Regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise

The concepts of plant diversity vulnerability are re-contextualized relative to global changes. The scope of the study is on an exceptional area, the rocky peri-urban coastline of Marseille (included in the Calanques National Park) where remarkable and threatened plant communities, named littoral ph...

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Autores principales:	Laurence Affre, Pierre-Jean Dumas, Estelle Dumas, Isabelle Laffont-Schwob, Thierry Tatoni
Formato:	article
Lenguaje:	FR
Publicado:	Éditions en environnement VertigO 2015
Materias:	human activities socio-ecological challenges population dynamics plant community peri-urban coast marine submersion Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/f8c119dceaf54ae9a814b9584876da69
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spelling	oai:doaj.org-article:f8c119dceaf54ae9a814b9584876da692021-12-02T10:02:20ZRegard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise1492-844210.4000/vertigo.15748https://doaj.org/article/f8c119dceaf54ae9a814b9584876da692015-02-01T00:00:00Zhttp://journals.openedition.org/vertigo/15748https://doaj.org/toc/1492-8442The concepts of plant diversity vulnerability are re-contextualized relative to global changes. The scope of the study is on an exceptional area, the rocky peri-urban coastline of Marseille (included in the Calanques National Park) where remarkable and threatened plant communities, named littoral phryganas, can be found. Human habitat destruction and/or degradation generated restricted and fragmented distribution of their populations associated with a high local demographic regression (near absence of recruitment, low reproductive success, high individual necrosis generated by salted / polluted sprays and important inter- specific competition by co-occurrent plants). Face to historical and actual phryganas vulnerability, questions on the impact of a potential rise of sea level and a deconstructed rocky coastline are addressed in an ecological perspective, rarely heard in debates concerning the set-back line strategy. The answers suggest in situ and ex situ management measures but also emerge new questions about the relationship of reciprocity between "urban" and "natural" systems based on a new notion of "living together" in order to effective land management. This is a reminder that it is crucial to combine ecological, social and economic factors in shaping a societal dialogue around issues of biodiversity and implementing concrete actions to habitat conservation.Laurence AffrePierre-Jean DumasEstelle DumasIsabelle Laffont-SchwobThierry TatoniÉditions en environnement VertigOarticlehuman activitiessocio-ecological challengespopulation dynamicsplant communityperi-urban coastmarine submersionEnvironmental sciencesGE1-350FRVertigO, Vol 21 (2015)
institution	DOAJ
collection	DOAJ
language	FR
topic	human activities socio-ecological challenges population dynamics plant community peri-urban coast marine submersion Environmental sciences GE1-350
spellingShingle	human activities socio-ecological challenges population dynamics plant community peri-urban coast marine submersion Environmental sciences GE1-350 Laurence Affre Pierre-Jean Dumas Estelle Dumas Isabelle Laffont-Schwob Thierry Tatoni Regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise
description	The concepts of plant diversity vulnerability are re-contextualized relative to global changes. The scope of the study is on an exceptional area, the rocky peri-urban coastline of Marseille (included in the Calanques National Park) where remarkable and threatened plant communities, named littoral phryganas, can be found. Human habitat destruction and/or degradation generated restricted and fragmented distribution of their populations associated with a high local demographic regression (near absence of recruitment, low reproductive success, high individual necrosis generated by salted / polluted sprays and important inter- specific competition by co-occurrent plants). Face to historical and actual phryganas vulnerability, questions on the impact of a potential rise of sea level and a deconstructed rocky coastline are addressed in an ecological perspective, rarely heard in debates concerning the set-back line strategy. The answers suggest in situ and ex situ management measures but also emerge new questions about the relationship of reciprocity between "urban" and "natural" systems based on a new notion of "living together" in order to effective land management. This is a reminder that it is crucial to combine ecological, social and economic factors in shaping a societal dialogue around issues of biodiversity and implementing concrete actions to habitat conservation.
format	article
author	Laurence Affre Pierre-Jean Dumas Estelle Dumas Isabelle Laffont-Schwob Thierry Tatoni
author_facet	Laurence Affre Pierre-Jean Dumas Estelle Dumas Isabelle Laffont-Schwob Thierry Tatoni
author_sort	Laurence Affre
title	Regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise
title_short	Regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise
title_full	Regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise
title_fullStr	Regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise
title_full_unstemmed	Regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise
title_sort	regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise
publisher	Éditions en environnement VertigO
publishDate	2015
url	https://doaj.org/article/f8c119dceaf54ae9a814b9584876da69
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Regard écologique sur le recul stratégique : atouts et risques pour la diversité végétale péri-urbaine marseillaise

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