Damming water influences the structure, composition and functions of adjacent savannahs

Dams are important to human wellbeing; however, they can cause various environmental changes. In the cerrado stricto sensu, waters from the reservoir modify water supply in the soil and can affect species establishment. It is argued that species adapted to high water availability can establish close...

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Main Authors: Santiago do Vale, Vagner, de Oliveira, Ana Paula, do Prado-Junior, Jamir Afonso, Ribeiro Londe, Patrícia, Nascimento, Diego Raymundo
Format: Online
Sprog:eng
Udgivet: Instituto de Ecología, A.C. 2017
Online adgang:https://myb.ojs.inecol.mx/index.php/myb/article/view/1527
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author Santiago do Vale, Vagner
de Oliveira, Ana Paula
do Prado-Junior, Jamir Afonso
Ribeiro Londe, Patrícia
Nascimento, Diego Raymundo
author_facet Santiago do Vale, Vagner
de Oliveira, Ana Paula
do Prado-Junior, Jamir Afonso
Ribeiro Londe, Patrícia
Nascimento, Diego Raymundo
author_sort Santiago do Vale, Vagner
collection MYB
description Dams are important to human wellbeing; however, they can cause various environmental changes. In the cerrado stricto sensu, waters from the reservoir modify water supply in the soil and can affect species establishment. It is argued that species adapted to high water availability can establish close to river banks and water reservoirs and their characteristics are different from those of species from the cerrado stricto sensu. These characteristics could be more similar to those of species from riparian forests, with higher values of height and basal area. Thus, we aim to analyze changes in an area of the cerrado stricto sensu, 35 years after the construction of a hydroelectric dam. We tested different parameters to determine these changes, including richness, diversity, individual height and basal area (using the square-point method), with individuals <1 m, individuals >1 m, and Bromeliaceae (using the plot method) in three sectors close to the artificial lakeshore (0 m - 20 m, 40 m - 60 m, and 80 m - 100 m away from the water). Using species diversity, we also compared the species functional group within these sectors. Sectors closer to the dam acted as an edge, presenting lower basal area and individual’s height, but species with different traits compared to those of a cerrado stricto sensu area.
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spelling oai:oai.myb.ojs.inecol.mx:article-15272022-11-29T23:11:20Z Damming water influences the structure, composition and functions of adjacent savannahs Damming water influences the structure, composition and functions of adjacent savannahs Águas represadas influenciam a estrutura, composição e funções de savanas adjacentes Santiago do Vale, Vagner de Oliveira, Ana Paula do Prado-Junior, Jamir Afonso Ribeiro Londe, Patrícia Nascimento, Diego Raymundo biomass accumulation cerrado stricto sensu tree community hydroelectric energy phytosociology functional groups functional traits Dams are important to human wellbeing however they can cause various environmental changes. In the cerrado stricto sensu waters from the reservoir modify water supply in the soil and can affect species establishment. It is argued that species adapted t acumulação de biomassa cerrado stricto sensu comunidade arbórea energia hidroelétrica fitossociologia grupos funcionais traços funcionais Dams are important to human wellbeing; however, they can cause various environmental changes. In the cerrado stricto sensu, waters from the reservoir modify water supply in the soil and can affect species establishment. It is argued that species adapted to high water availability can establish close to river banks and water reservoirs and their characteristics are different from those of species from the cerrado stricto sensu. These characteristics could be more similar to those of species from riparian forests, with higher values of height and basal area. Thus, we aim to analyze changes in an area of the cerrado stricto sensu, 35 years after the construction of a hydroelectric dam. We tested different parameters to determine these changes, including richness, diversity, individual height and basal area (using the square-point method), with individuals <1 m, individuals >1 m, and Bromeliaceae (using the plot method) in three sectors close to the artificial lakeshore (0 m - 20 m, 40 m - 60 m, and 80 m - 100 m away from the water). Using species diversity, we also compared the species functional group within these sectors. Sectors closer to the dam acted as an edge, presenting lower basal area and individual’s height, but species with different traits compared to those of a cerrado stricto sensu area. Dams are important to human wellbeing; however, they can cause various environmental changes. In the cerrado stricto sensu, waters from the reservoir modify water supply in the soil and can affect species establishment. It is argued that species adapted to high water availability can establish close to river banks and water reservoirs and their characteristics are different from those of species from the cerrado stricto sensu. These characteristics could be more similar to those of species from riparian forests, with higher values of height and basal area. Thus, we aim to analyze changes in an area of the cerrado stricto sensu, 35 years after the construction of a hydroelectric dam. We tested different parameters to determine these changes, including richness, diversity, individual height and basal area (using the square-point method), with individuals <1 m, individuals >1 m, and Bromeliaceae (using the plot method) in three sectors close to the artificial lakeshore (0 m - 20 m, 40 m - 60 m, and 80 m - 100 m away from the water). Using species diversity, we also compared the species functional group within these sectors. Sectors closer to the dam acted as an edge, presenting lower basal area and individual’s height, but species with different traits compared to those of a cerrado stricto sensu area.ResumoRepresas são importantes para o bem-estar humano, no entanto, podem causar diversas alterações nos ambientes. No cerrado stricto sensu, as águas represadas modificam o abastecimento de água no solo e podem alterar o estabelecimento das espécies. Argumenta-se que as espécies adaptadas à alta disponibilidade de água podem estabelecer-se próximo às margens de rios e reservatórios e possuem características distintas daquelas de espécies de cerrado stricto sensu. As características seriam mais semelhantes àquelas de espécies de matas ciliares, com elevada estatura e área basal. Assim, almejamos analisar as mudanças em uma área de cerrado stricto sensu após 35 anos sob a influência de uma usina hidrelétrica. Testamos parâmetros distintos para determinar essas mudanças, tais como a riqueza, a diversidade, altura dos indivíduos e área basal (utilizando o método do ponto quadrante), com indivíduos < 1 m, indivíduos > 1 m e Bromeliaceae (utilizando o método de parcelas) em três setores próximo à margem da represa (a 0 m - 20 m, 40 m - 60 m e 80 m - 100 m da represa). Utilizando a diversidade de espécies, também comparamos os grupos funcionais de espécies nesses setores. Os setores mais próximos à represa possuíam baixa área basal e altura dos indivíduos atuando como uma borda, mas com espécies com diferentes características em relação ao cerrado stricto sensu.Palavras chave: acumulação de biomassa, cerrado stricto sensu, comunidade  arbórea, energia hidroelétrica, fitossociologia, grupos funcionais, traços funcionais. Represas são importantes para o bem-estar humano, no entanto, podem causar diversas alterações nos ambientes. No cerrado stricto sensu, as águas represadas modificam o abastecimento de água no solo e podem alterar o estabelecimento das espécies. Argumenta-se que as espécies adaptadas à alta disponibilidade de água podem estabelecer-se próximo às margens de rios e reservatórios e possuem características distintas daquelas de espécies de cerrado stricto sensu. As características seriam mais semelhantes àquelas de espécies de matas ciliares, com elevada estatura e área basal. Assim, almejamos analisar as mudanças em uma área de cerrado stricto sensu após 35 anos sob a influência de uma usina hidrelétrica. Testamos parâmetros distintos para determinar essas mudanças, tais como a riqueza, a diversidade, altura dos indivíduos e área basal (utilizando o método do ponto quadrante), com indivíduos < 1 m, indivíduos > 1 m e Bromeliaceae (utilizando o método de parcelas) em três setores próximo à margem da represa (a 0 m - 20 m, 40 m - 60 m e 80 m - 100 m da represa). Utilizando a diversidade de espécies, também comparamos os grupos funcionais de espécies nesses setores. Os setores mais próximos à represa possuíam baixa área basal e altura dos indivíduos atuando como uma borda, mas com espécies com diferentes características em relação ao cerrado stricto sensu. Instituto de Ecología, A.C. 2017-03-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf text/html https://myb.ojs.inecol.mx/index.php/myb/article/view/1527 10.21829/myb.2017.2311527 Madera y Bosques; Vol. 23 No. 1 (2017): Spring 2017; 63-77 Madera y Bosques; Vol. 23 Núm. 1 (2017): Primavera 2017; 63-77 2448-7597 1405-0471 eng https://myb.ojs.inecol.mx/index.php/myb/article/view/1527/1620 https://myb.ojs.inecol.mx/index.php/myb/article/view/1527/1621 Derechos de autor 2017 Madera y Bosques
spellingShingle Santiago do Vale, Vagner
de Oliveira, Ana Paula
do Prado-Junior, Jamir Afonso
Ribeiro Londe, Patrícia
Nascimento, Diego Raymundo
Damming water influences the structure, composition and functions of adjacent savannahs
title Damming water influences the structure, composition and functions of adjacent savannahs
title_full Damming water influences the structure, composition and functions of adjacent savannahs
title_fullStr Damming water influences the structure, composition and functions of adjacent savannahs
title_full_unstemmed Damming water influences the structure, composition and functions of adjacent savannahs
title_short Damming water influences the structure, composition and functions of adjacent savannahs
title_sort damming water influences the structure, composition and functions of adjacent savannahs
url https://myb.ojs.inecol.mx/index.php/myb/article/view/1527
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