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"About 40 million years after the Cambrian Explosion, the Great Ordovician Biodiversification Event (GOBE) represents a second and dramatic burst in marine biodiversity, with major changes in the structure of ecosystems and the progressive replacement of the distinctive Cambrian Evolutionary Fauna by the Paleozoic Evolutionary Fauna. However, the GOBE is not a single, worldwide, short-term event, but rather the complex sum of successive diversifications occurring in distinct taxonomic groups, trophic guilds and regions. This book focuses on the Late Ordovician Tafilalt Biota, Anti-Atlas Morocco, which provides a snapshot of the GOBE in high-latitude regions of the Southern Hemisphere. A series of contributions explore different aspects of the Tafilalt Biota, including its geological setting, the international fossil trade in this area and a series of detailed systematic contributions describing many new taxa of marine invertebrates. This volume represents a significant contribution to the understanding of the Tafilalt Biota and its significance to the GOBE"--Abstract.
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Depuis 20 ans la protection de la nature s'est réarticulée autour de l'idée de biodiversité : ce livre décrit cette transformation et analyse sa portée. Loin du militantisme et de la passion pour la faune et la flore, il montre qu'au tournant du XXIe siècle, la protection de la nature est devenue l'affaire de professionnels, de techniciens et d'experts dans l'exercice quotidien de leur métier. Basé sur une enquête sociologique approfondie, il décrit les tensions et les paradoxes des pratiques et des métiers des professionnels de la nature à l'heure de la gestion de la biodiversité. Car si la p
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The volume collects the contributions to the Fifth International Symposium on the Lacertids of the Mediterranean Basinheld on the island of Lipari between 7 and 11 May 2004. The study of the Mediterranean lacertid lizards represents a key point for understanding the mechanisms regulating the evolution of the Mediterranean's ecosystems and in particular those ones related to islands. Conservation of biodiversity is the main target that such a knowledge significantly contributes to fulfil.
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