Threat to the Yangtze River Dolphin


Book Description

Yangtze River dolphins, also known as Baiji, have splashed in the waters of Chinas Yangtze River for millions of years. The Chinese people have always loved these mammals. They considered the Baiji to be a beautiful part of their river, and they have told many stories about them. Today, the Yangtze is a very different place. Trash floats in the water, and toxic chemicals pollute it. Thousands of boats travel up and down the river every day, and people use dangerous fishing equipment with sharp rolling hooks. The Yangtze River is no longer a safe place for the Baiji to live. Most of them have died out. Scientists worry that it might be too late for these dolphins. Is there any way to save them?




Witness to Extinction


Book Description

The tragic recognition of the extinction of the Yangtze River Dolphin or baiji in 2007 became a major news story and sent shockwaves around the world. It made a romantic story, for the baiji was a unique and beautiful creature that features in many Chinese legends and folk tales. The Goddess of the Yangtze, as it was known, was also the lone representative of an entire and ancient branch of the Tree of Life. But perhaps the greater tragedy is that its status as one of the world's most threatened mammals had been widely recognized, yet despite wide publicity virtually no international funds became available. A compelling read by a young naturalist, Samuel Turvey tells the story of the plight of the Yangtze River Dolphin from his unique perspective as a conservation biologist deeply involved in the struggle to save the dolphin. This is both a celebration of a beautiful and remarkable animal that once graced one of China's greatest rivers, its natural history and its role as a cultural symbol; and also a personal, eyewitness account of the failures of policy and the struggle to get funds that led to its tragic demise. It is a true cautionary tale that we must learn from, for there are countless other threatened species that will suffer from the same human mistakes, and whose loss we shall not know until it is too late.







Odontocetes


Book Description

Toothed whales occur in a wide range of marine and freshwater habitats, from the Arctic to the tropics. Some species live in large river systems such as the Amazon, Ganges, Indus and Yangtze. This encyclopedia on all 72 species of toothed whales includes the most recent scientific findings on the distribution, migration, behaviour and threats to this group of whales.




Biosonar


Book Description

Two groups of animals, bats and odontocetes (toothed whales), have independently developed the ability to orient and detect prey by biosonar (echolocation). This active mechanism of orientation allows these animals to operate under low light conditions. Biosonar is a conceptual overview of what is known about biosonar in bats and odontocetes. Chapters are written by bat and odontocetes experts, resulting in collaborations that not only examine data on both animals, but also compare and contrast mechanisms. This book provides a unique insight that will help improve our understanding of biosonar in both animal groups.







Biology and Conservation of Freshwater Cetaceans in Asia


Book Description

This compilation brings together current information on the status of Asian freshwater cetacean populations, the factors that have caused their recent declines, and what can be done to improve their chances for survival. Includes papers on water development issues, the Yangtze River Dolphin (Baiji), the Ganges River Dolphin (Susu), and porpoises. In the final section, five papers address methods of studying freshwater cetaceans.







The Sierra Club Handbook of Whales and Dolphins


Book Description

Through color & black-and-white pictures & an extensive text, 76 species are described.




Freshwater Biodiversity


Book Description

Growing human populations and higher demands for water impose increasing impacts and stresses upon freshwater biodiversity. Their combined effects have made these animals more endangered than their terrestrial and marine counterparts. Overuse and contamination of water, overexploitation and overfishing, introduction of alien species, and alteration of natural flow regimes have led to a 'great thinning' and declines in abundance of freshwater animals, a 'great shrinking' in body size with reductions in large species, and a 'great mixing' whereby the spread of introduced species has tended to homogenize previously dissimilar communities in different parts of the world. Climate change and warming temperatures will alter global water availability, and exacerbate the other threat factors. What conservation action is needed to halt or reverse these trends, and preserve freshwater biodiversity in a rapidly changing world? This book offers the tools and approaches that can be deployed to help conserve freshwater biodiversity.