This book is devoted to the Little Bustard, a medium sized Paleartic steppe bird whose distribution ranges from the Iberian Peninsula to Central Asia. At present, the European population is suffering a severe decline mainly due to agricultural intensification, although its status and concerns in non-European countries are relatively unknown. In spite of this dramatic situation, the Little Bustard is an interesting model species for topics as varied as phylogeny, life history evolution and demographic traits, sexual selection and lekking behavior, habitat selection, intra- and interspecific relationships, or interaction with farming and other anthropogenic disturbances. This book provides an updated, interdisciplinary, and worldwide review of the most recent information of this crucial species in the Palearctic steppe-bird community, from specific biological aspects and traits to research-focused management. Some of the most prominent scientists from different fields (systematics, breeding ecology, behavior, competence, predation, population dynamics, farming, conservation) update and synthesize the existing information on a singular, threatened and vulnerable species.

Vincent Bretagnolle, 60, is a scientist from CNRS (since 1991), Directeur de recherche (1ère classe) and previous head of Centre d'Etudes Biologiques de Chizé. He is working on the effects of anthropogenic changes on biodiversity, ecosystem functioning and ecosystem services. In particular, his work has focused on the consequences of agriculture and land use changes on spatio-temporal dynamics of biodiversity, the effects of biodiversity and farming practices on crop yields (using the paradigm shift of agro-ecology), and he also manages citizen science programs. He created the ' Zone Atelier Plaine & Val de Sèvre' (ZA-PVS) where data collection on the whole socio-ecosystem started in 1994. He manages Agri-environmental measures (AES) implementation on the NATURA 2000 area (half of ZA-PVS is a NATURA 2000 site), including organic farming, where up to 10 000 hectares of contract with farmers have been implemented. He has been involved with research on ecology and conservation of Little Bustard since 1995, and was in charge of the scientific activities of two LIFE projects in France on Little Bustard conservation.Juan Traba is Associate Professor at the Universidad Autónoma de Madrid (UAM), current subHead of the Ecology Department of the UAM, and member of the Terrestrial Ecology Group (TEG-UAM). He is a researcher in evolutionary ecology, species interactions, and conservation ecology, with expertise in steppe birds. He has special interest on niche theory, community assembly and the analysis of anthropic effects on wildlife, especially of agrarian management but also of solar and wind farms. Manuel B. Morales is Associate Professor at the Department of Ecology of the Autónoma University of Madrid (UAM), Spain, where he teaches courses on Ecology and Conservation Biology. His research is focused on animal habitat selection and ecological niche partitioning (considering different components such as space, climate, diet) between coexisting species and their implications for conservation. He carries out this research on steppe and farmland birds, and particularly on the little bustard, which he has studied for more than 20 years. Other aspects of these species' biology that he has paid attention to in the past and continues to investigate are their mating systems, movement patterns and population genetics. Last but not least, an increasingly relevant part of his research has to do with the impact of agricultural management on the structure and functioning of farmland biological communities, focusing mainly on birds, but also arthropods and vascular plants.