Grazers

While they come in all shapes, textures, and sizes, animals that subsist on the Earths natural vegetation share many common elements as well. Occupying a unique place in the food chain, grazers all over the Earth provide vital nourishment for carnivores and are often valuable to humans for meat, skins, and various domestic uses. This volume provides a colorful view of these varied and complex creatures as well as the features and behaviors that both bind them together and set them apart.

How has growing media choice transformed the way we gather news? News Grazers: Media, Politics, and Trust in an Information Age offers you an integration of the emerging effects that cable news, online news, and social media have had on American politics. Author Richard Forgette, an expert on the U.S. Congress and public policy, draws on direct experimental research to argue that the diffusion of media outlets and media technologies has resulted in an increasingly fragmented and distracted news audience. This unprecedented level of media choice is not only altering who accesses the news and how they do it; more important, it is changing the news itself. With chapters on commentary news, partisan news, breaking news, and fake news, News Grazers gives you the tools you need to critically analyze the ever-shifting media landscape. Special attention is also paid to the effects of the media and political trust on the 2016 election. Key Features: Coverage of the media’s effects on the 2016 election encourages you to discuss the election while taking into account the broader theoretical concerns about changing news consumption habits and declining political trust. The chapter on partisan news helps you understand the impact of politically polarized news audiences. The chapter on fake news offers you current examples of the political impact of this phenomenon. Examples of the ways in which Americans increasingly have become news grazers show you how growing media choice has transformed how we gather news and is resulting in an increasingly distracted news audience. Discussions about the development of commentary news show how producers have combined drama, opinion, immediacy, and entertainment with straight news content—allowing you to see the impact that this form of news has on the public’s trust in Congress and the media.

An accessible reference to the grasses and grazers of this region, Veronica Roodt’s book details the fascinating ways in which these plants and animals have evolved together. The book covers: some 100 grass species (includes sketches and photographs of each species) that are preferred livestock and wild game fodder and that serve as indicators of veld condition; the role of grasses in the food chain; grass anatomy and growth; how grazers have evolved to survive on grasses, both physically and in terms of their behaviour; significant grazers that occur in the region and that play a vital role in shaping the savanna biome, and effective grassland management practices. Nature lovers, farmers, students and tourists who seek an in-depth look at the interactions between grasses and the grazers that depend on them for life need look no further than this invaluable guide.

Harmful algal can cause a variety of deleterious effects, including the poisoning of fish and shellfish, habitat disruptions for many organisms, water discoloration, beach fouling, and even toxic effects for humans. In this volume, international experts provide an in-depth analysis of harmful algae topics and offer a comprehensive synthesis of the latest research in the field.

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All life is chemical. That fact underpins the developing field of ecological stoichiometry, the study of the balance of chemical elements in ecological interactions. This long-awaited book brings this field into its own as a unifying force in ecology and evolution. Synthesizing a wide range of knowledge, Robert Sterner and Jim Elser show how an understanding of the biochemical deployment of elements in organisms from microbes to metazoa provides the key to making sense of both aquatic and terrestrial ecosystems. After summarizing the chemistry of elements and their relative abundance in Earth's environment, the authors proceed along a line of increasing complexity and scale from molecules to cells, individuals, populations, communities, and ecosystems. The book examines fundamental chemical constraints on ecological phenomena such as competition, herbivory, symbiosis, energy flow in food webs, and organic matter sequestration. In accessible prose and with clear mathematical models, the authors show how ecological stoichiometry can illuminate diverse fields of study, from metabolism to global change. Set to be a classic in the field, Ecological Stoichiometry is an indispensable resource for researchers, instructors, and students of ecology, evolution, physiology, and biogeochemistry. From the foreword by Peter Vitousek: "[T]his book represents a significant milestone in the history of ecology. . . . Love it or argue with it--and I do both--most ecologists will be influenced by the framework developed in this book. . . . There are points to question here, and many more to test . . . And if we are both lucky and good, this questioning and testing will advance our field beyond the level achieved in this book. I can't wait to get on with it."