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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
22/03/1999 |
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Data da última atualização: |
22/03/1999 |
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Autoria: |
EDEN, M. J. |
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Afiliação: |
Department of Geography, Bedford College, London University. |
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Título: |
Palaeoclimatic influences and the development of savanna in southern Venezuela. |
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Ano de publicação: |
1974 |
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Fonte/Imprenta: |
Journal of Biogeography, v.1, n.2, p.95-109, 1974. |
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Idioma: |
Inglês |
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Conteúdo: |
Isolated tracts of savanna in the humid environment of southern Venezuela are described. Their distribution is not related to peculiarly adverse soil conditions; nor do the savannas seem to have been formed solely as a result of slah and burn agriculture or direct forest burning. Nevertheless, the savannas are contemporarily fire maintained. In view of these conditions and also of the floristic affinity among tropical American savannas, it is suggested that the savanna islands in southern Venezuela are relics of more widespread savanna which existed under previously drier conditions; the islands have survived locally through burning, in spite of a later tendency to increasing rainfall and general reforestation. Similar relict savannas also exist else where within the main body of the amazon forest. In currently dier areas such as the llanos and campos cerrados the situation is less clear, but some relict savanna may also exist in places where pyrogenic savanna has been postulated. |
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Palavras-Chave: |
Humid environment; Influencia palaeoclimatica; Meio ambiente umido; Palaeoclimatic influences; Savanna; Southern Venezuela; Sul da Venezuela. |
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Thesagro: |
Cerrado. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01617naa a2200217 a 4500
001 1794562
005 1999-03-22
008 1974 bl --- 0-- u #d
100 1 $aEDEN, M. J.
245 $aPalaeoclimatic influences and the development of savanna in southern Venezuela.
260 $c1974
520 $aIsolated tracts of savanna in the humid environment of southern Venezuela are described. Their distribution is not related to peculiarly adverse soil conditions; nor do the savannas seem to have been formed solely as a result of slah and burn agriculture or direct forest burning. Nevertheless, the savannas are contemporarily fire maintained. In view of these conditions and also of the floristic affinity among tropical American savannas, it is suggested that the savanna islands in southern Venezuela are relics of more widespread savanna which existed under previously drier conditions; the islands have survived locally through burning, in spite of a later tendency to increasing rainfall and general reforestation. Similar relict savannas also exist else where within the main body of the amazon forest. In currently dier areas such as the llanos and campos cerrados the situation is less clear, but some relict savanna may also exist in places where pyrogenic savanna has been postulated.
650 $aCerrado
653 $aHumid environment
653 $aInfluencia palaeoclimatica
653 $aMeio ambiente umido
653 $aPalaeoclimatic influences
653 $aSavanna
653 $aSouthern Venezuela
653 $aSul da Venezuela
773 $tJournal of Biogeography$gv.1, n.2, p.95-109, 1974.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
17/02/2011 |
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Data da última atualização: |
16/02/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
NODA, R. W.; GUIMARÃES, C. T.; GOMES, E. A.; CARNEIRO, N. P.; LANA, U. G. P.; MAGALHÃES, J. V. D.; COSTA, M. M. C.; SILVA, F. R. D.; BRAMMER, S. P.; LÂNGARO, N. C.; CARVALHO, L. J. C. B.; BEVITORI, R.; PURCINO, A. A. C. |
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Afiliação: |
ROBERTO WILLIANS NODA, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; ELIANE APARECIDA GOMES, CNPMS; NEWTON PORTILHO CARNEIRO, CNPMS; UBIRACI GOMES DE PAULA LANA, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS; MARCOS MOTA DO CARMO COSTA, CENARGEN; FELIPE RODRIGUES DA SILVA, CNPTIA; SANDRA PATUSSI BRAMMER, CNPT; N. C. LÂNGARO, UPF; LUIZ JOAQUIM CASTELO B CARVALHO, CENARGEN; ROSANGELA BEVITORI, CNPAF; ANTONIO ALVARO CORSETTI PURCINO, CNPMS. |
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Título: |
Aluminum-induced genes in grass species. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE OF THE BRAZILIAN ASSOCIATION FOR BIOINFORMATICS AND COMPUTATIONAL BIOLOGY, 6., 2010, Ouro Preto. Abstracts... [S.l.: s.n.], 2010. |
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Páginas: |
p. 185. |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to identify genes associated with Al tolerance mechanisms in grasses, using cDNA and subtracitve libraries derived from roots of maize, rice, sorghum, oat, barley, wheat and brachiaria tolerant genotypes submitted to critical levels of Al in nutrient solution. |
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Thesagro: |
Alumínio; Gene; Genética; Toxidez. |
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Thesaurus NAL: |
Aluminum; Genes; Sequence analysis. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/25479/1/Aluminum-induced.pdf
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Marc: |
LEADER 01291nam a2200349 a 4500
001 1877759
005 2024-02-16
008 2010 bl uuuu u00u1 u #d
100 1 $aNODA, R. W.
245 $aAluminum-induced genes in grass species.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE OF THE BRAZILIAN ASSOCIATION FOR BIOINFORMATICS AND COMPUTATIONAL BIOLOGY, 6., 2010, Ouro Preto. Abstracts... [S.l.: s.n.]$c2010
300 $ap. 185.
520 $aThis study aimed to identify genes associated with Al tolerance mechanisms in grasses, using cDNA and subtracitve libraries derived from roots of maize, rice, sorghum, oat, barley, wheat and brachiaria tolerant genotypes submitted to critical levels of Al in nutrient solution.
650 $aAluminum
650 $aGenes
650 $aSequence analysis
650 $aAlumínio
650 $aGene
650 $aGenética
650 $aToxidez
700 1 $aGUIMARÃES, C. T.
700 1 $aGOMES, E. A.
700 1 $aCARNEIRO, N. P.
700 1 $aLANA, U. G. P.
700 1 $aMAGALHÃES, J. V. D.
700 1 $aCOSTA, M. M. C.
700 1 $aSILVA, F. R. D.
700 1 $aBRAMMER, S. P.
700 1 $aLÂNGARO, N. C.
700 1 $aCARVALHO, L. J. C. B.
700 1 $aBEVITORI, R.
700 1 $aPURCINO, A. A. C.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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