Monarch butterflies are among the most popular insect species in the world and are an icon for conservation groups and environmental education programs. Monarch caterpillars and adults are easily recognizable as welcome visitors to gardens in North America and beyond, and their spectacular migration in eastern North America (from breeding locations in Canada and the United States to overwintering sites in Mexico) has captured the imagination of the public. Monarch migration, behavior, and chemical ecology have been studied for decades. Yet many aspects of monarch biology have come to light in only the past few years. These aspects include questions regarding large-scale trends in monarch population sizes, monarch interactions with pathogens and insect predators, and monarch molecular genetics and large-scale evolution. A growing number of current research findings build on the observations of citizen scientists, who monitor monarch migration, reproduction, survival, and disease. Monarchs face new threats from humans as they navigate a changing landscape marked by deforestation, pesticides, genetically modified crops, and a changing climate, all of which place the future of monarchs and their amazing migration in peril. To meet the demand for a timely synthesis of monarch biology, conservation and outreach, Monarchs in a Changing World summarizes recent developments in scientific research, highlights challenges and responses to threats to monarch conservation, and showcases the many ways that monarchs are used in citizen science programs, outreach, and education. It examines issues pertaining to the eastern and western North American migratory populations, as well as to monarchs in South America, the Pacific and Caribbean Islands, and Europe. The target audience includes entomologists, population biologists, conservation policymakers, and K–12 teachers.

Cyber Spying Tracking Your Family's (Sometimes) Secret Online Lives shows everyday computer users how to become cyber-sleuths. It takes readers through the many different issues involved in spying on someone online. It begins with an explanation of reasons and ethics, covers the psychology of spying, describes computer and network basics, and takes readers step-by-step through many common online activities, and shows what can be done to compromise them. The book's final section describes personal privacy and counter-spy techniques. By teaching by both theory and example this book empowers readers to take charge of their computers and feel confident they can be aware of the different online activities their families engage in. - Expert authors have worked at Fortune 500 companies, NASA, CIA, NSA and all reside now at Sytex, one of the largest government providers of IT services - Targets an area that is not addressed by other books: black hat techniques for computer security at the personal computer level - Targets a wide audience: personal computer users, specifically those interested in the online activities of their families

The number-one book for tree identification in Michigan and the Great Lakes

The Centers for Disease Control and Prevention (CDC) established the Vessel Sanitation Program (VSP) in the 1970s as a cooperative activity with the cruise ship industry. The program assists the cruise ship industry in fulfilling its responsibility for developing and implementing comprehensive sanitation programs to minimize the risk for acute gastroenteritis. Every vessel that has a foreign itinerary and carries 13 or more passengers is subject to twice-yearly inspections and, when necessary, re-inspection.

E. Lucy Braun, PhD, describes in detail the forest ecosystems of eastern North America. This classic reference is well-illustrated with maps and tables. A must for those seeking a deeper understanding of the botanical evolution of this region.