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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
16/03/2016 |
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Data da última atualização: |
16/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RAMALHO, F. de S.; MALAQUIAS, J. B.; LIRA, A. C. S.; OLIVEIRA, F. Q.; ZANUNCIO, J. C.; FERNANDES, F. S. |
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Afiliação: |
FRANCISCO DE SOUZA RAMALHO, CNPA; JOSE BRUNO MALAQUIAS, CNPA; ALINE CRISTINA SILVA LIRA, DOUTORANDA - UFRPE; FLÁVIA Q. OLIVEIRA, UNESP; JOSÉ COLA ZANUNCIO, UFV; FRANCISCO SALES FERNANDES, USP/ESALQ. |
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Título: |
Temperature-dependent fecundity and life table of the fennel aphid hyadaphis foeniculi (Passerini) (Hemiptera: Aphididae). |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Plos One, v. 10, n. 4, Apr. 2015. |
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Idioma: |
Português |
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Conteúdo: |
Hyadaphis foeniculi (Passerini) (Hemiptera: Aphididae) is a cosmopolitan species and the main pest of fennel in northeastern Brazil. Understanding the relationship between temperature variations and the population growth rates of H. foeniculi is essential to predict the population dynamics of this aphid in the fennel crop. The aim of this study was to measure the effect of constant temperature on the adult prereproductive period and the life table fertility parameters (infinitesimal increase ratio (rm), gross reproduction rate (GRR), net reproduction rate (R0), finite increase ratio (?), generation time (GT), the time required for the population to double in the number of individuals (DT), and the reproduction value (RVx)) of the fennel pest H. foeniculi. The values of lx (survival of nymphs at age x) increased as the temperature rose from 15 to 28°C and fell at 30°C, whereas mx (number of nymphs produced by each nymph of age x) increased from 15 to 25°C and fell at 28 and 30°C. The net reproduction rates (R0) of populations of H. foeniculi increased with temperature and ranged from 1.9 at 15°C to 12.23 at 28°C for each generation. The highest population increase occurred with the apterous aphids at 28°C. The rate of population increase per unit time (rm) (day) ranged from 0.0033 (15°C) to 0.1995 (28°C). The highest values of rm were recorded at temperatures of 28°C and 30°C. The rm values were a good fit to the models tested, with R2 > 0.91 and R2 adj > 0.88. The models tested (Davidson, Sharpe and DeMichele modified by Schoolfield et al., Logan et al., Lamb, and Briere et al.) were very good fits for the rm values observed, with R2 > 0.91 and R2 adj > 0.88. The only exception was the Davidson model. Of the parameters studied, the reproductive capacity was higher in the apterous aphids, with the unique exception of daily fecundity at 28°C, which was higher in the alate aphids of H. foeniculi. Parameters relating to the age-specific fertility table for H. foeniculi were heavily influenced by temperature, with the highest biotic potential and population growth capacity found at 34°C. Therefore, the results obtained in this study could be of practical significance for predicting outbreaks of fennel aphids and improving the management of this aphid in fennel crops. MenosHyadaphis foeniculi (Passerini) (Hemiptera: Aphididae) is a cosmopolitan species and the main pest of fennel in northeastern Brazil. Understanding the relationship between temperature variations and the population growth rates of H. foeniculi is essential to predict the population dynamics of this aphid in the fennel crop. The aim of this study was to measure the effect of constant temperature on the adult prereproductive period and the life table fertility parameters (infinitesimal increase ratio (rm), gross reproduction rate (GRR), net reproduction rate (R0), finite increase ratio (?), generation time (GT), the time required for the population to double in the number of individuals (DT), and the reproduction value (RVx)) of the fennel pest H. foeniculi. The values of lx (survival of nymphs at age x) increased as the temperature rose from 15 to 28°C and fell at 30°C, whereas mx (number of nymphs produced by each nymph of age x) increased from 15 to 25°C and fell at 28 and 30°C. The net reproduction rates (R0) of populations of H. foeniculi increased with temperature and ranged from 1.9 at 15°C to 12.23 at 28°C for each generation. The highest population increase occurred with the apterous aphids at 28°C. The rate of population increase per unit time (rm) (day) ranged from 0.0033 (15°C) to 0.1995 (28°C). The highest values of rm were recorded at temperatures of 28°C and 30°C. The rm values were a good fit to the models tested, with R2 > 0.91 and R2 adj > 0.88. The models tes... Mostrar Tudo |
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Palavras-Chave: |
Aphid; Hemiptera aphididae; Hyadaphis foeniculi. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/141289/1/Temperature-dependent-fecundity-and-life-table....pdf
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Marc: |
LEADER 02984naa a2200217 a 4500
001 2041166
005 2016-03-16
008 2015 bl uuuu u00u1 u #d
100 1 $aRAMALHO, F. de S.
245 $aTemperature-dependent fecundity and life table of the fennel aphid hyadaphis foeniculi (Passerini) (Hemiptera$bAphididae).$h[electronic resource]
260 $c2015
520 $aHyadaphis foeniculi (Passerini) (Hemiptera: Aphididae) is a cosmopolitan species and the main pest of fennel in northeastern Brazil. Understanding the relationship between temperature variations and the population growth rates of H. foeniculi is essential to predict the population dynamics of this aphid in the fennel crop. The aim of this study was to measure the effect of constant temperature on the adult prereproductive period and the life table fertility parameters (infinitesimal increase ratio (rm), gross reproduction rate (GRR), net reproduction rate (R0), finite increase ratio (?), generation time (GT), the time required for the population to double in the number of individuals (DT), and the reproduction value (RVx)) of the fennel pest H. foeniculi. The values of lx (survival of nymphs at age x) increased as the temperature rose from 15 to 28°C and fell at 30°C, whereas mx (number of nymphs produced by each nymph of age x) increased from 15 to 25°C and fell at 28 and 30°C. The net reproduction rates (R0) of populations of H. foeniculi increased with temperature and ranged from 1.9 at 15°C to 12.23 at 28°C for each generation. The highest population increase occurred with the apterous aphids at 28°C. The rate of population increase per unit time (rm) (day) ranged from 0.0033 (15°C) to 0.1995 (28°C). The highest values of rm were recorded at temperatures of 28°C and 30°C. The rm values were a good fit to the models tested, with R2 > 0.91 and R2 adj > 0.88. The models tested (Davidson, Sharpe and DeMichele modified by Schoolfield et al., Logan et al., Lamb, and Briere et al.) were very good fits for the rm values observed, with R2 > 0.91 and R2 adj > 0.88. The only exception was the Davidson model. Of the parameters studied, the reproductive capacity was higher in the apterous aphids, with the unique exception of daily fecundity at 28°C, which was higher in the alate aphids of H. foeniculi. Parameters relating to the age-specific fertility table for H. foeniculi were heavily influenced by temperature, with the highest biotic potential and population growth capacity found at 34°C. Therefore, the results obtained in this study could be of practical significance for predicting outbreaks of fennel aphids and improving the management of this aphid in fennel crops.
653 $aAphid
653 $aHemiptera aphididae
653 $aHyadaphis foeniculi
700 1 $aMALAQUIAS, J. B.
700 1 $aLIRA, A. C. S.
700 1 $aOLIVEIRA, F. Q.
700 1 $aZANUNCIO, J. C.
700 1 $aFERNANDES, F. S.
773 $tPlos One$gv. 10, n. 4, Apr. 2015.
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Registro original: |
Embrapa Algodão (CNPA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
06/01/2015 |
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Data da última atualização: |
26/05/2023 |
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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: |
ALFARO, M. R.; MONTERO, A.; UGARTE, O. M.; NASCIMENTO, C. W. A. do; ACCIOLY, A. M. de A.; BIONDI, C. M.; SILVA, Y. J. A. B. da. |
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Afiliação: |
MIRELYS RODRÍGUEZ ALFARO, Instituto de Suelos; ALFREDO MONTERO, CEADEN; OLEGARIO MUÑIZ UGARTE; CLÍSTENES WILLIAMS ARAÚJO DO NASCIMENTO; ADRIANA MARIA DE AGUIAR ACCIOLY, CNPMF; CAROLINE MIRANDA BIONDI, UFRPE; YGOR JACQUES AGRA BEZERRA DA SILVA, UFRPE. |
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Título: |
Background concentrations and reference values for heavy metals in soils of Cuba. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Environmental Monitoring and Assessment, v.187, p. 4198, 2015. |
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DOI: |
10.1007/s10661-014-4198-3 |
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Idioma: |
Inglês |
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Conteúdo: |
The potential threat of heavy metals to human health has led to many studies on permissible levels of these elements in soils. The objective of this study was to establish quality reference values (QRVs) for Cd, Pb, Zn, Cu, Ni, Cr, Fe, Mn, As, Hg, V, Ba, Sb, Ag, Co, and Mo in soils of Cuba. Geochemical associations between trace elements and Fe were also studied, aiming to provide an index for establishing background concentrations of metals in soils. Surface samples of 33 soil profiles from areas of native forest or minimal anthropic influence were collected. Samples were digested (USEPA method 3051A), and the metals were determined by ICP-OES. The natural concentrations of metals in soils of Cuba followed the order Fe>Mn>Ni>Cr>Ba>V>Zn>Cu>Pb>Co>As>Sb>Ag>Cd>Mo>Hg. The QRVs found for Cuban soils were as follows (mg kg?1): Ag (1), Ba (111), Cd (0.6), Co (25), Cr (153), Cu (83), Fe (54,055), Mn (1947), Ni (170), Pb (50), Sb (6), V (137), Zn (86), Mo (0.1), As (19), and Hg (0.1). The average natural levels of heavy metals are above the global average, especially for Ni and Cr. The chemical fractionation of soil samples presenting anomalous concentrations of metals showed that Cu, Ni, Cr, Sb, and As have low bioavailability. This suggests that the risk of contamination of agricultural products via plant uptake is low. However, the final decision on the establishment of soil QRVs in Cuba depends on political, economic, and social issues and in-depth risk analyses considering all routes of exposure to these elements. MenosThe potential threat of heavy metals to human health has led to many studies on permissible levels of these elements in soils. The objective of this study was to establish quality reference values (QRVs) for Cd, Pb, Zn, Cu, Ni, Cr, Fe, Mn, As, Hg, V, Ba, Sb, Ag, Co, and Mo in soils of Cuba. Geochemical associations between trace elements and Fe were also studied, aiming to provide an index for establishing background concentrations of metals in soils. Surface samples of 33 soil profiles from areas of native forest or minimal anthropic influence were collected. Samples were digested (USEPA method 3051A), and the metals were determined by ICP-OES. The natural concentrations of metals in soils of Cuba followed the order Fe>Mn>Ni>Cr>Ba>V>Zn>Cu>Pb>Co>As>Sb>Ag>Cd>Mo>Hg. The QRVs found for Cuban soils were as follows (mg kg?1): Ag (1), Ba (111), Cd (0.6), Co (25), Cr (153), Cu (83), Fe (54,055), Mn (1947), Ni (170), Pb (50), Sb (6), V (137), Zn (86), Mo (0.1), As (19), and Hg (0.1). The average natural levels of heavy metals are above the global average, especially for Ni and Cr. The chemical fractionation of soil samples presenting anomalous concentrations of metals showed that Cu, Ni, Cr, Sb, and As have low bioavailability. This suggests that the risk of contamination of agricultural products via plant uptake is low. However, the final decision on the establishment of soil QRVs in Cuba depends on political, economic, and social issues and in-depth risk analyses considering all r... Mostrar Tudo |
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Thesagro: |
Metal pesado; Solo. |
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Thesaurus NAL: |
Heavy metals; Soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02305naa a2200253 a 4500
001 2004440
005 2023-05-26
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1007/s10661-014-4198-3$2DOI
100 1 $aALFARO, M. R.
245 $aBackground concentrations and reference values for heavy metals in soils of Cuba.$h[electronic resource]
260 $c2015
520 $aThe potential threat of heavy metals to human health has led to many studies on permissible levels of these elements in soils. The objective of this study was to establish quality reference values (QRVs) for Cd, Pb, Zn, Cu, Ni, Cr, Fe, Mn, As, Hg, V, Ba, Sb, Ag, Co, and Mo in soils of Cuba. Geochemical associations between trace elements and Fe were also studied, aiming to provide an index for establishing background concentrations of metals in soils. Surface samples of 33 soil profiles from areas of native forest or minimal anthropic influence were collected. Samples were digested (USEPA method 3051A), and the metals were determined by ICP-OES. The natural concentrations of metals in soils of Cuba followed the order Fe>Mn>Ni>Cr>Ba>V>Zn>Cu>Pb>Co>As>Sb>Ag>Cd>Mo>Hg. The QRVs found for Cuban soils were as follows (mg kg?1): Ag (1), Ba (111), Cd (0.6), Co (25), Cr (153), Cu (83), Fe (54,055), Mn (1947), Ni (170), Pb (50), Sb (6), V (137), Zn (86), Mo (0.1), As (19), and Hg (0.1). The average natural levels of heavy metals are above the global average, especially for Ni and Cr. The chemical fractionation of soil samples presenting anomalous concentrations of metals showed that Cu, Ni, Cr, Sb, and As have low bioavailability. This suggests that the risk of contamination of agricultural products via plant uptake is low. However, the final decision on the establishment of soil QRVs in Cuba depends on political, economic, and social issues and in-depth risk analyses considering all routes of exposure to these elements.
650 $aHeavy metals
650 $aSoil
650 $aMetal pesado
650 $aSolo
700 1 $aMONTERO, A.
700 1 $aUGARTE, O. M.
700 1 $aNASCIMENTO, C. W. A. do
700 1 $aACCIOLY, A. M. de A.
700 1 $aBIONDI, C. M.
700 1 $aSILVA, Y. J. A. B. da
773 $tEnvironmental Monitoring and Assessment$gv.187, p. 4198, 2015.
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