LC-MS (/MS) in Clinical Toxicology Screening Methods

Toxicological screening is the analysis of biological samples to detect and identify unknown compounds. The high selectivity and sensitivity of liquid chromatography (LC) coupled to mass spectrometry (MS) or tandem mass spectrometry (MS/MS) technology provide an attractive alternative to the current methods (LC-UV, GC/MS, etc.). For these reasons, an increasing number of applications are being published. This paper is a brief overview of LC-MS(/MS) screening methods developed for clinical toxicology in recent years. Various sample treatments, chromatographic separations and detection by mass spectrometry can be combined to obtain screening methods adapted to the constraints and needs of clinical toxicology laboratories. Currently the techniques are in the hands of specialists, mainly in academic institutions. However, the evolution in technology should allow application of these techniques as a tool in toxicology laboratories, thus allowing a more widespread exploitation of their potential

Predicting where a radiation will occur: Acoustic and molecular surveys reveal overlooked diversity in Indian Ocean Island crickets (Mogoplistinae: Ornebius)

Recent theory suggests that the geographic location of island radiations (local accumulation of species diversity due to cladogenesis) can be predicted based on island area and isolation. Crickets are a suitable group for testing these predictions, as they show both the ability to reach some of the most isolated islands in the world, and to speciate at small spatial scales. Despite substantial song variation between closely related species in many island cricket lineages worldwide, to date this characteristic has not received attention in the western Indian Ocean islands; existing species descriptions are based on morphology alone. Here we use a combination of acoustics and DNA sequencing to survey these islands for Ornebius crickets. We uncover a small but previously unknown radiation in the Mascarenes, constituting a three-fold increase in the Ornebius species diversity of this archipelago (from two to six species). A further new species is detected in the Comoros. Although double archipelago colonisation is the best explanation for species diversity in the Seychelles, in situ cladogenesis is the best explanation for the six species in the Mascarenes and two species of the Comoros. Whether the radiation of Mascarene Ornebius results from intra- or purely inter- island speciation cannot be determined on the basis of the phylogenetic data alone. However, the existence of genetic, song and ecological divergence at the intra-island scale is suggestive of an intra-island speciation scenario in which ecological and mating traits diverge hand-in-hand. Our results suggest that the geographic location of Ornebius radiations is partially but not fully explained by island area and isolation. A notable anomaly is Madagascar, where our surveys are consistent with existing accounts in finding no Ornebius species present. Possible explanations are discussed, invoking ecological differences between species and differences in environmental history between islands. (Résumé d'auteur

Catalogue of the Heterocerous Lepidoptera from French Oceania

Volume: 3Start Page: 315End Page: 33

The Noctuidae Catocalinae from New Caledonia and the New Hebrides (Lepidoptera)

Volume: 4Start Page: 139End Page: 15

Métaye, R., 1978. — Tables et index lépidoptérologiques, L' Amateur de Papillons

Viette Pierre. Métaye, R., 1978. — Tables et index lépidoptérologiques, L' Amateur de Papillons. In: Bulletin de la Société entomologique de France, volume 83 (5-6), Mai-juin 1978. pp. 151-152

Métaye, R., 1978. — Tables et index lépidoptérologiques, L' Amateur de Papillons

Viette Pierre. Métaye, R., 1978. — Tables et index lépidoptérologiques, L' Amateur de Papillons. In: Bulletin de la Société entomologique de France, volume 83 (5-6), Mai-juin 1978. pp. 151-152

H. J. Hannemann. — Kleinschmetterlinge oder Microlepidoptera. — I. Die "Wickler (s. st.) (Tortricidae), in «Die Tierwelt Deutschlands», 48. Teil, G. Fischer Verlag, Jena

Viette Pierre. H. J. Hannemann. — Kleinschmetterlinge oder Microlepidoptera. — I. Die "Wickler (s. st.) (Tortricidae), in «Die Tierwelt Deutschlands», 48. Teil, G. Fischer Verlag, Jena. In: Bulletin de la Société entomologique de France, volume 66 (3-4), Mars-avril 1961. p. 126

Nouvelles espèces de Noctuelles de Madagascar [Lep. Noctuidae]

Viette Pierre. Nouvelles espèces de Noctuelles de Madagascar [Lep. Noctuidae]. In: Bulletin de la Société entomologique de France, volume 70 (5-6), Mai-juin 1965. pp. 143-156