NDLI: Seasonal dynamics of the structure of epiphytic algal community on different substrates from a Neotropical floodplain

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Taxonomic and ultrastructural survey of Trachelomonas (Euglenophyceae) of a shallow subtropical reservoir in the municipality of Triunfo, southern Brazil

The pollination biology of Pseudostifftia kingii H.Rob. (Asteraceae), a rare endemic Brazilian species with uniflorous capitula

Brazilian Journal of Botany : Volume 36, Issue 2, June 2013

Brazilian Journal of Botany : Volume 36, Issue 1, March 2013

Seasonal dynamics of the structure of epiphytic algal community on different substrates from a Neotropical floodplain

Content Provider	Springer Nature Link
Author	Rodrigues, Liliana Lima Behrend, Rômulo Diego Neif, Érika Maria
Copyright Year	2013
Abstract	This study aimed at analyzing the structure of epiphytic algal community on aquatic macrophytes morphologically different and in distinct hydrological periods at a lentic environment (Pombas Lake) located in the Upper Paraná River floodplain. In this study we tested the hypothesis that epiphyton richness, diversity, density, and composition, associated with submerged macrophytes are affected by hydrological dynamics and by habitat heterogeneity. The macrophytes used as substrates were Eichhornia azurea Kunth, an emergent macrophyte, and Egeria najas Planch, a submerged macrophyte. The samplings were performed quarterly in 2009, the species richness, diversity, density, and composition of the epiphytic algal community were evaluated. The species richness was not different between the substrates. Regardless of the evaluated substrate, the month of March had the highest species richness and diversity, especially of Desmids and Chlorophyceae. E. najas recorded the greater variation in abundance, compared with E. azurea. Bacillariophyceae, independent of the period and substrate, represented over 50 % of total density. The species composition was different among the periods, in which March and June (low water) were more similar and formed the group I, while September and December (high water) formed the group II. In summary, the hypothesis was accepted, since we verified that the hydrological dynamics of the floodplain is the direct controlling factor on structure of epiphytic algal community, and the substrate heterogeneity is the indirect controlling factor.
Starting Page	169
Ending Page	177
Page Count	9
File Format	PDF
ISSN	01008404
Journal	Brazilian Journal of Botany
Volume Number	36
Issue Number	3
e-ISSN	18069959
Language	English
Publisher	Springer International Publishing
Publisher Date	2013-11-02
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Substrate Community structure Plant Systematics/Taxonomy/Biogeography Epiphyton Heterogeneity spatial Hydrodynamics
Content Type	Text
Resource Type	Article
Subject	Plant Science

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