Download Lizards: Windows to the Evolution of Diversity (Organisms by Harry W. Greene, Visit Amazon's Eric R. Pianka Page, search PDF

By Harry W. Greene, Visit Amazon's Eric R. Pianka Page, search results, Learn about Author Central, Eric R. Pianka, , Laurie J. Vitt

From tiny to huge, from drab to remarkably attractive, from risk free to venomous, lizards are stunning items of traditional choice. This booklet, lavishly illustrated with colour images, is the 1st complete reference on lizards world wide. obtainable, scientifically up to date, and written with contagious enthusiasm for the topic, Lizards: home windows to the Evolution of variety covers species evolution, range, ecology, and biology. Eric R. Pianka and Laurie J. Vitt have studied and photographed participants of virtually all lizard households around the world, they usually carry to the publication a deep wisdom in accordance with vast firsthand event with the animals of their typical habitats. half One explores lizard existence, answering such questions as why lizards are energetic once they are, why they behave as they do, how they steer clear of predators, why they consume what they devour, and the way they reproduce and socialize. partly the authors take us on a desirable travel of the world's manifold lizard species, starting with iguanians, an evolutionary team that comes with the most extraordinary lizards, the real chameleons of Africa and Madagascar. We additionally meet the glass lizard, capable of holiday its tail into many hugely motile items to distract a predator from its physique; lizards that could run throughout water; and limbless lizards, akin to snakes. half 3 offers an exceptional international view of evolutionary tendencies that experience formed present-day lizard groups and considers the influence of people on their future.A definitive source containing many wonderful anecdotes, this excellent booklet opens a brand new window to the flora and fauna and the evolution of lifestyles on the earth.

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Extra info for Lizards: Windows to the Evolution of Diversity (Organisms and Environments)

Sample text

The distribution of the two species across patch sizes gave a good fit to the model predictions. A similar process operates, on a larger spatial scale, among large mammalian carnivores. For many of these species, which come into conflict with people, “suitable habitat” occurs only inside reserves where they are protected from persecution (Woodroffe and Ginsberg 1998). Animals ranging beyond park borders, however, suffer high mortality due to conflicts with local people, and such mortality has been a major cause of extinction in small, isolated populations (Woodroffe and Ginsberg 1998).

The need to locate such breeding vacancies may underlie the forays that frequently precede dispersal in a variety of species (Waser 1996). Managing Dispersal It is clear that effective conservation often depends upon managing dispersal, though such management may entail limiting or encouraging dispersal, depending on the circumstances. Propensity to disperse—or not—depends upon a complex array of behaviors that are often species-, gender-, or population-specific. In this section, I discuss approaches to population or environmental management that have been used to manage dispersal.

Whereas most of this mortality involves resident rather than dispersing animals, mortality of animals dispersing across the inhospitable matrix is likely to be as high or higher, and may effectively halt exchange of animals between reserves. The Behavioral Ecology of Dispersal Because dispersal affects both colonization and extinction rates, effective conservation may demand management to encourage or discourage dispersal. Determining whether such management is needed and identifying strategies 35 PART II—Resource-Use Strategies in Space and Time most likely to be effective demand information on dispersal behavior.

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