Download e-book for iPad: Biodiversity by Christian Lévêque, Jean-Claude Mounolou

By Christian Lévêque, Jean-Claude Mounolou

ISBN-10: 0470849568

ISBN-13: 9780470849569

ISBN-10: 0470849576

ISBN-13: 9780470849576

The identify presents an outline of the present wisdom in regards to the variety of the dwelling global and many of the difficulties linked to its conservation and sustainable use. protecting either the basics of the topic, in addition to the most recent study, Biodiversity offers key conservation matters inside a framework of worldwide case studies.Starting with a precis of the concept that of biodiversity, the textual content then explores such topics as species richness, ecological structures, the results of human actions, range and human well-being, genetic assets, biotechnology and conservation. Comprehensive creation to key concerns surrounding the examine of biodiversity.Extensive bibliography and references to various correct websites.Introduces present learn within the box inside a framework of invaluable case experiences.

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Extra resources for Biodiversity

Example text

Conversely, the immigration of genetically different individuals or the appearance of new mutants are phenomena that enrich the genetic diversity of populations.

During the replication and/or recombination of the DNA, localized secondary structures may form on either strand and interfere with the process of duplication and pairing, causing repetitions, deletions, etc. Both kinds of occurrences intervene spontaneously but rarely. Molecular processes called mutagens increase the probability of such mutations. Mutagens are the object of intensive study in connection with their ability to produce new genetic information, a capacity that industry is exploiting as a means of diversifying useful micro-organisms.

With temperatures around 100 8C, the ocean waters were highly enriched with a variety of molecules constituting a ‘primitive soup’. Certain atoms contained in this soup, such as C, H, O, N, P, S, would have been at origin of all organic molecules on Earth today. Under the impact of various sources of energy, such as heat, lightning and ultraviolet solar rays, mineral matter formed the first organic molecules: some protein-based amino acids, some fatty acids based on lipids, nucleotides, etc. ) facilitated the catalysis of the reactions by which organic molecules were formed.

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Biodiversity by Christian Lévêque, Jean-Claude Mounolou

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