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Multequina

versão On-line ISSN 1852-7329

Resumo

TORRESIN, Jerónimo A. et al. Spatial distribution modeling for invasive exotic trees in the Pre-Delta National Park (Entre Ríos, Argentina). Multequina [online]. 2013, vol.22, n.1, pp.3-13. ISSN 1852-7329.

Spatial distribution of alien trees was studied on Pre-Delta National Park (PNPD-Entre Ríos, Argentina), by distance sampling techniques. Potential distribution was modelled by Kriging interpolation technique. Generated maps were overlapped with PNPD zonification map and environmental units map. We recorded forest structural data, tree phenology and tree control management actions, in order to characterize the processes of invasion. We obtained maps of potential distribution of Melia azedrach, Broussonetia papyrifera, Ligustrum lucidum, Brachychiton populneus, Fraxinus sp. and Morus alba L. The latter was the dominant species in all studied sectors (cliffs, islands and highlands). As for the management actions carried out with trees of the PNPD, about 50% of the specimens of M. alba subjected to mechanical control (banding technique) showed regrowth, indicating its high survival capacity.

Palavras-chave : Distance sampling; Kriging; Biological invasions; Wetlands.

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