Chapter 1 - Animal Migration: A Context for Using New Techniques and Approaches

Abstract

This chapter attempts to delineate the evolutionary trajectory of animal migration and the technological developments to chart the same. A detailed overview of migratory movements in diverse species is made in order to highlight the various factors involved in defining the term “migration,” following which, the authors turn to migratory populations as a whole, to discuss the concept of migratory connectivity and its links with conservation and effective species management, with particular regard to different breeding practices. The scientific tools employed to track and study the movements of migratory creatures are also outlined, paying close attention to the benefits and pitfalls of using (1) extrinsic markers such as transmitters, radars and satellites and (2) intrinsic markers such as contaminants, trace elements, stable isotopes, and the like. Finally, briefly mentioned are the different technological breakthroughs in the last decade that have helped advance the understanding of animal migration as well as develop suitable conservation approaches.