Luc-Alain Giraldeau – författare

Why are some species monogamous while others are polygamous? Why are males usually more ornamented than females? What makes one organism the hunter and another the hunted? Why do some creatures stick together in groups while others prefer to go it alone? Can we talk of animal culture? Behavioural Ecology provides a fascinating insight into the evolutionary and ecological processes that underpin animal behaviour. Opening with an overview of the evolutionary and methodological framework of behavioural ecology, the book goes on to explore behaviours in terms of the selective pressures involved in their design. It addresses natural selection, sexual selection, and gene selection, before closing with an investigation of the human impact on behavioural ecology. Featuring chapters written by university teachers, each with research expertise in their respective fields, Behavioural Ecology has been moulded by Danchin, Giraldeau, and Cezilly to give a uniform voice throughout: it is a text with all the qualities of a multi-author book, but without the potential drawbacks. Behavioural Ecology offers a fresh, contemporary account of a field re-invigorated by advances in the last decade, making it the ideal teaching and learning text. Online Resource Centre: For registered adopters of the book: -Figures from the book available to download, to facilitate lecture preparation For students: -Library of web links, giving ready access to additional resources

It's easy to stand in awe of a city's impressive skyline, marveling at its buildings reaching for the clouds and its vast network of roadways and train lines crisscrossing in every direction. It can often seem like everything in a city is man-made, all concrete, steel, and glass. But even the asphalt jungle is not all asphalt - a sidewalk's cracks are filled with nature, if we know where and how to look. To aid us in this quest is "Nature All Around Us", which will help us to recognize (and look after) the natural world we traipse through in our daily lives. "Nature All Around Us" uses the familiar - such as summer Sundays humming with lawn mowers, gray squirrels foraging in planters, and flocks of pigeons - in order to introduce basic ecological concepts. In twenty-five short chapters organized by scale, from the home to the neighborhood to the city at large, it offers a subtle and entertaining education in ecology sure to inspire appreciation and ultimately stewardship of the environment.Various ecological concepts that any urban dweller might encounter are approachably examined, from understanding why a squirrel might act aggressively towards its neighbor to how nutrients and energy contained within a discarded apple core are recycled back into the food chain. Streaming through the work is an introduction to basic ecology, including the dangers of invasive species and the crucial role played by plants and trees in maintaining air quality. Taken as a whole, "Nature All Around Us" is an unprecedented field guide to the ecology of the urban environment that invites us to look at our towns, cities, and even our backyards through the perspective of an ecologist. It is an entertaining, educational, and inspiring glimpse into nature in seemingly unnatural settings, a reminder that we don't have to trek into the wild to see nature - we just have to open our eyes.

Although there is extensive literature in the field of behavioral ecology that attempts to explain foraging of individuals, social foraging--the ways in which animals search and compete for food in groups--has been relatively neglected. This book redresses that situation by providing both a synthesis of the existing literature and a new theory of social foraging. Giraldeau and Caraco develop models informed by game theory that offer a new framework for analysis. Social Foraging Theory contains the most comprehensive theoretical approach to its subject, coupled with quantitative methods that will underpin future work in the field. The new models and approaches that are outlined here will encourage new research directions and applications. To date, the analysis of social foraging has lacked unifying themes, clear recognition of the problems inherent in the study of social foraging, and consistent interaction between theory and experiments. This book identifies social foraging as an economic interaction between the actions of individuals and those of other foragers.This interdependence raises complex questions about the size of foraging groups, the diversity of resources used, and the propensity of group members to exploit each other or forage cooperatively. The models developed in the book will allow researchers to test their own approaches and predictions. Many years in development, Social Foraging Theory will interest researchers and graduate students in such areas as behavioral ecology, population ecology, evolutionary biology, and wildlife management.