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| Format: | Artículo científico |
| Language: | en |
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Sociedad de Biología de Chile
2009
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| Online Access: | https://www.redalyc.org/articulo.oa?id=369944290010 |
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Table of Contents:
- The ecology of Egeria densa Planchon (Liliopsida: Alismatales): A wetland ecosystem engineer? MATTHEW YARROW VÍCTOR H. MARÍN MAX FINLAYSON ANTONIO TIRONI LUISA E. DELGADO FERNANDA FISCHER Biología Egeria densa invasive species ecosystem engineer Egeria densa Planchon is considered an invasive species in continental aquatic systems in Chile. Its original geographical distribution was limited to the subtropical regions of Brazil, Argentina and Uruguay. Its fast growth and dense canopy-forming habit are associated with the clear water state of shallow water continental ecosystems. As a dominant species in many of the systems in which it occurs, E. densa behaves as an ecosystem engineer by preventing the re-suspension of sediments and controlling the growth of phytoplankton by removing nutrients from the water column. At the same time, this invasive species produces unwanted effects such as: (1) clogging waterways and hydroelectric turbines, (2) out-competing native vegetation, and (3) negatively affecting the sediment seed bank. Given its importance in the recent (2004) change of state of the Río Cruces wetland, Chile, we felt it appropriate to undertake a comprehensive literature review of this species. We conclude by discussing the role of E. densa as an ecosystem engineer while cautioning against the impression that E. densa is always a highly competitive invader. 2009 artículo científico 0716-078X https://www.redalyc.org/articulo.oa?id=369944290010 en http://www.redalyc.org/revista.oa?id=3699 Revista Chilena de Historia Natural application/pdf Sociedad de Biología de Chile Revista Chilena de Historia Natural (Chile) Num.2 Vol.82