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| Registros recuperados : 186 | |
| 82. |  | KUBOTA, T. Y. K.; SILVA, E. C. B. da; MORAES, M. L. T. de; TARAZI, R.; SEBBENN, A. M. Herdabilidade em caracteres de crescimento em populações fragmentadas de Copaifera langsdorffii Desf. (Fabaceae). Scientia Forestalis, Piracicaba, v. 43, n. 105, p. 235-242, mar. 2015.| Biblioteca(s): Embrapa Florestas. |
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| 83. | | ARRUDA, C. C. B.; SILVA, M. B.; GRIBEL, R.; LEMES, M. R.; KANASHIRO, M.; SEBBENN, A. M. Logging decreases the pollen dispersal distance in a low-density population of the tree Bagassa guianensis in the Brazilian Amazon. Silvae Genetica, v. 64, n. 5/6, p. 279-290, 2015.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 84. | | VINSON, C. C.; KANASHIRO, M.; SEBBENN, A. M.; WILLIAMS, T. C. R.; HARRIS, S. A.; BOSHIER, D. H. Long-term impacts of selective logging on two Amazonian tree species with contrasting ecological and reproductive characteristics: inferences from Eco-gene model simulations. Heredity, v. 115, n. 2, p. 130-139, Aug. 2015.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 85. | | SEOANE, C. E. S.; KAGEYAMA, P. Y.; RIBEIRO, A.; MATIAS, R.; REIS, M. S. dos; BAWA, K.; SEBBENN, A. M. Efeitos de fragmentação florestal sobre a imigração de sementes e a estrutura genética temporal de populações de Euterpe edulis. Mart. Revista do Instituto Florestal, São Paulo, v. 17, n. 1, p. 25-43, jun. 2005.| Biblioteca(s): Embrapa Florestas. |
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| 86. | | KAGEYAMA, P. Y.; SEBBENN, A. M.; RIBAS, L. A.; GANDARA, F. B.; CASTELLEN, M.; PERECIM, M. B.; VENCOVSKY, R. Diversidade genética em espécies arbóreas tropicais de diferentes estágios sucessionais por marcadores genéticos. Scientia Forestalis, Piracicaba, n. 64, p. 93-107, dez. 2003.| Biblioteca(s): Embrapa Florestas. |
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| 87. | | KAGEYAMA, P. Y.; CUNHA, G. C. da; BARRETO, K. D.; GANDARA, F. B.; CAMARGO, F. R. A.; SEBBENN, A. M. Diversidade e autocorrelação genética espacial em populações de Ocotea odorifera (Lauraceae). Scientia Forestalis, Piracicaba, n. 64, p. 108-119, dez. 2003.| Biblioteca(s): Embrapa Florestas. |
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| 88. | | BALDONI, A. B.; SEBBENN, A. M.; AZEVEDO, V. R.; BOTIN, A. A.; TONINI, H.; HOOGERHEIDE, E. S. S. Estudo da diversidade genética e estrutura populacional de castanheira-do-brasil (Bertholletia excelsa) em florestas nativas do Mato Grosso. In. CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 3., 2014, Santos. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2014. Resumo. 150. 1 CD-ROM.| Biblioteca(s): Embrapa Agrossilvipastoril; Embrapa Recursos Genéticos e Biotecnologia. |
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| 89. | | WENDT, S. N.; SOUSA, V. A. de; QUOIRIN, M.; MAZZA, M. C. M.; STURION, J. A.; SEBBENN, A. M. Baixa taxa de contaminação de pólen, desvios de cruzamentos aleatórios e endogamia em um pomar de sementes de Ilex paraguariensis l. Scientia Forestalis, Piracicaba, v. 37, n. 82, p. 185-196, jun. 2009.| Biblioteca(s): Embrapa Florestas. |
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| 90. | | WENDT, S. N.; SOUSA, V. A. de; QUOIRIN, M.; SEBBENN, A. M.; MAZZA, M. C. M.; STURION, J. A. Caracterização genética de procedências e progênies de Ilex paraguariensis St. Hill. utilizando marcadores RAPD. Scientia Forestalis, Piracicaba, n. 73, p. 47-53, mar. 2007.| Biblioteca(s): Embrapa Florestas. |
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| 92. | | MORAIS, E.; ZANATTO, A. C. S.; MORAES, M. L. T. de; FREITAS, M. L. M.; SEBBENN, A. M. Comportamento e variação de procedências de Corymbia citriodora em diferentes tipos de solos. Floresta, Curitiba, v. 41, n. 2, p. 277-286, abr./jun. 2011.| Biblioteca(s): Embrapa Florestas. |
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| 93. | | SEBBENN, A. M.; FREITAS, M. L. M.; ZANATTO, A. C. S.; MORAES, E.; MORAES, M. A. de. Conservação Ex situ e pomar de sementes em banco de germoplasma de Balfourodendron riedelianum. Revista do Instituto Florestal, São Paulo, v. 19, n. 2, p. 101-112, dez. 2007.| Biblioteca(s): Embrapa Florestas. |
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| 94. | | FREITAS, M. L. M.; SEBBENN, A. M.; MORAIS, E.; ZANATTO, A. C. S.; VERARDI, C. K.; PIMHEIRO, A. N. Parâmetros genéticos em progênies de polinização aberta de Cordia trichotoma (Vell.) ex Steud. Revista do Instituto Florestal, São Paulo, v. 18, n. único, p. 95-102, dez. 2006.| Biblioteca(s): Embrapa Florestas. |
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| 95. | | KAGEYAMA, P. Y.; OLIVEIRA, R. S. de; FERRAZ, P. A.; FURTADO, E. L.; SOUZA, A. D. de; SEBBENN, A. M. Ganhos na seleção para a produtividade de látex em população natural de Hevea brasiliensis na Reserva Chico Mendes: estudo de caso das IAPs (Ilhas de alta produtividade). Scientia Forestalis, Piracicaba, n. 61, p. 79-85, jun. 2002.| Biblioteca(s): Embrapa Florestas. |
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| 96. | | SATO, A. S.; FREITAS, M. L. M.; LIMA, I. L. de; ZIMBACK, L.; TONIATO, M. T. Z.; SEBBENN, A. M. Genetic variation among and within provenances and progenies of Corymbia maculata (Hook.) K.D. Hill and L.A.S. Johnson, in Pederneiras, SP. Cerne, Lavras, v. 16, n. 2, p. 60-67, jan./mar. 2010.| Biblioteca(s): Embrapa Florestas. |
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| 97. | | SEBBENN, A. M.; ZANATTO, A. C. S.; FREITAIS, M. L. M.; SATO, A. S.; ETTORI, L. de C. Genetic variation in Araucaria cunninghamii provenances in Luiz Antonio-SP, Brazil. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 5, n. 4, p. 435-442, Dec. 2005.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 98. | | FERES, J. M.; GUIDUGLI, M. C.; MESTRINER, M. A.; SEBBENN, A. M.; CIAMPI, A. Y.; ALZATE MARIN, A. L. Microsatellite diversity and effective population size in a germplasm bank of Hymenaea courbaril var. stilbocarpa (Leguminosae), an andangered tropical tree: recommendations for conservation. Genetic Resources and Crop Evolution, v. 56, p. 797-807, 2009.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 99. | | ARRUDA, C. C. B.; SILVA, M. B.; SEBBENN, A. M.; KANASHIRO, M.; LEMES, M. R.; GRIBEL, R. Mating system and genetic diversity of progenies before and after logging: a case study of Bagassa guianensis (Moraceae), a low-density dioecious tree of the Amazonian forest. Tree Genetics & Genomes, v. 11, n. 1, Feb. 2015.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 186 | |
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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. |
|
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 |
|
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. |
|
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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