Charles Krebs' best-selling majors-level text approaches ecology as a series of problems that are best understood by evaluating empirical evidence through data analysis and application of quantitative reasoning. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style for students. Reflecting the way ecologists actually practice, the new edition emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Ecology: The Experimental Analysis of Distribution and Abundance, Sixth Edition builds on a clear writing style, historical perspective, and emphasis on data analysis with an updated, reorganized discussion of key topics and two new chapters on climate change and animal behavior. Key concepts and key terms are now included at the beginning of each chapter to help students focus on what is most important within each chapter, mathematical analyses are broken down step by step in a new feature called "Working with the Data," concepts are reinforced throughout the text with examples from the literature, and end-of-chapter questions and problems emphasize application.

Although Charles Darwin's theory of evolution laid the foundations of modern biology, it did not tell the whole story. Most remarkably, "The Origin of Species" said very little about, of all things, the origins of species. Darwin and his modern successors have shown very convincingly how inherited variations are naturally selected, but they leave unanswered how variant organisms come to be in the first place.In "Symbiotic Planet," renowned scientist Lynn Margulis shows that symbiosis, which simply means members of different species living in physical contact with each other, is crucial to the origins of evolutionary novelty. Ranging from bacteria, the smallest kinds of life, to the largest--the living Earth itself--Margulis explains the symbiotic origins of many of evolution's most important innovations. The very cells we're made of started as symbiotic unions of different kinds of bacteria. Sex--and its inevitable corollary, death--arose when failed attempts at cannibalism resulted in seasonally repeated mergers of some of our tiniest ancestors. Dry land became forested only after symbioses of algae and fungi evolved into plants. Since all living things are bathed by the same waters and atmosphere, all the inhabitants of Earth belong to a symbiotic union. Gaia, the finely tuned largest ecosystem of the Earth's surface, is just symbiosis as seen from space. Along the way, Margulis describes her initiation into the world of science and the early steps in the present revolution in evolutionary biology; the importance of species classification for how we think about the living world; and the way "academic apartheid" can block scientific advancement. Written with enthusiasm and authority, this is a book that could change the way you view our living Earth.

For non-majors and mixed-majors introductory botany (plant biology) courses. Plant Biology focuses students on the function of plants and the role they play in our world. With evolved content and a new organization, the authors emphasize the scientific method to help students develop the critical thinking skills they need to make sound decisions throughout life. Together, the emphasis on how plants work and the development of critical-thinking skills support the authors' goal of fostering scientific literacy.

Ending hunger, achieving food security and promoting sustainable development are at the top of the list of United Nations (UN) sustainable global development priorities. In the times of high population growth and increasing pressure of agricultural systems, efficiency in use of natural resources has been at the epicenter of sustainable agricultural. The concept of 'Input efficiency' implies production of high quantity and quality of food, from using only finite natural resources as inputs, in the form of mainly land, water, nutrients, energy, or biological diversity. In this book, editors provide a roadmap to the food, nutritional, and environmental security in the agricultural systems. They share insight into the approaches that can be put in practice for increasing the input use efficiency in the cropping systems and achieve stability and sustainability of agricultural production systems. This book is of interest to teachers, researchers, climate change scientists, capacity builders and policymakers. Also the book serves as additional reading material for undergraduate and graduate students of agriculture, agroforestry, agroecology, and environmental sciences. National and international agricultural scientists, policymakers will also find this to be a useful read.

This book is an inclusive coverage of advances in aquaculture health management. It offers latest updates as well as explains the novel concepts and issues related to aquatic animal health management. To support the understanding of the concepts, there is extensive use of illustrations. Chapters emphasize on the state of art techniques and hold great promise for the sustainable development of aquaculture. This book is of interest to teachers, researchers, aquatic biologists, capacity builders and policymakers. Also the book serves as additional reading material for undergraduate and graduate students of aquatic sciences, marine sciences, biotechnology, ecology, and environmental sciences. National and international aquatic scientists, policy makers will also find this to be a useful read.

The 2021 IPCC report made one thing crystal clear - global climate change is here to stay. Time is up. We need to act or climate change will lead to inconceivable suffering by billions of people. Buying Time for Climate Action is the combined narrative of world class experts, all committed to help humanity survive its largely self-induced destructive course. Changing that course requires urgent action. Determining which actions will lead to helpful change requires insights into the stumbling blocks that always emerge when actions aimed at change are planned, resulting in lost time. The experts who contributed to this volume, through their expertise, networks, wisdom and creativity, have largely concluded that the way to cope with the stumbling blocks is to avoid them by focusing on grassroots initiatives. Their narratives and discussions, presented in this book, highlight such thinking.The book is essential reading for anyone committed to help avoid an existential disaster for humanity, and ready to move plans into effective action.

The 2021 IPCC report made one thing crystal clear - global climate change is here to stay. Time is up. We need to act or climate change will lead to inconceivable suffering by billions of people. Buying Time for Climate Action is the combined narrative of world class experts, all committed to help humanity survive its largely self-induced destructive course. Changing that course requires urgent action. Determining which actions will lead to helpful change requires insights into the stumbling blocks that always emerge when actions aimed at change are planned, resulting in lost time. The experts who contributed to this volume, through their expertise, networks, wisdom and creativity, have largely concluded that the way to cope with the stumbling blocks is to avoid them by focusing on grassroots initiatives. Their narratives and discussions, presented in this book, highlight such thinking.The book is essential reading for anyone committed to help avoid an existential disaster for humanity, and ready to move plans into effective action.