The effect of regular collection of Drosera rotundifolia in natural peatlands in Finland: plant density, yield and regeneration

Tiivistelmä

Catalogue des tableaux modernes, aquarelles et dessins composant la collection de M. Berthelier... dont la vente aura lieu par suite de son décès le jeudi 9 mai 1889... / [expert] Georges Petit ; préface d'Emile Najac

[Vente. Art. 1889-05-09. Paris]

Catalogue des tableaux et dessins anciens, aquarelles, gouaches, pastels, gravures par Van Balen, F. Boucher, Breughel... [et al.], objets d'art et d'ameublement, sculptures, plâtres, bronzes, céramique..., sièges et meubles anciens..., composant la collection de monsieur Yves Le Moyne... vente... 5 février 1912... / [experts] Georges Sortais, Duchesne, Duplan

[Vente. Art. 1912-02-05. Paris]

Assessment of genetic diversity using RAPD analysis in a germplasm collection of sea buckthorn

Selostus: Tyrnin geneettisen monimuotoisuuden arviointi RAPD analyysillä

Fecal pellets collection as a method for assessing egesta of the marine cave-dwelling mysid Hemimysis speluncula

Egesta of a cave-dwelling mysid (Hemimysis speluncola Ledoyer, 1963) was studied in a submarine cave of Medes Islands, NW Mediterranean by in situ fecal pellet collecting. Fecal pellet production and gut fullness of mysids during incubation experiments are used to estimate mysid egestion rates. Intrinsic factors related with the natural history of this species such as population structure, density of mysids, daily rhythms and pellet decomposition rates are tested for their influence on the egestion rate. The effects of methodological artifacts, such as the stress induced by both incubation and preservation procedures, are also studied. An average mysid egests about 2.5 pellets per day into the cave. The time of day is the main factor affecting egestion. The highest deposition rate is between 2 to 4 hours after sunrise when about 38 % of the total daily pellet production becomes egested. Fecal pellet morphology changes with mysid demographic classes: immature mysids produce slender and thick pellets, whereas mature mysids produce only thick pellets. Immature classes show higher percentages of full guts than mature ones. Mysid density in the incubators does not affect the results on gut fullness, but it causes a decrease in the number of pellets collected after incubation. Coprorhexia seems to be the only plausible process to explain this paradox. The incubation procedure does not increase deposition rate significantly. Time of incubation is critical because the half-life of fecal pellets is about 2.5 hours. Fixation with liquid nitrogen decreases gut fullness and also deposition rates. Higher values are obtained with 70 % ethanol and 5 % formalin solutions which show very similar results for both gut fullness and pellet deposition rates. Nevertheless, ethanol is not suitable as fixative because it enhances the opacity of the body. Several suggestions are given in order to optimize the reliability of further in situ experiments for evaluation of egesta of Hemimysis speluncola in submarine caves.

Rockfall travel distance analysis by using empirical models (Solà d'Andorra la Vella, Central Pyrenees)

The prediction of rockfall travel distance below a rock cliff is an indispensable activity in rockfall susceptibility, hazard and risk assessment. Although the size of the detached rock mass may differ considerably at each specific rock cliff, small rockfall (<100 m3) is the most frequent process. Empirical models may provide us with suitable information for predicting the travel distance of small rockfalls over an extensive area at a medium scale (1:100 000¿1:25 000). "Solà d'Andorra la Vella" is a rocky slope located close to the town of Andorra la Vella, where the government has been documenting rockfalls since 1999. This documentation consists in mapping the release point and the individual fallen blocks immediately after the event. The documentation of historical rockfalls by morphological analysis, eye-witness accounts and historical images serve to increase available information. In total, data from twenty small rockfalls have been gathered which reveal an amount of a hundred individual fallen rock blocks. The data acquired has been used to check the reliability of the main empirical models widely adopted (reach and shadow angle models) and to analyse the influence of parameters which affecting the travel distance (rockfall size, height of fall along the rock cliff and volume of the individual fallen rock block). For predicting travel distances in maps with medium scales, a method has been proposed based on the "reach probability" concept. The accuracy of results has been tested from the line entailing the farthest fallen boulders which represents the maximum travel distance of past rockfalls. The paper concludes with a discussion of the application of both empirical models to other study areas.

Catalogue d'une intéressante collection de tableaux... provenant du cabinet de feu M. Depping... / [expert] Gérard

[Vente. Art. 1854-02-03. Paris]

Catalogue d'une très intéressante collection de tableaux des écoles italienne, française... / [expert] Bellavoine

[Vente. Art. 1854-12-26. Paris]

Tableaux modernes composant la collection de M. E. S. [Sano]... / [expert] Ridel, Couteaux

[Vente. Art. 1855-01-22. Paris]

Catalogue de tableaux et dessins modernes composant la collection de M. T... [de Bruxelles],... / [expert] Francis Petit

[Vente. Art. 1856-02-09. Paris]

Catalogue d'une jolie collection d'estampes... / [expert] Vignères

[Vente. Estampes. 1856-11-03 - 1856-11-04. Paris]

Notice d'une curieuse collection de portraits anciens et modernes d'artistes dramatiques... / [expert] Vignères

[Vente. Art. 1857-11-09. Paris]

Catalogue d'une jolie collection d'estampes... / [expert] Vignères

[Vente. Estampes. 1857-11-23 - 1857-11-25. Paris]

Catalogue d'une collection de tableaux anciens... provenant du cabinet de M. le baron Stienstra,... / [expert] A. Febvre

[Vente. Art. 1857-12-04. Paris]

Catalogue d'une collection de tableaux anciens... [collection Warneck] / [expert] Dhios

[Vente. Art. 1857-12-17. Paris]