This easy-to-use identification guide to the whales, dolphins and seals found in Southern African waters and the Southern Ocean is compact yet comprehensive.

Close to 50 species occur in the region: from the demonstrative Humpback Whale and Dusky Dolphin to the striking Leopard Seal and massive Blue Whale.

A COLLECTION OF ESSAYS PLACING THE HUMAN - WOLF RELATIONSHIP IN HISTORICAL PERSPECTIVE International in range and chronological in organisation, this volume aims to grasp the maincurrents of thought about interactions with the wolf in modern history. It focuses on perceptions, interactions and dependencies, and includes cultural and social analyses as well as biological aspects. Wolves have been feared and admired, hunted and cared for. At the same historical moment, different cultural and social groups have upheld widely diverging ideas about the wolf. Fundamental dichotomies in modern history, between nature and culture, wilderness and civilisation and danger and security, have been portrayed in terms of wolf - human relationships. The wolf has been part of aesthetic, economic, political, psychological and cultural reasoning albeit it is nowadays mainly addressed as an object of wildlife management. There has been a major shift in perception from dangerous predator to endangered species, but the big bad fairytale wolf remains a cultural icon.

Avian Immunology, Third Edition contains a detailed description of the avian innate immune system, encompassing the mucosal, enteric, respiratory and reproductive systems. The diseases and disorders it covers, include immunodepressive diseases and immune evasion, autoimmune diseases, and tumors of the immune system. Practical aspects of vaccination are examined as well. Extensive appendices summarize resources for scientists including cell lines, inbred chicken lines, cytokines, chemokines, and monoclonal antibodies. With contributions from the foremost international experts in the field, Avian Immunology 3rd, provides the most up-to-date crucial information not only for poultry health professionals and avian biologists, but also for comparative and veterinary immunologists, graduate students and veterinary students with an interest in avian immunology. Avian Immunology, Third Edition, is a fascinating and growing field and surely provides new and exciting insights for mainstream immunology in the future.

Field Crop Arthropod Pests of Economic Importance presents detailed descriptions of the biology and ecology of important arthropod pest of selected global field crops. Standard management options for insect pest control on crops include biological, non-chemical, and chemical approaches. However, because agricultural crops face a wide range of insect pests throughout the year, it can prove difficult to find a simple solution to insect pest control in many, if not most, cropping systems. A whole-farm or integrated pest management approach combines cultural, natural, and chemical controls to maintain insect pest populations below levels that cause economic damage to the crop. This practice requires accurate species identification and thorough knowledge of the biology and ecology of the target organism. Integration and effective use of various control components is often enhanced when the target organism is correctly identified, and its biology and ecology are known. This book provides a key resource toward that identification and understanding. Students and professionals in agronomy, insect detection and survey, and economic entomology will find the book a valuable learning aid and resource tool.