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44 results on '"Randriambanona, Herizo"'

2. Chapitre 43. Traitement de scarification pré-germinatif des graines pour une restauration écologique des zones dégradées

Author

Rakoto, Felana Niaina Joseph, primary, Randrianirina, Vahatra Ainga Tahina, additional, Randriambanona, Herizo, additional, Andrianandrasana, Martial Doret, additional, Baohanta, Rondro Harinisainana, additional, Randriatafika, Faly, additional, Ramanamanjato, Jean Baptiste, additional, Razakatiana, Tsoushima E., additional, Rakotoarimanana, Vonjison, additional, and Ramanankierana, Heriniaina, additional

Published
2022
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4. Chapitre 24. Séchage des graines de Millettia pinnata L., Madagascar

Author

Mihajamanana, Nambinina Andry, primary, Rakoto, Felana Niaina Joseph, additional, Andrianandrasana, Martial Doret, additional, Baohanta, Rondro Harinisainana, additional, Ratsito, Rolland, additional, Randriatafika, Faly, additional, Rajoharison, Rivo Andriamaro, additional, Razakatiana, Tsoushima E., additional, Ramanankierana, Heriniaina, additional, and Randriambanona, Herizo, additional

Published
2022
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6. Chapitre 40. Contribution à la restauration écologique du site minier de Mandena Fort Dauphin, Madagascar

Author

Ranaivosoa-Toandro, Sitraka Mireille, primary, Voahanginirina, Léonnie Marcelline, additional, Razakatiana, Tsoushima Ernest, additional, Manantsoa, Faustin Francky, additional, Ratsizafy, Irinah, additional, Andrianandrasana, Martial Doret, additional, Ravonjimalala, Hibrahim R., additional, Randriambanona, Herizo, additional, Rakotoariseheno, Ramisandrazana, additional, Baohanta, Rondro H., additional, and Ramanankierana, Heriniaina, additional

Published
2022
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7. Chapitre 41. Dynamique temporelle des champignons endomycorhiziens associés à Mimosa latipinosa Lam. (Fabaceae)

Author

Ratsizafy, Irinah, primary, Baohanta, Rondro Harinisainana, additional, Andrianandrasana, Martial Doret, additional, Randriatafika, Faly, additional, Rajoharison, Rivo Andriamaro, additional, Razakatiana, Tsoushima E., additional, Randriambanona, Herizo, additional, Duponnois, Robin, additional, and Ramanankierana, Heriniaina, additional

Published
2022
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8. Chapitre 23. Évaluation des huiles extraites de différentes espèces de Millettia (Fabaceae) de Madagascar

Author

Randriambanona, Herizo, primary, Mihajamanana, Nambinina Andry, additional, Rakoto, Felana Niaina Joseph, additional, Andrianandrasana, Martial Doret, additional, Ratsito, Rolland, additional, Baohanta, Rondro H., additional, Randriatafika, Faly, additional, Ramanamanjato, Jean Baptiste, additional, and Ramanankierana, Heriniaina, additional

Published
2022
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9. Chapitre 42. Fonctionnement microbien des sols rhizosphériques d’espèces végétales natives d’un écosystème minier de Madagascar

Author

Baohanta, Rondro Harinisainana, primary, Ratsizafy, Irinah, additional, Maevatiana, Hermance, additional, Rakoto, Felana Niaina Joseph, additional, Andrianandrasana, Martial Doret, additional, Randriatafika, Faly, additional, Ramanamanjato, Jean Baptiste, additional, Razakatiana, Tsoushima E., additional, Ravonjimalala, Hibrahim R., additional, Randriambanona, Herizo, additional, Duponnois, Robin, additional, and Ramanankierana, Heriniaina, additional

Published
2022
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11. Stem nodulation: diversity and occurrence in Aeschynomene and Sesbania legumes from wetlands of Madagascar

Author

Manantsoa, Faustin F, primary, Rakotoarisoa, Marrino F, additional, Chaintreuil, Clemence, additional, Razakatiana, Adamson TE, additional, Gressent, Frederic, additional, Pervent, Marjorie, additional, Bourge, Mickael, additional, Andrianandrasana, Martial D, additional, Nouwen, Nico, additional, Randriambanona, Herizo, additional, Ramanankierana, Heriniaina, additional, and Arrighi, Jean-Francois, additional

Published
2023
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14. A phylogenetic framework of the legume genus Aeschynomene for comparative genetic analysis of the Nod-dependent and Nod-independent symbioses

Author

Brottier, Laurent, Chaintreuil, Clémence, Simion, Paul, Scornavacca, Céline, Rivallan, Ronan, Mournet, Pierre, Moulin, Lionel, Lewis, Gwilym P., Fardoux, Joël, Brown, Spencer C., Gomez-Pacheco, Mario, Bourges, Mickaël, Hervouet, Catherine, Gueye, Mathieu, Duponnois, Robin, Ramanankierana, Heriniaina, Randriambanona, Herizo, Vandrot, Hervé, Zabaleta, Maria, DasGupta, Maitrayee, D’Hont, Angélique, Giraud, Eric, and Arrighi, Jean-François

Published
2018
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15. Naturally occurring variations in the nod-independent model legume Aeschynomene evenia and relatives: a resource for nodulation genetics

Author

Chaintreuil, Clémence, Perrier, Xavier, Martin, Guillaume, Fardoux, Joël, Lewis, Gwilym P., Brottier, Laurent, Rivallan, Ronan, Gomez-Pacheco, Mario, Bourges, Mickaël, Lamy, Léo, Thibaud, Béatrice, Ramanankierana, Heriniaina, Randriambanona, Herizo, Vandrot, Hervé, Mournet, Pierre, Giraud, Eric, and Arrighi, Jean-François

Published
2018
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16. Growing up in the Betsileo landscape : Children's wild edible plants knowledge in Madagascar

Author

Porcher, Vincent, Carrière, Stéphanie M., Gallois, Sandrine, Randriambanona, Herizo, Rafidison, Verohanitra M., Reyes-García, Victoria, Porcher, Vincent, Carrière, Stéphanie M., Gallois, Sandrine, Randriambanona, Herizo, Rafidison, Verohanitra M., and Reyes-García, Victoria

Abstract

Understanding local knowledge about wild edible plants (WEP) is essential for assessing plant services, reducing the risks of knowledge extinction, recognizing the rights of local communities, and improving biodiversity conservation efforts. However, the knowledge of specific groups such as women or children tends to be under-represented in local ecological knowledge (LEK) research. In this study, we explore how knowledge of WEP is distributed across gender and life stages (adults/children) among Betsileo people in the southern highlands of Madagascar. Using data from free listings with 42 adults and 40 children, gender-balanced, we show that knowledge on WEP differs widely across gender and life stage. In addition, we find that children have extended knowledge of WEP while reporting different species than adults. Women's knowledge specializes in herbaceous species (versus other plant life forms), while men's knowledge specializes in endemic species (versus native or introduced). Finally, we find that introduced species are more frequently cited by children, while adults cite more endemic species. We discuss the LEK differentiation mechanisms and the implications of acquiring life stage's knowledge in the highland landscapes of Madagascar. Given our findings, we highlight the importance of considering groups with under-represented knowledge repositories, such as children and women, into future research.

Published
2022

17. Chapitre 23. Évaluation des huiles extraites de différentes espèces de Millettia (Fabaceae) de Madagascar

Author

Randriambanona, Herizo, Mihajamanana, Nambinina Andry, Rakoto, Felana Niaina Joseph, Andrianandrasana, Martial Doret, Ratsito, Rolland, Baohanta, Rondro H., Randriatafika, Faly, Ramanamanjato, Jean Baptiste, and Ramanankierana, Heriniaina

Subjects
alimentation, Afrique, plantes, collections botaniques, valorisation, Environmental studies, Geography & Development, Madagascar, gestion environnementale, champignons, savoirs traditionnels, médicaments, développement, écologie
Abstract

Introduction Depuis la première crise pétrolière des années 1970, la recherche d’une alternative au pétrole est devenue une priorité pour la majorité des pays dans le monde. La hausse du prix du pétrole, l’épuisement des réserves de pétrole et les problèmes environnementaux liés aux combustibles fossiles sont les principaux facteurs qui ont conduit à rechercher une source d’énergie alternative (Hasheminejad et al., 2011, Kesari et Rangan, 2011). Les biocarburants représentent l’une des altern...

Published
2022

18. Chapitre 40. Contribution à la restauration écologique du site minier de Mandena Fort Dauphin, Madagascar

Author

Ranaivosoa-Toandro, Sitraka Mireille, Voahanginirina, Léonnie Marcelline, Razakatiana, Tsoushima Ernest, Manantsoa, Faustin Francky, Ratsizafy, Irinah, Andrianandrasana, Martial Doret, Ravonjimalala, Hibrahim R., Randriambanona, Herizo, Rakotoariseheno, Ramisandrazana, Baohanta, Rondro H., and Ramanankierana, Heriniaina

Subjects
alimentation, Afrique, plantes, collections botaniques, valorisation, Environmental studies, Geography & Development, Madagascar, gestion environnementale, champignons, savoirs traditionnels, médicaments, développement, écologie
Abstract

Introduction Réputée pour sa richesse naturelle, Madagascar est considérée comme l’un des hot spots de la biodiversité mondiale. En effet, l’île abrite un nombre important de familles et de genres endémiques de plantes et d’animaux (Ganzhorn et al., 2001) : plus de 80 % d’espèces endémiques de mammifères terrestres, 91 % de reptiles, 99 % d’amphibiens, 41 % d’oiseaux et 80 % pour les plantes (Conservation International, 2003 ; Seligmann et al., 2007). Toutefois, la déforestation et la fragmen...

Published
2022

19. Biodiversité des écosystèmes intertropicaux

Author

Adiko, Adjo Estelle Genevieve, Adjonou, Kossi, Adomahou, Ronaldo, Ahononga, Codjo Fiacre, Ake-Assi, Emma Ablan, Akendengué, Blandine, Amani Katimbura, Guillaume, Andilyat, Mohamed, Andriaharimalala, Tahiana, Andriamanantena, Ainazo Herilala, Andriamanantena, Fenozo Heritiana, Andriamanantena, Zolalaina, Andriambololonera, Sylvie, Andrianandrasana, Martial Doret, Ardila-Chauvet, Stéphanie, Assongba, Yédjanlognon Faustin, Avaligbe, Yasminath Judith Follone, Avana, Marie Louise, Baker, William J., Baohanta, Rondro H., Baohanta, Rondro Harinisainana, Barima, Yao Sadaiou Sabas, Barnaud, Adeline, Batcho, Ismaël Akossibè, Bationo, Babou André, Beentje, Henk, Belem, Bassirou, Bene, Ali, Berthouly-Salazar, Cécile, Bezandry, Rickarlos, Biaou, Séverin, Billot, Claire, Birindwa, Bienfait, Biringanine Mugoli, Elisabeth, Boria, Sébastien, Bouvet, Jean-Marc, Carraz, Maëlle, Chaix, Gilles, Chenin, Eric, Cirimwami, Legrand, Cissé, Aby, Clermont-Dauphin, Cathy, Compaoré, Jean-Marie, Couteron, Pierre, Couvreur, Thomas, Cubaka, Alfred, D. Kokutse, Adzo Dzifa, Delaitre, Eric, Delmas, Maïté, Dembélé, Urbain, Diabaté, Mohamed, Diabaté, Moussa, Diarra, Ismaïla, Dieu, Nguyen Khac, Djego, Julien G. M., Djeuga Youga, Manuela Kelly, Dransfield, John, Dransfield, Soejatmi, Dubois, Cécile, Dubourg, Caroline, Duponnois, Robin, D’eeckenbrugge, Geo Coppens, Essobo, Edlyne Myrna Caprice Bouckandou Bouyeck, Étienne, Janique, Faramalala, Miadana, Fonkou, Théophile, Fonkui, Thierry Youmbi, Foresta, Hubert de, Fournier, Anne, Ganaba, Souleymane, Gnanazan, Zinsi Roseline Gouli, Gnangle, Paul Césaire, Gouwakinnou, Gérard Nounagnon, Grandcolas, Philippe, Guibal, Daniel, Guingand, Aurélien, Guissou, Innocent Pierre, Gurgand, Jacques, Haba, Ouo Ouo, Habiyaremye Muhashy, François, Haevermans, Thomas, Hanh Diep, Thi My, Hervé, Dominique, Hitimana, Mathias, Houessou, Gbènato Laurent, Houeto, Ogoubiyi Félix, Houndonougbo, Aimé, Houngnon, Alfred, Houphlet, Stéphanie Diane Konan, Huchard, Marianne, Idjigberou, Shègoun Eudes, Ilboudo, Zakaria, Iltis, Jacques, Irenge, Emmanuel, Johnson, Benziwa Nathalie, K. Ewedje, Eben-Ezer B., Kane, Ndjido Ardo, Kaplin, Beth, Keip, Priscilla, Kenfack, Carine Pamela, Kenmene, Léa Alida, Koffi, Jean Kouao, Kokou, Kouami, Konan-Waidhet, Arthur Brice, Koné, Falaye, Kouame, Djaha, Kouassi, Faustine Akossoua, Kouman, Kouame Jean Marc, Kouyate, Amadou Malé, Kpangui, Kouassi Bruno, Labouisse, Jean-Pierre, Langbour, Patrick, Lejoly, Jean, Leroy, Thierry, Le Duc, Jean-Patrick, Loan, Nguyễn thị Bich, Lubalega, Tolérant K., Lumande, Joseph Kasali, Machouart, Marie-Claire, Maevatiana, Hermance, Manantsoa, Faustin Francky, Mangombe, Emmanuel, Manirakiza, Jean Marie Vianney, Marnotte, Pascal, Martin, Pierre, Masharabu, Tatien, Masumbuko Ndabaga, Céphas, Mbuntcha, Hélène, Metsebing, Blondo-Pascal, Mevanly, Ouattara, Mihajamanana, Nambinina Andry, Monèmou, Pépé, Mossebo, Dominique Claude, Muanda, Ernest, Muller, Serge, Munoz, François, Najate, Maghnaoui, Ndayishimiye, Joël, Ndiaye, Alihou, Ndinteh, Derek Tantoh, Ngendakumana, Ezéchiel, Nguetsop, Victor François, Nikièma, Aude, N’Goran, Koua Serge Béranger, Oba, Romuald, Osseni, Abdel Aziz, Ouali, Ténipagba, Ouattara, Djakalia, Ouedraogo, Amadé, Ouédraogo, Issiaka, Ouédraogo, Moussa, Ouédraogo, Noufou, Pignal, Marc, Pitta Badjo, Mireille Stéphanie, Profizi, Jean-Pierre, Rabiou, Habou, Rafidison, Verohanitra M., Rajoharison, Rivo Andriamaro, Rakoto, Felana Niaina Joseph, Rakotoarimanana, Vonjison, Rakotoarinivo, Mijoro, Rakotoariseheno, Ramisandrazana, Rakotondraompiana, Solofo, Rakotoniaina, Solofoarisoa, Ramadhoini, Ali, Ramamonjisoa, Lolona, Ramanamanjato, Jean Baptiste, Ramanankierana, Heriniaina, Rambeloarisoa, Lalaina, Ramiandrisoa, Botovao Auguste, Ramiarana, Elie, Ramiarison, Claudine, Ramihangihajason, Tony Arison, Rana, Anshuman Singh, Ranaivojaona, Sariaka Bianca, Ranaivosoa-Toandro, Sitraka Mireille, Ranarijaona, Hery Lisy Tiana, Randriambanona, Herizo, Randrianirina, Vahatra Ainga Tahina, Randrianjafy, Irinomenjanahary, Randriatafika, Faly, Raondry Rakotoarisoa, Noëline, Rapanarivo, Solo H., Ratsito, Rolland, Ratsizafy, Irinah, Ravonjimalala, Hibrahim R., Razafimandimby, Harizoly, Razafindrabe, Malala Aalexandra, Razakatiana, Tsoushima E., Razakatiana, Tsoushima Ernest, Renard, Delphine, Riera, Bernard, Rivallan, Ronan, Roger, Edmond, Rossow, Véronique, Rukundo, Olivier, Sabatier, Sylvie Annabel, Sacandé, Moctar, Saidou, Aliou, Sall, Saidou N., Sam, Ly Ngoc, Samaké, Ibrahim, Sangaré, Agnès, Sanou, Lassina, Sarter, Samira, Schippa, Christine, Segla, Kossi Novinyo, Silvie, Pierre, Simmy, Pè Louoguea, Sina, Sibidou, Sinsin, Brice A., Somanin, Richard Menson, Sonke, Bonaventure, Sonkoue Njimeli, Patrick, Soropogui, Zaou, Tagne, Appolinaire, Tapondjou Azefack, Léon, Teres, Paule, Tibiri, André, Tiébré, Marie-Solange, Tougiani, Abasse, Tra, Bi Boli Francis, Traoré, Lassina, Traoré, Siaka Drissa, Traoré, Tata Kadiatou, Tsiavahananahary, Tsaralaza Jorlin, Turk, Robert D., Vavitsara, Marie Élodie, Vignes-Lebbe, Régine, Voahanginirina, Léonnie Marcelline, Vunzi, Joel, Womeni, Hilaire Macaire, Yao, Constant Yves Adou, Yao, Konan, Yian, Gouvé Claver, Yoka, Joseph, Profizi, Jean-Pierre, Ardila-Chauvet, Stéphanie, Billot, Claire, Couteron, Pierre, Delmas, Maïté, Hanh Diep, Thi My, Grandcolas, Philippe, Kokou, Kouami, Muller, Serge, Rana, Anshuman Singh, Ranarijaona, Hery Lisy Tiana, and Sonke, Bonaventure

Subjects
alimentation, Afrique, plantes, collections botaniques, valorisation, Environmental studies, Geography & Development, Madagascar, gestion environnementale, champignons, savoirs traditionnels, médicaments, développement, écologie
Abstract

Dans un monde confronté aux changements climatiques et à des pandémies en lien avec la destruction des milieux naturels, les enjeux liés à la préservation de la biodiversité sont dorénavant bien connus et ont donné lieu à des accords internationaux majeurs, comme le protocole de Nagoya. Dans ce contexte mondial, les recherches menées au Sud sont primordiales. Les contributions rédigées ici par des chercheurs dʼAfrique, de lʼocéan Indien, dʼAsie du Sud-Est et dʼEurope traduisent la vigueur de la recherche sur la biodiversité dans les pays intertropicaux francophones. Documenter la diversité des écosystèmes végétaux locaux, mieux connaître les savoirs traditionnels et les utilisations populaires des plantes ou des champignons, valoriser le rôle des collections botaniques, identifier des chaînes de valorisation économique responsables, gérer durablement les écosystèmes et leurs ressources, élaborer des outils stratégiques pour une gouvernance environnementale basée sur la science et, enfin, montrer la nécessité de lʼimplication citoyenne et de lʼensemble des acteurs concernés, tels sont les grands thèmes déclinés ici. Cet ouvrage collectif intéressera tous ceux qui travaillent sur la biodiversité des écosystèmes intertropicaux. Il souligne la nécessité dʼune science de lʼaction au service du développement durable.

Published
2022

20. Chapitre 24. Séchage des graines de Millettia pinnata L., Madagascar

Author

Mihajamanana, Nambinina Andry, Rakoto, Felana Niaina Joseph, Andrianandrasana, Martial Doret, Baohanta, Rondro Harinisainana, Ratsito, Rolland, Randriatafika, Faly, Rajoharison, Rivo Andriamaro, Razakatiana, Tsoushima E., Ramanankierana, Heriniaina, and Randriambanona, Herizo

Subjects
alimentation, Afrique, plantes, collections botaniques, valorisation, Environmental studies, Geography & Development, Madagascar, gestion environnementale, champignons, savoirs traditionnels, médicaments, développement, écologie
Abstract

Introduction Dans un monde où l’énergie est devenue une préoccupation essentielle pour les acteurs économiques, les biocarburants connaissent un développement sans précédent depuis les années 1990. Cette évolution, encouragée par des mesures politiques, vise à la fois à diminuer la dépendance énergétique vis-à-vis des ressources d’origine fossile et à limiter les émissions de gaz à effet de serre, dont l’influence sur le réchauffement climatique est reconnue par l’ensemble de la communauté sc...

Published
2022

21. Chapitre 42. Fonctionnement microbien des sols rhizosphériques d’espèces végétales natives d’un écosystème minier de Madagascar

Author

Baohanta, Rondro Harinisainana, Ratsizafy, Irinah, Maevatiana, Hermance, Rakoto, Felana Niaina Joseph, Andrianandrasana, Martial Doret, Randriatafika, Faly, Ramanamanjato, Jean Baptiste, Razakatiana, Tsoushima E., Ravonjimalala, Hibrahim R., Randriambanona, Herizo, Duponnois, Robin, and Ramanankierana, Heriniaina

Subjects
alimentation, Afrique, plantes, collections botaniques, valorisation, Environmental studies, Geography & Development, Madagascar, gestion environnementale, champignons, savoirs traditionnels, médicaments, développement, écologie
Abstract

Introduction Les exploitations minières ont des conséquences significatives sur l’environnement, entraînant la destruction des écosystèmes naturels et des risques de pollution ; elles peuvent également menacer les zones agricoles (Le Roux, 2002). Au terme d’une exploitation minière, une absence totale de sol arable, au sens pédologique et/ou biologique, est généralement constatée (Bradshaw, 1983). C’est pourquoi les acteurs de l’environnement cherchent comment faciliter la réhabilitation écol...

Published
2022

22. Chapitre 39. Influence des espèces pionnières facilitatrices sur la recolonisation forestière

Author

Ramiarana, Elie, Randriambanona, Herizo, Hervé, Dominique, and Ramanankierana, Heriniaina

Subjects
alimentation, Afrique, plantes, collections botaniques, valorisation, Environmental studies, Geography & Development, Madagascar, gestion environnementale, champignons, savoirs traditionnels, médicaments, développement, écologie
Abstract

Introduction Les changements rapides et continus du climat mondial ont provoqué d’importants changements dans la répartition des espèces (Parmesan et Yohe, 2003). Compte tenu des activités anthropiques, la déforestation et la fragmentation de l’habitat peuvent avoir un impact sur les trajectoires et les résultats de la restauration forestière (Allan, 2004 ; Tscharntke et al., 2005). L’intensification de l’utilisation des terres (cultures répétées après brûlis) peut entraîner la faible recolon...

Published
2022

23. Chapitre 41. Dynamique temporelle des champignons endomycorhiziens associés à Mimosa latipinosa Lam. (Fabaceae)

Author

Ratsizafy, Irinah, Baohanta, Rondro Harinisainana, Andrianandrasana, Martial Doret, Randriatafika, Faly, Rajoharison, Rivo Andriamaro, Razakatiana, Tsoushima E., Randriambanona, Herizo, Duponnois, Robin, and Ramanankierana, Heriniaina

Subjects
alimentation, Afrique, plantes, collections botaniques, valorisation, Environmental studies, Geography & Development, Madagascar, gestion environnementale, champignons, savoirs traditionnels, médicaments, développement, écologie
Abstract

Introduction La recolonisation des sols par les végétaux après une exploitation minière est un défi de taille non seulement pour les sociétés minières, qui se sont engagées à les restaurer, mais aussi pour les scientifiques voulant comprendre la complexité des mécanismes qui régissent le fonctionnement de cet écosystème particulier. En effet, plusieurs études ont rapporté que les sols, après l’extraction des minerais, deviennent extrêmement pauvres en éléments nutritifs, ce qui les rend impro...

Published
2022

24. Chapitre 43. Traitement de scarification pré-germinatif des graines pour une restauration écologique des zones dégradées

Author

Rakoto, Felana Niaina Joseph, Randrianirina, Vahatra Ainga Tahina, Randriambanona, Herizo, Andrianandrasana, Martial Doret, Baohanta, Rondro Harinisainana, Randriatafika, Faly, Ramanamanjato, Jean Baptiste, Razakatiana, Tsoushima E., Rakotoarimanana, Vonjison, and Ramanankierana, Heriniaina

Subjects
alimentation, Afrique, plantes, collections botaniques, valorisation, Environmental studies, Geography & Development, Madagascar, gestion environnementale, champignons, savoirs traditionnels, médicaments, développement, écologie
Abstract

Introduction Le genre Millettia, composé d’arbres, d’arbustes et de lianes, appartient à la famille des Fabaceae. Il compte 260 espèces dans les régions tropicales et subtropicales du monde (Banzouzi et al., 2008). Parmi les 139 espèces rencontrées en Afrique, il existe neuf espèces à Madagascar, dont huit sont endémiques (Du Puy et al., 2002) et une est introduite (Kull et al., 2012). Millettia taolanaroensis est l’une de ces espèces endémiques ; elle se rencontre uniquement dans les environ...

Published
2022

25. Biocultural landscapes diversity shaped by agricultural systems in Madagascar

Author

Carrière, Stéphanie, Randriambanona, Herizo, Labeyrie, Vanesse, Hervé, Dominique, Mariel, Juliette, Razanaka, Samuel, Randriamalala, Josoa, Institut de Recherche pour le Développement (IRD), Centre National de Recherche sur l'Environnement (CNRE), Savoirs, ENvironnement et Sociétés (SENS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut de Recherche pour le Développement (IRD), Département Environnements et Sociétés (Cirad-ES), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), ESSA, Université d'Antananarivo, Madagascar, and Université d'Antananarivo

Subjects
[SDE]Environmental Sciences
Abstract

International audience; Understanding how biocultural landscapes, as a result of human-nature interactions, have emerged and will evolve seem to us a fundamental prerequisite to better anticipate and understand the new ecological dynamics at work in Madagascar. This may help to better implement biodiversity conservation measures within and outside protected areas. In this contribution, we present several biocultural landscapes on the island, providing examples in contrasting ecological situations. These range from relatively old agricultural and agroforestry landscapes that continue to evolve today, which in turn make up relatively densely wooded landscapes without natural forests in an agroforestry landscape entirely formed by farmers. These cultivated landscapes, rich in cash crops, provide significant income to farmers, which makes such regions some of the most economically productive on the island. In contrast, the dry spiny thicket in the extreme south, provides an example with rather different dynamics. Here, the combination of the local cultural groups relying on agricultural activities (hatsaky or swidden agriculture) and hunting-gathering live in a rather ecologically extreme ecosystem. In the following sections, we present several biocultural landscapes and place each in its historical, biogeographical, human, and economic context.

Published
2022

27. Native forest regeneration and eucalyptus plantations in the Malagasy Highland.

Author

Randriamalala, Josoa R., Rabeniala, Radobarimanjaka, and Randriambanona, Herizo

Subjects
FOREST regeneration, SECONDARY forests, EUCALYPTUS, PLANTATIONS, UPLANDS
Abstract

Eucalyptus plantations (EP) offer a number of goods and services that can reduce pressure on native forests. Eucalyptus trees can also be invasive and have a negative impact on native species diversity and regeneration. This article deals with the complex interaction between EP and native forests by studying the case of the humid forests of Malagasy Central High Land that are surrounded by EP. Floristic inventories were carried out on 400 m2 plots in adjacent secondary forests (n = 5) and EP (n = 6). Eucalyptus has not spread to secondary forests understory. Native species from secondary forests have colonised EP understory. [ABSTRACT FROM AUTHOR]

Published
2023
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28. Microbial symbionts and nutrients (n and p) sharing : effect on soil microbial activity in the upland rice (Oriza sativa) and bean (Phaseolus vulgaris) intercropping

Author

Razakatiana, Adamson Tsoushima Ernest, Becquer, Thierry, Randriambanona, Herizo, Baohanta, Rondro Harinisainana, Andrianandrasana, Martial Doret, Le Roux, Christine, Duponnois, Robin, Ramanankierana, Heriniaina, Centre national de recherches sur l'environnement, Centre National de Recherches sur l'Environnement, Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA), Laboratoire des symbioses tropicales et méditerranéennes (UMR LSTM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Département Systèmes Biologiques (Cirad-BIOS), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)

Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences, F08 - Systèmes et modes de culture, Relation plante sol, Azote, Biologie du sol, Oryza sativa, microbial symbionts, Phaseolus vulgaris, Culture intercalaire, Interactions biologiques, upland rice, Symbiote, fungi, P35 - Fertilité du sol, Activité biologique dans le sol, P34 - Biologie du sol, food and beverages, co-culture, Phosphore, bean, Écologie microbienne, inoculum
Abstract

The symbiotic association (plant-soil-microorganisms) has an important role in nitrogen (N) and phosphorus (P) uptake. The main objective of this study is to assess the potential of fungal and rhizobial symbionts as well as the importance of plant-soil-microorganism interactions on microbial dynamics. The upland rice and the beans were cultivated in mono or in co-culture using the rhizospheric soil of the upland rice and beans collected on plots treated with different levels of organic and mineral fertilizers. What about saying: Microbial (fungal and rhizobial) inoculate were constituted by root fragments (rice or bean) collected from previous crop and coded as I1 (root fragments from rice), I2 (root fragments from bean) and I3 (mixed root fragments from rice and bean). The results showed that soils inoculated with I1 and I3, were characterized by high phosphatase activity. These two treatments enhance also the amount of nitrogen and phosphorus in the aerial part of upland rice intercropped with bean. These results suggest that the bean with its symbiont can be considered as ecological engineers that stimulate the biological functioning of soils and is beneficial for upland rice cultivation.

Published
2020

32. ALLELOPATHIC EFFECTS OF Grevillea banksii R. BR. LEAF EXTRACTS AND ITS RHIZOSPHERIC SOIL ON GERMINATION AND INITIAL GROWTH OF THREE AGRICULTURAL CROPS IN MADAGASCAR.

Author

ANDRIANANDRASANA, Martial Doret, ANDRY MIHAJAMANANA, Nambinina, RAKOTOJOSEPH, Felana, BAOHANTA, Rondro Harinisainana, RANDRIAMBANONA, Herizo, CORNEA, Călina Petruţa, KHASA, Damase, and RAMANANKIERANA, Heriniaina

Subjects
ALLELOPATHIC agents, GREVILLEA, RHIZOSPHERE, GERMINATION, CROPS
Abstract

G. banksii R. Br. is a widespread species forming dense populations in the Eastern part of Madagascar. The aim of this study was to investigate the allelopathic effects of G. banksii on seeds germination and initial growth of three agricultural crops: rice (Oriza sativa L.), maize (Zea mays L.) and bean (Phaseolus vulgaris L.). The effects of leaf (leaf powder and aqueous leaf extracts obtained after shaking during 24 and 48 h) and rhizospheric soil (soil powder and aqueous soil extract shaken during 72 h) of G. banksii on seeds germination, seedling length of each tested plant were described in vitro. Results showed that the rhizospheric soil of G. banksii activates the germination of bean and maize seeds as well as the seedling length development of all crop species but inhibit rice seeds germination. However, all aqueous leaf extract inhibit seeds germination and the shoot and root length development of the three crops species tested, especially for rice and maize roots length development. This investigation therefore comparatively reveals that the leaves extract of G. banksii has more allelopathy than rhizospheric soil in seed germination and initial growth of agricultural crops tested. The results suggest some cautions when using the shoots of G. banksii as plant cover in farming systems. [ABSTRACT FROM AUTHOR]

Published
2020

33. A phylogenetic framework of the legume genusAeschynomenefor comparative genetic analysis of the Nod-dependent and Nod-independent symbioses

Author

Brottier, Laurent, primary, Chaintreuil, Clémence, additional, Simion, Paul, additional, Scornavacca, Céline, additional, Rivallan, Ronan, additional, Mournet, Pierre, additional, Moulin, Lionel, additional, Lewis, Gwilym P., additional, Fardoux, Joël, additional, Brown, Spencer C., additional, Gomez-Pacheco, Mario, additional, Bourges, Mickaël, additional, Hervouet, Catherine, additional, Gueye, Mathieu, additional, Duponnois, Robin, additional, Ramanankierana, Heriniaina, additional, Randriambanona, Herizo, additional, Vandrot, Hervé, additional, Zabaleta, Maria, additional, DasGupta, Maitrayee, additional, D’Hont, Angélique, additional, Giraud, Eric, additional, and Arrighi, Jean-François, additional

Published
2018
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36. Nurse plant effect on mycorrhizal soil infectivity and soil fertility restoration in Madagascar upland rice farming. [P72]

Author

Baohanta, Rondro, Randriambanona, Herizo, Andrianandrasana, M. Doret, Razakatiana, Adamson T., Razananirina, Jefferson, Rajaonarimamy, Elinarindra, Ducousso, Marc, Duponnois, Robin, and Ramanankierana, Heriniaina

Subjects
F01 - Culture des plantes, P40 - Météorologie et climatologie, fungi, P35 - Fertilité du sol, food and beverages, F40 - Ecologie végétale, P36 - Erosion, conservation et récupération des sols
Abstract

On one hand, nurse plant designed those plant species which could have positive effects on the development of other plant species by several aspects. This technology could be a special key to mitigate the effect of climate change on farming by valuing natural resources present in each ecosystem. On the other hand, mycorrhizal soil infectivity and soil enzyme activity are the most sensitive parameters to the variation of plant species' structure and of land use. The long-term experimental site is located in the eastern part of Madagascar. The aim of this study was to select nurse plant among all plant species which are naturally associated with upland rice according to some criteria such as symbiotic status, endemicity, distribution, scattering method as well as mycorrhizal soil infectivity and soil enzyme activity related to each selected plant species. We recorded 17 plant species belonging to a functional group of mainly shrub and herbaceous species which are naturally associated with upland rice. There were 5 endemic and 2 naturalized species such as Aphloia sp, Casearia sp, Doratoxylon sp, Streblus sp etc. which were both described to be associated with Vesicular and Arbuscular Mycorrhizal Fungi (AMF). The analysis showed that compared to bare soil or rhizosphere soil of other plant species, their rhizospheric soil was characterized by a great diversity of AMF spores and significant activity of soil phosphatase. The most probable number of Mycorrhizal fungi propagules (MPN) in soil was significantly higher in soil colonized by these species. These results suggest that at least one of these selected plant species could be used as a nurse plant to enhance soil fertility for the benefit of upland rice production. (Texte intégral)

Published
2015

37. The evolutionary dynamics of ancient and recent polyploidy in the African semiaquatic species of the legume genus #Aeschynomene#

Author

Chaintreuil, Clémence, Gully, Djamel, Hervouet, Catherine, Tittabutr, Panlada, Randriambanona, Herizo, Brown, Spencer, Lewis, Gwilym P., Bourge, Mickael, Cartieaux, Fabienne, Boursot, Marc, Ramanankierana, Heriniaina, D'Hont, Angélique, Teaumroong, Neung, Giraud, Eric, Arrighi, Jean-François, Chaintreuil, Clémence, Gully, Djamel, Hervouet, Catherine, Tittabutr, Panlada, Randriambanona, Herizo, Brown, Spencer, Lewis, Gwilym P., Bourge, Mickael, Cartieaux, Fabienne, Boursot, Marc, Ramanankierana, Heriniaina, D'Hont, Angélique, Teaumroong, Neung, Giraud, Eric, and Arrighi, Jean-François

Abstract

The legume genus Aeschynomene is notable in the ability of certain semiaquatic species to develop nitrogen-fixing stem nodules. These species are distributed in two clades. In the first clade, all the species are characterized by the use of a unique Nod-independent symbiotic process. In the second clade, the species use a Nod-dependent symbiotic process and some of them display a profuse stem nodulation as exemplified in the African Aeschynomene afraspera. To facilitate the molecular analysis of the symbiotic characteristics of such legumes, we took an integrated molecular and cytogenetic approach to track occurrences of polyploidy events and to analyze their impact on the evolution of the African species of Aeschynomene. Our results revealed two rounds of polyploidy: a paleopolyploid event predating the African group and two neopolyploid speciations, along with significant chromosomal variations. Hence, we found that A. afraspera (8x) has inherited the contrasted genomic properties and the stem-nodulation habit of its parental lineages (4x). This study reveals a comprehensive picture of African Aeschynomene diversification. It notably evidences a history that is distinct from the diploid Nod-independent clade, providing clues for the identification of the specific determinants of the Nod-dependent and Nod-independent symbiotic processes, and for comparative analysis of stem nodulation.(Résumé d'auteur)

Published
2016

38. Mycorrhizal fungi diversity and their importance on the establishment of native species seedlings within Madagascarian degraded sclerophyllous forest

Author

Baohanta, Rondro, Randriambanona, Herizo, Ducousso, Marc, Rakotoarimanga, Christophe Nirina, Prin, Yves, Ramanankierana, Heriniaina, and Duponnois, Robin

Subjects
Reconstitution forestière, Identification, Distribution géographique, Symbiose, Variation génétique, K01 - Foresterie - Considérations générales, Croissance, Mycorhizé, P34 - Biologie du sol, Ectomycorhize, Forêt, Plantule, Introduction de plantes, Arbuste
Published
2014

40. The evolutionary dynamics of ancient and recent polyploidy in the African semiaquatic species of the legume genus Aeschynomene

Author

Chaintreuil, Clémence, primary, Gully, Djamel, additional, Hervouet, Catherine, additional, Tittabutr, Panlada, additional, Randriambanona, Herizo, additional, Brown, Spencer C., additional, Lewis, Gwilym P., additional, Bourge, Mickaël, additional, Cartieaux, Fabienne, additional, Boursot, Marc, additional, Ramanankierana, Heriniaina, additional, D'Hont, Angélique, additional, Teaumroong, Neung, additional, Giraud, Eric, additional, and Arrighi, Jean‐François, additional

Published
2016
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41. Nurse plant effect on mycorrhizal soil infectivity and soil fertility restoration in Madagascar upland rice farming. [P72]

Author

Baohanta, Rondro Harinisainana, Randriambanona, Herizo, Andrianandrasana, M. Doret, Razakatiana, Adamson T., Razananirina, Jefferson, Rajaonarimamy, Elinarindra, Ducousso, Marc, Duponnois, Robin, Ramanankierana, Heriniaina, Baohanta, Rondro Harinisainana, Randriambanona, Herizo, Andrianandrasana, M. Doret, Razakatiana, Adamson T., Razananirina, Jefferson, Rajaonarimamy, Elinarindra, Ducousso, Marc, Duponnois, Robin, and Ramanankierana, Heriniaina

Abstract

On one hand, nurse plant designed those plant species which could have positive effects on the development of other plant species by several aspects. This technology could be a special key to mitigate the effect of climate change on farming by valuing natural resources present in each ecosystem. On the other hand, mycorrhizal soil infectivity and soil enzyme activity are the most sensitive parameters to the variation of plant species' structure and of land use. The long-term experimental site is located in the eastern part of Madagascar. The aim of this study was to select nurse plant among all plant species which are naturally associated with upland rice according to some criteria such as symbiotic status, endemicity, distribution, scattering method as well as mycorrhizal soil infectivity and soil enzyme activity related to each selected plant species. We recorded 17 plant species belonging to a functional group of mainly shrub and herbaceous species which are naturally associated with upland rice. There were 5 endemic and 2 naturalized species such as Aphloia sp, Casearia sp, Doratoxylon sp, Streblus sp etc. which were both described to be associated with Vesicular and Arbuscular Mycorrhizal Fungi (AMF). The analysis showed that compared to bare soil or rhizosphere soil of other plant species, their rhizospheric soil was characterized by a great diversity of AMF spores and significant activity of soil phosphatase. The most probable number of Mycorrhizal fungi propagules (MPN) in soil was significantly higher in soil colonized by these species. These results suggest that at least one of these selected plant species could be used as a nurse plant to enhance soil fertility for the benefit of upland rice production. (Texte intégral)

Published
2015

44. Naturally occurring variations in the nod-independent model legume <italic>Aeschynomene evenia</italic> and relatives: a resource for nodulation genetics.

Author

Chaintreuil, Clémence, Perrier, Xavier, Martin, Guillaume, Fardoux, Joël, Lewis, Gwilym P., Brottier, Laurent, Rivallan, Ronan, Gomez-Pacheco, Mario, Bourges, Mickaël, Lamy, Léo, Thibaud, Béatrice, Ramanankierana, Heriniaina, Randriambanona, Herizo, Vandrot, Hervé, Mournet, Pierre, Giraud, Eric, and Arrighi, Jean-François

Subjects
AESCHYNOMENE, LEGUMES, GENOTYPES, PLOIDY, SYMBIOSIS
Abstract

Background: Among semi-aquatic species of the legume genus Aeschynomene, some have the unique property of being root and stem-nodulated by photosynthetic Bradyrhizobium lacking the nodABC genes necessary for the production of Nod factors. These species provide an excellent biological system with which to explore the evolution of nodulation in legumes. Among them, Aeschynomene evenia has emerged as a model legume to undertake the genetic dissection of the so-called Nod-independent symbiosis. In addition to the genetic analysis of nodulation on a reference line, natural variation in a germplasm collection could also be surveyed to uncover genetic determinants of nodulation. To this aim, we investigated the patterns of genetic diversity in a collection of 226 Nod-independent Aeschynomene accessions. Results: A combination of phylogenetic analyses, comprising ITS and low-copy nuclear genes, along with cytogenetic experiments and artificial hybridizations revealed the richness of the Nod-independent Aeschynomene group with the identification of 13 diploid and 6 polyploid well-differentiated taxa. A set of 54 SSRs was used to further delineate taxon boundaries and to identify different genotypes. Patterns of microsatellite diversity also illuminated the genetic basis of the Aeschynomene taxa that were all found to be predominantly autogamous and with a predicted simple disomic inheritance, two attributes favorable for genetics. In addition, taxa displaying a pronounced genetic diversity, notably A. evenia, A. indica and A. sensitiva, were characterized by a clear geographically-based genetic structure and variations in root and stem nodulation. Conclusion: A well-characterized germplasm collection now exists as a major genetic resource to thoroughly explore the natural variation of nodulation in response to different bradyrhizobial strains. Symbiotic polymorphisms are expected to be found notably in the induction of nodulation, in nitrogen fixation and also in stem nodulation. Subsequent genetic analysis and locus mapping will pave the way for the identification of the underlying genes through forward or reverse genetics. Such discoveries will significantly contribute to our understanding of the molecular mechanisms underpinning how some Aeschynomene species can be efficiently nodulated in a Nod-independent fashion. [ABSTRACT FROM AUTHOR]

Published
2018
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