Perfeziona i miei risultati


Université de Fribourg

Predicting abundances of invasive ragweed across Europe using a “top-down” approach

Skjøth, Carsten Ambelas ; Sun, Yan ; Karrer, Gerhard ; Sikoparija, Branko ; Smith, Matt ; Schaffner, Urs ; Müller-Schärer, Heinz

In: Science of The Total Environment, 2019, vol. 686, p. 212–222

Common ragweed (Ambrosia artemisiifolia L.) is a widely distributed and harmful invasive plant that is an important source of highly allergenic pollen grains and a prominent crop weed. As a result, ragweed causes huge costs to both human health and agriculture in affected areas. Efficient mitigation requires accurate mapping of ragweed densities that, until now, has not been achieved...

Université de Neuchâtel

Al confine di Chiasso : regards sur l'évolution du travail du Corps des gardes-frontière tessinois et son impact sur le contrôle migratoire

Lacarbonara, Nicole ; Piguet, Etienne (Dir.)

Mémoire de master : Université de Neuchâtel, 2019.

Ce mémoire de master analyse l’évolution du travail des gardes-frontière à la frontière de la zone de Mendrisio (Tessin) des années 1990 à ce jour. Plus particulièrement, il s’agit d’étudier l’évolution des tâches et leurs applications par l’examen du discours et des souvenirs des gardes-frontière qui ont partagé avec moi leur expérience de terrain. Après avoir...

Université de Neuchâtel

Social behaviour, stress and parasites : comparing free-ranging wolves in Yellowstone (USA), Abruzzo (Italy) and Mercantour (France) national parks

Molnar, Barbara ; Betschart, Bruno (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2012.

Formerly occupying most of the northern hemisphere, wolf (Canis lupus) populations have disappeared from a broad range of their initial distribution range, consecutive to human persecution. Following protection of the species, the carnivore recently expended its distribution range, through dispersal events or helped by reintroduction programs. Besides anthropic threats, infection by...

Université de Fribourg

Estimating economic benefits of biological control of Ambrosia artemisiifolia by Ophraella communa in southeastern France

Mouttet, Raphaelle ; Augustinus, Benno ; Bonini, Maira ; Chauvel, Bruno ; Desneux, Nicolas ; Gachet, Emmanuel ; Le Bourgeois, Thomas ; Müller-Schärer, Heinz ; Thibaudon, Michel ; Schaffner, Urs

In: Basic and Applied Ecology, 2018, vol. 33, p. 14–24

The North American common ragweed, Ambrosia artemisiifolia, which produces highly allergenic pollen, is invasive in different parts of the world, including Europe. In 2013, common ragweed in northern Italy was found attacked by another accidentally introduced species, the North American leaf beetle Ophraella communa, which is used for biological control of common ragweed in China. Since the...

Université de Fribourg

Archaeometric analyses of european 18th–20th century white earthenware—a review

Maggetti, Marino

In: Minerals, 2018, vol. 8, no. 7, p. 269

This study provides an overview of the few archaeometric analyses of European white earthenwares from England, France, Italy, Slovenia, and Switzerland. White earthenwares were an extremely successful mass-product between ca. 1750 and 1900. They became “the porcelain of the poor man” and replaced the older traditional pottery such as faïence. The invention of this new ceramic type took...

Bibliothèque d'art et d'archéologie, Genève

Les précieuses traces de Byzance trouvées au Tessin : témoignages tessinois de l'influence artistique byzantine

Lini, Gabriella ; Musée d'art et d'histoire (Genève)

Genève : Musée d'art et d'histoire, 2016

Tiré du site internet du blog des Musées d'art et d'histoire ( "Dans le cadre de l'exposition Byzance en Suisse, qui se tient au Musée Rath jusqu'au 13 mars, deux objets d'orfèvrerie témoignent des échanges d'influences artistiques et culturelles entre les populations lombardes, d'origine germanique, installées au Nord de l'Italie et au Tessin dès la fin du VIe...