Search Results - "Ponsard, S"

Can deuterium stable isotope values be used to assign the geographic origin of an auxiliary hoverfly in south-western France? by Ouin, A., Menozzi, P., Coulon, M., Hamilton, A. J., Sarthou, J. P., Tsafack, N., Vialatte, A., Ponsard, S.

“…Deuterium δD isotopic analysis is increasingly being used to trace wildlife movement, and undoubtedly has much to offer in this respect, but questions still…”
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Genetic structure and gene flow in French populations of two Ostrinia taxa: host races or sibling species by MALAUSA, T, DALECKY, A, PONSARD, S, AUDIOT, P, STREIFF, R, CHAVAL, Y, BOURGUET, D

“…Most models of ecological speciation concern phytophagous insects in which speciation is thought to be driven by host shifts and subsequent adaptations of…”
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From Russia with lobe: genetic differentiation in trilobed uncus Ostrinia spp. follows food plant, not hairy legs by Frolov, A N, Audiot, P, Bourguet, D, Kononchuk, A G, Malysh, J M, Ponsard, S, Streiff, R, Tokarev, Y S

“…Trilobed uncus taxa of the genus Ostrinia (Lepidoptera, Crambidae) illustrate the complex relationship, at early stages of speciation, between reproductive…”
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Acceptability and suitability of the European Ostrinia nubilalis Hübner for Macrocentrus cingulum Brischke from Asia and Europe by Campan, E.D.M., Havard, S., Sagouis, A., Pélissier, C., Muller, F.J., Villemant, C., Savriama, Y., Guéry, D., Hu, J., Ponsard, S.

“…[Display omitted] •In Asia, the parasitoid M. cingulum parasitizes the maize pest Ostrinia furnacalis.•In Europe, the maize pest O. nubilalis is not a suitable…”
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Managing the evolution of Bacillus thuringiensis resistance in natural populations of the European corn borer, Ostrinia nubilalis; host plant, host race and pherotype of adult males at aggregation sites by Bontemps, A, Bourguet, D, Pelozuelo, L, Bethenod, M.T, Ponsard, S

“…The European corn borer (ECB) consists of at least two, genetically differentiated host races: one feeding on maize, the other feeding on mugwort and hop. It…”
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Did the introduction of maize into Europe provide enemy-free space to Ostrinia nubilalis? Parasitism differences between two sibling species of the genus Ostrinia by PÉLISSIÉ, B, PONSARD, S, TOKAREV, Y.S, AUDIOT, P, PÉLISSIER, C, SABATIER, R, MEUSNIER, S, CHAUFAUX, J, DELOS, M, CAMPAN, E, MALYSH, J.M, FROLOV, A.N, BOURGUET, D

“…We examined whether maize offers enemy-free space (EFS) to its pest Ostrinia nubilalis, and may thereby have contributed to its divergence from the sibling…”
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Differences in oviposition behaviour of two sympatric sibling species of the genus Ostrinia by Malausa, T, Pélissié, B, Piveteau, V, Pélissier, C, Bourguet, D, Ponsard, S

“…Changes in host preferences are thought to be a major source of genetic divergence between phytophagous insect taxa. In western Europe, two sympatric taxa, O…”
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What Can Stable Isotopes (δ 15 N and δ 13 C) Tell about the Food Web of Soil Macro-Invertebrates? by Ponsard, Sergine, Arditi, Roger

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Using stable isotopes to trace origin and host plants of an African polyphagous pest and an European beneficial insect by Menozzi, P, Ouin, A, Achaleke, J, Coulon, M, Sarthou, J P, Ponsard, S

“…Crop protection against insect pests requires first a good knowledge of the biology and ecology of the different pest species and the associated beneficials,…”
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What Can Stable Isotopes (δ15N and δ13C) Tell about the Food Web of Soil Macro-Invertebrates? by Ponsard, Sergine, Arditi, Roger

“…Animals reflect the stable isotope ratios (δ15N and δ13C) of their diet, with a slight enrichment in15N that allows the use of δ15N as a trophic-level…”
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Assortative Mating in Sympatric Host Races of the European Corn Borer by Malausa, Thibaut, Bethenod, Marie-Thérèse, Bontemps, Arnaud, Bourguet, Denis, Cornuet, Jean-Marie, Ponsard, Sergine

“…Although a growing body of work supports the plausibility of sympatric speciation in animals, the practical difficulties of directly quantifying reproductive…”
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The genetic structure of Asian corn borer, Ostrinia furnacalis, populations in China: haplotype variance in northern populations and potential impact on management of resistance to transgenic maize by Li, Jing, Coates, Brad S, Kim, Kyung Seok, Bourguet, Denis, Ponsard, Sergine, He, Kanglai, Wang, Zhenying

“…Asian corn borer, Ostrinia furnacalis (Guenée), is a severe pest that infests cultivated maize in the major production regions of China. Populations show…”
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Acceptability and suitability of the European Ostrinia nubilalis Huebner for Macrocentrus cingulum Brischke from Asia and Europe by Campan, EDM, Havard, S, Sagouis, A, Pelissier, C, Muller, F J, Villemant, C, Savriama, Y, Guery, D, Hu, J, Ponsard, S

“…We examined whether Macrocentrus cingulum (Hymenoptera: Braconidae) of Asian origin could serve as a biological control agent of the maize pest Ostrinia…”
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Molecular differentiation at nuclear loci in French host races of the European corn borer (Ostrinia nubilalis) by Malausa, T, Leniaud, L, Martin, J.F, Audiot, P, Bourguet, D, Ponsard, S, Lee, S.F, Harrison, R.G, Dopman, E

“…French populations of the European corn borer consist of two sympatric and genetically differentiated host races. As such, they are well suited to study…”
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Physiologically based demographics of Bt cotton-pest interactions I. Pink bollworm resistance, refuge and risk by GUTIERREZ, Andrew Paul, PONSARD, Sergine

“…Transgenic cotton expressing the genes for the production of protoxin of the bacterium Bacillus thuringiensis (Bt) is used to control lepidopterous pests…”
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Physiologically based demographics of Bt cotton-pest interactions II. Temporal refuges, natural enemy interactions by GUTIERREZ, Andrew Paul, ADAMCZYK, John J, PONSARD, Sergine, ELLIS, C. K

“…An holistic demographic physiologically based age-mass structured model of transgenic Bt cotton expressing one or two toxin of the bacterium Bacillus…”
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What can stable isotopes ( delta super(15)N and delta super(13)C) tell about the food web soil macro-invertebrates? by Ponsard, S, Arditi, R

“…Animals reflect the stable isotope ratios ( delta super(15)N and delta super(13)C) of their diet, with a slight enrichment in super(15)N that allows the use of…”
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Effect of Bt-toxin (Cry1Ac) in Transgenic Cotton on the Adult Longevity of Four Heteropteran Predators by Ponsard, Sergine, Gutierrez, Andrew P, Mills, Nicholas J

“…The management of agroecosystems affects intricately linked assemblages of organisms, and nontarget species are not necessarily unimpacted. We examined the…”
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Sources of variation in consumer-diet delta super(15)N enrichment: a meta-analysis by Vanderklift, MA, Ponsard, S

“…Measurements of delta super(15)N of consumers are usually higher than those of their diet. This general pattern is widely used to make inferences about trophic…”
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Assessing top-down and bottom-up control in a litter-based soil macroinvertebrate food chain by Ponsard, Sergine, Arditi, Roger, Jost, Christian

“…The relative importance of top-down and bottom-up control in setting the equilibrium abundances within trophic levels is examined in a comparative study on the…”
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