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Welcome to an exploration of the diversity of life. The main goal of this text is to guide you on a journey of discovery about life?s diversity across levels ranging from molecules to genes, cells to organs, and species to ecosystems. Along the way, we will explore many questions about the mechanisms underlying diversity as well as the consequences of diversity for our own species and for others. Presenting the awe-inspiring diversity of life in an evolutionary context ? from algae fuel to zombie worms ? the 3rd Canadian edition continues to inspire students and instructors to better understand the workings and wonders of the biological world.
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First published in 2001.The standard work on its subject, this resource includes every traceable British entertainment film from the inception of the "silent cinema" to the present day. Now, this new edition includes a wholly original second volume devoted to non-fiction and documentary film--an area in which the British film industry has particularly excelled. All entries throughout this third edition have been revised, and coverage has been extended through 1994.Together, these two volumes provide a unique, authoritative source of information for historians, archivists, librarians, and film scholars.
This book provides an in-depth overview on the functional ecology of daily torpor and hibernation in endothermic mammals and birds. The reader is well introduced to the physiology and thermal energetics of endothermy and underlying different types of torpor. Furthermore, evolution of endothermy as well as reproduction and survival strategies of heterothermic animals in a changing environment are discussed. Endothermic mammals and birds can use internal heat production fueled by ingested food to maintain a high body temperature. As food in the wild is not always available, many birds and mammals periodically abandon energetically costly homeothermic thermoregulation and enter an energy-conser...
This book explores the factors affecting the survival of small populations. As the human impact on Earth expands, populations of many wild species are being squeezed into smaller and smaller habitats. As a consequence, they face an increasing threat of extinction. The authors review these theoretical ideas, the existing data, and explore the question: how well do small and isolated populations actually perform?