An endangered reed, Arundo donaciformis, in a dynamic urban environment: The need for interdisciplinary conservation proposals

摘要: Abstract The expansion of urban environments is a major cause species decline. Regulatory protection rare leads however to conflicts between development and protection. Here, we develop an interdisciplinary study address three main issues concerning legally protected endemic reed, Arundo donaciformis (Poaceae), threatened by the town Frejus (Mediterranean France). First, found absence genetic variation across whole range that this has generalist ecological niche in ruderal habitats. These findings should facilitate its practical conservation. Second, diachronic revealed decline 50% distribution last twenty years. However, plays dominant structural role network green ways on banks watercourses. It thus provides services associated with riverbank stabilization natural corridors peripheral areas spaces. Third, sociological interviews two contrasting perceptions among local actors who view plant either as regression or highly resistant, even invasive, weed wastelands. Moreover, quasi-absent from planning documents show little comprehension need for conservation management, illustrative another case “knowing-doing” gap. In dynamic environment Mediterranean town, requires pragmatic collaboration complements scientific information knowledge order enhance links stakeholders implement sustained action.