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Biodiversity in Drylands, the first internationally based synthesis volume in the Long-Term Ecological Research (LTER) Network Series, unifies the concepts of species and landscape diversity with respect to deserts. Within this framework, the book treats several emerging themes, among them:

- how animal biodiversity can be supported in deserts
- diversity's relation to habitat structure, environmental variability, and species interactions
- the relation between spatial scale and diversity
- how to use a landscape simulation model to understand diversity
- microbial...

This research relates to the two-phase mosaic made by shrubs and intershrub patches as a simple form of landscape diversity, and aims to study its effect on ground-dwelling beetle diversity. I studied the effect of shrubs on beet;e diversity with emphasis on the difference between shrub patch and intershrub patch. This difference is termed "contrast." The study was carried out in two stations within Israel - (1) an arid, shrub-poor ecosystem (Avdat) and (2) a semi-arid shrub-rich ecosystem (Lehavim). Results of pitfall trapping showed that more beetles were found under shrub patches in the...