%0 Book Section %A Deschner, Tobias %A Arandjelovic, Milica %A Kühl, Hjalmar S. %+ Chimpanzees, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society Endocrinology Laboratory, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society Chimpanzees, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society Great Ape Evolutionary Ecology and Conservation, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society Chimpanzees, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society Great Ape Evolutionary Ecology and Conservation, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society %T Collecting biologically relevant information: DNA to population density : %G eng %U https://hdl.handle.net/11858/00-001M-0000-002C-4809-5 %R 10.1037/0000011-005 %D 2017 %8 23.01.2017 %* Review method: peer-reviewed %X Measuring behavior has been one of the main focuses of comparative psychology. Initially, individual physiology was one of the primary units of investigation in the field. Recently, however, genetic information—at both the individual and population levels—has elucidated some of the mechanisms underlying previously observed physiological correlates. Furthermore, understanding behavioral diversity at the group and population level is critical for understanding the evolution of the variation observed between individuals. In this chapter, we focus on the methods that allow for adequate sample and data collection in these three areas of research, to provide a basic introduction to each area. For more detailed information, interested readers may consult the references that have been provided, which refer to original method descriptions and associated case studies. Furthermore, a detailed description of field methods can be found in Setchell and Curtis (2011). The chapter is organized into three main sections. The first section is about measuring hormones in psychological research. We present the main objectives of this approach; the key materials involved; and issues related to their collection, storage, and analysis. The second part focuses on measuring genetic information and shares with the first section the same basic structure. The third section focuses on methods for estimating population densities. %B APA handbook of comparative psychology Vol 1: Basic concepts, methods, neural substrate, and behavior %E Call, Josep; Burghardt, Gordon M.; Pepperberg, Irene M.; Snowdon, Charles T.; Zentall, Thomas %P 87 - 113 %I American Psychological Association %C US %@ 1-4338-2350-0 978-1-4338-2350-3