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Acta Biológica Colombiana
versão impressa ISSN 0120-548X
Resumo
ENDANU-HUERTA, Esthela et al. Orchid Diversity of the Palizada-del Este Fluvial Deltaic Lagoon System, in the Area de Protectión de Flora y Fauna Laguna de Términos, Campeche, Mexico. Acta biol.Colomb. [online]. 2017, vol.22, n.3, pp.398-407. ISSN 0120-548X. https://doi.org/10.15446/abc.v22n3.53107.
This paper is a contribution to the knowledge of the diversity of Orchidaceae in the Palizada del Este (SFLD-PE) fluvial-lagoon-deltic system based upon data generated from 15 collection events at ten sites conducted August 2012 through February 2014. The checklist includes 27 species in 17 genera. Eight species are new records for the SFLD-PE: Bletia purpurea, Catasetum integerrimum, Habenaria pringlei, H. repens, Laelia (Schomburgkia) rubescens, Myrmecophila tibicinis, Ornithocephalus inflexus, and Rhetinantha friedrichsthalii. The genera with the largest number of species are Epidendrum (4) and Prosthechea (4). As regards to life form, 23 species are epiphytic (85 %), three species are terrestrial or semiaquatic (12 %), and one species is terrestrial (3 %). The species present in more sites are Brassavola grandiflora (8), Bletia purpurea (7), and Habenaria repens (6). The hosts with the largest number of species are Pachira aquatica (20) and Zygia latifolia (7). Epidendrum isthmi is found in a risk category according to NOM-059-SEMARNAT-2010. Several anthropic actions negatively affect the SFLD-PE: deforestation, fires, and open water channels lead to deterioration and fragmentation of habitats, which threatens the future of this taxonomic group as well as that of other groups of plants. Thus, knowledge of the biodiversity of this area is necessary for developing sound strategies for conservation, restoration, and sustainable management.
Palavras-chave : Campeche; Laguna de Términos; Mexico; orchids.