6 Ergebnisse.

This book focuses on rarity, its spatial and temporal dynamics, causes, and interaction with conservation. Although they can be viewed from many different perspectives, rare species are of particular concern to conservationists because they tend to have a greater probability of extinction. This book therefore identifies a number of important issues both heuristic and practical.

Keine Beschreibung.

No species occurs everywhere. Indeed, the majority are absent from most places, and where they do occur they are usually quite rare. Gaston discusses the structure of these distributions - the structure of the geographic ranges of species. Gaston is particularly concerned with the factors that determine the limits to a species' geographic range, how the sizes of those ranges vary, and patterns in that variation. Also considered are the distrib...

Overview of our current understanding of how people influence, and are influenced by, the 'green' component of urban environments.

An overview of our current understanding of how people influence, and are influenced by, the 'green' component of urban environments.

Contenido: Prefacio - Agradecimientos - ¿Qué es la biodiversidad? - La biodiversidad a través del tiempo - Mapeando la biodiversidad - ¿Importa la biodiversidad? - Impactos humanos - 6. Manteniendo la biodiversidad - Referencias - Índice alfabético.