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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
09/12/2019 |
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Data da última atualização: |
13/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SIMON, M. F.; REIS, T. S.; MENDOZA F. J. M.; ARQUELÃO, T. K. M.; BRINGEL JR. J. B. A.; NORONHA, S. E.; MARTINS, M. L. L.; LEDO, C. A. da S.; SILVA, M. J.; SAMPAIO, A. B.; MATRICARDI, E. T.; SCARIOT, A. |
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Afiliação: |
MARCELO FRAGOMENI SIMON, Cenargen; TALITA S. REIS; J. MOISES MENDOZA F.; THALYSSA K. M. ARQUELÃO; JOÃO B. A. BRINGEL JR.; SERGIO EUSTAQUIO DE NORONHA, Cenargen; MÁRCIO L. L. MARTINS; CARLOS ALBERTO DA SILVA LEDO, CNPMF; MARCOS J. SILVA; ALEXANDRE B. SAMPAIO; ERALDO T. MATRICARDI; ALDICIR OSNI SCARIOT, Cenargen. |
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Título: |
Conservation assessment of cassava wild relatives in central Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Biodiversity and Conservation, v. 29, p. 1589-1612, 2020. |
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DOI: |
10.1007/s10531-018-1626-7 |
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Idioma: |
Inglês |
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Conteúdo: |
Crop wild relatives (CWR) are a key component of the world?s biota since they have the potential to contribute traits for crop improvement. The rich flora of the Brazilian Cerrado harbours a large number of CWR, but little is known about their distribution and conservation status. This study focused on the conservation of cassava (Manihot) wild relatives in the Cerrado. To accomplish this, we performed herbarium and field surveys to assess species conservation status based on geographic distribution, population density estimates, and rates of habitat loss. We found 75 species of Manihot occurring in the Cerrado, including 59 endemics. Among the endemic taxa, 24 are at some level of threat according to IUCN classification (14% Vulnerable, 22% Endangered, 5% Critically endangered), mostly owing to narrow geographic range and habitat loss. Most species are locally abundant, ranging from 55 to 1493 mature individuals per hectare. A quarter of the species recorded have been described over the past 5 years, indicating that the diversity of Manihot in the Cerrado is still underestimated. Areas of high species richness and endemism coincided mostly with Cerrado highlands, particularly in northern Goiás state. Field surveys in 16 reserves indicate that 54% of Cerrado endemics are not represented in these protected areas. We believe that the patterns of distribution and conservation status uncovered here for Manihot are representative of many plant groups that are particularly diverse in high-altitude areas in the Cerrado. This calls for expansion of the network of protected areas to cover a wider range of environments, particularly those with a concentration of rare and endemic species, to ensure the effective in situ conservation of CWR present in the Cerrado flora. MenosCrop wild relatives (CWR) are a key component of the world?s biota since they have the potential to contribute traits for crop improvement. The rich flora of the Brazilian Cerrado harbours a large number of CWR, but little is known about their distribution and conservation status. This study focused on the conservation of cassava (Manihot) wild relatives in the Cerrado. To accomplish this, we performed herbarium and field surveys to assess species conservation status based on geographic distribution, population density estimates, and rates of habitat loss. We found 75 species of Manihot occurring in the Cerrado, including 59 endemics. Among the endemic taxa, 24 are at some level of threat according to IUCN classification (14% Vulnerable, 22% Endangered, 5% Critically endangered), mostly owing to narrow geographic range and habitat loss. Most species are locally abundant, ranging from 55 to 1493 mature individuals per hectare. A quarter of the species recorded have been described over the past 5 years, indicating that the diversity of Manihot in the Cerrado is still underestimated. Areas of high species richness and endemism coincided mostly with Cerrado highlands, particularly in northern Goiás state. Field surveys in 16 reserves indicate that 54% of Cerrado endemics are not represented in these protected areas. We believe that the patterns of distribution and conservation status uncovered here for Manihot are representative of many plant groups that are particularly diverse... Mostrar Tudo |
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Palavras-Chave: |
Crop wild relatives; Endemism; IUCN red list criteria. |
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Thesagro: |
Cerrado; Flora; Mandioca. |
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Thesaurus Nal: |
Cassava; Manihot. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02781naa a2200361 a 4500
001 2116343
005 2020-04-13
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1007/s10531-018-1626-7$2DOI
100 1 $aSIMON, M. F.
245 $aConservation assessment of cassava wild relatives in central Brazil.$h[electronic resource]
260 $c2020
520 $aCrop wild relatives (CWR) are a key component of the world?s biota since they have the potential to contribute traits for crop improvement. The rich flora of the Brazilian Cerrado harbours a large number of CWR, but little is known about their distribution and conservation status. This study focused on the conservation of cassava (Manihot) wild relatives in the Cerrado. To accomplish this, we performed herbarium and field surveys to assess species conservation status based on geographic distribution, population density estimates, and rates of habitat loss. We found 75 species of Manihot occurring in the Cerrado, including 59 endemics. Among the endemic taxa, 24 are at some level of threat according to IUCN classification (14% Vulnerable, 22% Endangered, 5% Critically endangered), mostly owing to narrow geographic range and habitat loss. Most species are locally abundant, ranging from 55 to 1493 mature individuals per hectare. A quarter of the species recorded have been described over the past 5 years, indicating that the diversity of Manihot in the Cerrado is still underestimated. Areas of high species richness and endemism coincided mostly with Cerrado highlands, particularly in northern Goiás state. Field surveys in 16 reserves indicate that 54% of Cerrado endemics are not represented in these protected areas. We believe that the patterns of distribution and conservation status uncovered here for Manihot are representative of many plant groups that are particularly diverse in high-altitude areas in the Cerrado. This calls for expansion of the network of protected areas to cover a wider range of environments, particularly those with a concentration of rare and endemic species, to ensure the effective in situ conservation of CWR present in the Cerrado flora.
650 $aCassava
650 $aManihot
650 $aCerrado
650 $aFlora
650 $aMandioca
653 $aCrop wild relatives
653 $aEndemism
653 $aIUCN red list criteria
700 1 $aREIS, T. S.
700 1 $aMENDOZA F. J. M.
700 1 $aARQUELÃO, T. K. M.
700 1 $aBRINGEL JR. J. B. A.
700 1 $aNORONHA, S. E.
700 1 $aMARTINS, M. L. L.
700 1 $aLEDO, C. A. da S.
700 1 $aSILVA, M. J.
700 1 $aSAMPAIO, A. B.
700 1 $aMATRICARDI, E. T.
700 1 $aSCARIOT, A.
773 $tBiodiversity and Conservation$gv. 29, p. 1589-1612, 2020.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
26/08/2005 |
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Data da última atualização: |
26/08/2005 |
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Autoria: |
HERRMANN, P. S. P. |
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Título: |
Aplicação de microscopia por varredura de sonda em mineralogia. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 28., 2001, Londrina. Ciência do solo: fator de produtividade competitiva com sustentabilidade. Resumos... Londrina: Sociedade Brasileira de Ciência do Solo, 2001. p. 35, ref. P-18. |
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Idioma: |
Português |
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Conteúdo: |
Investigações realizadas em superfície que possibilitam variar a faixa de escala de micrômetros à subnanometro, bem como a medida de forças ultra-baixa exercidas deviao a interação com a superfície utilizando a microscopia de força atômica. |
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Palavras-Chave: |
Microscopia de Força Atômica; subnanometro. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00848naa a2200145 a 4500
001 1029033
005 2005-08-26
008 2001 bl --- 0-- u #d
100 1 $aHERRMANN, P. S. P.
245 $aAplicação de microscopia por varredura de sonda em mineralogia.
260 $c2001
520 $aInvestigações realizadas em superfície que possibilitam variar a faixa de escala de micrômetros à subnanometro, bem como a medida de forças ultra-baixa exercidas deviao a interação com a superfície utilizando a microscopia de força atômica.
653 $aMicroscopia de Força Atômica
653 $asubnanometro
773 $tIn: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 28., 2001, Londrina. Ciência do solo: fator de produtividade competitiva com sustentabilidade. Resumos... Londrina: Sociedade Brasileira de Ciência do Solo, 2001. p. 35, ref. P-18.
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