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The role of urban structures in the distribution of wasteland flora in the Greater Paris Area, France
International audience, Wastelands are likely to host a significant part of urban floristic diversity but have received limited attention because they are not considered interesting green zones. Here, we explore the potential role of wastelands in maintaining urban biodiversity to help define effective urban management plans. We quantified floristic diversity in 98 wasteland sites of Hauts-de-Seine, one of the most densely populated areas in France, and characterized the environmental parameters and spatial distribution of sites to identify some of the factors that influence plant species composition and to explore the impact of urban environment on the floristic interest of wastelands. Their floristic richness represented 58% of the total richness observed in the whole study area. Site richness depended on site area (the largest sites were the richest) and site age, with a maximum in sites of intermediate age (4-13 years). In the largest sites only (>2,500 m 2), the floristic distance among sites was positively correlated with geographic distance, which suggests that migration of species among large sites partly controls local floristic composition. In contrast, the environmental distance among sites was not correlated with floristic distance. Finally, we showed that the presence of collective and individual dwellings within 200 m of a wasteland decreased its floristic rarity, whereas the presence of rivers or ponds increased it. We derive several recommendations to optimize the management of wastelands with respect to conservation of urban biodiversity.
Auteurs du document :
Muratet, Audrey, Machon, Nathalie, Jiguet, Frédéric, Moret, Jacques, Porcher, Emmanuelle, Centre d'Ecologie et des Sciences de la COnservation (CESCO) ; Muséum national d'Histoire naturelle (MNHN)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Conservatoire Botanique National du Bassin Parisien (CBNBP) ; Muséum national d'Histoire naturelle (MNHN)Obtenir le document :
HAL CCSDMots clés :
Indigeneity, Land use pattern, Hauts- de-Seine, Isolation by distance, Plant diversity, Urbanization, Rarity, [SDV.EE]Life Sciences [q-bio]/Ecology, environmentThème (issu du Text Mining) :
MILIEU NATUREL, INFORMATION - INFORMATIQUE, AMENAGEMENT DU TERRITOIRE - PAYSAGEDate :
2007Format :
text/xmlIdentifiant Documentaire :
mnhn-02265425, DOI: 10.1007/s10021-007-9047-6Source :
ISSN: 1432-9840, EISSN: 1435-0629, Ecosystems, https://hal-mnhn.archives-ouvertes.fr/mnhn-02265425, Ecosystems, Springer Verlag, 2007, 10 (4), pp.661-671. ⟨10.1007/s10021-007-9047-6⟩Langue :
AnglaisDroits d'utilisation :
info:eu-repo/semantics/OpenAccessUn permalien est l'URL initiale d'un article ou d'une page, conçu pour refèrer un élément d'information et rester inchangé de façon permanente.Permalien :
https://www.documentation.eauetbiodiversite.fr/notice/the-role-of-urban-structures-in-the-distribution-of-wasteland-flora-in-the-greater-paris-area-france0
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Ce portail, créé et géré par l'Office International de l'Eau (OiEau), est géré avec l'appui de l’Office français de la biodiversité (OFB)
Ce portail, créé et géré par l'Office International de l'Eau (OiEAU), est géré avec l'appui de l’Office français de la biodiversité (OFB)