Buffalo conjure up the West the way no other symbol can. They hold a special place in our culture and imagination. In this prize-winning collection, writers reveal the buffalo in plains ecology and culture from prehistoric times to its present and uncertain future.

Practical implementation of the proposed Jupiter Icy Moon Orbiter (JIMO) mission, which would require a total delta V of approximately 38 km/s, will require the development of a high power, high specific impulse propulsion system. Initial analyses show that high power gridded ion thrusters could satisfy JIMO mission requirements. A NASA GRC-led team is developing a large area, high specific impulse, nominally 25 kW ion thruster to satisfy both the performance and the lifetime requirements for this proposed mission. The design philosophy and development status as well as a thruster performance assessment are presented.

This collection features four peer-reviewed reviews on integrated pest management (IPM) in cereal cultivation. The first chapter describes a holistic approach to IPM using knowledge of the natural regulation of herbivore and weed populations and of natural succession in agricultural wetlands. It also highlights the need for an improved understanding of rice ecosystems in a holistic manner to ensure the economic and environmental sustainability of rice production. The second chapter provides a brief overview of IPM and reviews the range of control methods available to growers, including biological, cultural and chemical. The chapter considers the implementation of IPM programmes in wheat production and utilises a case study from New Zealand to demonstrate a successful example of it. The third chapter discusses key insect pests of sorghum, their life cycles and their impact on crop productivity and performance. The chapter reviews the use of IPM programmes as a sustainable alternative to controlling pest infestations without the need for insecticides. The final chapter examines host plant resistance as an ecological approach to managing crop pests and considers the process of evaluating resistance on the basis of insect behavior. The chapter also looks at breeding rice for resistance to insect pests and considers the constraints on the development and deployment of insect-resistant plant technology.

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.