The last decade has seen rapid and major advances in our understanding of the physiological ecology of plants. This volume contains 22 chapters that review some of these advances and new challenges. The chapters cover five broad themes: resource acquisition and utilisation; interactions between organisms; responses to global environmental changes; ecosystems; and integration and scaling. The book brings together an unrivalled collection of leading practitioners in the discipline from North America, Europe and Australia and adopts a broad approach, ranging from the molecular to the ecosystem level. It will be a valuable tool for researchers and advanced students in the discipline.