Kategoria BISAC: Nature >> Animals - Marine Life

About four hundred million years ago earthquake activity and possibly major storms caused sudden movements of large quantities of muddy sediment along the seafloor. Animal communities in the path of these sediment-laden flows were instantly engulfed, the inhabitants "frozen" in the last moment of their lives. Amazingly, many of the creatures lost in this ancient catastrophe were almost perfectly preserved through the eons, fossilized in a thick series of muds now known as the Hunsruck Slate west of the Rhine Valley in western Germany. Excavations there have yielded the most diverse and...

Whales and dolphins are icons for the conservation movement. They are the most conspicuous ambassadors for entire marine ecosystems and possibly even for the biosphere as a whole. Concurrent with our realisation of impending threats to their environment is a growing scientific understanding of the social and cognitive complexity of many of these species.

This book brings together experts in the relevant diverse fields of cetacean research, to provide authoritative descriptions of our current knowledge of the complex behaviour and social organization of whales and dolphins. The...

The ocean teems with life that thrives under difficult situations in unusual environments. The Extreme Life of the Sea takes readers to the absolute limits of the ocean world--the fastest and deepest, the hottest and oldest creatures of the oceans. It dives into the icy Arctic and boiling hydrothermal vents--and exposes the eternal darkness of the deepest undersea trenches--to show how marine life thrives against the odds. This thrilling book brings to life the sea's most extreme species, and tells their stories as characters in the drama of the oceans. Coauthored by Stephen...

A solid introduction to stable isotopes that can also be used as an instructive review for more experienced researchers and professionals. The book approaches the use of isotopes from the perspective of ecological and biological research, but its concepts can be applied within other disciplines. A novel, step-by-step spreadsheet modeling approach is also presented for circulating tracers in any ecological system, including any favorite system an ecologist might dream up while sitting at a computer. The author s humorous and lighthearted style painlessly imparts the principles of isotope...

Before commercial whaling was outlawed in the 1980s, diplomats, scientists, bureaucrats, environmentalists, and sometimes even whalers themselves had attempted to create an international regulatory framework that would allow for a sustainable whaling industry. In Whales and Nations, Kurkpatrick Dorsey tells the story of the international negotiation, scientific research, and industrial development behind these efforts --and their ultimate failure.

Whales and Nations begins in the early twentieth century, when new technology revived the fading whaling industry and made...