NDLI: Effects of hydrological variation on the aquatic plant community in a floodplain palustrine wetland of southern Brazil

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Effects of hydrological variation on the aquatic plant community in a floodplain palustrine wetland of southern Brazil

Content Provider	Springer Nature Link
Author	Maltchik, Leonardo Rolon, Ana Silvia Schott, Patrícia
Copyright Year	2007
Abstract	This study analyzed macrophyte richness, biomass, and composition under flooding of brief duration (less than 3 days) and drawdown events over an annual cycle in a floodplain palustrine wetland in the south of Brazil. The study was carried out to test the hypothesis that floods of brief and very brief duration are not long enough to compromise the richness and the biomass of aquatic macrophytes and that the alternation between wet and drawdown phases may cause variations in the macrophyte richness and composition. A total of 26 aquatic macrophyte species were observed from April 2003 to May 2004: 13 species were observed during the wet phase, and 24 during the drawdown phase. The mean richness was higher during the drawdown phase than during the wet phase, however, the mean biomass was similar in both phases. Although macrophyte richness was not modified after the three flooding events, mean biomass was modified after two events. The number of macrophyte species of which the biomass was modified after the first flooding event increased with subsequent floods. These results illustrate the importance of the dynamics between brief floods and drawdown events to the aquatic plant community in floodplain wetlands in southern Brazil.
Starting Page	23
Ending Page	28
Page Count	6
File Format	PDF
ISSN	14398621
Journal	Limnology
Volume Number	8
Issue Number	1
e-ISSN	1439863X
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-01-30
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Drawdown Flood Macrophyte Neotropical region Wetland Ecology Environment Hydrobiology
Content Type	Text
Resource Type	Article
Subject	Ecology Aquatic Science Water Science and Technology

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