2009
DOI: 10.1590/s1519-69842009000300016
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Abstract: Although the importance of long-term data has been emphasized by ecologists in recent years, little is known about how communities may change over time. In this study, we describe the general patterns of aquatic macrophyte diversity in the Paraná River floodplain observed during six years of study. Temporal changes in community composition were also evaluated. Data on the presence or absence of aquatic macrophytes were collected between March 2002 and March 2008, in six lakes associated with three rivers. Diff… Show more

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Cited by 76 publications
(57 citation statements)
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“…For example, the increase and dominance of rooted submersed macrophytes (e.g., Egeria najas Planch. and Hydrilla verticillata (L.f.) Royle) are observed mainly in the Paraná main channel and its associated habitats, and are due to the higher water transparency of these habitats (Thomaz et al, 2009). Similarly, the increase of peacock bass (Cichla kelberi Kullander and Ferreira, 2006) in the Paraná River may be explained by higher water transparency in this river, what has been shown for other Neotropical ecosystems (e.g., Fugi et al, 2008).…”
Section: Spatial Patternsmentioning
confidence: 67%
“…For example, the increase and dominance of rooted submersed macrophytes (e.g., Egeria najas Planch. and Hydrilla verticillata (L.f.) Royle) are observed mainly in the Paraná main channel and its associated habitats, and are due to the higher water transparency of these habitats (Thomaz et al, 2009). Similarly, the increase of peacock bass (Cichla kelberi Kullander and Ferreira, 2006) in the Paraná River may be explained by higher water transparency in this river, what has been shown for other Neotropical ecosystems (e.g., Fugi et al, 2008).…”
Section: Spatial Patternsmentioning
confidence: 67%
“…As a further result, these events reduce the primary productivity of phytoplankton (Train and Rodrigues, 1998;Rodrigues et al, 2002) and of submerged macrophytes (Padial and Thomaz, 2008;Thomaz et al, 2009), affecting the abundance and composition of the plankton (Velho et al, 2001;Ortlepp and Mürle, 2003) and the periphyton (Bielsa et al, 2003;Murakami et al, 2009). Thus, although the floods increase the availability of allochthonous food items from the flooded areas and drift, they reduce the autochtonous food supply.…”
Section: Discussionmentioning
confidence: 99%
“…dominance of free floating communities and floating mats in the littoral zone can explain the lack of rooted submerged communities in the ZFLC. Similar conditions were also reported for certain floodplain lakes in the San Jorge River of Colombia (Rangel-Ch., 2010), and the Upper Paraná River Thomaz et al, 2009). Another life form directly avoiding the ZFLC are the rooted floating leaved plants.…”
Section: Discussionmentioning
confidence: 99%