Abstract

BEJARANO MORA, PATRICIA ANDREA  and  BONILLA, MARÍA ARGENIS. Dynamics Space Temporary Juan Amarillo WetlandBetween 1950-2005. Acta biol.Colomb. [online]. 2009, vol.14, n.1, pp.89-108. ISSN 0120-548X.

The dynamics of Juan Amarillos’ wetland were analyzed during 55 year between 1950 and 2005. The results showed that the landscape configuration of the ecosystems has dramatically changed within a trend to increase in number, size, and patch type. Likewise, important structural differences came up between the various periods in question; such differences appear to be related to the reduction and disappearance of the pond and the significant increase of the non native kikuyo grass (Pennisetum clandestinum). Regarding the spatial arrangement of the landscape elements, there were no significant changes in spatial distribution patterns. According to the fractal dimension and complexity, the landscape elements showed two trends: non native and man-made elements are more complex in shape, whereas native elements showed more regular shapes. Finally, the wetland dynamics were modelled with the aim of construing how the multiple interactions of the landscape elements have influenced the wetland configuration over time.

Keywords : Juan Amarillo Wetland; structure; composition; fractal dimension.

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