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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Trigo; Embrapa Unidades Centrais. |
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Data corrente: |
13/10/1992 |
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Data da última atualização: |
04/08/2014 |
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Autoria: |
TENENTE, R. C. V.; MARQUES, A. S. dos A. |
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Afiliação: |
EMBRAPA-CENARGEN. |
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Título: |
Nematóide de galhas em sementes de trigo e centeio. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Brasilia: EMBRAPA-CENARGEN, 1983. |
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Páginas: |
5p. |
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Série: |
(EMBRAPA-CENARGEN. Comunicado tecnico, 05) |
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Idioma: |
Português |
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Palavras-Chave: |
Controle; Doenca nematoide; Galhas; Pragas. |
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Thesagro: |
Centeio; Doença; Nematóide; Quarentena; Semente; Trigo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/90580/1/1724.pdf
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Marc: |
LEADER 00643nam a2200253 a 4500
001 1170004
005 2014-08-04
008 1983 bl uuuu u0uu1 u #d
100 1 $aTENENTE, R. C. V.
245 $aNematóide de galhas em sementes de trigo e centeio.
260 $aBrasilia: EMBRAPA-CENARGEN$c1983
300 $a5p.
490 $a(EMBRAPA-CENARGEN. Comunicado tecnico, 05)
650 $aCenteio
650 $aDoença
650 $aNematóide
650 $aQuarentena
650 $aSemente
650 $aTrigo
653 $aControle
653 $aDoenca nematoide
653 $aGalhas
653 $aPragas
700 1 $aMARQUES, A. S. dos A.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
12/03/2019 |
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Data da última atualização: |
27/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BERENGUER, E.; GARDNER, T. A.; FERREIRA, J. N.; ARAGÃO, L. E. O. C.; NALLY, R. M.; THOMSON, J. R.; VIEIRA, I. C. G.; BARLOW, J. |
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Afiliação: |
Erika Berenguer, University of Oxford / Lancaster University; Toby Alan Gardner, Stockholm Environment Institute / International Institute for Sustainability; JOICE NUNES FERREIRA, CPATU; Luiz E. O. C. Aragão, University of Exeter / INPE; Ralph Mac Nally, University of Canberra / La Trobe University; James R. Thomson, University of Canberra; Ima Célia Guimarães Vieira, MPEG; Jos Barlow, Lancaster University / MPEG. |
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Título: |
Seeing the woods through the saplings: Using wood density to assess the recovery of human-modified Amazonian forests. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Ecology, v. 106, n. 6, p. 2190-2203, Nov. 2018. |
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DOI: |
10.1111/1365-2745.12991 |
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Idioma: |
Inglês |
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Conteúdo: |
Most of the world's remaining tropical forests have been affected by either selective logging, understorey fires, fragmentation or are regrowing in areas that were previously deforested. Despite the ubiquity of these human?modified forests, we have a limited knowledge of their potential to recover key traits linked to ecosystem processes and consequent services. Here we present data from 31,095 trees and saplings distributed across 121 plots of undisturbed and disturbed primary forests as well as secondary forests in the eastern Amazon. We examined the post?disturbance recovery trajectory of an important plant functional trait, wood density. We tested whether human?modified Amazonian forests are experiencing a rapid or a slow, or even impeded, recovery of this trait, which is associated with the provision of a fundamental ecosystem service?carbon storage. As expected, we found that the plot?level wood density of trees and saplings in disturbed primary and secondary forests was significantly lower than in undisturbed forests. However, there was no significant difference in the average wood density of saplings between disturbed primary and secondary forests, possibly indicating a process of secondarization. We also found evidence that the recovery of wood density in human?modified forests is being severely disrupted due to edge effects (in the case of disturbed primary forests) and high liana densities (in the case of both disturbed primary and secondary forests). Surprisingly, these two factors were more important predictors of wood density recovery than the time elapsed since the disturbance event. Synthesis. Plant communities in human?modified Amazonian forests appear to not be recovering a key functional property?wood density, which in turn may affect their ability to store carbon in the future. If the aim of conservation programs in tropical forests is to maintain existing rates of ecosystem functions, processes and services, then they must concentrate efforts on avoiding anthropogenic disturbance in areas of currently undisturbed forests. It is also vital to prevent further disturbance in human?modified forests to avoid disrupting even more their recovery. MenosMost of the world's remaining tropical forests have been affected by either selective logging, understorey fires, fragmentation or are regrowing in areas that were previously deforested. Despite the ubiquity of these human?modified forests, we have a limited knowledge of their potential to recover key traits linked to ecosystem processes and consequent services. Here we present data from 31,095 trees and saplings distributed across 121 plots of undisturbed and disturbed primary forests as well as secondary forests in the eastern Amazon. We examined the post?disturbance recovery trajectory of an important plant functional trait, wood density. We tested whether human?modified Amazonian forests are experiencing a rapid or a slow, or even impeded, recovery of this trait, which is associated with the provision of a fundamental ecosystem service?carbon storage. As expected, we found that the plot?level wood density of trees and saplings in disturbed primary and secondary forests was significantly lower than in undisturbed forests. However, there was no significant difference in the average wood density of saplings between disturbed primary and secondary forests, possibly indicating a process of secondarization. We also found evidence that the recovery of wood density in human?modified forests is being severely disrupted due to edge effects (in the case of disturbed primary forests) and high liana densities (in the case of both disturbed primary and secondary forests). Surprisingly... Mostrar Tudo |
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Palavras-Chave: |
Densidade; Recuperação. |
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Thesagro: |
Floresta Tropical; Madeira. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02999naa a2200265 a 4500
001 2106968
005 2019-12-27
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1111/1365-2745.12991$2DOI
100 1 $aBERENGUER, E.
245 $aSeeing the woods through the saplings$bUsing wood density to assess the recovery of human-modified Amazonian forests.$h[electronic resource]
260 $c2018
520 $aMost of the world's remaining tropical forests have been affected by either selective logging, understorey fires, fragmentation or are regrowing in areas that were previously deforested. Despite the ubiquity of these human?modified forests, we have a limited knowledge of their potential to recover key traits linked to ecosystem processes and consequent services. Here we present data from 31,095 trees and saplings distributed across 121 plots of undisturbed and disturbed primary forests as well as secondary forests in the eastern Amazon. We examined the post?disturbance recovery trajectory of an important plant functional trait, wood density. We tested whether human?modified Amazonian forests are experiencing a rapid or a slow, or even impeded, recovery of this trait, which is associated with the provision of a fundamental ecosystem service?carbon storage. As expected, we found that the plot?level wood density of trees and saplings in disturbed primary and secondary forests was significantly lower than in undisturbed forests. However, there was no significant difference in the average wood density of saplings between disturbed primary and secondary forests, possibly indicating a process of secondarization. We also found evidence that the recovery of wood density in human?modified forests is being severely disrupted due to edge effects (in the case of disturbed primary forests) and high liana densities (in the case of both disturbed primary and secondary forests). Surprisingly, these two factors were more important predictors of wood density recovery than the time elapsed since the disturbance event. Synthesis. Plant communities in human?modified Amazonian forests appear to not be recovering a key functional property?wood density, which in turn may affect their ability to store carbon in the future. If the aim of conservation programs in tropical forests is to maintain existing rates of ecosystem functions, processes and services, then they must concentrate efforts on avoiding anthropogenic disturbance in areas of currently undisturbed forests. It is also vital to prevent further disturbance in human?modified forests to avoid disrupting even more their recovery.
650 $aFloresta Tropical
650 $aMadeira
653 $aDensidade
653 $aRecuperação
700 1 $aGARDNER, T. A.
700 1 $aFERREIRA, J. N.
700 1 $aARAGÃO, L. E. O. C.
700 1 $aNALLY, R. M.
700 1 $aTHOMSON, J. R.
700 1 $aVIEIRA, I. C. G.
700 1 $aBARLOW, J.
773 $tJournal of Ecology$gv. 106, n. 6, p. 2190-2203, Nov. 2018.
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Embrapa Amazônia Oriental (CPATU) |
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