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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
15/03/2017 |
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Actualizado : |
28/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MARTÍNEZ, G.; FINOZZI, M.V.; CANTERO, G.; SOLER, R.; DICKE, M.; GONZÁLEZ, A. |
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Afiliación : |
GONZALO ANIBAL MARTINEZ CROSA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA VICTORIA FINOZZI, Laboratory of Chemical Ecology, Faculty of Chemistry, Universidad de la República, Uruguay.; ANA GISSEL CANTERO DUARTE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROXINA SOLER, Plant-Microbe Interactions, R&DMicrobiology, Koppert Biological Systems, The Netherlands.; MARCEL DICKE, Laboratory of Entomology, Wageningen University, The Netherlands.; ANDRÉS GONZÁLEZ. |
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Título : |
Oviposition preference but not adult feeding preference matches with offspring performance in the bronze bug Thaumastocoris peregrinus. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Entomologia Experimentalis et Applicata, v. 163, no. 1, 2017. |
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DOI : |
10.1111/eea.12554 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted 14 November 2016. |
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Contenido : |
Optimal foraging and optimal oviposition are two major forces leading to plant selection by insect females, but the contribution of these forces to the host-selection process has been little studied for sucking herbivores. We studied feeding and oviposition behavior of a global pest, the bronze bug, Thaumastocoris peregrinus Carpintero & Dellape (Heteroptera: Thaumastocoridae), using dualchoice bioassays to evaluate the preference of females between host species, developmental leaf stage, or prior plant exposure to conspecifics. We assessed the link between these preferences and the performance of the offspring, by comparing survival and developmental time of nymphs reared on the various treatments. Finally, we compared the composition of the leaf wax of healthy and damaged leaves, and tested the effects of leaf wax on female preference behavior. Using healthy adult leaves of Eucalyptus tereticornis Sm. (Myrtaceae) as a reference, we found that females prefer to feed on Eucalyptus
grandisW. Hill ex Maiden and E. tereticornis adult leaves that had been previously damaged by female conspecifics, whereas they reject juvenile leaves of E. tereticornis as food. Females also prefer to oviposit on leaves previously damaged by conspecifics but they rejected E. grandis as oviposition substrate. Nymphal performance varied among leaf treatments, suggesting a correlation with oviposition preference (but not feeding preference). Epicuticular wax extracts from damaged leaves contained
higher concentrations of long-chain, saturated linear alkanes, aldehydes, and alcohols than extracts from undamaged leaves. However, a choice assay failed to demonstrate an oviposition preference based on leaf surface wax chemistry. We discuss these findings in the context of the preference performance relationship. MenosOptimal foraging and optimal oviposition are two major forces leading to plant selection by insect females, but the contribution of these forces to the host-selection process has been little studied for sucking herbivores. We studied feeding and oviposition behavior of a global pest, the bronze bug, Thaumastocoris peregrinus Carpintero & Dellape (Heteroptera: Thaumastocoridae), using dualchoice bioassays to evaluate the preference of females between host species, developmental leaf stage, or prior plant exposure to conspecifics. We assessed the link between these preferences and the performance of the offspring, by comparing survival and developmental time of nymphs reared on the various treatments. Finally, we compared the composition of the leaf wax of healthy and damaged leaves, and tested the effects of leaf wax on female preference behavior. Using healthy adult leaves of Eucalyptus tereticornis Sm. (Myrtaceae) as a reference, we found that females prefer to feed on Eucalyptus
grandisW. Hill ex Maiden and E. tereticornis adult leaves that had been previously damaged by female conspecifics, whereas they reject juvenile leaves of E. tereticornis as food. Females also prefer to oviposit on leaves previously damaged by conspecifics but they rejected E. grandis as oviposition substrate. Nymphal performance varied among leaf treatments, suggesting a correlation with oviposition preference (but not feeding preference). Epicuticular wax extracts from damaged leaves contained
hig... Presentar Todo |
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Palabras claves : |
DUAL-CHOICE ASSAY; FORESTRY PESTS; HETEROPTERA; HOST SELECTION; LEAF EPICUTICULAR WAX; MOTYHER-KNOWS-BEST HYPOTHESIS; PREFERENCE-PERFORMANCE LINKAGE; THAUMASTOCORIDAE; TRUE BUGS. |
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Thesagro : |
PLAGAS FORESTALES. |
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Asunto categoría : |
H10 Plagas de las plantas |
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Marc : |
LEADER 02843naa a2200325 a 4500
001 1056837
005 2019-10-28
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1111/eea.12554$2DOI
100 1 $aMARTÍNEZ, G.
245 $aOviposition preference but not adult feeding preference matches with offspring performance in the bronze bug Thaumastocoris peregrinus.$h[electronic resource]
260 $c2017
500 $aArticle history: Accepted 14 November 2016.
520 $aOptimal foraging and optimal oviposition are two major forces leading to plant selection by insect females, but the contribution of these forces to the host-selection process has been little studied for sucking herbivores. We studied feeding and oviposition behavior of a global pest, the bronze bug, Thaumastocoris peregrinus Carpintero & Dellape (Heteroptera: Thaumastocoridae), using dualchoice bioassays to evaluate the preference of females between host species, developmental leaf stage, or prior plant exposure to conspecifics. We assessed the link between these preferences and the performance of the offspring, by comparing survival and developmental time of nymphs reared on the various treatments. Finally, we compared the composition of the leaf wax of healthy and damaged leaves, and tested the effects of leaf wax on female preference behavior. Using healthy adult leaves of Eucalyptus tereticornis Sm. (Myrtaceae) as a reference, we found that females prefer to feed on Eucalyptus grandisW. Hill ex Maiden and E. tereticornis adult leaves that had been previously damaged by female conspecifics, whereas they reject juvenile leaves of E. tereticornis as food. Females also prefer to oviposit on leaves previously damaged by conspecifics but they rejected E. grandis as oviposition substrate. Nymphal performance varied among leaf treatments, suggesting a correlation with oviposition preference (but not feeding preference). Epicuticular wax extracts from damaged leaves contained higher concentrations of long-chain, saturated linear alkanes, aldehydes, and alcohols than extracts from undamaged leaves. However, a choice assay failed to demonstrate an oviposition preference based on leaf surface wax chemistry. We discuss these findings in the context of the preference performance relationship.
650 $aPLAGAS FORESTALES
653 $aDUAL-CHOICE ASSAY
653 $aFORESTRY PESTS
653 $aHETEROPTERA
653 $aHOST SELECTION
653 $aLEAF EPICUTICULAR WAX
653 $aMOTYHER-KNOWS-BEST HYPOTHESIS
653 $aPREFERENCE-PERFORMANCE LINKAGE
653 $aTHAUMASTOCORIDAE
653 $aTRUE BUGS
700 1 $aFINOZZI, M.V.
700 1 $aCANTERO, G.
700 1 $aSOLER, R.
700 1 $aDICKE, M.
700 1 $aGONZÁLEZ, A.
773 $tEntomologia Experimentalis et Applicata$gv. 163, no. 1, 2017.
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
12/09/2014 |
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Actualizado : |
11/02/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 2 |
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Autor : |
PARUELO, J.M.; PIÑEIRO, G.; BALDI, G.; BAEZA, S.; LEZAMA, F.; ALTESOR, A.; OESTERHELD, M. |
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Afiliación : |
FELIPE LEZAMA HUERTA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Carbon stocks and fluxes in rangelands of the Río de la plata basin. |
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Fecha de publicación : |
2010 |
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Fuente / Imprenta : |
Rangeland Ecology & Management, 2010, v. 63, no. 1 p. 94-108. |
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Volumen : |
63 |
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ISSN : |
1551-5028 |
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DOI : |
10.2111/08-055.1 |
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Idioma : |
Inglés |
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Notas : |
Article history: Manuscript received 17 March 2008; manuscript accepted 3 April 2009. |
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Contenido : |
ABSTRACT:
Grasslands are one of the most modified biomes on Earth. Land use changes had a large impact on carbon (C) stocks of grasslands. Understanding the impact of land use/land cover changes on C stocks and fluxes is critical to evaluate the potential of rangeland ecosystem as C sinks. In this article we analyze C stocks and fluxes across the environmental gradients of one of the most extensive temperate rangeland areas: the Rio de la Plata Grasslands (RPG) in South America. The analysis summarizes information provided by field studies, remote sensing estimates, and modeling exercises. Average estimates of aboveground net primary production ( ANPP) ranged from 240 to 316 gC · m~2 · yr"1. Estimates of belowgro und NPP(BNPP) were more variable than ANPP and ranged from 264 to 568 g C · m~2 · yr"1. Total Carbon ranged from 5 004 to 15 008 g C · m~2. Plant biomass contribution to Total Carbon averaged 13 % and varied from 9.5% to 27% among sites. The largest plant C stock corresponded to belowground biomass. Aboveground green biomass represented less than 7% of the plant C. Soil organic carbon (SOC) was concentrated in the slow and passive compartments of the organic matter. Active soil pool represented only 6.7% of the SOC. The understanding of C dynamics and stocks in the RPG grasslands is still partial and incomplete. Field estimates of ANPP and BNPP are scarce, and they are not based on a common measurement protocol. Remotely sensed techniques have the potential to generate a coherent and spatially explicit database on ANPP. However, more work is needed to improve estimates of the spatial and temporal variability of radiation use efficiency. The absence of a flux tower network restricts the ability to track seasonal changes in C uptake and to understand fine-scale controls of C dynamics. MenosABSTRACT:
Grasslands are one of the most modified biomes on Earth. Land use changes had a large impact on carbon (C) stocks of grasslands. Understanding the impact of land use/land cover changes on C stocks and fluxes is critical to evaluate the potential of rangeland ecosystem as C sinks. In this article we analyze C stocks and fluxes across the environmental gradients of one of the most extensive temperate rangeland areas: the Rio de la Plata Grasslands (RPG) in South America. The analysis summarizes information provided by field studies, remote sensing estimates, and modeling exercises. Average estimates of aboveground net primary production ( ANPP) ranged from 240 to 316 gC · m~2 · yr"1. Estimates of belowgro und NPP(BNPP) were more variable than ANPP and ranged from 264 to 568 g C · m~2 · yr"1. Total Carbon ranged from 5 004 to 15 008 g C · m~2. Plant biomass contribution to Total Carbon averaged 13 % and varied from 9.5% to 27% among sites. The largest plant C stock corresponded to belowground biomass. Aboveground green biomass represented less than 7% of the plant C. Soil organic carbon (SOC) was concentrated in the slow and passive compartments of the organic matter. Active soil pool represented only 6.7% of the SOC. The understanding of C dynamics and stocks in the RPG grasslands is still partial and incomplete. Field estimates of ANPP and BNPP are scarce, and they are not based on a common measurement protocol. Remotely sensed techniques have the potential to gener... Presentar Todo |
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Palabras claves : |
ABOVEGROUND NET PRIMARY PRODUCTION; BELOWGROUND NET PRIMARY PRODUCTION; CENTURY MODEL; CUENCA DEL RIO DE LA PLATA; LAND USE - LAND COVER CHANGES; REMOTE SENSING. |
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Thesagro : |
CARBONO; MEDICIONES; MODELOS MATEMATICOS; PASTIZALES; TELEDETECCION. |
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Asunto categoría : |
F40 Ecología vegetal |
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Marc : |
LEADER 02971naa a2200385 a 4500
001 1050201
005 2019-02-11
008 2010 bl uuuu u00u1 u #d
022 $a1551-5028
024 7 $a10.2111/08-055.1$2DOI
100 1 $aPARUELO, J.M.
245 $aCarbon stocks and fluxes in rangelands of the Río de la plata basin.$h[electronic resource]
260 $c2010
300 $a63
490 $v63
500 $aArticle history: Manuscript received 17 March 2008; manuscript accepted 3 April 2009.
520 $aABSTRACT: Grasslands are one of the most modified biomes on Earth. Land use changes had a large impact on carbon (C) stocks of grasslands. Understanding the impact of land use/land cover changes on C stocks and fluxes is critical to evaluate the potential of rangeland ecosystem as C sinks. In this article we analyze C stocks and fluxes across the environmental gradients of one of the most extensive temperate rangeland areas: the Rio de la Plata Grasslands (RPG) in South America. The analysis summarizes information provided by field studies, remote sensing estimates, and modeling exercises. Average estimates of aboveground net primary production ( ANPP) ranged from 240 to 316 gC · m~2 · yr"1. Estimates of belowgro und NPP(BNPP) were more variable than ANPP and ranged from 264 to 568 g C · m~2 · yr"1. Total Carbon ranged from 5 004 to 15 008 g C · m~2. Plant biomass contribution to Total Carbon averaged 13 % and varied from 9.5% to 27% among sites. The largest plant C stock corresponded to belowground biomass. Aboveground green biomass represented less than 7% of the plant C. Soil organic carbon (SOC) was concentrated in the slow and passive compartments of the organic matter. Active soil pool represented only 6.7% of the SOC. The understanding of C dynamics and stocks in the RPG grasslands is still partial and incomplete. Field estimates of ANPP and BNPP are scarce, and they are not based on a common measurement protocol. Remotely sensed techniques have the potential to generate a coherent and spatially explicit database on ANPP. However, more work is needed to improve estimates of the spatial and temporal variability of radiation use efficiency. The absence of a flux tower network restricts the ability to track seasonal changes in C uptake and to understand fine-scale controls of C dynamics.
650 $aCARBONO
650 $aMEDICIONES
650 $aMODELOS MATEMATICOS
650 $aPASTIZALES
650 $aTELEDETECCION
653 $aABOVEGROUND NET PRIMARY PRODUCTION
653 $aBELOWGROUND NET PRIMARY PRODUCTION
653 $aCENTURY MODEL
653 $aCUENCA DEL RIO DE LA PLATA
653 $aLAND USE - LAND COVER CHANGES
653 $aREMOTE SENSING
700 1 $aPIÑEIRO, G.
700 1 $aBALDI, G.
700 1 $aBAEZA, S.
700 1 $aLEZAMA, F.
700 1 $aALTESOR, A.
700 1 $aOESTERHELD, M.
773 $tRangeland Ecology & Management, 2010$gv. 63, no. 1 p. 94-108.
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