This book gathers topical research from across the globe in the study of the habitat, pathology and environmental impact of the rodent population. Topics discussed include rodents in urban ecosystems of Russia and the USA; the European water vole of Western Siberia; a study of rodents in field investigations; the potential use of Proechimys (spiny rat) in the field of neuroscience; niche overlap and resource partitioning among three urban rodent species; helminth parasites of hydromyine rodents from the island of New Guinea and rodent management in animal farms by anticoagulant rodenticides.