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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
09/02/2011 |
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Data da última atualização: |
14/03/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
OLIVEIRA, R. G. de; VOLTOLINI, T. V.; SANTOS, B. R. C. dos; SILVA, M. R. C. da; SANTOS, I. G. dos; DAMASCENO, M. G.; SANTOS, E. F. dos; ROSAM P. R. da. |
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Afiliação: |
ROGÉRIO GONÇALVES DE OLIVEIRA; TADEU VINHAS VOLTOLINI, CPATSA; BETINA RAQUEL CUNHA DOS SANTOS, FACEPE; MOARA RAQUEL CARVALHO DA SILVA; IRANILDO GENERINO DOS SANTOS; MARCIO GONÇALVES DAMASCENO; ERNANDES FERREIRA DOS SANTOS; PATRÍCIA RAMOS DA ROSA. |
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Título: |
Avaliação do desempenho produtivo de ovinos SRD em pastagens de capim-búffel, sob duas variedades e três ofertas de biomassa no Semiárido de Pernambuco. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 6.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 7.; FÓRUM DE COORDENADORES DE PÓS GRADUAÇÃO EM PRODUÇÃO ANIMAL DO NORDESTE, 1.; FÓRUM DE AGROECOLOGIA RO RIO GRANDE DO NORTE, 1., 2010, Mossoró. Anais... Mossoró: Sociedade Nordestina de Producao Animal; UFERSA, 2010. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
No presente estudo objetivou-se avaliar o desempenho produtivo de ovinos em pastagem de Capim-Búffel submetidos a diferentes ofertas de biomassa no período de baixa precipitação pluviométrica no semiárido de Pernambuco. |
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Palavras-Chave: |
Cenchrus ciliares; Desempenho produtivo; SRD. |
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Thesagro: |
Capim Buffel; Ovino; Pastagem; Taxa de Lotação. |
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Thesaurus Nal: |
Pastures; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/26720/1/Tadeu1.pdf
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Marc: |
LEADER 01430nam a2200313 a 4500
001 1876418
005 2023-03-14
008 2010 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, R. G. de
245 $aAvaliação do desempenho produtivo de ovinos SRD em pastagens de capim-búffel, sob duas variedades e três ofertas de biomassa no Semiárido de Pernambuco.
260 $aIn: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 6.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 7.; FÓRUM DE COORDENADORES DE PÓS GRADUAÇÃO EM PRODUÇÃO ANIMAL DO NORDESTE, 1.; FÓRUM DE AGROECOLOGIA RO RIO GRANDE DO NORTE, 1., 2010, Mossoró. Anais... Mossoró: Sociedade Nordestina de Producao Animal; UFERSA$c2010
300 $c1 CD-ROM.
520 $aNo presente estudo objetivou-se avaliar o desempenho produtivo de ovinos em pastagem de Capim-Búffel submetidos a diferentes ofertas de biomassa no período de baixa precipitação pluviométrica no semiárido de Pernambuco.
650 $aPastures
650 $aSheep
650 $aCapim Buffel
650 $aOvino
650 $aPastagem
650 $aTaxa de Lotação
653 $aCenchrus ciliares
653 $aDesempenho produtivo
653 $aSRD
700 1 $aVOLTOLINI, T. V.
700 1 $aSANTOS, B. R. C. dos
700 1 $aSILVA, M. R. C. da
700 1 $aSANTOS, I. G. dos
700 1 $aDAMASCENO, M. G.
700 1 $aSANTOS, E. F. dos
700 1 $aROSAM P. R. da
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Registro original: |
Embrapa Semiárido (CPATSA) |
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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 Acre; Embrapa Amazônia Oriental; Embrapa Florestas. |
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Data corrente: |
26/08/2011 |
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Data da última atualização: |
24/03/2015 |
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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: |
CARNEIRO, F. S.; LACERDA, A. E. B. de; LEMES, M. R.; GRIBEL, R.; KANASHIRO, M.; WADT, L. H. O.; SEBBENN, A. M. |
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Afiliação: |
F. S. Carneiro, UNESP; ANDRE EDUARDO BISCAIA DE LACERDA, CNPF; M. R. Lemes, INPA; R. Gribel, INPA; MILTON KANASHIRO, CPATU; LUCIA HELENA DE OLIVEIRA WADT, CPAF-AC; A. M. Sebbenn, Instituto Florestal de São Paulo. |
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Título: |
Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Forest Ecology and Management, V. 262, p. 1758-1765, 2011. |
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DOI: |
10.1016/j.foreco.2011.07.023 |
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Idioma: |
Inglês |
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Conteúdo: |
Using nine microsatellite loci, we studied the effects of selective logging on genetic diversity, mating system and pollen dispersal in a population of the tree species Hymenaea courbaril, located in a 546 ha plot in the Tapajós National Forest, Pará State, Brazil. We analyzed 250 offspring (nursery reared seedlings) collected after a logging episode from 14 open-pollinated seed trees. These were compared to 367 seedlings from 20 open-pollinated seed trees previously collected from the pre-logging primary forest. The genetic diversity was significantly lower in the post-logging seed cohort. In contrast to the pre-logging population, significant levels of selfing were detected in the post-logging population (tm = 0.962, P < 0.05). However, correlated matings were reduced and the effective number of pollen donors almost doubled after harvesting (3.8 against 7.2). Logging also reduced pollen immigration into the plot (from 55% to 38%) and we found no significant correlation between the size of the pollen donors and the number of seeds fathered. Inside the plot, pollen dispersal distance was shorter before logging than after (827 and 952 m, respectively) and the reproductive pollination neighbor area (Aep) was larger (average of 178 ha). The individual and average variance effective population size within families (ranged from 1.80 to 3.21, average of 2.47) was lower than expected in panmictic populations (Ne = 4). The results indicate that while logging greatly reduced the levels of genetic diversity after logging, it also increased genetic recombination within the population and constrained crossing among related individuals. The results show that low-density tropical tree species such as H. courbaril, when harvested in moderate levels may be resilient to a reduction in the reproductive population and may maintain similar levels of outcrossing and pollen dispersal after logging. MenosUsing nine microsatellite loci, we studied the effects of selective logging on genetic diversity, mating system and pollen dispersal in a population of the tree species Hymenaea courbaril, located in a 546 ha plot in the Tapajós National Forest, Pará State, Brazil. We analyzed 250 offspring (nursery reared seedlings) collected after a logging episode from 14 open-pollinated seed trees. These were compared to 367 seedlings from 20 open-pollinated seed trees previously collected from the pre-logging primary forest. The genetic diversity was significantly lower in the post-logging seed cohort. In contrast to the pre-logging population, significant levels of selfing were detected in the post-logging population (tm = 0.962, P < 0.05). However, correlated matings were reduced and the effective number of pollen donors almost doubled after harvesting (3.8 against 7.2). Logging also reduced pollen immigration into the plot (from 55% to 38%) and we found no significant correlation between the size of the pollen donors and the number of seeds fathered. Inside the plot, pollen dispersal distance was shorter before logging than after (827 and 952 m, respectively) and the reproductive pollination neighbor area (Aep) was larger (average of 178 ha). The individual and average variance effective population size within families (ranged from 1.80 to 3.21, average of 2.47) was lower than expected in panmictic populations (Ne = 4). The results indicate that while logging greatly reduced the leve... Mostrar Tudo |
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Palavras-Chave: |
Amazônia Oriental; Atividade madeireira; Cruce; Eastern Amazon; Floresta Nacional do Tapajós (PA); Flujo de polen; Madera tropical; Manejo florestal seletivo; Marcador microssatélite; Marcadores genéticos; Pará; Pollen dispersal; Reduced impact logging; SSR loci; Tropical; Tropical tree; Variación genética. |
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Thesagro: |
Árvore; Cruzamento; Dispersão; Essência florestal; Hymenaea courbaril; Jatobá; Marcador genético; Pólen; Variação genética. |
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Thesaurus NAL: |
Amazonia; gene flow; Genetic markers; Genetic variation; Pollen flow; Tropical wood. |
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Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03650naa a2200589 a 4500
001 1906211
005 2015-03-24
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1016/j.foreco.2011.07.023$2DOI
100 1 $aCARNEIRO, F. S.
245 $aEffects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis.$h[electronic resource]
260 $c2011
520 $aUsing nine microsatellite loci, we studied the effects of selective logging on genetic diversity, mating system and pollen dispersal in a population of the tree species Hymenaea courbaril, located in a 546 ha plot in the Tapajós National Forest, Pará State, Brazil. We analyzed 250 offspring (nursery reared seedlings) collected after a logging episode from 14 open-pollinated seed trees. These were compared to 367 seedlings from 20 open-pollinated seed trees previously collected from the pre-logging primary forest. The genetic diversity was significantly lower in the post-logging seed cohort. In contrast to the pre-logging population, significant levels of selfing were detected in the post-logging population (tm = 0.962, P < 0.05). However, correlated matings were reduced and the effective number of pollen donors almost doubled after harvesting (3.8 against 7.2). Logging also reduced pollen immigration into the plot (from 55% to 38%) and we found no significant correlation between the size of the pollen donors and the number of seeds fathered. Inside the plot, pollen dispersal distance was shorter before logging than after (827 and 952 m, respectively) and the reproductive pollination neighbor area (Aep) was larger (average of 178 ha). The individual and average variance effective population size within families (ranged from 1.80 to 3.21, average of 2.47) was lower than expected in panmictic populations (Ne = 4). The results indicate that while logging greatly reduced the levels of genetic diversity after logging, it also increased genetic recombination within the population and constrained crossing among related individuals. The results show that low-density tropical tree species such as H. courbaril, when harvested in moderate levels may be resilient to a reduction in the reproductive population and may maintain similar levels of outcrossing and pollen dispersal after logging.
650 $aAmazonia
650 $agene flow
650 $aGenetic markers
650 $aGenetic variation
650 $aPollen flow
650 $aTropical wood
650 $aÁrvore
650 $aCruzamento
650 $aDispersão
650 $aEssência florestal
650 $aHymenaea courbaril
650 $aJatobá
650 $aMarcador genético
650 $aPólen
650 $aVariação genética
653 $aAmazônia Oriental
653 $aAtividade madeireira
653 $aCruce
653 $aEastern Amazon
653 $aFloresta Nacional do Tapajós (PA)
653 $aFlujo de polen
653 $aMadera tropical
653 $aManejo florestal seletivo
653 $aMarcador microssatélite
653 $aMarcadores genéticos
653 $aPará
653 $aPollen dispersal
653 $aReduced impact logging
653 $aSSR loci
653 $aTropical
653 $aTropical tree
653 $aVariación genética
700 1 $aLACERDA, A. E. B. de
700 1 $aLEMES, M. R.
700 1 $aGRIBEL, R.
700 1 $aKANASHIRO, M.
700 1 $aWADT, L. H. O.
700 1 $aSEBBENN, A. M.
773 $tForest Ecology and Management, V. 262, p. 1758-1765, 2011.
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Embrapa Florestas (CNPF) |
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