'Histoire naturelle (MNHN), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Université des Antilles (UA)-Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU), Antananarivo, Institute of Terrestrial Ecosystems (ITES), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)

Subjects
0106 biological sciences, Rosewood stocks, China, Corruption, media_common.quotation_subject, Population, Endangered species, Distribution (economics), [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, 010603 evolutionary biology, 01 natural sciences, Forest regulations, Global issue, Timber trade, Forest governance, Precious timber, education, Ecology, Evolution, Behavior and Systematics, ComputingMilieux_MISCELLANEOUS, Nature and Landscape Conservation, media_common, education.field_of_study, Trafficking, CITES, Agroforestry, business.industry, 010604 marine biology & hydrobiology, 15. Life on land, Rosewood, [SDE.ES]Environmental Sciences/Environmental and Society, Africa, Sustainability, Business, [SDE.BE]Environmental Sciences/Biodiversity and Ecology
Abstract

Illegal timber trade is a global issue; highly prized rosewoods are mainly sourced from Africa and Madagascar. In Madagascar, where corruption and political instability are rampant, forest regulations have been issued during the last 15 years to facilitate illegal rosewood exploitation. The current situation precludes non-detriment findings (under which the exporting State ensures that a proposed action will not be detrimental to the survival of a species) intended to enable sustainable use of standing populations, but the Malagasy government, backed by the World Bank, is promoting the sale of massive stocks of confiscated precious wood. We argue that allowing the sale of these stocks would encourage further illegal harvest. No suitable tools are available to identify, control or monitor standing trees or cut timber, and there are substantial knowledge gaps regarding species limits, population sizes, distribution and abundance. When combined with taxonomic confusion and weak governance, these factors necessitate uplifting all of Madagascar's precious woods to Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). ISSN:0006-3207 ISSN:1873-2917

Published
2019
Full Text
View/download PDF

2. Prédiction of radial and tangential shrinkage by Near-Infrared spectroscopy : an examle for Tectona grandis from Toge and for Liquidambar styraciflua from Madagascar

Author

Chaix, Gilles, Kokutse, Adzo-Dzifa, Ratovomboahangy, Bruno, Guibal, Daniel, Randrianjafy, Honoré, Rakotondraoelina, Hery, Loïc, Brancheriau, Rakotovololonalimanana, Herizo, Gherardi Hein, Paulo Ricardo, Ramananantoandro, Tahiana, Webcirad, Mada, Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Laboratoire de Botanique et Ecologie Végétale, Université de Lomé [Togo], ESSA-Forêt, Université d'Antananarivo, Production et valorisation des bois tropicaux (UPR Bois tropicaux), Fofifa/DRFP, and Antananarivo

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, NIRS, Liquidambar, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Dimensional stability, Teak
Abstract

International audience; Dimensional stability is one of the most important properties of wood used as timber. However, it is very time- consuming to measure this trait. Near-infrared spectroscopy is a tool adapted for prediction of many properties of wood, as chemical contents, basic density, and the time needed for the analysis is highly reduced. The issue here is to check the effectiveness of NIRS tool to build models and to predict the radial and tangential shrinkages of Teak (Togo) and Liquidambar (Madagascar) wood both from plantations. It was possible to predict the dimensional stability by means of NIR spectroscopy: For Teak, the transversal cross- section spectra yielded better NIRS-based models while for Liquidambar, the tangential surface gave the best statistics model. For the two species, the prediction models for tangential shrinkage showed similar results in term of efficiency. After independent validation or cross-validation, respectively for Teak, and for Liquidambar wood, we assume that NIRS can be used to predict radial and tangential shrinkages for screening.

Published
2010

3. A trade-off between conservation, development, and tourism in the vicinity of the Andasibe-Mantadia National Park, Madagascar.

Author

Casse T, Razafintsalama MH, and Milhøj A

Abstract

We investigated whether there is a trade-off between conservation and development in the vicinity of Madagascar's largest national park (Andasibe-Mantadia). The debate on this topic in Madagascar and other countries has focused on polarized questions protecting nature and forest resources or facilitating people's rights to exploit forest resources. The prevailing view is that both objectives cannot be achieved simultaneously and that a trade-off is inevitable. The key criterion used to select the four sites for this study was the distance from the entrance to the national park. Our survey data findings indicated that there was no correlation between restrictions on forest use and income or well-being. The villagers enjoy both direct and indirect benefits from the national park, namely the provision of jobs, electricity, water offered by the national park or by private tour operators. The national park and luxury hotels have replaced the state as service providers., Supplementary Information: The online version contains supplementary material available at 10.1007/s43545-021-00309-0., Competing Interests: Conflict of interestOn behalf of all authors, the corresponding author states that there is no conflict of interest., (© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022.)

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results