Functional niche differences between native and invasive tree species from the southern Brazilian mixed forest
Título del documento: Functional niche differences between native and invasive tree species from the southern Brazilian mixed forest
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000435889
ISSN: 0001-3765
Autores: 1
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Instituciones: 1Universidade do Estado de Santa Catarina, Departamento de Engenharia Florestal, Lages, Santa Catarina. Brasil
Año:
Volumen: 92
Número: 3
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Biological invasion is a major threat to global biodiversity and ecosystem services. We examined the functional traits similarity between a set of native and non-native invasive tree species from the Southern Brazilian subtropical mixed forest, part of an important global hotspot for biodiversity conservation. We hypothesized that invasive species occupy marginal niche spaces. We ordered the species using the Principal Component Analysis based on their wood density, leaf area, and specific leaf area. These are all important traits that summarize essential ecological strategies associated with resource acquisition and conservation. Functional overlaps between non-native and native species were analyzed through kernel density estimation of continuous traits data. While native and non-native invasive species were distributed along the same functional gradients, the position of non-native species in the functional space is species and traits specific. We concluded that within Brazilian subtropical mixed forests, the functional dissimilarity as a key factor in invasion success could not be generalized for all species and traits
Disciplinas: Biología
Palabras clave: Botánica,
Ecología,
Arboles,
Nicho ecológico,
Especies invasoras,
Competencia interespecífica,
Sobreposición del nicho,
Bosque de Araucaria
Keyword: Botany,
Ecology,
Trees,
Ecological niche,
Invasive species,
Interspecific competition,
Niche overlap,
Araucaria forest
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