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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 02507naa 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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| 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: |
31/08/2023 |
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Data da última atualização: |
31/08/2023 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
OLIVEIRA NETO, J. N. de; NASCIMENTO, J. W. B. do; FERREIRA, A. C.; NUNES, A. de L.; MARACAJA, P. B.; SILVA, M. da; DIAS, A. L. D.; SILVA, M. G. da; PEREIRA, D. S. |
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Afiliação: |
JOSE NUNES DE OLIVEIRA NETO; JOSE WALLACE BARBOSA DO NASCIMENTO; ALINE COSTA FERREIRA; ALICE DE LAVOR NUNES; PATRICIO BORGES MARACAJA; MICHEL DA SILVA; ANDRÉ LUIS DECCACHE DIAS; MAICON GONZAGA DA SILVA; DANIEL SANTIAGO PEREIRA, CPATU. |
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Título: |
Mapeamento de temperatura e umidade na ambiência de uma colmeia não povoada (testemunha). |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: OLIVEIRA NETO, J. N. de; NASCIMENTO, J. W. B. do; FERREIRA, A. C. F. (org.). Apicultura conectada: construindo uma plataforma IOT para monitorar a ambiência apícola no semiárido brasileiro. Belém, PA: RFB, 2023. |
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Páginas: |
Cap. 8, p. 71-82. |
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Idioma: |
Português |
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Thesagro: |
Colméia; Temperatura; Termorregulação; Umidade. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 00954naa a2200265 a 4500
001 2156260
005 2023-08-31
008 2023 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA NETO, J. N. de
245 $aMapeamento de temperatura e umidade na ambiência de uma colmeia não povoada (testemunha).$h[electronic resource]
260 $c2023
300 $aCap. 8, p. 71-82.
650 $aColméia
650 $aTemperatura
650 $aTermorregulação
650 $aUmidade
700 1 $aNASCIMENTO, J. W. B. do
700 1 $aFERREIRA, A. C.
700 1 $aNUNES, A. de L.
700 1 $aMARACAJA, P. B.
700 1 $aSILVA, M. da
700 1 $aDIAS, A. L. D.
700 1 $aSILVA, M. G. da
700 1 $aPEREIRA, D. S.
773 $tIn: OLIVEIRA NETO, J. N. de; NASCIMENTO, J. W. B. do; FERREIRA, A. C. F. (org.). Apicultura conectada: construindo uma plataforma IOT para monitorar a ambiência apícola no semiárido brasileiro. Belém, PA: RFB, 2023.
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Embrapa Amazônia Oriental (CPATU) |
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