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On the intertidal zone of Le Veillon at Talmond-Saint-Hilaire (Vendée, France), in 1963 Gilbert Bessonnat discovered traces of vertebrate footprints in a Hettangian formation. On March 28th & 29th, at this site a study session was held on the theme: "sites with vertebrate footprints on the Triassic-Jurassic limit". Palæontologists, palæobotanists, sedimentologists, hydrologists, scientific historians and naturalists compared their results and projected further research. This exceptional Vendée heritage site is to be protected and developed.
L’inventaire floristique du Burkina Faso est loin d’être clos. Les récentes investigations floristiques ont permis de recenser un grand nombre d’espèces qui n’avaient jamais été mentionnées sur la liste floristique nationale. Une partie de ces espèces sont d’ailleurs guinéocongolaises. Cet inventaire a concerné les aires classées et protégées situées dans le secteur Sudsoudanien. Les richesses floristiques se retrouvent concentrées dans ces aires classées et protégées car ce sont des formations qui jouissent d’une relative bonne gestion par rapport aux autres aires non protégées qui ont été fortement dégradées par l’homme. L’objectif de cette communication est de donner les informations issues de ces différentes investigations sur l’état de connaissance de la diversité végétale du Burkina Faso avec un accent particulier sur le mode de gestion et les utilisations de quelques espèces de la zone sud soudanienne.
The Veillon ichnofauna, early Liassic in age, includes various Reptile taxa: quadruped Pseudosuchian, Coelurosaurians, Theropods, primitive Iguanodon – like Ornithopods and some unspecified forms. This ichnofauna is very comparable to the early Liassic footprint assemblage of the Connecticut.
The Ichnospace is a specific exhibition dedicated to traces and tracks left by recent and fossil animals on ground. The Ichnospace is located at Luzech, a little town with a long historic past, near Cahors (about 17 km W) in the valley of the river Lot. Every living being leaves traces of its activities (habitat, locomotion, diet, etc.) in its environment. These traces are the signing of the individual and they may be preserved and fossilised in geological time. They provide information about biodiversity, the habits of individuals and their distribution in time and space. In the Causses of Quercy area very near of Luzech and well known by palaeontologists and geologists, many dinosaur and pterosaur tracks have been discovered. Some of them are exposed with various fossil invertebrates, turtles, crocodiles and so on, from upper Jurassic when the sea Tethys ran along shores of the large Central island. Movie and an audio-visual show complete the exhibited specimens with French and English comments.
The writer mentions the existence of the Ophrys passionis in Loire-Atlantique and in Vendée (France), which are two countries where this Orchid had never be seen before. All the observations so far emphasize the hypothesis that this Orchid is different from the other related Orchids through its ability to adapt to a specific pollinator, Andrena carbonaria.
In the inter/supratidal algal mats, the early diagenesis products a progressive induration. It is enough to preserve all the deformations affecting the mats, including footprints of vertebrates, tracks and burrows of small invertebrates, and physical actions (desiccation cracks).
After 1985, the otter (Lutra lutra) was not found any more on the Sèvre Nantaise (France). From 1997, a careful exploration revealed presence signs of its presence showing the coming back of this mammal.
The Revue des Sciences naturelles de l’Ouest was edited in the years 1891-97. Although poorly known, it contains valuable papers on the natural sciences in Western France, particularly in Vendée. After a short presentation, we give here the content tables of this periodical together with a list of public libraries where it can be found.
In 1911, an excursion of the French Botanical Society made it possible to list all the notable plants of the damp hill of Les Hautes Termelières in the North of La Roche-sur-Yon (in Vendée, France). Nearly a century later, this note states the main plants that are to be found on the hill and more particularly 11 species of ferns.
Clastic deposits related to alluvial and estuarine environments sedimented during the early Liassic in the Veillon area (south of Talmont-Saint-Hilaire, Vendée, France). A reptile fauna including various taxa, just known by innumerable footprints, lived in that environment, in rather hot and dry climatic conditions.