The Numbers And Distribution Of The Great Skua
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The Numbers And Distribution Of The Great Skua
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Author : Lars Chr Lund-Hansen
language : en
Publisher:
Release Date : 1991
The Numbers And Distribution Of The Great Skua written by Lars Chr Lund-Hansen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Great skua categories.
The Skuas
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Author : Robert W. Furness
language : en
Publisher: A&C Black
Release Date : 2010-10-30
The Skuas written by Robert W. Furness and has been published by A&C Black this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-30 with Nature categories.
A comprehensive monograph of the skua. Many birdwatchers may never have seen a skua; those who have will most probably have vivid memories of one or other species flying powerfully past a headland, or twisting and diving in pursuit of its piratical intentions towards a food-laden seabird - or, perhaps more memorably still, of themselves taking evasive action from the power-diving irate skua whose territory they have unwisely invaded. The full classification of the skuas is still debated, but Dr Furness of the Applied Ornithology Unit, Glasgow University, favours six species, of two genera, with five subspecies, based on current knowledge and his own long and dedicated field studies and research. All of the species are treated comparatively under the following chapter titles: Early history and classification, Distributions and populations, Migration patterns, Reversed sexual size dimorphism, Behaviour, Food and feeding, Kleptoparasitism, Plumage polymorphism, Breeding systems and social organisation, Breeding - laying to hatching, Breeding - hatching to fledging, Population dynamics, Pollutants, Skuas and agriculture, Skuas and conservation. The text is supported by 100 maps and diagrams, 30 photographs and 65 tables. In addition, John Busby contributes 35 evocative drawings which more than embellish this erudite and readable summary of an impressive and diverse group of birds. Jacket paintings by John Busby.
Birds In Scotland
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Author : Valerie M. Thom
language : en
Publisher: Bloomsbury Publishing
Release Date : 2010-11-30
Birds In Scotland written by Valerie M. Thom and has been published by Bloomsbury Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-30 with Nature categories.
'The most important work on the birds of Scotland ever published' - British Birds This comprehensive study and review of the birds in Scotland follows on from where the celebrated two volumes of The Birds of Scotland (1953), by Dr Baxter and Miss Rintoul, left off. It does more than that, however, since not only has there been a profound increase in ornithological coverage and data (as reflected in the species accounts), there have also been great changes in habitat and environment since the days of Baxter & Rintoul. These aspects form the themes of the ten preliminary chapters reviewing the Scottish scene today in terms of habitat, conservation, birdwatching and the changes in species status and distribution. The species accounts, the backbone of the book, review the period 1950-83 but include, where practicable, records of rarities and details of counts up to the spring of 1985; there are also brief summaries of earlier data based on the researches of Baxter & Rintoul. In all, 497 species are dealt with. The texts of major species accounts are complemented by 173 distribution maps and many tables of relevant data, and there are 129 species drawings by a team of artists under the editorship of Donald Watson, who also contributes chapter head pieces and other drawings. A section of photographs illustrates the varied habitats typical of Scotland today. There are, further, appendices and an extensive bibliography. The book will be of great interest to all birdwatchers in Scotland but of special value, too, to the many thousands of birdwatching visitors from elsewhere in these islands and from countries abroad. The Scottish Ornithologists' Club, for whom the book is published, and all whose records and researches made the author's work possible, have reason to be proud of Valerie Thom's achievement.
Skuas And Jaegers
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Author : Klaus Malling Olsen
language : en
Publisher: A&C Black
Release Date : 2013-09-05
Skuas And Jaegers written by Klaus Malling Olsen and has been published by A&C Black this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-05 with Nature categories.
Skuas (and jaegers) are a fascinating and popular group of seabirds that make up a subfamily of just seven species. They can be divided into two main groups: the larger species of Catharacta skuas which are mainly found in the southern hemisphere (with Great Skua breeding in the north), and the three Stercorarius species (also known as jaegers) which breed in the northern hemisphere. Both northern and southern skuas breed at high latitudes and several species are long-distance migrants, performing spectacular migrations through most of the world's oceans, sometimes even flying overland. The individual plumage variation in some species is enormous, creating one of the most puzzling yet fascinating challenges in modern field identification. This is the first complete identification guide to the skuas of the world. It is designed to enable species identification and correct ageing, and the information presented is based on years of study in the field, detailed examination of photographs and museum skins, and extensive research of the relevant literature. The comprehensive text is accompanied by twelve exquisite colour plates by Hans Larsson, illustrating a wide range of plumages. In addition, there are eight pages of colour photographs and numerous black and white photographs and drawings that show key identification features. With this book, the seabird enthusiast should at last be able to identify almost every skua encountered, whether on a seawatch or at sea.
Encyclopedia Of The Arctic
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Author : Mark Nuttall
language : en
Publisher: Routledge
Release Date : 2005-09-23
Encyclopedia Of The Arctic written by Mark Nuttall and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-09-23 with Reference categories.
With detailed essays on the Arctic's environment, wildlife, climate, history, exploration, resources, economics, politics, indigenous cultures and languages, conservation initiatives and more, this Encyclopedia is the only major work and comprehensive reference on this vast, complex, changing, and increasingly important part of the globe. Including 305 maps. This Encyclopedia is not only an interdisciplinary work of reference for all those involved in teaching or researching Arctic issues, but a fascinating and comprehensive resource for residents of the Arctic, and all those concerned with global environmental issues, sustainability, science, and human interactions with the environment.
Sand Lance A Review Of Biology And Predator Relations And Annotated Bibliography
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Author :
language : en
Publisher:
Release Date : 1999
Sand Lance A Review Of Biology And Predator Relations And Annotated Bibliography written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Ammodytes categories.
Research Paper Pnw
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Author :
language : en
Publisher:
Release Date : 1978
Research Paper Pnw written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Forests and forestry categories.
The Atlas Of Breeding Birds In Britain And Ireland
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Author : J.T.R. Sharrock
language : en
Publisher: A&C Black
Release Date : 2010-12-30
The Atlas Of Breeding Birds In Britain And Ireland written by J.T.R. Sharrock and has been published by A&C Black this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-12-30 with Science categories.
This companion volume to The Atlas of Wintering Birds in Britain and Ireland (see back flap) is derived from yearly surveys of breeding birds in Britain and Ireland during 1968-72, organised by the British Trust for Ornithology and the Irish Wildbird Conservancy. Each of the 3,862 10-km squares of Britain and Ireland was visited during the five years and the resulting records (over 285,000) are summarised in the maps. The full-page maps plot the known distribution of all but 11 of the 229 breeding species located during the survey period. Each map has an accompanying text which describes the species' habitat, the problems involved in proving breeding, the historical background to the species' range and any changes in its numbers. The probable reasons for these changes are discussed and an attempt made to assess the total number of birds for each species. "The book is a major triumph for the BTO and IWC and a fitting reward to the many thousands of field workers who made its compilation possible. It is an indispensable source of up-to-date information, a pleasure to read, a spur to thought and further enquiry, and, by no means least, a most elegant example of book production." Stanley Cramp, British Birds "This remarkable work is one of the most exciting ornithological achievements of the century ... the book is admirable in every way: it is beautifully produced, and charmingly illustrated with black and white vignettes on nearly every page of text. Above all, it provides an authoritative account of the present situation; in due course it will also serve as a standard against which to measure future changes. Excellent value and strongly recommended." G. L. A-W., Wildfowl News Jacket design by Robert Gillmor
The Status Of Seabirds In Britain And Ireland
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Author : Clare Lloyd
language : en
Publisher: A&C Black
Release Date : 2010-10-30
The Status Of Seabirds In Britain And Ireland written by Clare Lloyd and has been published by A&C Black this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-30 with Nature categories.
The Status of Seabirds in Britain and Ireland book presents the most up-to-date information available on these seabird populations, their numbers and distribution, and their changing fortunes in recent years. The oceanographic and coastal features of the British Isles provide a wealth of ideal habitats for breeding seabirds and it is no surprise that the British and Irish seabird populations are of international importance, both in sheer numbers and in species diversity. Indeed, for some species British waters are host to the greater part of the world's population. The Operation Seafarer survey, carried out in 1969-70, provided a baseline for future work that led to the establishment of the Seabird Colony Register by the Seabird Group and the Nature Conservancy Council. The results and analysis of their counts during 1985-87 form the basis for this book. Improved census methodology and a new computerised database has set the standards for seabird monitoring in future decades. In Part 1 the general biology and population trends of British seabirds are described to set the scene for Part 2, in which the results and analysis for each of the 24 breeding species are given in detail. Full descriptions of the counting methods and the estimating factors used provide guidelines for future surveys not only in Britain, but wherever seabirds are of interest and importance. No-one with an interest in seabirds or conservation can afford to be without this authoritative book, nor but be grateful to the small army of professionals and amateurs who have so ably explored our coastal habitats. Illustrated by Keith Brockie.
Red Data Birds In Britain
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Author : L.A Batten
language : en
Publisher: A&C Black
Release Date : 2013-06-27
Red Data Birds In Britain written by L.A Batten and has been published by A&C Black this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-27 with Nature categories.
The various Red Data Books prepared by the IUCN and ICBP have set the standards for recognizing birds close to or at risk of extinction worldwide. This book, by focusing on vulnerable species living in or visiting Britain, sets out to define the British situation and to clearly establish both the importance of British populations and our own responsibilities for contributing to bird conservation. Compiled by an editorial team drawn from the Nature Conservancy Council and the Royal Society for the Protection of Birds, it identifies 117 species that demand our care and attention. It includes species that breed in or visit Britain in small numbers and whose populations are threatened by natural or man-made circumstances. It also deals with birds that are common or numerous but which, due to their localized distribution worldwide, have the greater part of their European populations in British sites. Each of the species accounts provides up-to-date information on current populations, basic ecology, threats to the species and the legal protection and conservation measures now in force. General chapters deal with the state of Britain's various habitats, legal matters and conservation action for the future. This book should mean that no-one, whether ornithologist, land manager or bureaucrat, can plead ignorance when future land-use changes or management decisions threaten an endangered, vulnerable or important bird species. Illustrated by Ian Willis.