Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approach
The present study evaluated the predation effects of the gastropod Melanoides tuberculatus on the taxa richness and density of the periphyton community. A laboratory experiment was conducted with two treatments: control (without M. tuberculatus) and with M. tuberculatus, each treatment being replicated four times. For periphyton colonization, glass slides were placed in 3.5 L of water from the environment of the gastropods. The analysis of species richness and density of the periphyton community on these artificial substrates showed significant differences (p <0.05) between treatments. In the treatment with M. tuberculatus, taxa richness and density were lower, with a predominance of Chantrasia macrospora in the last days of the experiment. It follows that predation by M. tuberculatus destabilizes the course of periphyton colonization, suggesting the possibility of disruption of natural food chains, however, more studies are needed in this perspectives.
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Instituto Virtual da Biodiversidade | BIOTA - FAPESP
2013
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oai:scielo:S1676-060320130002000962015-11-25Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approachVasconcelos,Janiele FrançaBarbosa,José Etham de LucenaAzevêdo,Evaldo de LiraAzevêdo,Daniele Jovem da SilvaAnacleto,Maria José Pinheiro invasive species herbivory laboratory experiment Melanoides tuberculatus periphyton The present study evaluated the predation effects of the gastropod Melanoides tuberculatus on the taxa richness and density of the periphyton community. A laboratory experiment was conducted with two treatments: control (without M. tuberculatus) and with M. tuberculatus, each treatment being replicated four times. For periphyton colonization, glass slides were placed in 3.5 L of water from the environment of the gastropods. The analysis of species richness and density of the periphyton community on these artificial substrates showed significant differences (p <0.05) between treatments. In the treatment with M. tuberculatus, taxa richness and density were lower, with a predominance of Chantrasia macrospora in the last days of the experiment. It follows that predation by M. tuberculatus destabilizes the course of periphyton colonization, suggesting the possibility of disruption of natural food chains, however, more studies are needed in this perspectives.info:eu-repo/semantics/openAccessInstituto Virtual da Biodiversidade | BIOTA - FAPESPBiota Neotropica v.13 n.2 20132013-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200096en10.1590/S1676-06032013000200010 |
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Vasconcelos,Janiele França Barbosa,José Etham de Lucena Azevêdo,Evaldo de Lira Azevêdo,Daniele Jovem da Silva Anacleto,Maria José Pinheiro |
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Vasconcelos,Janiele França Barbosa,José Etham de Lucena Azevêdo,Evaldo de Lira Azevêdo,Daniele Jovem da Silva Anacleto,Maria José Pinheiro Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approach |
author_facet |
Vasconcelos,Janiele França Barbosa,José Etham de Lucena Azevêdo,Evaldo de Lira Azevêdo,Daniele Jovem da Silva Anacleto,Maria José Pinheiro |
author_sort |
Vasconcelos,Janiele França |
title |
Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approach |
title_short |
Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approach |
title_full |
Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approach |
title_fullStr |
Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approach |
title_full_unstemmed |
Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approach |
title_sort |
predation effects of melanoides tuberculatus müller 1774) on periphytic biofilm colonization: an experimental approach |
description |
The present study evaluated the predation effects of the gastropod Melanoides tuberculatus on the taxa richness and density of the periphyton community. A laboratory experiment was conducted with two treatments: control (without M. tuberculatus) and with M. tuberculatus, each treatment being replicated four times. For periphyton colonization, glass slides were placed in 3.5 L of water from the environment of the gastropods. The analysis of species richness and density of the periphyton community on these artificial substrates showed significant differences (p <0.05) between treatments. In the treatment with M. tuberculatus, taxa richness and density were lower, with a predominance of Chantrasia macrospora in the last days of the experiment. It follows that predation by M. tuberculatus destabilizes the course of periphyton colonization, suggesting the possibility of disruption of natural food chains, however, more studies are needed in this perspectives. |
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Instituto Virtual da Biodiversidade | BIOTA - FAPESP |
publishDate |
2013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200096 |
work_keys_str_mv |
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