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The Prince of Cleveland (Hardcover): David W. Stephens The Prince of Cleveland (Hardcover)
David W. Stephens
R568 Discovery Miles 5 680 Ships in 10 - 15 working days

the prince of cleveland is a novel of suspense and thrills. Thomas Murphy is a common working stiff, who lives in Cleveland with his wife, Beth, and their three children Tommy, Jenny and little Danny. Miraculously, Thomas wins the Ohio Lottery and after the initial celebrating settle down, he then sets into motion his life long dream. He starts a business, hires over two thousand workers and proceeds to pick up the trash on the streets of Cleveland. After two years of hard work, the city sparkles and the citizens of Cleveland dub Thomas Murphy the Prince of Cleveland. Thomas's publicity and wealth draws the attention of an elite inter-national super-criminal named Lukas Krueger. He and his gang travel from Europe to Cleveland to investigate Thomas Murphy. Next, Lukas Krueger kidnaps Murphy's wife and three children. The FBI are brought in to handle Krueger's request for a thirty million dollar ransom, but after the FBI fail Thomas takes matters into his own hands. The storyline is thrilling as we read how Thomas continues to battle Lukas Krueger in an effort to first find and then rescue his family. As the story comes to a suspenseful and thrilling conclusion; you won't believe the surprise ending.

Food Webs and Niche Space. (MPB-11), Volume 11 (Paperback): Joel E Cohen, David W. Stephens Food Webs and Niche Space. (MPB-11), Volume 11 (Paperback)
Joel E Cohen, David W. Stephens
R1,752 Discovery Miles 17 520 Ships in 18 - 22 working days

What is the minimum dimension of a niche space necessary to represent the overlaps among observed niches? This book presents a new technique for obtaining a partial answer to this elementary question about niche space. The author bases his technique on a relation between the combinatorial structure of food webs and the mathematical theory of interval graphs.

Professor Cohen collects more than thirty food webs from the ecological literature and analyzes their statistical and combinatorial properties in detail. As a result, he is able to generalize: within habitats of a certain limited physical and temporal heterogeneity, the overlaps among niches, along their trophic (feeding) dimensions, can be represented in a one-dimensional niche space far more often than would be expected by chance alone and perhaps always. This compatibility has not previously been noticed. It indicates that real food webs fall in a small subset of the mathematically possible food webs.

Professor Cohen discusses other apparently new features of real food webs, including the constant ratio of the number of kinds of prey to the number of kinds of predators in food webs that describe a community. In conclusion he discusses possible extensions and limitations of his results and suggests directions for future research.

Foraging Theory (Paperback): David W. Stephens, John R. Krebs Foraging Theory (Paperback)
David W. Stephens, John R. Krebs
R2,776 Discovery Miles 27 760 Ships in 18 - 22 working days

This account of the current state of foraging theory is also a valuable description of the use of optimality theory in behavioral ecology in general. Organizing and introducing the main research themes in economic analyses of animal feeding behavior, the authors analyze the empirical evidence bearing on foraging models and answer criticisms of optimality modeling. They explain the rationale for applying optimality models to the strategies and mechanics of foraging and present the basic "average-rate maximizing" models and their extensions. The work discusses new directions in foraging research: incorporating incomplete information and risk-sensitive behavior in foraging models; analyzing trade-offs, such as nutrient requirements and the threat of being eaten while foraging; formulating dynamic models; and building constrained optimization models that assume that foragers can use only simple "rules of thumb." As an analysis of these and earlier research developments and as a contribution to debates about the role of theory in evolutionary biology. Foraging Theory will appeal to a wide range of readers, from students to research professionals, in behavioral ecology, population and community ecology, animal behavior, and animal psychology, and especially to those planning empirical tests of foraging models.

Writing an effective NSF pre-proposal (Paperback): David W. Stephens Writing an effective NSF pre-proposal (Paperback)
David W. Stephens
R442 Discovery Miles 4 420 Ships in 18 - 22 working days

This book provides advice about how to write an NSF pre-proposal. It is written for biological scientists seeking funding from the US National Science Foundation. In 2012, NSF introduced a once-per-year competition based on a four-page preliminary proposal. This new system changes the landscape of the funding competition in many ways. Investigators must now generate enthusiasm for their ideas in four short pages. This book gives you the tools, and background, you need to compete in this brave new world.

The Prince of Cleveland (Paperback): David W. Stephens The Prince of Cleveland (Paperback)
David W. Stephens
R406 R385 Discovery Miles 3 850 Save R21 (5%) Ships in 18 - 22 working days

the prince of cleveland is a novel of suspense and thrills. Thomas Murphy is a common working stiff, who lives in Cleveland with his wife, Beth, and their three children Tommy, Jenny and little Danny. Miraculously, Thomas wins the Ohio Lottery and after the initial celebrating settle down, he then sets into motion his life long dream. He starts a business, hires over two thousand workers and proceeds to pick up the trash on the streets of Cleveland. After two years of hard work, the city sparkles and the citizens of Cleveland dub Thomas Murphy the Prince of Cleveland. Thomas's publicity and wealth draws the attention of an elite inter-national super-criminal named Lukas Krueger. He and his gang travel from Europe to Cleveland to investigate Thomas Murphy. Next, Lukas Krueger kidnaps Murphy's wife and three children. The FBI are brought in to handle Krueger's request for a thirty million dollar ransom, but after the FBI fail Thomas takes matters into his own hands. The storyline is thrilling as we read how Thomas continues to battle Lukas Krueger in an effort to first find and then rescue his family. As the story comes to a suspenseful and thrilling conclusion; you won't believe the surprise ending.

Foraging (Paperback): David W. Stephens Foraging (Paperback)
David W. Stephens
R1,812 Discovery Miles 18 120 Ships in 18 - 22 working days

Foraging is fundamental to animal survival and reproduction, yet it is much more than a simple matter of finding food; it is a biological imperative. Animals must find and consume resources to succeed, and they make extraordinary efforts to do so. For instance, pythons rarely eat, but when they do, their meals are large--as much as 60 percent larger than their own bodies. The snake's digestive system is normally dormant, but during digestion metabolic rates can increase fortyfold. A python digesting quietly on the forest floor has the metabolic rate of thoroughbred in a dead heat. This and related foraging processes have broad applications in ecology, cognitive science, anthropology, and conservation biology--and they can be further extrapolated in economics, neurobiology, and computer science.
"Foraging "is the first comprehensive review of the topic in more than twenty years. A monumental undertaking, this volume brings together twenty-two experts from throughout the field to offer the latest on the mechanics of foraging, modern foraging theory, and foraging ecology. The fourteen essays cover all the relevant issues, including cognition, individual behavior, caching behavior, parental behavior, antipredator behavior, social behavior, population and community ecology, herbivory, and conservation. Considering a wide range of taxa, from birds to mammals to amphibians, "Foraging" will be the definitive guide to the field.

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