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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; Embrapa Florestas. |
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Data corrente: |
19/02/2008 |
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Data da última atualização: |
25/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LACERDA, A. E. B. de; KANASHIRO, M.; SEBBENN, A. M. |
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Afiliação: |
André Eduardo Biscaia de Lacerda, Embrapa Florestas; Milton Kanashiro, Embrapa Amazônia Oriental; Alexandre Magno Sebbenn, Instituto Florestal de São Paulo. |
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Título: |
Effects of reduced impact logging on genetic diversity and spatial genetic structure of a Hymenaea courbaril population in the Brazilian Amazon Forest. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Forest Ecology and Management, Amsterdam, v. 255, p. 1034-1043, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Levels of genetic diversity, inbreeding, and spatial genetic structure were investigated at different ontogenic stages for a population of Hymanaea courbaril, before and after Reduced Impact Logging (RIL) was applied, in a 546-ha plot in the Tapajo´s National Forest, in the Brazilian Amazon. The multilocus genotype of nine microsatellites loci was determined for 74 juveniles (dbh < 10 cm), 59 subadults (10 dbh < 50 cm), 76 adults (50 dbh < 100 cm), and 54 large adult trees (dbh 100 cm). The results show a clear tendency of increase in the levels of observed heterozygosity and decrease in the fixation index between juveniles and large adult trees. Although these results were not significant (t-test, P > 0.05), they suggest the occurrence of inbreeding depression. All ontogenic stages showed spatial genetic structure at short distance classes (<200 m), but the levels are not constant among the subpopulations. The harvest of 61% of the reproductive trees caused a loss of 37 (25%) low frequency and rare alleles from the mature population. However, 24 of the ‘‘lost’’ alleles are present in juvenile and subadult populations which might allow their reintroduction into the population when these trees become reproductive. RIL also caused a reduction of the observed and expected heterozygosity of the unlogged reproductive population in comparison to the reproductive population, although these results were not statistically significant (t-test, P > 0.05). Logging also reduced the distance of the spatial genetic structure in the reproductive population from about 800 to 200 m. In general, our results indicate that RIL affected the gene pool and spatial genetic structure of the reproductive population. # 2007 Elsevier B.V. All rights reserved. MenosLevels of genetic diversity, inbreeding, and spatial genetic structure were investigated at different ontogenic stages for a population of Hymanaea courbaril, before and after Reduced Impact Logging (RIL) was applied, in a 546-ha plot in the Tapajo´s National Forest, in the Brazilian Amazon. The multilocus genotype of nine microsatellites loci was determined for 74 juveniles (dbh < 10 cm), 59 subadults (10 dbh < 50 cm), 76 adults (50 dbh < 100 cm), and 54 large adult trees (dbh 100 cm). The results show a clear tendency of increase in the levels of observed heterozygosity and decrease in the fixation index between juveniles and large adult trees. Although these results were not significant (t-test, P > 0.05), they suggest the occurrence of inbreeding depression. All ontogenic stages showed spatial genetic structure at short distance classes (<200 m), but the levels are not constant among the subpopulations. The harvest of 61% of the reproductive trees caused a loss of 37 (25%) low frequency and rare alleles from the mature population. However, 24 of the ‘‘lost’’ alleles are present in juvenile and subadult populations which might allow their reintroduction into the population when these trees become reproductive. RIL also caused a reduction of the observed and expected heterozygosity of the unlogged reproductive population in comparison to the reproductive population, although these results were not statistically significant (t-test, P > 0.05). Logging also reduced the dista... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Hymrnaea courbaril; Impact. |
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Thesagro: |
Árvore Angiosperma; Genética; Jatobá. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02508naa a2200229 a 4500
001 1304067
005 2015-02-25
008 2008 bl uuuu u00u1 u #d
100 1 $aLACERDA, A. E. B. de
245 $aEffects of reduced impact logging on genetic diversity and spatial genetic structure of a Hymenaea courbaril population in the Brazilian Amazon Forest.$h[electronic resource]
260 $c2008
520 $aLevels of genetic diversity, inbreeding, and spatial genetic structure were investigated at different ontogenic stages for a population of Hymanaea courbaril, before and after Reduced Impact Logging (RIL) was applied, in a 546-ha plot in the Tapajo´s National Forest, in the Brazilian Amazon. The multilocus genotype of nine microsatellites loci was determined for 74 juveniles (dbh < 10 cm), 59 subadults (10 dbh < 50 cm), 76 adults (50 dbh < 100 cm), and 54 large adult trees (dbh 100 cm). The results show a clear tendency of increase in the levels of observed heterozygosity and decrease in the fixation index between juveniles and large adult trees. Although these results were not significant (t-test, P > 0.05), they suggest the occurrence of inbreeding depression. All ontogenic stages showed spatial genetic structure at short distance classes (<200 m), but the levels are not constant among the subpopulations. The harvest of 61% of the reproductive trees caused a loss of 37 (25%) low frequency and rare alleles from the mature population. However, 24 of the ‘‘lost’’ alleles are present in juvenile and subadult populations which might allow their reintroduction into the population when these trees become reproductive. RIL also caused a reduction of the observed and expected heterozygosity of the unlogged reproductive population in comparison to the reproductive population, although these results were not statistically significant (t-test, P > 0.05). Logging also reduced the distance of the spatial genetic structure in the reproductive population from about 800 to 200 m. In general, our results indicate that RIL affected the gene pool and spatial genetic structure of the reproductive population. # 2007 Elsevier B.V. All rights reserved.
650 $aAmazonia
650 $aÁrvore Angiosperma
650 $aGenética
650 $aJatobá
653 $aBrasil
653 $aHymrnaea courbaril
653 $aImpact
700 1 $aKANASHIRO, M.
700 1 $aSEBBENN, A. M.
773 $tForest Ecology and Management, Amsterdam$gv. 255, p. 1034-1043, 2008.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 31 | |
| 9. |  | GOMES, R. da C.; NUNEZ, A. J. C.; MARINO, C. T.; MEDEIROS, S. R. de. Estratégias alimentares para gado de corte: suplementação a pasto, semiconfinamento e confinamento. In: MEDEIROS, S. R. de; GOMES, R. da C.; BUNGENSTAB, D. J. (Ed.). Nutrição de bovinos de corte: fundamentos e aplicações. Brasília, DF: Embrapa, 2015. 22 p.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 12. | | GUIMARÃES, V. A. P.; GOMES, R. da C.; COSTA, F. P.; MEDEIROS, S. R. de; MARINO, C. T. Avaliação econômica de sistemas de produção melhorados de bovinos de corte com diferentes estratégias nutricionais na recria e engorda. In: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 9., 2013, Campo Grande, MS. [Anais da..]. Campo Grande, MS: Embrapa Gado de Corte, 2013. (Embrapa Gado de Corte. Documentos, 204). Comissão organizadora: Denise Baptaglin Montagner, Grácia Maria Soares Rosinha, Rodrigo Carvalho Alva.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 13. | | PIERUCCI, J. C.; MEDEIROS, S. R. de; GOMES, R. da C.; MARINO, C. T.; ANDRADE, C. V. Avaliação preliminar das estimativas do modelo Embrapa Invernada para o ganho de peso de bovinos em confinamento. In: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 9., 2013, Campo Grande, MS. [Anais da..]. Campo Grande, MS: Embrapa Gado de Corte, 2013. (Embrapa Gado de Corte. Documentos, 204). Comissão organizadora: Denise Baptaglin Montagner, Grácia Maria Soares Rosinha, Rodrigo Carvalho Alva.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 14. | | ANDRADE, C. V. de; MEDEIROS, S. R. de; GOMES, R. da C.; MARINO, C. T.; PIERUCCI, J. C. Avaliação preliminar das estimativas do modelo invernada para desempenho de bovinos em sistema de pastejo na estação seca do ano. In: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 9., 2013, Campo Grande, MS. [Anais da..]. Campo Grande, MS: Embrapa Gado de Corte, 2013. (Embrapa Gado de Corte. Documentos, 204). Comissão organizadora: Denise Baptaglin Montagner, Grácia Maria Soares Rosinha, Rodrigo Carvalho Alva.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 15. | | MEDEIROS, S. R. de; COSTA JÚNIOR, C.; GOMES, R. da C.; MARINO, C. T.; BARROS, P. E. P. Feedlot pen surface greenhouse gases emissions from Nellore or Brangus bulls finished on diets with contrasting fat levels. In: INTERNATIONAL SYMPOSIUM ON GREENHOUSE GASES IN AGRICULTURE, 2., 2016, Campo Grande, MS. Proceedings... Brasília, DF: Embrapa, 2016. p. 187-190. (Embrapa Gado de Corte. Documentos, 216). Coordenador: Roberto Giolo de Almeida. II SIGEE. p. 478-479| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 16. | | MEDEIROS, S. R. de; ALBERTINI, T. Z.; BARIONI, L. G.; BERNDT, A.; GOMES, R. D. C.; MARINO, C. T.; ANDRADE, C. V.; FREUA, M. C. The effect of concentrate supplementation on methane emission intensity of cattle grazing tropical pastures in the dry season. In: LIVESTOCK, CLIMATE CHANGE AND FOOD SECURITY CONFERENCE, 2014, Madrid. Conference abstract book... [Paris]: INRA, 2014. p. 36.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Gado de Corte; Embrapa Pecuária Sudeste. |
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| 17. | | FEIJO, G. L. D.; MELE, M.; BARROS, P. E. P.; MARINO, C. T.; CIUCCI, F.; BONIN, M. N.; VERBISCK, N. V. Fatty acid composition of intramuscular lipids from Nellore and Brangus bulls fed diets supplemented with cottonseed. In: JOINT ANNUAL MEETING, 2016., Salt Lke City, Utah, 2016. Abstract Book... Champaign: American Dairy Science Association (ADSA), 2016. Resumo publicado no Periódico JOURNAL OF ANIMAL SCIENCE, v. 94, supl. 5, p. 630, Jan. 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 18. | | MARINO, C. T.; MEDEIROS, S. R. de; GOMES, R. da C.; CAROLLO, C. A.; ANDRADE, C. V.; PIERUCCI, J. C.; VALE, J. S.; GUIMARÃES, V. A. P. Identificação de extratos de plantas do cerrado e pantanal com potencial para mitigação de gases do efeito estufa provenientes da fermentação ruminal. In: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 9., 2013, Campo Grande, MS. [Anais da..]. Campo Grande, MS: Embrapa Gado de Corte, 2013. (Embrapa Gado de Corte. Documentos, 204). Comissão organizadora: Denise Baptaglin Montagner, Grácia Maria Soares Rosinha, Rodrigo Carvalho Alva.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 19. | | MARINO, C. T.; MEDEIROS, S. R. de; GOMES, R. da C.; CAROLLO, C. A.; BARROS, P. E. P.; OLIVEIRA, F.; MACHADO, J. Identificação de extratos de plantas do cerrado e pantanal com potencial para modificação no padrão de fermentação ruminal. In: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 11., 2015, Campo Grande, MS. Anais... Campo Grande: Embrapa Gado de Corte, 2015. 114 p. (Embrapa Gado de Corte. Documentos, 213).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 20. | | PERNA J, F.; RODRIGUES, P. H. M.; PINEDO, L. A.; MARINO, C. T.; SOLORZANO, L. A. R.; VASQUEZ, D. C. Z.; BERNDT, A.; FRIGHETTO, R. T. S. Methane production in bovines using different food additives determined by SF6 tracer technique. In: ANNUAL MEETING BRAZILIAN SOCIETY OF ANIMAL SCIENCE, 50., 2013, Campinas. The integration of Knowledge in animal production - abstracts. Campinas: SBZ, 2013 1 CD-ROM| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 31 | |
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