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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
15/05/2015 |
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Data da última atualização: |
23/10/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LANI, J. L.; SCHWANDES, L.; REZENDE, S. B. de.; LANI, J. A.; AMARAL, E. F. do; CUNHA, A. de M.; COSTA, L. M. da |
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Afiliação: |
João Luiz Lani, Incaper; Larry Schwandes; Sérvulo Batista de Rezende; José Antônio Lani, Incaper; Eufran Ferreira do Amaral; Alexson de Mello Cunha; Liovando Marciano da Costa. |
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Título: |
Uso de opalas biogênicas na identificação de sedimentos lacustres e marinhos |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, v. 31, n. 4, p. 827-832, agos. 2007. |
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Idioma: |
Português |
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Conteúdo: |
Procurou-se utilizar opalas biogênicas, também conhecidas como espículas ou "pó-de-mico", como identificadoras de sedimentos lacustres ou marinhos. Para isso, analisaram-se camadas e horizontes de um Gleissolo Tiomórfico Húmico na região do rio Riacho, Aracruz, ES. Cada amostra de solo foi submetida a tratamentos específicos para o isolamento das espículas; posteriormente, elas foram identificadas em microscópico eletrônico de varredura. Verificou-se a presença de espículas de origem tanto lacustre como marinha e que estas, além de serem úteis na identificação da origem dos sedimentos, podem propiciar, pela sua forma, as condições geoquímicas do ambiente e a distância de transporte dos sedimentos.
This study aimed to identify lacustrine or marine sediments based on biogenic opals (also known as spicules). The layers and horizons of a Humic Gley Thiomorphic soil in the Riacho catchment area, Aracruz, state of Espirito Santo, Brazil, were analyzed. Each soil sample was specifically treated to isolate the spicules, which were then identified by an electronic microscope. It was possible to verify the presence of lacustrine as well as marine spicules. Moreover, the shape of the opals provided information on the conditions of the geochemical environment and transport distance of the sediments. |
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Palavras-Chave: |
Gleissolos; Indicadores ambientais; Solos hidromórficos. |
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Thesaurus NAL: |
Environmental indicators; Gleysoils; Hydromorphic soils. |
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Categoria do assunto: |
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URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/764/1/lani.pdf
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Marc: |
LEADER 02134naa a2200265 a 4500
001 1006473
005 2015-10-23
008 2007 bl uuuu u00u1 u #d
100 1 $aLANI, J. L.
245 $aUso de opalas biogênicas na identificação de sedimentos lacustres e marinhos$h[electronic resource]
260 $c2007
520 $aProcurou-se utilizar opalas biogênicas, também conhecidas como espículas ou "pó-de-mico", como identificadoras de sedimentos lacustres ou marinhos. Para isso, analisaram-se camadas e horizontes de um Gleissolo Tiomórfico Húmico na região do rio Riacho, Aracruz, ES. Cada amostra de solo foi submetida a tratamentos específicos para o isolamento das espículas; posteriormente, elas foram identificadas em microscópico eletrônico de varredura. Verificou-se a presença de espículas de origem tanto lacustre como marinha e que estas, além de serem úteis na identificação da origem dos sedimentos, podem propiciar, pela sua forma, as condições geoquímicas do ambiente e a distância de transporte dos sedimentos. This study aimed to identify lacustrine or marine sediments based on biogenic opals (also known as spicules). The layers and horizons of a Humic Gley Thiomorphic soil in the Riacho catchment area, Aracruz, state of Espirito Santo, Brazil, were analyzed. Each soil sample was specifically treated to isolate the spicules, which were then identified by an electronic microscope. It was possible to verify the presence of lacustrine as well as marine spicules. Moreover, the shape of the opals provided information on the conditions of the geochemical environment and transport distance of the sediments.
650 $aEnvironmental indicators
650 $aGleysoils
650 $aHydromorphic soils
653 $aGleissolos
653 $aIndicadores ambientais
653 $aSolos hidromórficos
700 1 $aSCHWANDES, L.
700 1 $aREZENDE, S. B. de.
700 1 $aLANI, J. A.
700 1 $aAMARAL, E. F. do
700 1 $aCUNHA, A. de M.
700 1 $aCOSTA, L. M. da
773 $tRevista Brasileira de Ciência do Solo, Viçosa$gv. 31, n. 4, p. 827-832, agos. 2007.
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Registro original: |
Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
25/09/2023 |
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Data da última atualização: |
25/09/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GOMES, I. N.; GONTIJO, L. M.; LIMA, M. A. P.; ZANÚNCIO JUNIOR, J. S.; RESENDE, H. C. |
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Afiliação: |
Ingrid N. Gomes; Lessando Moreira Gontijo; Maria Augusta Pereira Lima; José Salazar Zanuncio Junior, Incaper; Helder Canto Resende. |
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Título: |
The survival and flight capacity of commercial honeybees and endangered stingless bees are impaired by common agrochemicals. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Ecotoxicology, 2023. |
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DOI: |
10.1007/s10646-023-02699-8 |
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Idioma: |
Inglês |
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Conteúdo: |
The impact of agrochemicals on native Brazilian bees may be underestimated, since studies of non-target effects on bees have, by and large, concerned mostly the Apis mellifera L. Furthermore, bees may be exposed in the field to multiple agrochemicals through different routes, thus suggesting the necessity for more comprehensive toxicological experiments. Here, we assessed the lethal and sublethal toxicity of multiple agrochemicals (herbicide [glyphosate ? Roundup®], fungicide [mancozeb], insecticide [thiamethoxam]) through distinct routes of exposure (contact or ingestion) to an endangered native Brazilian bee Melipona (Michmelia) capixaba Moure & Camargo, 1994 and to A. mellifera. Results indicate that none of the agrochemicals caused feeding repellency on the bees. Thiamethoxam caused high mortality of both species, regardless of the route of exposure or the dose used. In addition, thiametoxam altered the flight capacity of M. capixaba when exposed to the lowest dose via contact exposure. The field dose of glyphosate caused high mortality of both bee species after oral exposure as well as impaired the flight capacity of A. mellifera (ingestion exposure) and M. capixaba (contact exposure). The lower dose of glyphosate also impaired the flight of M. capixaba through either routes of exposure. Exposure of A. mellifera through contact and ingestion to both doses of mancozeb caused high mortality and significantly impaired flight capacity. Taken altogether, the results highlight the importance of testing the impact of multiple agrochemicals (i.e. not just insecticides) through different routes of exposure in order to understand more comprehensively the potential risks for Apis and non-Apis bees. MenosThe impact of agrochemicals on native Brazilian bees may be underestimated, since studies of non-target effects on bees have, by and large, concerned mostly the Apis mellifera L. Furthermore, bees may be exposed in the field to multiple agrochemicals through different routes, thus suggesting the necessity for more comprehensive toxicological experiments. Here, we assessed the lethal and sublethal toxicity of multiple agrochemicals (herbicide [glyphosate ? Roundup®], fungicide [mancozeb], insecticide [thiamethoxam]) through distinct routes of exposure (contact or ingestion) to an endangered native Brazilian bee Melipona (Michmelia) capixaba Moure & Camargo, 1994 and to A. mellifera. Results indicate that none of the agrochemicals caused feeding repellency on the bees. Thiamethoxam caused high mortality of both species, regardless of the route of exposure or the dose used. In addition, thiametoxam altered the flight capacity of M. capixaba when exposed to the lowest dose via contact exposure. The field dose of glyphosate caused high mortality of both bee species after oral exposure as well as impaired the flight capacity of A. mellifera (ingestion exposure) and M. capixaba (contact exposure). The lower dose of glyphosate also impaired the flight of M. capixaba through either routes of exposure. Exposure of A. mellifera through contact and ingestion to both doses of mancozeb caused high mortality and significantly impaired flight capacity. Taken altogether, the results highlig... Mostrar Tudo |
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Palavras-Chave: |
Glifosato. |
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Thesagro: |
Abelha; Agrotóxico; Espécie em Extinção. |
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Categoria do assunto: |
-- |
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URL: |
https://link.springer.com/article/10.1007/s10646-023-02699-8
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Marc: |
LEADER 02366nam a2200217 a 4500
001 1025073
005 2023-09-25
008 2023 bl uuuu u0uu1 u #d
024 7 $a10.1007/s10646-023-02699-8$2DOI
100 1 $aGOMES, I. N.
245 $aThe survival and flight capacity of commercial honeybees and endangered stingless bees are impaired by common agrochemicals.
260 $aEcotoxicology$c2023
520 $aThe impact of agrochemicals on native Brazilian bees may be underestimated, since studies of non-target effects on bees have, by and large, concerned mostly the Apis mellifera L. Furthermore, bees may be exposed in the field to multiple agrochemicals through different routes, thus suggesting the necessity for more comprehensive toxicological experiments. Here, we assessed the lethal and sublethal toxicity of multiple agrochemicals (herbicide [glyphosate ? Roundup®], fungicide [mancozeb], insecticide [thiamethoxam]) through distinct routes of exposure (contact or ingestion) to an endangered native Brazilian bee Melipona (Michmelia) capixaba Moure & Camargo, 1994 and to A. mellifera. Results indicate that none of the agrochemicals caused feeding repellency on the bees. Thiamethoxam caused high mortality of both species, regardless of the route of exposure or the dose used. In addition, thiametoxam altered the flight capacity of M. capixaba when exposed to the lowest dose via contact exposure. The field dose of glyphosate caused high mortality of both bee species after oral exposure as well as impaired the flight capacity of A. mellifera (ingestion exposure) and M. capixaba (contact exposure). The lower dose of glyphosate also impaired the flight of M. capixaba through either routes of exposure. Exposure of A. mellifera through contact and ingestion to both doses of mancozeb caused high mortality and significantly impaired flight capacity. Taken altogether, the results highlight the importance of testing the impact of multiple agrochemicals (i.e. not just insecticides) through different routes of exposure in order to understand more comprehensively the potential risks for Apis and non-Apis bees.
650 $aAbelha
650 $aAgrotóxico
650 $aEspécie em Extinção
653 $aGlifosato
700 1 $aGONTIJO, L. M.
700 1 $aLIMA, M. A. P.
700 1 $aZANÚNCIO JUNIOR, J. S.
700 1 $aRESENDE, H. C.
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Biblioteca Rui Tendinha (BRT) |
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