The ecosystems present a great diversity worldwide and use various functionalities according to ecologic regions. In this new context of variability and climatic changes, these ecosystems undergo notable modifications amplified by domestic uses of which it was subjected to. Indeed the ecosystems render diverse services to humanity from their composition and structure but the tolerable levels are unknown. The preservation of these ecosystemic services needs a clear understanding of their complexity. The role of the research is not only to characterise the ecosystems but also to clearly define the tolerable usage levels. Their characterisation proves to be important not only for the local populations that use it but also for the conservation of biodiversity. Hence, the measurement, management and protection of ecosystems need innovative and diverse methods. For all these reasons, the aim of this book is to bring out a general view on the biogeochemical cycles, the ecological imprints, the mathematical models and theories applicable to many situations.

The Field Guide to Freshwater Invertebrates of North America focuses on freshwater invertebrates that can be identified using at most an inexpensive magnifying glass. This Guide will be useful for experienced nature enthusiasts, students doing aquatic field projects, and anglers looking for the best fish bait, lure, or fly. Color photographs and art, as well as the broad geographic coverage, set this guide apart. - 362 color photographs and detailed descriptions aid in the identification of species - Introductory chapters instruct the reader on how to use the book, different inland water habitats and basic ecological relationships of freshwater invertebrates - Broad taxonomic coverage is more comprehensive than any guide currently available

The Natural History of the Bahamas fills a void in the literature on the avian and terrestrial species found there and is an overall excellent guide.— Sandra D. Buckner, Past President of the Bahamas National Trust Take this book with you on your next trip to the Bahamas or the Turks and Caicos Islands or keep it close to hand in your travel library. The Natural History of the Bahamas offers the most comprehensive coverage of the terrestrial and coastal flora and fauna on the islands of the Bahamas archipelago, as well as of the region's natural history and ecology. Readers will gain an appreciation for the importance of conserving the diverse lifeforms on these special Caribbean islands. A detailed introduction to the history, geology, and climate of the islands. Beautifully illustrated, with more than seven hundred color photographs showcasing the diverse plants, fungi, and animals found on the Bahamian Archipelago.

On t.p.: A guide to the common invertebrates and fishes of Bermuda, the Bahamas, southern Florida, the West Indies, and the Caribbean coast of Central and South America.

A broad survey of the coral reefs of the world over three volumes, intended to establish priorities for reef conservation. The review includes distribution, conservation status, legislation, recommendations and accounts of sites of scientific interest.