Las aves acuáticas invernantes en Castilla y León PDF Download

Author: Mariano Rodríguez Alonso
Publisher:
ISBN: 9788497181341
Category :
Languages : es
Pages : 142

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Author: Eduardo de Juana
Publisher: Bloomsbury Publishing
ISBN: 1472905903
Category : Nature
Languages : en
Pages : 1411

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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.

Author: M. I. Evans
Publisher:
ISBN: 9780946888344
Category : Science
Languages : en
Pages : 816

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Volume 1 covers: Austria, Belarus, Belgium, Czech Republic, Denmark, Greenland, Estonia, Finland, Germnay, Scotland, Latvia, Liechtenstein, Lithuania, Luxembourg, Netherlands, Norway, Farao Islands, Svalbard, Poland, Republic of Ireland, Russia, Slovakia, Sweden, Switzerland, United Kingdom.

Author: Elisabet V. Wehncke
Publisher:
ISBN: 9781495122224
Category :
Languages : en
Pages :

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Author: Environmental Law Institute
Publisher: Environmental Law Institute
ISBN: 9781585760596
Category : Law
Languages : en
Pages : 220

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This publication describes the use of legal tools and incentives mechanisms for the conservation of private lands in Latin America, and assesses their implementation record. It reviews both mandatory provisions and the use of voluntary instruments such as easements and private reserve designations that have grown in use since the early 1990s. It ends with recommendations for an improved framework for private lands conservation, and presents model laws for the creation of private reserves and conservation easements.

Author: Commission on Genetic Resources for Food and Agriculture
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN: 9789251084229
Category : Forest germplasm resources conservation
Languages : en
Pages : 0

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Part I. Introduction -- Part II. Strategic priorities for action. Priority area 1 : Improving the availability of, and access to, information on FGR -- Priority area 2 : In situ and ex situ conservation of FGR -- Priority area 3 : Sustainable use, development and management of FGR -- Priority area 4 : Policies, institutions and capacity-building

Author: Richard C. Brusca
Publisher: University of Arizona Press
ISBN: 9780816527397
Category : Science
Languages : en
Pages : 384

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Few places in the world can claim such a diversity of species as the Gulf of California (Sea of Cortez), with its 6,000 recorded animal species estimated to be half the number actually living in its waters. So rich are the Gulf's water that over a half-million tons of seafood are taken from them annuallyÑand this figure does not count the wasted by-catch, which would triple or quadruple that tonnage. This timely book provides a benchmark for understanding the Gulf's extraordinary diversity, how it is threatened, and in what ways it isÑor should beÑprotected. In spite of its dazzling richness, most of the Gulf's coastline now harbors but a pale shadow of the diversity that existed just a half-century ago. Recommendations based on sound, careful science must guide Mexico in moving forward to protect the Gulf of California. This edited volume contains contributions by twenty-four Gulf of California experts, from both sides of the U.S.-Mexico border. From the origins of the Gulf to its physical and chemical characteristics, from urgently needed conservation alternatives for fisheries and the entire Gulf ecosystem to information about its invertebrates, fishes, cetaceans, and sea turtles, this thought-provoking book provides new insights and clear paths to achieve sustainable use solidly based on robust science. The interdisciplinary, international cooperation involved in creating this much-needed collection provides a model for achieving success in answering critically important questions about a precious but rapidly disappearing ecological treasure.

Author: Christopher A. Lepczyk
Publisher: Univ of California Press
ISBN: 0520953894
Category : Science
Languages : en
Pages : 375

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Now that more than half of the world’s population lives in cities, the study of birds in urban ecosystems has emerged at the forefront of ornithological research. An international team of leading researchers in urban bird ecology and conservation from across Europe and North America presents the state of this diverse field, addressing classic questions while proposing new directions for further study. Areas of particular focus include the processes underlying patterns of species shifts along urban-rural gradients, the demography of urban birds and the role of citizen science, and human-avian interaction in urban areas. This important reference fills a crucial need for scientists, planners, and managers of urban spaces and all those interested in the study and conservation of birds in the world’s expanding metropolises.

Author: Tomohiro Sasanami
Publisher: Springer
ISBN: 9811039755
Category : Science
Languages : en
Pages : 214

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This book provides everything from basic knowledge to the recent understandings of avian reproductive physiology, covering many unique aspects. It will inspire avian biologists as well as researchers in varied fields and will offer important steps towards better fertilization success in birds.In spite of the recent remarkable developments in modern technology, a comprehensive understanding of the reproductive mechanisms is still far in the future due to the diverse reproductive tactics in vertebrates. Birds have highly refined reproductive strategies and some of those strategies are unique to birds. However, together with ongoing progress of the genome analysis of birds and the crying need for further increase in meat and egg production, research on avian reproduction is now accelerating and becoming more important.With contributions by leading scientists, the book explains avian primordial germ cells; the sex-determining mechanism; reproductive endocrinology and immunology; sperm, egg, and egg coat; sperm–egg interaction; polyspermic fertilization; seasonal reproduction; social triggers; hormonal and behavioral changes; broodiness; oviductal sperm storage; and biotechnology. This book is recommended for all researchers and students who are interested in birds or reproduction.

Author: Edgar Leopold Layard
Publisher:
ISBN:
Category :
Languages : en
Pages : 942

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