Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/7812
Título: Habitat specificity of a threatened and endemic cliff-dwelling halophyte
Autor: Caperta, Ana
Espírito Santo, M.D.
Silva, Vasco
Ferreira, Ana
Paes, Ana P.
Róis, Ana S.
Costa, José Carlos
Arsénio, Pedro
Palavras-chave: agamospermic species
cliff-dwelling species
habitat specificity
Data: 2014
Editora: Oxford University Press
Citação: Caperta AD, Espırito-Santo MD, Silva V, Ferreira A, Paes AP, Rois AS, Costa JC, Arsenio P. 2014. Habitat specificity of a threatened and endemic, cliff-dwelling halophyte. AoB PLANTS 6: plu032; doi:10.1093/aobpla/plu032
Resumo: Coastal areas and other saline environments are major contributors to regional and global biodiversity patterns. In these environments, rapidly changing gradients require highly specialized plants like halophytes. In European coastal cliff-tops, rocky and sandy seashores, and saltmarshes, typical halophytes from the genus Limonium are commonly found. Among them, the aneuploid tetraploid (2n ¼ 4x ¼ 35, 36, 37) Limonium multiflorum, endemic to the west coast of Portugal, is an interesting case study for investigating the ecology and conservation of a halophyte agamospermic species. Although it is listed in the IUCN red list of threatened species, information on its population size or rarity, as well as its ecology, in some respects is still unknown. Field surveys in the largest known population were performed (Raso cape, Portugal) in order to determine habitat requirements and conservation status. A total of 88 quadrats were monitored, 43 of which contained at least one L. multiflorum individual. For each sampled quadrat, four abiotic and four biotic variables as well as two spatially derived variables were recorded. Principal component analysis and cluster analysis showed narrow habitat specificity for this species which appeared to be intolerant to competition with invasive alien plants. We conclude that in situ conservation in a local ‘hotspot’ of this rare and vulnerable species emerges as a priority in order to ensure that biodiversity is not lost
Descrição: Research Article
Peer review: yes
URI: http://hdl.handle.net/10400.5/7812
DOI: doi:10.1093/aobpla/plu032
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