Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach
Biological invasion of alien species is the second major threat to the sustainability of biodiversity within natural forest ecosystems. In Madagascar, the forest vestige of the highlands, Tapia forest which is source of more than 7% of income of the local population, is subject to such invasion. Pinus sp are invading more and more this ecosystem. In relation to this phenomenon, two great theories can be raised to explain the installation of species within a community. In order to understand the method of installation of Pinus species inside the Tapia forest, this study has tried to understand if there are parameters that influence this phenomenon. From a forest inventory on a total area of 3.75 ha, or 0.7% of the total Tapia forest at Arivonimamo II, we collected all ecological data concerning the biophysical, dendrometric and topographic characteristics of the stand. Statistical analyzes such as multi-component analysis and comparison analysis of the environment (invaded and non-invaded) yielded the abundance of Uapaca bojeri (a dominant species in the forest) but also the specific diversity within the stand negatively affects the existence of Pinus. This means that the smaller the number of individuals and fewer species, the easier Pinus is to install. As a result, we concluded that the environmental characteristics influence the distribution of exotic species such as Pinus sp within a forest ecosystem such as the Tapia forest.
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dig-cirad-fr-5896472019-09-16T07:05:00Z http://agritrop.cirad.fr/589647/ http://agritrop.cirad.fr/589647/ Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach. Rajaonarivelo Herimino Manoa, Bouvet Jean-Marc, Aritsara Amy Ny Aina, Flores Olivier, Ramamonjisoa Bruno. 2018. In : Booklet of Sfécologie 2018. Société Française d'Écologie et d'Évolution. Rennes : Société Française d'Écologie et d'Évolution, Résumé, 434. International Conference on Ecological Sciences : Sfécologie 2018, Rennes, France, 22 Octobre 2018/25 Octobre 2018.https://sfecologie2018.sciencesconf.org/data/pages/Abstract_booklet_Talks_Posters_Sfecologie_2020.pdf <https://sfecologie2018.sciencesconf.org/data/pages/Abstract_booklet_Talks_Posters_Sfecologie_2020.pdf> Researchers Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach Rajaonarivelo, Herimino Manoa Bouvet, Jean-Marc Aritsara, Amy Ny Aina Flores, Olivier Ramamonjisoa, Bruno eng 2018 Société Française d'Écologie et d'Évolution Booklet of Sfécologie 2018 Biological invasion of alien species is the second major threat to the sustainability of biodiversity within natural forest ecosystems. In Madagascar, the forest vestige of the highlands, Tapia forest which is source of more than 7% of income of the local population, is subject to such invasion. Pinus sp are invading more and more this ecosystem. In relation to this phenomenon, two great theories can be raised to explain the installation of species within a community. In order to understand the method of installation of Pinus species inside the Tapia forest, this study has tried to understand if there are parameters that influence this phenomenon. From a forest inventory on a total area of 3.75 ha, or 0.7% of the total Tapia forest at Arivonimamo II, we collected all ecological data concerning the biophysical, dendrometric and topographic characteristics of the stand. Statistical analyzes such as multi-component analysis and comparison analysis of the environment (invaded and non-invaded) yielded the abundance of Uapaca bojeri (a dominant species in the forest) but also the specific diversity within the stand negatively affects the existence of Pinus. This means that the smaller the number of individuals and fewer species, the easier Pinus is to install. As a result, we concluded that the environmental characteristics influence the distribution of exotic species such as Pinus sp within a forest ecosystem such as the Tapia forest. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/589647/1/ID589647.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://sfecologie2018.sciencesconf.org/data/pages/Abstract_booklet_Talks_Posters_Sfecologie_2020.pdf info:eu-repo/semantics/altIdentifier/purl/https://sfecologie2018.sciencesconf.org/data/pages/Abstract_booklet_Talks_Posters_Sfecologie_2020.pdf |
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Biological invasion of alien species is the second major threat to the sustainability of biodiversity within natural forest ecosystems. In Madagascar, the forest vestige of the highlands, Tapia forest which is source of more than 7% of income of the local population, is subject to such invasion. Pinus sp are invading more and more this ecosystem. In relation to this phenomenon, two great theories can be raised to explain the installation of species within a community. In order to understand the method of installation of Pinus species inside the Tapia forest, this study has tried to understand if there are parameters that influence this phenomenon. From a forest inventory on a total area of 3.75 ha, or 0.7% of the total Tapia forest at Arivonimamo II, we collected all ecological data concerning the biophysical, dendrometric and topographic characteristics of the stand. Statistical analyzes such as multi-component analysis and comparison analysis of the environment (invaded and non-invaded) yielded the abundance of Uapaca bojeri (a dominant species in the forest) but also the specific diversity within the stand negatively affects the existence of Pinus. This means that the smaller the number of individuals and fewer species, the easier Pinus is to install. As a result, we concluded that the environmental characteristics influence the distribution of exotic species such as Pinus sp within a forest ecosystem such as the Tapia forest. |
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conference_item |
author |
Rajaonarivelo, Herimino Manoa Bouvet, Jean-Marc Aritsara, Amy Ny Aina Flores, Olivier Ramamonjisoa, Bruno |
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Rajaonarivelo, Herimino Manoa Bouvet, Jean-Marc Aritsara, Amy Ny Aina Flores, Olivier Ramamonjisoa, Bruno Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach |
author_facet |
Rajaonarivelo, Herimino Manoa Bouvet, Jean-Marc Aritsara, Amy Ny Aina Flores, Olivier Ramamonjisoa, Bruno |
author_sort |
Rajaonarivelo, Herimino Manoa |
title |
Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach |
title_short |
Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach |
title_full |
Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach |
title_fullStr |
Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach |
title_full_unstemmed |
Pinus kesiya spread on the endemic Tapia forest: ecological characteristic analysis approach |
title_sort |
pinus kesiya spread on the endemic tapia forest: ecological characteristic analysis approach |
publisher |
Société Française d'Écologie et d'Évolution |
url |
http://agritrop.cirad.fr/589647/ http://agritrop.cirad.fr/589647/1/ID589647.pdf |
work_keys_str_mv |
AT rajaonariveloheriminomanoa pinuskesiyaspreadontheendemictapiaforestecologicalcharacteristicanalysisapproach AT bouvetjeanmarc pinuskesiyaspreadontheendemictapiaforestecologicalcharacteristicanalysisapproach AT aritsaraamynyaina pinuskesiyaspreadontheendemictapiaforestecologicalcharacteristicanalysisapproach AT floresolivier pinuskesiyaspreadontheendemictapiaforestecologicalcharacteristicanalysisapproach AT ramamonjisoabruno pinuskesiyaspreadontheendemictapiaforestecologicalcharacteristicanalysisapproach |
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1758025922726854656 |