Tetrad Atlas of the Breeding Birds of Devon PDF Download

Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 344

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Author: J.T.R. Sharrock
Publisher: A&C Black
ISBN: 1408146967
Category : Nature
Languages : en
Pages : 928

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The Atlas plots the results of the survey organised by the BTO and the IWC during the years 1968-72. Over 250 maps show the distribution of 218 species. This companion volume to The Atlas of Wintering Birds in Britain and Ireland 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. Jacket design by Robert Gillmor.

Author: Simon Holloway
Publisher: A&C Black
ISBN: 1408128667
Category : Nature
Languages : en
Pages : 867

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The landscape of Britain has been irreversibly changed over the last century. Modern agriculture, urban expansion, industry and transport have all left their mark, altering the face of the countryside forever. Shifting with the changing scene, the fortunes of Britain and Ireland's bird populations have fluctuated dramatically over the years. As current farming practices have evolved, the natural habitats and breeding patterns of many species have been disrupted. Urban and industrial growth has brought with it the pressures of new land use, pesticides, pollution and human interference. The activities of sportsmen, collectors and farmers have also taken their toll over the years. The new Poyser title The Historical Atlas of Breeding Birds in Britain and Ireland 1875-1900 is a fascinating book resulting form years of meticulous research by the author, Simon Holloway, who provides an absorbing account of the distribution changes of Britain and Ireland's birds over the last quarter of a century. Large colour distribution maps and their accompanying text paint a species-by-species picture of a period which completely transformed the landscape of this country. It is, says Natural World magazine, "a classic case of 'why did no one write this book before?'...The experienced birder, using a knowledge of species requirements, can only marvel at what the long-vanished landscapes were then like." Birdwatch praises Simon Holloway's achievement, saying: "This book brings together so much information from disparate sources, and its status maps present such a clear picture of our late Victorian avifauna, that it should take its place beside the BTO atlases on the bookshelf." While Birdwatching adds: "If you are interested in the historical side of birds and their populations this book will be an endless source of fascination." As with all Poyser publications, the attention to detail, the lovingly produced illustrations and the sheer breadth of knowledge demonstrated by the autho

Author: Robin W. Woods
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 200

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In 1983 a survey of the breeding birds of the Falkland Islands was carried out and continued for the subsequent 10 breeding seasons. This work, based on the findings, shows that some species are found throughout the islands while others have a restricted distribution. Population estimates have been calculated and the distribution of most species is related to the main topographical features of the Falklands archipelago. The overall survey results and notes on habitat and breeding behaviour are compared with historical records since colonization began in 1764.

Author: Andy Brown
Publisher: A&C Black
ISBN: 140813327X
Category : Nature
Languages : en
Pages : 1370

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The Poyser avifaunas Birds in Scotland, Birds in Ireland and Birds in Wales are all now regarded as classic works. The series is now completed with Birds in England, an avifauna for England's diverse birdlife, past and present. England marks the northwestern limit for many Palearctic breeding birds, and is close to the southwestern limit for several others - in particular, several seabird species whose English colonies are of international significance. It is the first point of arrival for new colonists from the south - Little Egret and Yellow-legged Gull are two recent arrivals - and it is also of international importance for wintering and passage populations of various species which breed in the far north of the Palearctic. A diverse and fascinating avifauna is augmented by visits from an impressive range of rarities from as far afield as Siberia and Canada - Nearctic vagrants in particular are well-represented on the English list. This important new avifauna looks in detail at England and its birds, analysing present and historical data to present a complete picture of the status, range and abundance of every bird on the English list.

Author: Colin J. Bibby
Publisher: Academic Press
ISBN: 0080984509
Category : Science
Languages : en
Pages : 276

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Wild birds are counted for a wide variety of reasons and by a bewildering array of methods. However, detailed descriptions of the techniques used and the rationale adopted are scattered in the literature, and the newcomer to bird census work or the experienced bird counter in search of a wider view, may well have difficulty in coming to grips with the subject as a whole. While not an end in itself, numerical and distributional census work is a fundamental part of many scientific and conservation studies, and one in which the application of given standards is vital if results are not to be distorted or applied in a misleading way.This book provides a concise guide to the various census techniques and to the opportunities and pitfalls which each entails. The common methods are described in detail, and illustrated through an abundance of diagrams showing examples of actual and theoretical census studies. Anyone with a bird census job to plan should be able to select the method best suited to the study at hand, and to apply it to best effect within the limits inherent in it and the constraints of the particular study.The Royal Society for the Protection of Birds and the British Trust for Ornithology have for many years pioneered the collaboration of amateurs and professionals in various census studies. Three members of their staff, each with extensive field experience, now pool the knowledge of these investigations to lay the groundwork for sound census work in future years.

Author: Tim Dean
Publisher:
ISBN: 9780955740664
Category : Bird populations
Languages : en
Pages : 0

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Author: Raymond J. O'Connor
Publisher: CUP Archive
ISBN: 9780521389730
Category : Science
Languages : en
Pages : 308

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This attractively illustrated book reviews the effects of agricultural development on bird populations in Britain. Examining modern farmland as a bird habitat, it explains the changes, both in habitat structure and in available resources, that have occurred as a result of mechanisation and use of agrochemicals. Farmland bird communities are described, and their composition related to farm structure and land use. Based extensively on empirical data extracted from the British Trust for Ornithology's Common Bird Census and from nest histories recorded in the BTO'S Nest Record Scheme, the book presents an important analysis of the position of agricultural bird populations under modern farming systems. Particular examination has been made of the impact of changing methods, rotations and crops, which have been underestimated in the past. Resulting from the co-operation between a professional ornithologist and a working cereal farmer, this book provides an objective and informed view of the impact of British agriculture on bird populations.

Author: Peter Lack
Publisher: A&C Black
ISBN: 1408138271
Category : Nature
Languages : en
Pages : 448

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This companion volume to The Atlas of Breeding Birds of Britain and Ireland is derived from surveys of birds present in Britain and Ireland during the three winters, 1981/82, 1982/83 and 1983/84. The surveys were organised by the British Trust for Ornithology and the Irish Wildbird Conservancy, as were the earlier breeding birds surveys. The Winter Atlas maps 200 species, 192 of which have full-page two-colour maps faced by a page of text. The texts (written by over 100 specialists) comment on the survey results, the species generally and the distribution and abundance as mapped. In addition there are introductory chapters on the maps, the weather in the three winters, bird patterns and movements; and appendices describing the planning, organisation, field methods, and processing of the survey data from record cards to computer output and maps. A team of 23 artists, led by Robert Gillmor, has provided the line drawings which head the species accounts.

Author: Mark Avery
Publisher: A&C Black
ISBN: 1408137674
Category : Nature
Languages : en
Pages : 537

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In this book, an ornithologist and a forester have combined their skills to try and tease out the real facts behind the various arguments on forestry. The conflict between forestry and nature conservation has become a major environmental issue in Britain in the 1980s. The planting of large tracts of land with exotic conifers and the resulting disturbance of existing plant and animal communities has polarized the debate, each camp believing that it has the most rational view. But the interactions involved are complex. Which bird species are really threatened? How can we judge the relative value of bird species ousted by plantations and the new species which colonize them? How can the need for forest products be reconciled with the demands of conservationists? This fascinating book tackles these issues in a forthright manner. It represents a significant step towards achieving the sort of prudent land planning that will really improve our beleaguered countryside. Jacket painting by Philip Snow. Foreword by David Bellamy.