May I first congratulate, inconditionally, the Association MEDMARAVIS for organizing this symposium and for inviting me re presenting the Sardinian Ministry of the Environment. I would like to assert that such initiatives help a great deal and in a concrete way, Heads of government departments in charge of land use and natural resources. At this first symposium of the Mediterranean Marine Avifau na I must congratulate the scientific faculty for proposing such an ample spectrum of high quality papers dealing with diverse parts of the Mediterranean and beyond. I am sure that their con tributions will further scientific research, will help to pro tect our environment and will lead, more especially, to the ma nagement and conservation of seabirds. To know in order to manage has often been said at this sym posium. In fact, it is not possible to manage thoughtfully and rationally the natural resources without knowing more profound ly how they function. This reasoning is also valid on a more ge neral scale: regional planning of human activities should not disregard the evaluation of the ecosystem.

May I first congratulate, inconditionally, the Association MEDMARAVIS for organizing this symposium and for inviting me re presenting the Sardinian Ministry of the Environment. I would like to assert that such initiatives help a great deal and in a concrete way, Heads of government departments in charge of land use and natural resources. At this first symposium of the Mediterranean Marine Avifau na I must congratulate the scientific faculty for proposing such an ample spectrum of high quality papers dealing with diverse parts of the Mediterranean and beyond. I am sure that their con tributions will further scientific research, will help to pro tect our environment and will lead, more especially, to the ma nagement and conservation of seabirds. To know in order to manage has often been said at this sym posium. In fact, it is not possible to manage thoughtfully and rationally the natural resources without knowing more profound ly how they function. This reasoning is also valid on a more ge neral scale: regional planning of human activities should not disregard the evaluation of the ecosystem.

Population Biology of Passerine Birds is an up-to-date synthesis of the most recent developments in its field, especially in the framework of modern life history theories. Major topics include quantitative genetics, ecological physiology, the study of social structures using individually marked birds in the wild, and finally biometry, which allows to quantify such important parameters as survival at different stages of life and to create a model of the overall demography of the populations.

This new volume from the SETAC (Society of Environmental Toxicology and Chemistry) Special Publications Series examines the phenomenon of persistent pollutants in the seas and oceans. Unlike the highly visible and obvious effects caused by oil, certain chemicals have unseen but long-term and far-reaching effects on the marine ecosystem. They often have long half-lives, are carried great distances and pass easily through the food chain from prey to predator. The behaviour and effects of these persistent pollutants on each type of marine animal (invertebrates, vertebrates, fish, mammals and fish-eating birds) are described. A final overview draws the observations and conclusions together presenting a work that provides a foundation for understanding the behaviour of persistent pollutants in the marine environment.

This authoritative title is the definitive avifauna covering the Iberian Peninsula. The Iberian Peninsula is one of Europe's most ornithologically varied regions offering a host of regional specialities. It includes famous birding hotspots such as the Coto Donaña wetlands, mountainous areas such as the Picos de Europa and the Pyrenees, the Mediterranean cork and holm oak forests of the southwest, the migration crossroads of the Strait of Gibraltar and the steppe-like plains of Extremadura and Alentejo. Large numbers of birders from around Europe visit the region to see this wealth of winged wildlife, but to date there has been no comprehensive regional avifauna in English. Birds of the Iberian Peninsula is a national avifauna that fills this gap in the ornithological literature. Full-colour throughout, the book begins with authoritative introductory chapters covering subjects such as geography, climate, habitats, the history of Iberian ornithology and the composition of the avifauna. The species accounts then cover every species recorded in mainland Spain, the Balearic Islands, Portugal, Gibraltar and Andorra, including the many vagrants. For each species there is detailed treatment of distribution – with maps of breeding and wintering ranges – habitat selection, population trends, historical and current status, migration and conservation.

Clive Finlayson, a native of the Rock and a trained ornithologist, presents a fascinating account of this region and its resident and transitory bird life. The Strait of Gibraltar is famous as a major point of passage for Palaearctic birds migrating between their European breeding grounds and their winter quarters in Africa. The first chapter of the book describes the area, which broadly defined includes the Coto Donana in the north and the Merja Zerga in the south, and the geographic and climatological characteristics which make it a suitable crossing place. In scope this book goes beyond the strict definition of the Strait and, following Irby's 19th Century work, examines the rich area where Europe meets Africa. The chapters which follow describe in detail the migration patterns of the principal passage species including their origins, destinations and overall numbers, showing how the precise conditions of weather and visibility affect the specific choice of route and timing of the crossing. The breeding and wintering bird communities are then considered and the ornithology of the entire region summarized. Whether or not you have ever witnessed the thousands of raptors, storks and other birds that may make this legendary crossing in a single day, this book will conjure the spirit of this extraordinary place. Delightful illustrations by lan Willis complete an important and entertaining book.