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| Registros recuperados : 20 | |
| 8. |  | MACEDO, A. L.; PIMENTA, D. S.; CHEDIER, L. M.; SALES, T. A.; PIRES, M. de F. A. Saberes locais e identificação botânica de plantas medicinais para o uso na clínica de bovinos. In: CONGRESSO NACIONAL DE BOTÂNICA, 61., 2010, Manaus. Diversidade vegetal brasileira: conhecimento, conservação e uso. Manaus: Sociedade Brasileira de Botânica, 2010.| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | MACEDO, A. L.; PRATA, M. C. de A.; PIMENTA, D. S.; CHEDIER, L. M.; PIRES, M. de F. A.; FURLONG, J. Atividade acaricida in vitro dos extratos metanólicos de Agave sisalana e Fucraea selloa frente à Rhipicephalus (Boophilus) microplus. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 47., 2010, Salvador. Empreendedorismo e progresso científico na zootecnia brasileira: anais. Viçosa, MG: Sociedade Brasileira de Zootecnia, 2010.| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | MACEDO, A. L.; PRATA, M. C. de A.; PIMENTA, D. S.; CHEDIER, L. M.; SOUSA, O. V. DE; PIRES, M. de F. A. Atividade carrapaticida e citotóxica in vitro dos extratos metanólicos de Agave sisalana perrine e furcraea selloa K. Koch. In: SIMPÓSIO DE PLANTAS MEDICINAIS DO BRASIL, 21., 2010, João Pessoa. Plantas medicinais: avanços, utilização e conservação. João Pessoa: Universidade Federal da Paraíba, 2010.| Biblioteca(s): Embrapa Gado de Leite. |
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| 12. | | MACEDO, A. L.; DUARTE, L. F. S.; MOTA, E. V. DA S.; CHEDIER, L. M.; FONTES, E. S.; PIMENTA, D. S.; PIRES, M. de F. A. Actividad antimicrobiana in vitro y revision de literatura sobre plantas medicinales utilizadas en la etnoveterinaria en la region del corredor ecologico de la Mantiqueira/MG, Brasil. In: Reunião ALPA, 22., 2011, Montevideo. Memorias...| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | REIS, S. E.; SOLDATI, L. F.; ABRÃO, M.; PRATA, M. C. de A.; MACEDO, A. L.; CHEDIER, L. M.; PIMENTA, D. S.; PIRES, M. de F. A. Avaliação da atividade carrapaticida de diferentes extratos de Polygonum hydropiperoides Michaux. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012.| Biblioteca(s): Embrapa Gado de Leite. |
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| 14. | | PIRES, M. de F. A.; PIMENTA, D. S.; SALES, T. A. DE; RAMOS, A. S.; DINIZ, F. H.; CHEDIER, L. M. Plantas medicinais utilizadas na etnoveterinária bovina em Minas Gerais. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringa. Anais... Maringá: SBZ, 2009.| Biblioteca(s): Embrapa Gado de Leite. |
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| 15. | | MACEDO, A. L.; PRATA, M. C. de A.; PIMENTA, D. S.; CHEDIER, L. M.; SALES, T. A. de; FURLONG, J.; PIRES, M. de F. A. Plantas medicinais utilizadas na etnoveterinária: testes in vitro da atividade acaricida dos extratos metanólicos de Agave sisalana e Furcraea selloa. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 5., 2010, Juiz de Fora, MG. Anais... Juiz de Fora: Embrapa Gado de Leite, 2010. 1 CD-ROM. (Embrapa Gado de Leite. Documentos, 141.). p. 27-32.| Biblioteca(s): Embrapa Gado de Leite. |
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| 16. | | PACIULLO, D. S. C.; PIMENTA, D. S.; CARNEIRO, J. da C.; LIMA, C. B.; COSTA, W. C.; LOPES, F. C. F.; NOVAES, L. P.; RODRIGUES, J. A. S. Características anatômicas de híbridos de "Sorghum bicolor" com "Sorghum sudanense". In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 43., 2006, João Pessoa. Anais... João Pessoa: SBZ: UFPB, 2006. 1 CD-ROM.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 17. | | PIMENTA, D. S.; LEDO, F. J. da S.; CARNEIRO, J. da C.; FERNANDES, P. B.; CAMPOS, W. de C.; PACIULLO, D. S. C.; JANK, L. Avaliações morfoanatômicas e nutricionais em genótipos de Panicum maximum. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA ZOOTECNIA, 47., 2010, Salvador. Empreendedorismo e progresso científicos na zootecnia brasileira de vanguarda: anais. Salvador: SBZ: UFBA, 2010. 3 p. R5372| Biblioteca(s): Embrapa Gado de Corte. |
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| 18. | | PIMENTA, D. S.; LEDO, F. J. da S.; CARNEIRO, J. da C.; FERNANDES, P. B.; CAMPOS, W. de C.; PACIULLO, D. S. C.; JANK, L. Avaliações morfoanatômicas e nutricionais em genótipos de Panicum maximum. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 47., 2010, Salvador. Empreendedorismo e progresso científico na zootecnia brasileira: anais. Viçosa, MG: Sociedade Brasileira de Zootecnia, 2010. 3 p.| Biblioteca(s): Embrapa Gado de Leite. |
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| 19. | | DUARTE, L. F. S.; ABRÃO, M. M.; REIS, S. E.; MACEDO, A. L.; CHEDIER, L. M.; PIMENTA, D. S.; PRATA, M. C. de A.; PIRES, M. de F. A. Acaricidal activity of aqueous extracts of leaves and stems of Polygonum hydropiperoides Michaux. In: AAAP ANIMAL SCIENCE CONGRESS, 15., 2012, Rangsit. Improving smallholder and industrial livestock production for enhancing food security, environment and human welfare: proceedings. Bangkok: The Animal Husbandry Association of Thailand, 2012.| Biblioteca(s): Embrapa Gado de Leite. |
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| 20. | | PIMENTA, D. S.; SALES, T. A.; RAMOS, A. S.; HENRIQUE, A. C.; FREITAS, M. A. F.; SIQUEIRA, R. L.; ROMAN, E. B.; SOUZA, A. D.; DINIZ, F. H.; PIRES, M. F. A. Etnoveterinária em comunidades rurais do Estado de Minas Gerais. In: MINAS LEITE. SUSTENTABILIDADE DA PRODUÇÃO DE LEITE NA AGRICULTURA FAMILIAR. 10. 2008, Anais. Juiz de Fora. Embrapa Gado de Leite, 2008. 1 p. 1 CD.| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 20 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
18/02/2008 |
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Data da última atualização: |
29/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
SEBBENN, A. M.; DEGEN, B.; AZEVEDO, V. C. R.; SILVA, M. B.; LACERDA, A. E. B. de; CIAMPI, A. Y.; KANASHIRO, M.; CARNEIRO, F. da S.; THOMPSON, I.; LOVELESS, M. D. |
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Afiliação: |
Alexandre Magno Sebbenn, Instituto Florestal de São Paulo; Bernd Degen, Bundesforschungsanstalt für Forst; Vânia Cristina Renno Azevedo, Embrapa Recursos Genéticos e Biotecnologia; Marivana Borges Silva, Universidade Federal do Pará; André E. B. de Lacerda, Embrapa Amazônia Oriental; Ana Yamaguishi Ciampi, Embrapa Recursos Genéticos e Biotecnologia; Milton Kanashiro, Embrapa Amazônia Oriental; Francimary da S. Carneiro, Embrapa Amazônia Oriental; Ian Thompson, Embrapa Amazônia Oriental; Marilyn D. Loveless. |
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Título: |
Modelling the long-term impacts of selective logging on genetic diversity and demographic structure of four tropical tree species in the Amazon forest. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Forest Ecology and Management, v. 254, p. 335-349, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
In the last three decades, Amazon tropical forests have experienced high rates of deforestation, both by clearing for agriculture and by logging. In this study, we use computer simulations to examine the potential effects of forest logging on genetic diversity and demographic recovery (basal area development) of four neotropical tree species over a time frame reflecting multiple logging events. The study species, Bagassa guianensis Aubl., Hymenaea courbaril L., Manilkara huberi (Ducke) Chevalier, and Symphonia globulifera L.f., are all taxa which are commonly exploited for timber in the Brazilian Amazon. The simulations were parameterized using empirical data from field studies in the Tapajós National Forest, Pará State, Brazil, including genotypes at microsatellite loci, demography, ecology and growth for each species. Eight scenarios, combining two different cutting cycles and two minimum cutting diameters, were examined for each of the four species. The scenarios represent the actual forest practices used in Brazil and French Guiana (cutting diameter 45 and 60 cm, and cutting cycle of 30 and 65 years, respectively). Logging scenarios were applied for six cutting cycles, and final genetic and demographic data were compared to baseline data from corresponding control scenarios. At the end of the simulated period the basal area was strongly reduced under all conditions in B. guianensis, H. courbaril, and M. huberi. In only two scenarios was a species able to recover its basal area following logging (S. globulifera with both 45- and 60-cm cutting diameters under a 65-year cutting cycle). In the logging scenarios, all species showed a loss of alleles and genotypes and an increased genetic distance (calculated between each population at the start and the end of the simulations). These effects were higher under the most intensive logging cycles (30 years, 45 cm). However, effective number of alleles, expected and observed heterozygosities, and the fixation index were little affected by the logging simulations. Over all, we conclude that, even under very optimistic conditions for growth and recruitment, current logging practices are not sustainable in terms of basal area. Our simulations show that different species respond differently to logging, both demographically and genetically. No single set of logging parameters can be applied to the forest as a whole. Rather, forest management practices must be species-specific, taking into account not only growth parameters but also ecological and reproductive variables, in order to move toward long-term forest sustainability. MenosIn the last three decades, Amazon tropical forests have experienced high rates of deforestation, both by clearing for agriculture and by logging. In this study, we use computer simulations to examine the potential effects of forest logging on genetic diversity and demographic recovery (basal area development) of four neotropical tree species over a time frame reflecting multiple logging events. The study species, Bagassa guianensis Aubl., Hymenaea courbaril L., Manilkara huberi (Ducke) Chevalier, and Symphonia globulifera L.f., are all taxa which are commonly exploited for timber in the Brazilian Amazon. The simulations were parameterized using empirical data from field studies in the Tapajós National Forest, Pará State, Brazil, including genotypes at microsatellite loci, demography, ecology and growth for each species. Eight scenarios, combining two different cutting cycles and two minimum cutting diameters, were examined for each of the four species. The scenarios represent the actual forest practices used in Brazil and French Guiana (cutting diameter 45 and 60 cm, and cutting cycle of 30 and 65 years, respectively). Logging scenarios were applied for six cutting cycles, and final genetic and demographic data were compared to baseline data from corresponding control scenarios. At the end of the simulated period the basal area was strongly reduced under all conditions in B. guianensis, H. courbaril, and M. huberi. In only two scenarios was a species able to recover its basa... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Diversidade genética. |
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Thesagro: |
Análise Estatística; Árvore; Floresta Tropical; Genética; Simulação. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
--
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/177900/1/SP-19686-ID-31075.pdf
|
|
Marc: |
LEADER 03585naa a2200325 a 4500
001 1190806
005 2022-09-29
008 2008 bl uuuu u00u1 u #d
100 1 $aSEBBENN, A. M.
245 $aModelling the long-term impacts of selective logging on genetic diversity and demographic structure of four tropical tree species in the Amazon forest.$h[electronic resource]
260 $c2008
520 $aIn the last three decades, Amazon tropical forests have experienced high rates of deforestation, both by clearing for agriculture and by logging. In this study, we use computer simulations to examine the potential effects of forest logging on genetic diversity and demographic recovery (basal area development) of four neotropical tree species over a time frame reflecting multiple logging events. The study species, Bagassa guianensis Aubl., Hymenaea courbaril L., Manilkara huberi (Ducke) Chevalier, and Symphonia globulifera L.f., are all taxa which are commonly exploited for timber in the Brazilian Amazon. The simulations were parameterized using empirical data from field studies in the Tapajós National Forest, Pará State, Brazil, including genotypes at microsatellite loci, demography, ecology and growth for each species. Eight scenarios, combining two different cutting cycles and two minimum cutting diameters, were examined for each of the four species. The scenarios represent the actual forest practices used in Brazil and French Guiana (cutting diameter 45 and 60 cm, and cutting cycle of 30 and 65 years, respectively). Logging scenarios were applied for six cutting cycles, and final genetic and demographic data were compared to baseline data from corresponding control scenarios. At the end of the simulated period the basal area was strongly reduced under all conditions in B. guianensis, H. courbaril, and M. huberi. In only two scenarios was a species able to recover its basal area following logging (S. globulifera with both 45- and 60-cm cutting diameters under a 65-year cutting cycle). In the logging scenarios, all species showed a loss of alleles and genotypes and an increased genetic distance (calculated between each population at the start and the end of the simulations). These effects were higher under the most intensive logging cycles (30 years, 45 cm). However, effective number of alleles, expected and observed heterozygosities, and the fixation index were little affected by the logging simulations. Over all, we conclude that, even under very optimistic conditions for growth and recruitment, current logging practices are not sustainable in terms of basal area. Our simulations show that different species respond differently to logging, both demographically and genetically. No single set of logging parameters can be applied to the forest as a whole. Rather, forest management practices must be species-specific, taking into account not only growth parameters but also ecological and reproductive variables, in order to move toward long-term forest sustainability.
650 $aAmazonia
650 $aAnálise Estatística
650 $aÁrvore
650 $aFloresta Tropical
650 $aGenética
650 $aSimulação
653 $aBrasil
653 $aDiversidade genética
700 1 $aDEGEN, B.
700 1 $aAZEVEDO, V. C. R.
700 1 $aSILVA, M. B.
700 1 $aLACERDA, A. E. B. de
700 1 $aCIAMPI, A. Y.
700 1 $aKANASHIRO, M.
700 1 $aCARNEIRO, F. da S.
700 1 $aTHOMPSON, I.
700 1 $aLOVELESS, M. D.
773 $tForest Ecology and Management$gv. 254, p. 335-349, 2008.
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