Dynamiques des liens entre plantes rares, hommes, et espaces : socio-anthropologie des pratiques de (ré)introductions végétales

Abstract : During the 70’s, a new type of approaches gained popularity among specialists of living organisms: “reinforcements”, “introductions” and “reintroductions” of rare or threatened plants. Associated with the development of conservation biology, these approaches aim at reestablishing individuals in nature. Applied to animals, they sometimes appeared at the core of conflicts of national concern. Applied to plants, often considered to have less in common and hold lesser ties with humans, they appear mainly unnoticed. Behind this seemingly quiet appearance, what meaning and importance did they acquire for specialists? From which knowledge and during which dynamic of scientific ideas were they built? This thesis investigates the relationships between rare plants, humans and space through the socioanthropological study of (re)introduction projects carried out during the 80’s and 90’s and targeting three plant taxa: Cistus psilosepalus Sweet in Bretagne, Centaurea corymbosa Pourr. in Languedoc-Roussillon, and Arenaria grandiflora L. in Île-de-France. This thesis reveals changes of paradigms during which reintroduction projects in France were promoted: from the convergence of agronomical genetics and unique French institutions emerging from local impulsions – Botanical conservatories – to the organization and territorialisation of plant conservation in France. As collective projects, studied (re)introductions resulted from varying motivations, often related to the construction of an identity and a territory. Considered with distinct spatio-temporal and taxonomic frames of reference, (re)introductions resulted in the attribution of hybrid statuses to targeted plants. These marginal statuses were reinforced by the contingency of these projects. Beyond the approaches, the importance of the locations – of wild plants, of laboratory environment, of naturalist prospects, or of authority territory of Botanical Conservatories – appears critical as it allows various specialists gathering on the same object, though the latter is continuously questioned and redefined by each specialist.
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Anne-Claire Maurice. Dynamiques des liens entre plantes rares, hommes, et espaces : socio-anthropologie des pratiques de (ré)introductions végétales. Anthropologie sociale et ethnologie. Muséum National d'Histoire Naturelle, 2013. Français. ⟨tel-02063716⟩

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