Almeida et al. 2025 (Article) Quesnelia, Brazil

From field data to policy action: Assessing the distribution and conservation of Quesnelia (Bromelioideae: Bromeliaceae), an endemic genus of the Atlantic Forest hotspot

Author(s):—R.A.C. Almeida Junior, C.R. Pelacani, E.P. Fernandez, M.B. Bicalho, L.Y.S. Aona, F.V.D. Souza, E.M.C. Leme & E.H. Souza

Publication:—Journal for Nature Conservation 86: 126940. (2025) — DOI

Abstract:—The genus Quesnelia comprises 24 species found predominantly in Atlantic Forest fragments, which together form a biodiversity hotspot facing high anthropic pressure. This study analyzes the distribution and assesses the conservation status of all 24 species of the genus Quesnelia. We conducted field collections and gathered data from virtual platforms such as Jabot, CRIA Species Link, HV-Reflora, and GBIF. Nineteen species are concentrated in the Southeast region of Brazil, while the South region hosts only Quesnelia humilis, Q. imbricata, and Q. testudo. Bahia is the only state in the Northeast with records of Quesnelia, with five endemic species. In terms of conservation status, 46% of the species face some level of threat. Four species are classified as Critically Endangered (CR), two as Endangered (EN) and five as Vulnerable (VU), while six species are categorized as Near Threatened (NT), five as Least Concern, and two as Data Deficient. The primary threats include the anthropization of their distribution areas, leading to reduced vegetation cover due to replacement with monocultures, pastures and urban expansion. Our results provide in situ conservation insights and suggest possible ex situ conservation strategies, such as cultivation in germplasm banks and botanical gardens along with reintroduction into their original habitats, among others.

Keywords:—Biodiversity, Anthropization, Endangered species, Conservation