Search Results - "Danger, M."

Different impacts of diet composition on the stoichiometric traits of two freshwater species by Evangelista, C., Danger, M., Lassus, R., Cucherousset, J.

“…Body elemental composition of consumers is a crucial parameter linking organisms’ attributes to environmental changes. Recent investigations have revealed…”
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Aquatic hyphomycetes: a potential source of polyunsaturated fatty acids in detritus-based stream food webs by Arce Funck, J., Bec, A., Perrière, F., Felten, V., Danger, M.

“…To date, aquatic hyphomycetes have mainly been considered as a source of carbohydrates, mineral elements and proteins for detritivores in detritus-based…”
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Bacteria can control stoichiometry and nutrient limitation of phytoplankton by DANGER, M, OUMAROU, C, BENEST, D, LACROIX, G

“…1. The chemical composition of primary producers, which occupy the base of food webs, is highly variable over space and time. Determining the causes of these…”
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Behavioural and physiological responses of Gammarus fossarum (Crustacea Amphipoda) exposed to silver by Arce Funck, J., Danger, M., Gismondi, E., Cossu-Leguille, C., Guérold, F., Felten, V.

“…•Gammarus fossarum's juveniles are more Ag-sensitive than ovigerous females and adult males.•Ag induces drastic effect on survival, lipid peroxidation,…”
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Phosphorus availability modulates the toxic effect of silver on aquatic fungi and leaf litter decomposition by Funck, J. Arce, Clivot, H., Felten, V., Rousselle, P., Guérold, F., Danger, M.

“…•Ag significantly affected decomposition rates, fungal biomass and community structure, leaf litter elemental composition, and Gammarus fossarum feeding rate,…”
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Community structure and nutrient level control the tolerance of autotrophic biofilm to silver contamination by Leflaive, J., Felten, V., Ferriol, J., Lamy, A., Ten-Hage, L., Bec, A., Danger, M.

“…Autotrophic biofilms are complex and fundamental biological compartments of many aquatic ecosystems. Since microbial species differ in their sensitivity to…”
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Effects of food-web structure on periphyton stoichiometry in eutrophic lakes: a mesocosm study by DANGER, M, LACROIX, G, OUMAROU, C, BENEST, D, MÉRIGUET, J

“…1. Aquatic herbivores typically have much higher concentrations of nutrients (e.g. N and P) in their tissues than there is in the food they eat. These…”
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Can we use stable isotopes for ecotoxicological studies? Effect of DDT on isotopic fractionation in Perca fluviatilis by Banas, D., Vollaire, Y., Danger, M., Thomas, M., Oliveira-Ribeiro, C.A., Roche, H., Ledore, Y.

“…Nitrogen and carbon stable isotope analyses are frequently used to assess contaminant biomagnification in animals in the wild. Previous studies, mainly on…”
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Receptor activated C kinase is down-regulated in the male gonad of the marine bivalve mollusc Mya arenaria exposed to tributyltin (TBT) by Siah, A., Masson, R., Loup, B., Bultelle, F., Pellerin, J., Leboulenger, F., Danger, J.M.

“…This study was aimed at investigating the molecular mechanisms by which tributyltin (TBT) impairs the reproductive processes in the marine bivalve Mya…”
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Identification of the gene encoding a Dnak-type molecular chaperone as potentially down regulated in blue mussels (Mytilus edulis) following acute exposure to atrazine by Masson, R, Loup, B, Bultelle, F, Siah, A, Leboulenger, F, Danger, J. M

“…Because of their widespread geographical distribution and high capacity of bioaccumulation, bivalve species, in particular blue mussels (Mytilus edulis), are…”
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Identification of differentially expressed genes in Dreissena polymorpha exposed to contaminants by Bultelle, F, Panchout, M, Leboulenger, F, Danger, J.M

“…Development of transcriptome analysis methods such as differential display PCR and construction of subtractive libraries now makes it possible to profile gene…”
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Molecular cloning of superoxide dismutase (Cu/Zn-SOD) from aquatic molluscs by Geret, F., Manduzio, H., Company, R., Leboulenger, F., Bebianno, M.J., Danger, J.M.

“…The potential of the first line of the active oxygen-scavenging system, partial cDNA encoding Cu/Zn superoxide dismutase (SOD) was isolated in three aquatic…”
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Priming effect: bridging the gap between terrestrial and aquatic ecology by Guenet, Bertrand, Danger, Michael, Abbadie, Luc, Lacroix, Gérard

“…Understanding how ecosystems store or release carbon is one of ecology's greatest challenges in the 21st century. Organic matter covers a large range of…”
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Benthic algae stimulate leaf litter decomposition in detritus-based headwater streams: a case of aquatic priming effect? by Danger, Michael, Cornut, Julien, Chauvet, Eric, Chavez, Paola, Elger, Arnaud, Lecerf, Antoine

“…In detritus-based ecosystems, autochthonous primary production contributes very little to the detritus pool. Yet primary producers may still influence the…”
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Liming of acidified forests changes leaf litter traits but does not improve leaf litter decomposability in forest streams by Allen, J., Maunoury-Danger, F., Felten, V., Danger, M., Legout, A., Guérold, F.

“…•Liming is often proposed to promote recovery of acidified ecosystems.•We evaluated how liming changes leaf litter traits and decomposability.•Liming…”
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Characterization of Melanotropin-Release-Inhibiting Factor (Melanostatin) From Frog Brain: Homology with Human Neuropeptide Y by CHARTREL, N, CONLON, J. M, DANGER, J.-M, FOURNIER, A, TONON, M.-C, VAUDRY, H

“…A polypeptide was purified from frog brain extracts on the basis of its ability to inhibit α-melanotropin release from perifused frog neurointermediate lobes…”
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Towards a simple global-standard bioassay for a key ecosystem process: organic-matter decomposition using cotton strips by Colas, F., Woodward, G., Burdon, F.J., Guérold, F., Chauvet, E., Cornut, J., Cébron, A., Clivot, H., Danger, M., Danner, M.C., Pagnout, C., Tiegs, S.D.

“…•Cotton-strip assays indicate the capacity of ecosystems to decompose organic matter.•These assays are sensitive to environmental conditions and environmental…”
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Neuropeptide-Y in the trout brain and pituitary: localization, characterization, and action on gonadotropin release by Danger, J M, Breton, B, Vallarino, M, Fournier, A, Pelletier, G, Vaudry, H

“…Using a specific antiserum raised against synthetic neuropeptide-Y (NPY), the distribution of NPY-like immunoreactivity in the brain and pituitary of the trout…”
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Distribution and characterization of neuropeptide Y-like immunoreactivity in the brain and pituitary of the goldfish by PONTET, A, DANGER, J. M, DUBOURG, P, PELLETIER, G, VAUDRY, H, CALAS, A, KAH, O

“…The distribution of neuropeptide Y (NPY) immunoreactivity has been studied by means of immunocytochemistry and radioimmunoassay in the brain of the goldfish…”
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Characterization, cerebral distribution and gonadotropin release activity of neuropeptide Y (NPY) in the goldfish by Kah, O, Pontet, A, Danger, J M, Dubourg, P, Pelletier, G, Vaudry, H, Calas, A

“…The presence of a peptide closely related to porcine NPY has been demonstrated in the goldfish brain and pituitary by means of radioimmunoassay (RIA) and high…”
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