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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
20/11/1997 |
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Data da última atualização: |
11/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VALICENTE, F. H.; O'NEIL, R. J. |
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Afiliação: |
FERNANDO HERCOS VALICENTE, CNPMS. |
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Título: |
Effects of host plants and feeding regimes on selected life history characteristics of Podisus maculiventris (Say) (Heteroptera: pentatomidae). |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Biological Control, San Diego, v. 5, n. 3, p. 449-461, 1995. |
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Idioma: |
Inglês |
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Conteúdo: |
Effects of two different plants, potato, Solanum. tuberosurn L., and toma to, Lycopersicon esculentum Mill., arrd fceding regimes on selected life history characteristics ofthe predator Podisus maculiventris (Say) were investigated. Prey were third instar Colorado potato beetle, Leptinotarsa decemlineata (Say). Without access to prey, survivo rsh ip was initially higher for P. maculiuentris provided either potato or tomato plants than for predators provided only water. However, no major difference in survivorship was detected after the 35th day of life. Predators provided only plants lived up to 50 days, and predators provided only water lived up to 60 days. Predators provided either plants 01' water lost weight initially but then maintained a low weight throughout the remainder of their lives. In contrast, P. maculiventris having no access to plants or water lost weight continually until death. When feeding on relatively few L. decemlineata, P. maculiventris maintained longevity but decreased reproduction. As the time between feedings ofprey to predators increased, P. maculiventris laid fewer eggs, had lower body weights, and laid eggs later in Iife than those predators feeding on prey more frequently. These results support the concept of a trade-off between longevity and reproduction when P. maculiventris feeds on relatively few prey, This trade-off is not affected by the host plant upon which prey were reared. A tradeoff between longevity and reproduction is consistent with previous studies with P. maculiventris and may help to explain how this predator and others like it can maintain populations in fields where prey are not readily available. MenosEffects of two different plants, potato, Solanum. tuberosurn L., and toma to, Lycopersicon esculentum Mill., arrd fceding regimes on selected life history characteristics ofthe predator Podisus maculiventris (Say) were investigated. Prey were third instar Colorado potato beetle, Leptinotarsa decemlineata (Say). Without access to prey, survivo rsh ip was initially higher for P. maculiuentris provided either potato or tomato plants than for predators provided only water. However, no major difference in survivorship was detected after the 35th day of life. Predators provided only plants lived up to 50 days, and predators provided only water lived up to 60 days. Predators provided either plants 01' water lost weight initially but then maintained a low weight throughout the remainder of their lives. In contrast, P. maculiventris having no access to plants or water lost weight continually until death. When feeding on relatively few L. decemlineata, P. maculiventris maintained longevity but decreased reproduction. As the time between feedings ofprey to predators increased, P. maculiventris laid fewer eggs, had lower body weights, and laid eggs later in Iife than those predators feeding on prey more frequently. These results support the concept of a trade-off between longevity and reproduction when P. maculiventris feeds on relatively few prey, This trade-off is not affected by the host plant upon which prey were reared. A tradeoff between longevity and reproduction is consistent wi... Mostrar Tudo |
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Thesagro: |
Inseto. |
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Thesaurus Nal: |
Insecta. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02204naa a2200157 a 4500
001 1477320
005 2018-06-11
008 1995 bl uuuu u00u1 u #d
100 1 $aVALICENTE, F. H.
245 $aEffects of host plants and feeding regimes on selected life history characteristics of Podisus maculiventris (Say) (Heteroptera$bpentatomidae).$h[electronic resource]
260 $c1995
520 $aEffects of two different plants, potato, Solanum. tuberosurn L., and toma to, Lycopersicon esculentum Mill., arrd fceding regimes on selected life history characteristics ofthe predator Podisus maculiventris (Say) were investigated. Prey were third instar Colorado potato beetle, Leptinotarsa decemlineata (Say). Without access to prey, survivo rsh ip was initially higher for P. maculiuentris provided either potato or tomato plants than for predators provided only water. However, no major difference in survivorship was detected after the 35th day of life. Predators provided only plants lived up to 50 days, and predators provided only water lived up to 60 days. Predators provided either plants 01' water lost weight initially but then maintained a low weight throughout the remainder of their lives. In contrast, P. maculiventris having no access to plants or water lost weight continually until death. When feeding on relatively few L. decemlineata, P. maculiventris maintained longevity but decreased reproduction. As the time between feedings ofprey to predators increased, P. maculiventris laid fewer eggs, had lower body weights, and laid eggs later in Iife than those predators feeding on prey more frequently. These results support the concept of a trade-off between longevity and reproduction when P. maculiventris feeds on relatively few prey, This trade-off is not affected by the host plant upon which prey were reared. A tradeoff between longevity and reproduction is consistent with previous studies with P. maculiventris and may help to explain how this predator and others like it can maintain populations in fields where prey are not readily available.
650 $aInsecta
650 $aInseto
700 1 $aO'NEIL, R. J.
773 $tBiological Control, San Diego$gv. 5, n. 3, p. 449-461, 1995.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
18/01/2023 |
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Data da última atualização: |
18/01/2023 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
NACHTIGALL, G. R.; HAWERROTH, F. J. |
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Afiliação: |
GILMAR RIBEIRO NACHTIGALL, CNPUV; FERNANDO JOSE HAWERROTH, CNPUV. |
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Título: |
Persistência do fenômeno 'La Niña' provoca redução no volume de precipitação pulviométrica nos meses de outubro a dezembro. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Bento Gonçalves: Embrapa Uva e Vinho, 2023. |
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Páginas: |
8 p. |
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Série: |
(Embrapa Uva e Vinho. Boletim agroclimático Campos de Cima da Serra). |
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Idioma: |
Português |
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Notas: |
Dez. 2022. Título: (pulviométrica [i.e. pluviométrica]). |
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Conteúdo: |
A partir dos dados das estações meteorológicas localizadas em Bom Jesus, Caxias do Sul, Lagoa Vermelha e Vacaria, no Rio Grande do Sul, é gerado este Informativo Periódico que agrega os dados climáticos e orientações a partir da visão dos especialistas, no período de setembro a dezembro de 2022, destacando, principalmente, o manejo de macieiras e o desenvolvimento de frutos no período. |
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Thesagro: |
Clima; Evapotranspiração; Fruta de Clima Temperado; Fruticultura; Granizo; Maçã; Manejo; Pluviometria; Pomar; Precipitação Pluvial. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151041/1/Boletim-Agroclimatico-Dezembro-2022.pdf
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Marc: |
LEADER 01308nam a2200277 a 4500
001 2151041
005 2023-01-18
008 2023 bl uuuu u0uu1 u #d
100 1 $aNACHTIGALL, G. R.
245 $aPersistência do fenômeno 'La Niña' provoca redução no volume de precipitação pulviométrica nos meses de outubro a dezembro.$h[electronic resource]
260 $aBento Gonçalves: Embrapa Uva e Vinho$c2023
300 $a8 p.
490 $a(Embrapa Uva e Vinho. Boletim agroclimático Campos de Cima da Serra).
500 $aDez. 2022. Título: (pulviométrica [i.e. pluviométrica]).
520 $aA partir dos dados das estações meteorológicas localizadas em Bom Jesus, Caxias do Sul, Lagoa Vermelha e Vacaria, no Rio Grande do Sul, é gerado este Informativo Periódico que agrega os dados climáticos e orientações a partir da visão dos especialistas, no período de setembro a dezembro de 2022, destacando, principalmente, o manejo de macieiras e o desenvolvimento de frutos no período.
650 $aClima
650 $aEvapotranspiração
650 $aFruta de Clima Temperado
650 $aFruticultura
650 $aGranizo
650 $aMaçã
650 $aManejo
650 $aPluviometria
650 $aPomar
650 $aPrecipitação Pluvial
700 1 $aHAWERROTH, F. J.
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