Macro-scale (biomes) differences in neotropical stream processes and community structure

Detalhes bibliográficos
Autor(a) principal: Feio, Maria João
Data de Publicação: 2018
Outros Autores: Leite, Gustavo Figueiredo Marques, Rezende, Renan S., Medeiros, Adriana Oliveira, Cruz, Lorena C., Dahora, Juliana AS, Calor, Adolfo Ricardo, Neres-Lima, Vinicius, Silva-Araújo, Monalisa, Callisto, Marcos, França, Juliana Silva, Martins, Isabela, Moretti, Marcelo S., Rangel, Juliana Vieira, Petrucio, Maurício Mello Mello, Lemes-Silva, Aurea Luiza, Martins, Renato Tavares, Dias-Silva, Karina, Dantas, Galileu Petronilo da Silva, Moretto, Yara, Gonçalves, José Francisco Júnior
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional do INPA
Texto Completo: https://repositorio.inpa.gov.br/handle/1/15607
Resumo: The definition of conservation strategies and ecological assessment schemes requires understanding ecosystem patterns over multiple spatial scales. This study aimed to determine if macro-scale structural and functional (processes) patterns associated with stream ecosystems differed among three neotropical biomes (Cerrado, Amazon, Atlantic Forest). We compared the aquatic communities (benthic invertebrates and hyphomycetes) and processes (decomposition rates, primary production and biofilms growth and aquatic hyphomycetes reproduction rates-sporulation) of Cerrado stream sites (neotropical savannah) against those of stream sites in the connecting biomes of the Atlantic Forest and Amazon (rainforests). We expected that, contrary to the biome dependency hypothesis the community structure and processes rates of streams at the biome-scale would not differ significantly, because those ecosystems are strongly influenced by their dense riparian forests, which have a transitional character among the three biomes. Fifty-three stream sites were selected covering a wide range of geographic locations (Table 1), from near the Equator (2° S) in the Amazon, to intermediate latitudes in the Cerrado (12-19° S), and latitudes closer to the tropic of Capricorn in the Atlantic Forest (19º-25° S). We found that: 1) at the abiotic level, the aquatic ecosystems of the three biomes differed, which was mostly explained by large-scale factors such as temperature, precipitation and altitude; 2) functional and structural variables did not behave similarly among biomes: decomposition and sporulation rates showed larger differences among biomes than invertebrate and aquatic hyphomycete assemblages structure; 3) invertebrate assemblages structure differed between the rainforests and Cerrado but not between rainforests (Amazon and Atlantic Forest) whereas aquatic hyphomycetes were similar among all biomes; 4) biofilm growth and algae concentration in biofilms of artificial substrates were highly variable within biomes and not significantly different between biomes. Overall, aquatic ecosystem processes and community structure differed across biomes, being influenced by climatic variables, but the variation is not as pronounced as that described for terrestrial systems. Considering the potential use of these functional and structural indicators in national-wide ecological assessments, our results indicate the need to define different reference values for different biomes, depending on the variable used. The approach followed in this study allowed an integrative analysis and comparison of the stream ecosystems across three tropical biomes, being the first study of this kind. Future studies should try to confirm the patterns evidenced here with more sites from other areas of the three biomes, and especially from the Amazon, which was the least represented biome in our investigation. © 2018
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spelling Feio, Maria JoãoLeite, Gustavo Figueiredo MarquesRezende, Renan S.Medeiros, Adriana OliveiraCruz, Lorena C.Dahora, Juliana ASCalor, Adolfo RicardoNeres-Lima, ViniciusSilva-Araújo, MonalisaCallisto, MarcosFrança, Juliana SilvaMartins, IsabelaMoretti, Marcelo S.Rangel, Juliana VieiraPetrucio, Maurício Mello MelloLemes-Silva, Aurea LuizaMartins, Renato TavaresDias-Silva, KarinaDantas, Galileu Petronilo da SilvaMoretto, YaraGonçalves, José Francisco Júnior2020-05-15T14:59:44Z2020-05-15T14:59:44Z2018https://repositorio.inpa.gov.br/handle/1/1560710.1016/j.gecco.2018.e00498The definition of conservation strategies and ecological assessment schemes requires understanding ecosystem patterns over multiple spatial scales. This study aimed to determine if macro-scale structural and functional (processes) patterns associated with stream ecosystems differed among three neotropical biomes (Cerrado, Amazon, Atlantic Forest). We compared the aquatic communities (benthic invertebrates and hyphomycetes) and processes (decomposition rates, primary production and biofilms growth and aquatic hyphomycetes reproduction rates-sporulation) of Cerrado stream sites (neotropical savannah) against those of stream sites in the connecting biomes of the Atlantic Forest and Amazon (rainforests). We expected that, contrary to the biome dependency hypothesis the community structure and processes rates of streams at the biome-scale would not differ significantly, because those ecosystems are strongly influenced by their dense riparian forests, which have a transitional character among the three biomes. Fifty-three stream sites were selected covering a wide range of geographic locations (Table 1), from near the Equator (2° S) in the Amazon, to intermediate latitudes in the Cerrado (12-19° S), and latitudes closer to the tropic of Capricorn in the Atlantic Forest (19º-25° S). We found that: 1) at the abiotic level, the aquatic ecosystems of the three biomes differed, which was mostly explained by large-scale factors such as temperature, precipitation and altitude; 2) functional and structural variables did not behave similarly among biomes: decomposition and sporulation rates showed larger differences among biomes than invertebrate and aquatic hyphomycete assemblages structure; 3) invertebrate assemblages structure differed between the rainforests and Cerrado but not between rainforests (Amazon and Atlantic Forest) whereas aquatic hyphomycetes were similar among all biomes; 4) biofilm growth and algae concentration in biofilms of artificial substrates were highly variable within biomes and not significantly different between biomes. Overall, aquatic ecosystem processes and community structure differed across biomes, being influenced by climatic variables, but the variation is not as pronounced as that described for terrestrial systems. Considering the potential use of these functional and structural indicators in national-wide ecological assessments, our results indicate the need to define different reference values for different biomes, depending on the variable used. The approach followed in this study allowed an integrative analysis and comparison of the stream ecosystems across three tropical biomes, being the first study of this kind. Future studies should try to confirm the patterns evidenced here with more sites from other areas of the three biomes, and especially from the Amazon, which was the least represented biome in our investigation. © 2018Volume 16Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessMacro-scale (biomes) differences in neotropical stream processes and community structureinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGlobal Ecology and Conservationengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf934254https://repositorio.inpa.gov.br/bitstream/1/15607/1/artigo-inpa.pdfdc64f2120b4b338336f1d2eb9403308eMD511/156072020-05-15 11:54:15.656oai:repositorio:1/15607Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-05-15T15:54:15Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.en.fl_str_mv Macro-scale (biomes) differences in neotropical stream processes and community structure
title Macro-scale (biomes) differences in neotropical stream processes and community structure
spellingShingle Macro-scale (biomes) differences in neotropical stream processes and community structure
Feio, Maria João
title_short Macro-scale (biomes) differences in neotropical stream processes and community structure
title_full Macro-scale (biomes) differences in neotropical stream processes and community structure
title_fullStr Macro-scale (biomes) differences in neotropical stream processes and community structure
title_full_unstemmed Macro-scale (biomes) differences in neotropical stream processes and community structure
title_sort Macro-scale (biomes) differences in neotropical stream processes and community structure
author Feio, Maria João
author_facet Feio, Maria João
Leite, Gustavo Figueiredo Marques
Rezende, Renan S.
Medeiros, Adriana Oliveira
Cruz, Lorena C.
Dahora, Juliana AS
Calor, Adolfo Ricardo
Neres-Lima, Vinicius
Silva-Araújo, Monalisa
Callisto, Marcos
França, Juliana Silva
Martins, Isabela
Moretti, Marcelo S.
Rangel, Juliana Vieira
Petrucio, Maurício Mello Mello
Lemes-Silva, Aurea Luiza
Martins, Renato Tavares
Dias-Silva, Karina
Dantas, Galileu Petronilo da Silva
Moretto, Yara
Gonçalves, José Francisco Júnior
author_role author
author2 Leite, Gustavo Figueiredo Marques
Rezende, Renan S.
Medeiros, Adriana Oliveira
Cruz, Lorena C.
Dahora, Juliana AS
Calor, Adolfo Ricardo
Neres-Lima, Vinicius
Silva-Araújo, Monalisa
Callisto, Marcos
França, Juliana Silva
Martins, Isabela
Moretti, Marcelo S.
Rangel, Juliana Vieira
Petrucio, Maurício Mello Mello
Lemes-Silva, Aurea Luiza
Martins, Renato Tavares
Dias-Silva, Karina
Dantas, Galileu Petronilo da Silva
Moretto, Yara
Gonçalves, José Francisco Júnior
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Feio, Maria João
Leite, Gustavo Figueiredo Marques
Rezende, Renan S.
Medeiros, Adriana Oliveira
Cruz, Lorena C.
Dahora, Juliana AS
Calor, Adolfo Ricardo
Neres-Lima, Vinicius
Silva-Araújo, Monalisa
Callisto, Marcos
França, Juliana Silva
Martins, Isabela
Moretti, Marcelo S.
Rangel, Juliana Vieira
Petrucio, Maurício Mello Mello
Lemes-Silva, Aurea Luiza
Martins, Renato Tavares
Dias-Silva, Karina
Dantas, Galileu Petronilo da Silva
Moretto, Yara
Gonçalves, José Francisco Júnior
description The definition of conservation strategies and ecological assessment schemes requires understanding ecosystem patterns over multiple spatial scales. This study aimed to determine if macro-scale structural and functional (processes) patterns associated with stream ecosystems differed among three neotropical biomes (Cerrado, Amazon, Atlantic Forest). We compared the aquatic communities (benthic invertebrates and hyphomycetes) and processes (decomposition rates, primary production and biofilms growth and aquatic hyphomycetes reproduction rates-sporulation) of Cerrado stream sites (neotropical savannah) against those of stream sites in the connecting biomes of the Atlantic Forest and Amazon (rainforests). We expected that, contrary to the biome dependency hypothesis the community structure and processes rates of streams at the biome-scale would not differ significantly, because those ecosystems are strongly influenced by their dense riparian forests, which have a transitional character among the three biomes. Fifty-three stream sites were selected covering a wide range of geographic locations (Table 1), from near the Equator (2° S) in the Amazon, to intermediate latitudes in the Cerrado (12-19° S), and latitudes closer to the tropic of Capricorn in the Atlantic Forest (19º-25° S). We found that: 1) at the abiotic level, the aquatic ecosystems of the three biomes differed, which was mostly explained by large-scale factors such as temperature, precipitation and altitude; 2) functional and structural variables did not behave similarly among biomes: decomposition and sporulation rates showed larger differences among biomes than invertebrate and aquatic hyphomycete assemblages structure; 3) invertebrate assemblages structure differed between the rainforests and Cerrado but not between rainforests (Amazon and Atlantic Forest) whereas aquatic hyphomycetes were similar among all biomes; 4) biofilm growth and algae concentration in biofilms of artificial substrates were highly variable within biomes and not significantly different between biomes. Overall, aquatic ecosystem processes and community structure differed across biomes, being influenced by climatic variables, but the variation is not as pronounced as that described for terrestrial systems. Considering the potential use of these functional and structural indicators in national-wide ecological assessments, our results indicate the need to define different reference values for different biomes, depending on the variable used. The approach followed in this study allowed an integrative analysis and comparison of the stream ecosystems across three tropical biomes, being the first study of this kind. Future studies should try to confirm the patterns evidenced here with more sites from other areas of the three biomes, and especially from the Amazon, which was the least represented biome in our investigation. © 2018
publishDate 2018
dc.date.issued.fl_str_mv 2018
dc.date.accessioned.fl_str_mv 2020-05-15T14:59:44Z
dc.date.available.fl_str_mv 2020-05-15T14:59:44Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://repositorio.inpa.gov.br/handle/1/15607
dc.identifier.doi.none.fl_str_mv 10.1016/j.gecco.2018.e00498
url https://repositorio.inpa.gov.br/handle/1/15607
identifier_str_mv 10.1016/j.gecco.2018.e00498
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Volume 16
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
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eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Global Ecology and Conservation
publisher.none.fl_str_mv Global Ecology and Conservation
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