What can we learn about the health of an ecosystem through frogs? This title takes readers to our freshwater sources to see how pollution is disrupting the reproduction and lives of frogs, how humans are to blame, and what we can do to fix it.
When you can admit you don't have a clue, that's when you know you're ready to start the process of becoming an impactful leader. Using the power of parable and storytelling, authors Jack R. Christianson and Ron Tracy deliver powerful lessons on leadership. Some people believe that profitability and getting the work done is most important. We call these people managers. Others decide that people are the most important consideration. Taking care of their people is the most important thing and the bottom line is secondary. We call these people mentors. Leaders must choose both. They must get things done while valuing the people around them. Join Mike and Brad as they journey the path the success, discovering the roles and responsibilities needed to become more than a manager or mentor. By following the advice of a frog named Bob, they learn how to become true leaders.
In this comprehensive book, renowned herpetologist Ellin Beltz offers a compelling picture of the history of the frog, its anatomical makeup, its place in the natural world and the threats that are seriously reducing its numbers around the world. Today, frogs are found on most islands around the world and on all continents except Antarctica. Frogs live from the warmest and wettest tropical lowlands to about 17,000 feet above sea level in the Himalayas. Some areas of Earth have more frogs than others, but frogs are true survivors. But it isn't easy being green. This hearty amphibian lives both on land and in the water and is exposed to a host of chemical and environmental threats. The frog is an animal that indicates the overall health of the environment in which it lives. It is not too much to say that "as goes the frog, so goes the swamp," and even perhaps the planet. Frogs contains a detailed look at all 31 frog families, allowing the reader to learn more about specific ones and appreciate the range and diversity of this popular amphibian. And, yes, toads are covered here, too. There is also a fascinating section on frogs in myth and culture, showing the place frogs have occupied in art and literature. This handsome book is lavishly illustrated with over 125 color photographs representing the remarkable range and world of an utterly fascinating creature. AUTHOR: Ellin Beltz is a biologist, herpetologist and author. A longtime member of the Chicago Herpetological Society, she has written extensively on reptiles and amphibians and taught at Northeastern Illinois University, the Morton Arboretum, Trinity Christian College and College of the Redwoods. 125 colour photographs
In this eloquent plea for compassion and respect for all species, journalist and gardener Nancy Lawson describes why and how to welcome wildlife to our backyards. Through engaging anecdotes and inspired advice, profiles of home gardeners throughout the country, and interviews with scientists and horticulturalists, Lawson applies the broader lessons of ecology to our own outdoor spaces. Detailed chapters address planting for wildlife by choosing native species; providing habitats that shelter baby animals, as well as birds, bees, and butterflies; creating safe zones in the garden; cohabiting with creatures often regarded as pests; letting nature be your garden designer; and encouraging natural processes and evolution in the garden. The Humane Gardener fills a unique niche in describing simple principles for both attracting wildlife and peacefully resolving conflicts with all the creatures that share our world.
What can we learn about the health of an ecosystem through coral reefs? This title takes readers into our warming oceans to learn why and how coral reefs are hurting, and why it's a larger issue for the thousands of animals and humans who depend on its resources.
What can we learn about the health of an ecosystem through dragonflies? This title takes readers to our freshwater sources to see how pollution is disrupting the reproduction of dragonflies, how humans are to blame, and what we can do to fix it.
This book is a sequel to the volume of selected papers of Dyson up to 1990 that was published by the American Mathematical Society in 1996. The present edition comprises a collection of the most interesting writings of Freeman Dyson, all personally selected by the author, from the period 1990–2014. The five sections start off with an Introduction, followed by Talks about Science, Memoirs, Politics and History, and some Technical Papers. The most noteworthy is a lecture entitled Birds and Frogs to the American Mathematical Society that describes two kinds of mathematicians with examples from real life. Other invaluable contributions include an important tribute to C. N. Yang written for his retirement banquet at Stony Brook University, as well as a historical account of the Operational Research at RAF Bomber Command in World War II provocatively titled A Failure of Intelligence. The final section carries the open-ended question of whether any conceivable experiment could detect single gravitons to provide direct evidence of the quantization of gravity — Is a Graviton Detectable? Various possible graviton-detectors are examined. This invaluable compilation contains unpublished lectures, and surveys many topics in science, mathematics, history and politics, in which Freeman Dyson has been so active and well respected around the world.
What can we learn about the health of an ecosystem through monarch butterflies? This title takes readers through our warming world where butterfly habitats are dwindling. Learn why humans are the cause of dropping butterfly populations and what we can do to help them bounce back.