Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone

Detalhes bibliográficos
Autor(a) principal: Souza,Shayanna M. A. da R.
Data de Publicação: 2020
Outros Autores: Matthews-Cascon,Helena, Couto,Erminda da C. G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Iheringia. Série Zoologia
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100227
Resumo: ABSTRACT We investigated the spatial variation of molluscan assemblages with different habitat-forming species and bare rock habitat in a rocky intertidal zone in northeastern Brazil. The high intertidal zone substrate was covered predominantly of barnacles [Chthamalus bisinuatus (Pilsbry, 1916)], the mid-intertidal of mussels [Brachidontes exustus (Linnaeus, 1758)] and the low intertidal of macroalgae chlorophytes [Gayralia oxysperma (Kützing) K. L. Vinogradova ex Scagel et al., 1989 and Ulva lactuca Linnaeus, 1753], phaeophytes [Sargassum vulgare C. Agardh] and rhodophytes [Palisada flagellifera (J.Agardh) K. W. Nam, 2007]. A total of 3,861 mollusks were recorded, belonging to the classes Gastropoda (9 species; 3,800 individuals), Bivalvia (3 spp.; 54 ind.), and Polyplacophora (1 sp.; 7 ind.). Functional diversity was accessed through the trophic structure, in which we identified food guilds: suspension feeders, grazers, herbivores, and carnivores. The analysis revealed significant differences in mollusk abundance, species richness, diversity indices, and trophic diversity among barnacle belts, mussel beds, algae habitat, and bare rock habitats. The highest species richness and trophic diversity were detected in algae habitat and mussel beds, which showed low abundance. In contrast, barnacle belts registered low species richness and trophic diversity and a high number of individuals. Bare rock recorded low values in all surveyed indices. This result points to the effect of environmental modification caused by habitat-forming species in this system. These species increase environmental complexity and enable the establishment of organisms through facilitation processes. The various food guilds found in this study reaffirm the role of habitat-forming species in providing niches that support different occupation patterns.
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spelling Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zoneTrophic groupsbenthic ecologyecosystem engineersbiological substratesouthwestern AtlanticABSTRACT We investigated the spatial variation of molluscan assemblages with different habitat-forming species and bare rock habitat in a rocky intertidal zone in northeastern Brazil. The high intertidal zone substrate was covered predominantly of barnacles [Chthamalus bisinuatus (Pilsbry, 1916)], the mid-intertidal of mussels [Brachidontes exustus (Linnaeus, 1758)] and the low intertidal of macroalgae chlorophytes [Gayralia oxysperma (Kützing) K. L. Vinogradova ex Scagel et al., 1989 and Ulva lactuca Linnaeus, 1753], phaeophytes [Sargassum vulgare C. Agardh] and rhodophytes [Palisada flagellifera (J.Agardh) K. W. Nam, 2007]. A total of 3,861 mollusks were recorded, belonging to the classes Gastropoda (9 species; 3,800 individuals), Bivalvia (3 spp.; 54 ind.), and Polyplacophora (1 sp.; 7 ind.). Functional diversity was accessed through the trophic structure, in which we identified food guilds: suspension feeders, grazers, herbivores, and carnivores. The analysis revealed significant differences in mollusk abundance, species richness, diversity indices, and trophic diversity among barnacle belts, mussel beds, algae habitat, and bare rock habitats. The highest species richness and trophic diversity were detected in algae habitat and mussel beds, which showed low abundance. In contrast, barnacle belts registered low species richness and trophic diversity and a high number of individuals. Bare rock recorded low values in all surveyed indices. This result points to the effect of environmental modification caused by habitat-forming species in this system. These species increase environmental complexity and enable the establishment of organisms through facilitation processes. The various food guilds found in this study reaffirm the role of habitat-forming species in providing niches that support different occupation patterns.Museu de Ciências Naturais2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100227Iheringia. Série Zoologia v.110 2020reponame:Iheringia. Série Zoologiainstname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)instacron:FZB/RS10.1590/1678-4766e2020027info:eu-repo/semantics/openAccessSouza,Shayanna M. A. da R.Matthews-Cascon,HelenaCouto,Erminda da C. G.eng2020-12-01T00:00:00Zoai:scielo:S0073-47212020000100227Revistahttp://www.scielo.br/iszPUBhttps://old.scielo.br/oai/scielo-oai.php||iheringia-zoo@fzb.rs.gov.br1678-47660073-4721opendoar:2020-12-01T00:00Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)false
dc.title.none.fl_str_mv Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
title Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
spellingShingle Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
Souza,Shayanna M. A. da R.
Trophic groups
benthic ecology
ecosystem engineers
biological substrate
southwestern Atlantic
title_short Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
title_full Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
title_fullStr Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
title_full_unstemmed Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
title_sort Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
author Souza,Shayanna M. A. da R.
author_facet Souza,Shayanna M. A. da R.
Matthews-Cascon,Helena
Couto,Erminda da C. G.
author_role author
author2 Matthews-Cascon,Helena
Couto,Erminda da C. G.
author2_role author
author
dc.contributor.author.fl_str_mv Souza,Shayanna M. A. da R.
Matthews-Cascon,Helena
Couto,Erminda da C. G.
dc.subject.por.fl_str_mv Trophic groups
benthic ecology
ecosystem engineers
biological substrate
southwestern Atlantic
topic Trophic groups
benthic ecology
ecosystem engineers
biological substrate
southwestern Atlantic
description ABSTRACT We investigated the spatial variation of molluscan assemblages with different habitat-forming species and bare rock habitat in a rocky intertidal zone in northeastern Brazil. The high intertidal zone substrate was covered predominantly of barnacles [Chthamalus bisinuatus (Pilsbry, 1916)], the mid-intertidal of mussels [Brachidontes exustus (Linnaeus, 1758)] and the low intertidal of macroalgae chlorophytes [Gayralia oxysperma (Kützing) K. L. Vinogradova ex Scagel et al., 1989 and Ulva lactuca Linnaeus, 1753], phaeophytes [Sargassum vulgare C. Agardh] and rhodophytes [Palisada flagellifera (J.Agardh) K. W. Nam, 2007]. A total of 3,861 mollusks were recorded, belonging to the classes Gastropoda (9 species; 3,800 individuals), Bivalvia (3 spp.; 54 ind.), and Polyplacophora (1 sp.; 7 ind.). Functional diversity was accessed through the trophic structure, in which we identified food guilds: suspension feeders, grazers, herbivores, and carnivores. The analysis revealed significant differences in mollusk abundance, species richness, diversity indices, and trophic diversity among barnacle belts, mussel beds, algae habitat, and bare rock habitats. The highest species richness and trophic diversity were detected in algae habitat and mussel beds, which showed low abundance. In contrast, barnacle belts registered low species richness and trophic diversity and a high number of individuals. Bare rock recorded low values in all surveyed indices. This result points to the effect of environmental modification caused by habitat-forming species in this system. These species increase environmental complexity and enable the establishment of organisms through facilitation processes. The various food guilds found in this study reaffirm the role of habitat-forming species in providing niches that support different occupation patterns.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-4766e2020027
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dc.publisher.none.fl_str_mv Museu de Ciências Naturais
publisher.none.fl_str_mv Museu de Ciências Naturais
dc.source.none.fl_str_mv Iheringia. Série Zoologia v.110 2020
reponame:Iheringia. Série Zoologia
instname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
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instname_str Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
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reponame_str Iheringia. Série Zoologia
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repository.name.fl_str_mv Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
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