Mid-winter numbers of waterbirds in Bulgaria (1977-2001) :
نام عام مواد
[Book]
ساير اطلاعات عنواني
results from 25 years of mid-winter counts carried out at the most important Bulgarian wetlands /
نام نخستين پديدآور
Tanyo Michev & Lyubomir Profirov.
وضعیت نشر و پخش و غیره
محل نشرو پخش و غیره
Sofia :
نام ناشر، پخش کننده و غيره
Pensoft,
تاریخ نشرو بخش و غیره
2003.
مشخصات ظاهری
نام خاص و کميت اثر
1 online resource (vii, 160 pages) :
ساير جزييات
illustrations
یادداشتهای مربوط به کتابنامه ، واژه نامه و نمایه های داخل اثر
متن يادداشت
Includes bibliographical references (pages 97-100) and indexes.
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
The present book for the first time in Bulgaria summarizes results from 25 years of counts in the most important wetlands in the country referring to the Mid-winter numbers of the waterbirds there. This long-term survey is a part of the regular counts of Divers, Grebes, Pelicans, Cormorants, Swans, Geese, Ducks, Coots, Waders, and Gulls, which have taken place in Europe, North Africa and the Middle East since 1967. The book consists of two main parts. In the first one are presented 45 of the most significant Bulgarian wetlands (lakes, swamps, reservoirs and other water bodies) along the Danube and Black Sea coasts and inside the country. For each one of the wetlands there is a short characteristic description indicating the average and the maximum values for the wintering birds, the three most numerous species, the world threatened species and those exceeding the 1% Ramsar criteria. In the second part of the book are presented 106 species of waterbirds with the dynamics of their numbers for the period 1977-2001 including graphics for most of the species. The characteristic changes that have taken place in their wintering populations and the tendencies established by other authors for Europe are also indicated. The book is a result of many years of effort by ornithologists - professional and non-professional, of major Bulgarian Scientific institutions, non-government organizations and state departments. It is illustrated with many black and white drawings by the famous Bulgarian artist Georgi Pchelarov. The book will be especially useful for those who are interested in birdwatching, wetland management and conservation.
یادداشتهای مربوط به نیازمندی های سیستم (منابع الکترونیک)و جزئیات فنی
متن يادداشت
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.
ویراست دیگر از اثر در قالب دیگر رسانه
عنوان
Mid-winter numbers of waterbirds in Bulgaria (1977-2001).
شماره استاندارد بين المللي کتاب و موسيقي
9789546421753
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Water birds-- Bulgaria.
موضوع مستند نشده
Wetlands-- Bulgaria.
موضوع مستند نشده
NATURE-- Animals-- Birds.
موضوع مستند نشده
NATURE-- Birdwatching Guides.
موضوع مستند نشده
SCIENCE-- Life Sciences-- Zoology-- Ornithology.
موضوع مستند نشده
Water birds.
موضوع مستند نشده
Wetlands.
نام جغرافیایی به منزله موضوع
موضوع مستند نشده
Bulgaria.
بدون عنوان
7
مقوله موضوعی
موضوع مستند نشده
NAT-- 004000
موضوع مستند نشده
NAT-- 043000
موضوع مستند نشده
PSVW6
موضوع مستند نشده
QL
موضوع مستند نشده
SCI-- 070040
رده بندی ديویی
شماره
598
.
176
ويراست
22
رده بندی کنگره
شماره رده
QL690
.
B9
نشانه اثر
M53
2003eb
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )