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Jellyfish Blooms: Ecological and Societal Importance
`Jellyfish', a group that includes scyphomedusae, hydromedusae, siphonophores and ctenophores, are important zooplankton predators throughout the world's estuaries and oceans. These beautiful creatures have come to public attention as featured exhibits in aquaria and in news headlines as invaders and as providers of genes used in biomedical research. Nevertheless, jellyfish are generally considered to be nuisances because they interfere with human activities by stinging swimmers, clogging power plant intakes and nets of fishermen and fish farms, and competing with fish and eating fish eggs and larvae. There is concern that environmental changes such as global warming, eutrophication, and ove...
A Functional Biology of Scyphozoa
This book provides the first complete overview of this important group of coelenterates. A basic, no-nonsense approach is taken dealing with the physiological and ecological aspects of the jelly fish.
The Real Thing
A biography of Canadian biologist, educator, and conservationist Ian McTaggart-Cowan.
Marine Biodiversity of Costa Rica, Central America
Life began in the sea, and even today most of the deep diversity of the planet is marine. This is often forgotten, especially in tropical countries like Costa Rica, renowned for their rain forests and the multitude of life forms found therein. Thus this book focusing on marine diversity of Costa Rica is particularly welcome. How many marine species are there in Costa Rica? The authors report a total of 6,777 species, or 3. 5% of the world’s total. Yet the vast majority of marine species have yet to be formally described. Recent estimates of the numbers of species on coral reefs range from 1–9 million, so that the true number of marine species in Costa Rica is certainly far higher. In som...
A Functional Biology of Scyphozoa
Scyphozoa have attracted the attention of many types of people. Naturalists watch their graceful locomotion. Fishermen may dread the swarms which can prevent fishing or eat larval fish. Bathers retreat from the water if they are stung. People from some Asiatic countries eat the medusae. Comparative physiologists examine them as possibly simple models for the functioning of various systems. This book integrates data from those and other investigations into a functional biology of scyphozoa. It will emphasize the wide range of adaptive responses possible in these morphologically relatively simple animals. The book will concentrate on the research of the last 35 years, partly because there has ...
Natural Laws in Scientific Practice
It is often presumed that the laws of nature have special significance for scientific reasoning. But the laws' distinctive roles have proven notoriously difficult to identify--leading some philosophers to question if they hold such roles at all. This study offers original accounts of the roles that natural laws play in connection with counterfactual conditionals, inductive projections, and scientific explanations, and of what the laws must be in order for them to be capable of playing these roles. Particular attention is given to laws of special sciences, levels of scientific explanation, natural kinds, ceteris-paribus clauses, and physically necessary non-laws.
Flourishing and Free
An inspiring and eye-opening collection of true stories about sixteen women who blazed their own trails in life and contributed in a fundamental way to the history of Vancouver Island and the surrounding islands. In this fascinating follow-up to On Their Own Terms, author Haley Healey chronicles the lives of a whole new crop of resilient, hard-working, rule-breaking, diverse women who lived on and around Vancouver Island. Flourishing and Free introduces readers to Sylvia Stark, who was born into slavery in Missouri and went on to become a homesteader on Salt Spring Island; Mary Ann Croft, the first female lighthouse keeper in all of Canada; Victoria Chung, the first Asian-Canadian person to ...
