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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
01/06/2016 |
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Data da última atualização: |
25/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANDE, M. T. van der; ARETS, E. J. M. M.; PEÑA-CLAROS, M.; AVILA, A. L. de; ROOPSIND, A.; MAZZEI, L.; ASCARRUNZ, N.; FINEGAN, B.; ALARCÓN, A.; CÁCERES-SIANI, A.; LICONA, J. C.; RUSCHEL, A.; TOLEDO, M.; POORTER, L. |
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Afiliação: |
Masha T . van der Sande, Instituto Boliviano de Investigación Forestal; Eric J. M. M. Arets, Wageningen University and Research Centre; Marielos Peña -Claros, Forest Ecology and Forest Management Group, Wageningen University.; Angela Luciana de Avila, Faculty of Environment and Natural Resources, Chair of Silviculture, University of Freiburg; Anand Roopsind, Department of Biology, University of Florida; LUCAS JOSE MAZZEI DE FREITAS, CPATU; Nataly Ascarrunz, Instituto Boliviano de Investigación Forestal; Bryan Finegan, Production and Conservation in Forests Programme CATIE; Alfredo Alarcón, Instituto Boliviano de Investigación Forestal; Asmani Cáceres-Siani, Rurrenabaque, Beni.; Juan Carlos Licona, Instituto Boliviano de Investigación Forestal; ADEMIR ROBERTO RUSCHEL, CPATU; Marisol Toledo, Instituto Boliviano de Investigación Forestal; Lourens Poorter, Forest Ecology and Forest Management Group, Wageningen University. |
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Título: |
Old-growth Neotropical forests are shifting in species and trait composition. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Ecological Monographs, v. 86, n. 2, p. 228-243, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Tropical forests have long been thought to be in stable state, but recent insights indicate that global change is leading to shifts in forest dynamics and species composition. These shifts may be driven by environmental changes such as increased resource availability, increased drought stress, and/or recovery from past disturbances. The relative importance of these drivers can be inferred from analyzing changes in trait values of tree communities. Here, we evaluate a decade of change in species and trait composition across five old-growth Neotropical forests in Bolivia, Brazil, Guyana, and Costa Rica that cover large gradients in rainfall and soil fertility. To identify the drivers of compositional change, we used data from 29 permanent sample plots and measurements of 15 leaf, stem, and whole-plant traits that are important for plant performance and should respond to global change drivers. We found that forests differ strongly in their community-mean trait values, resulting from differences in soil fertility and annual rainfall seasonality. The abundance of deciduous species with high specific leaf area increases from wet to dry forests. The community-mean wood density is high in the driest forests to protect xylem vessels against drought cavitation, and is high in nutrient-poor forests to increase wood longevity and enhance nutrient residence time in the plant. Interestingly, the species composition changed over time in three of the forests, and the community-mean wood density increased and the specific leaf area decreased in all forests, indicating that these forests are changing toward later successional stages dominated by slow-growing, shade-tolerant species. We did not see changes in other traits that could reflect responses to increased drought stress, such as increased drought deciduousness or decreased maximum adult size, or that could reflect increased resource availability (CO2, rainfall, or nitrogen). Changes in species and trait composition in these forests are therefore most likely caused by recovery from past disturbances. These compositional changes may also lead to shifts in ecosystem processes, such as a lower carbon sequestration and ?slower? forest dynamics. MenosTropical forests have long been thought to be in stable state, but recent insights indicate that global change is leading to shifts in forest dynamics and species composition. These shifts may be driven by environmental changes such as increased resource availability, increased drought stress, and/or recovery from past disturbances. The relative importance of these drivers can be inferred from analyzing changes in trait values of tree communities. Here, we evaluate a decade of change in species and trait composition across five old-growth Neotropical forests in Bolivia, Brazil, Guyana, and Costa Rica that cover large gradients in rainfall and soil fertility. To identify the drivers of compositional change, we used data from 29 permanent sample plots and measurements of 15 leaf, stem, and whole-plant traits that are important for plant performance and should respond to global change drivers. We found that forests differ strongly in their community-mean trait values, resulting from differences in soil fertility and annual rainfall seasonality. The abundance of deciduous species with high specific leaf area increases from wet to dry forests. The community-mean wood density is high in the driest forests to protect xylem vessels against drought cavitation, and is high in nutrient-poor forests to increase wood longevity and enhance nutrient residence time in the plant. Interestingly, the species composition changed over time in three of the forests, and the community-mean wood den... Mostrar Tudo |
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Thesagro: |
Biodiversidade; Fertilidade do Solo; Floresta; Floresta Tropical. |
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Thesaurus Nal: |
soil fertility. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03149naa a2200337 a 4500
001 2046085
005 2022-05-25
008 2016 bl uuuu u00u1 u #d
100 1 $aSANDE, M. T. van der
245 $aOld-growth Neotropical forests are shifting in species and trait composition.$h[electronic resource]
260 $c2016
520 $aTropical forests have long been thought to be in stable state, but recent insights indicate that global change is leading to shifts in forest dynamics and species composition. These shifts may be driven by environmental changes such as increased resource availability, increased drought stress, and/or recovery from past disturbances. The relative importance of these drivers can be inferred from analyzing changes in trait values of tree communities. Here, we evaluate a decade of change in species and trait composition across five old-growth Neotropical forests in Bolivia, Brazil, Guyana, and Costa Rica that cover large gradients in rainfall and soil fertility. To identify the drivers of compositional change, we used data from 29 permanent sample plots and measurements of 15 leaf, stem, and whole-plant traits that are important for plant performance and should respond to global change drivers. We found that forests differ strongly in their community-mean trait values, resulting from differences in soil fertility and annual rainfall seasonality. The abundance of deciduous species with high specific leaf area increases from wet to dry forests. The community-mean wood density is high in the driest forests to protect xylem vessels against drought cavitation, and is high in nutrient-poor forests to increase wood longevity and enhance nutrient residence time in the plant. Interestingly, the species composition changed over time in three of the forests, and the community-mean wood density increased and the specific leaf area decreased in all forests, indicating that these forests are changing toward later successional stages dominated by slow-growing, shade-tolerant species. We did not see changes in other traits that could reflect responses to increased drought stress, such as increased drought deciduousness or decreased maximum adult size, or that could reflect increased resource availability (CO2, rainfall, or nitrogen). Changes in species and trait composition in these forests are therefore most likely caused by recovery from past disturbances. These compositional changes may also lead to shifts in ecosystem processes, such as a lower carbon sequestration and ?slower? forest dynamics.
650 $asoil fertility
650 $aBiodiversidade
650 $aFertilidade do Solo
650 $aFloresta
650 $aFloresta Tropical
700 1 $aARETS, E. J. M. M.
700 1 $aPEÑA-CLAROS, M.
700 1 $aAVILA, A. L. de
700 1 $aROOPSIND, A.
700 1 $aMAZZEI, L.
700 1 $aASCARRUNZ, N.
700 1 $aFINEGAN, B.
700 1 $aALARCÓN, A.
700 1 $aCÁCERES-SIANI, A.
700 1 $aLICONA, J. C.
700 1 $aRUSCHEL, A.
700 1 $aTOLEDO, M.
700 1 $aPOORTER, L.
773 $tEcological Monographs$gv. 86, n. 2, p. 228-243, 2016.
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Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
08/11/2021 |
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Data da última atualização: |
08/11/2021 |
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Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
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Autoria: |
MICHEREFF FILHO, M.; FONSECA, M. E. N.; BOITEUX, L. S.; SOUSA, N. C. de M.; SILVA, K. F. A. de S.; SILVA, P. A. da; SILVA, P. S. da; MOITA, A. W.; TORRES, J. B. |
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Afiliação: |
MIGUEL MICHEREFF FILHO, CNPH; MARIA ESTHER DE N FONSECA BOITEUX, CNPH; LEONARDO SILVA BOITEUX, CNPH; NAYARA CRISTINA DE MAGALHÃES SOUSA, Universidade Federal Rural de Pernambuco.; KARLA FERNANDA AYRES DE SOUZA SILVA, Universidade Federal Rural de Pernambuco.; PALOMA ALVES DA SILVA; PATRÍCIA SANTOS DA SILVA, Bolsista FAPDF/ CNPH; ANTONIO WILLIAMS MOITA, CNPH; JORGE BRAZ TORRES, Universidade Federal Rural de Pernambuco. |
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Título: |
Suscetibilidade de cultivares de tomateiro à Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae). |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Brasília, DF: Embrapa Hortaliças, 2021. |
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Páginas: |
31 p. |
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Série: |
(Embrapa Hortaliças. Boletim de pesquisa e desenvolvimento, 232). |
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ISSN: |
1677-2229 |
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Idioma: |
Português |
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Conteúdo: |
Este trabalho avaliou a suscetibilidade de nove cultivares de tomateiro à infestação de H. armigera em casa de vegetação, com chance de escolha e determinou o desempenho da fase larval da praga nesses genótipos, em condições de laboratório. As cultivares BRS Zamir e BRS Sena apresentaram as menores infestações de lagartas, enquanto BRS Zamir apresentou a menor porcentagem de frutos danificados (11,42%) e o menor consumo de polpa (8,14 g/lagarta), respectivamente. A menor duração do período larval ocorreu em insetos alimentados com frutos da cultivar AP533 (10,94 dias), enquanto os maiores tempos de desenvolvimento foram constatados com frutos de BRS Zamir e BRS Sena (18,3 a 18,6 dias). O peso dos insetos no final da fase larval não diferiu entre os genótipos (0,43 a 0,52 g/lagarta) e os níveis de mortalidade foram inferiores a 19%. Conclui-se que, apesar de efeitos adversos apresentados por alguns genótipos de tomateiro, H. armigera pode utilizar estratégias de compensação para consumo e uso de alimento que permitam alto desempenho da fase larval. |
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Thesagro: |
Praga de Planta; Tomate. |
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Thesaurus NAL: |
Solanum lycopersicum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227471/1/BPD-232-8nov2021.pdf
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Marc: |
LEADER 01942nam a2200277 a 4500
001 2135869
005 2021-11-08
008 2021 bl uuuu u0uu1 u #d
022 $a1677-2229
100 1 $aMICHEREFF FILHO, M.
245 $aSuscetibilidade de cultivares de tomateiro à Helicoverpa armigera (Hübner) (Lepidoptera$bNoctuidae).$h[electronic resource]
260 $aBrasília, DF: Embrapa Hortaliças$c2021
300 $a31 p.
490 $a(Embrapa Hortaliças. Boletim de pesquisa e desenvolvimento, 232).
520 $aEste trabalho avaliou a suscetibilidade de nove cultivares de tomateiro à infestação de H. armigera em casa de vegetação, com chance de escolha e determinou o desempenho da fase larval da praga nesses genótipos, em condições de laboratório. As cultivares BRS Zamir e BRS Sena apresentaram as menores infestações de lagartas, enquanto BRS Zamir apresentou a menor porcentagem de frutos danificados (11,42%) e o menor consumo de polpa (8,14 g/lagarta), respectivamente. A menor duração do período larval ocorreu em insetos alimentados com frutos da cultivar AP533 (10,94 dias), enquanto os maiores tempos de desenvolvimento foram constatados com frutos de BRS Zamir e BRS Sena (18,3 a 18,6 dias). O peso dos insetos no final da fase larval não diferiu entre os genótipos (0,43 a 0,52 g/lagarta) e os níveis de mortalidade foram inferiores a 19%. Conclui-se que, apesar de efeitos adversos apresentados por alguns genótipos de tomateiro, H. armigera pode utilizar estratégias de compensação para consumo e uso de alimento que permitam alto desempenho da fase larval.
650 $aSolanum lycopersicum
650 $aPraga de Planta
650 $aTomate
700 1 $aFONSECA, M. E. N.
700 1 $aBOITEUX, L. S.
700 1 $aSOUSA, N. C. de M.
700 1 $aSILVA, K. F. A. de S.
700 1 $aSILVA, P. A. da
700 1 $aSILVA, P. S. da
700 1 $aMOITA, A. W.
700 1 $aTORRES, J. B.
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