Collins New Naturalist
3 primary works • 5 total works
Book 113
The book is divided into four main sections: the first is introductory, describing the different types of bird movements, methods of study, and the main migration patterns seen around the British Isles; the second part is concerned mainly with the process of migration -- with timing, energy needs, weather effects and navigation; the third with evolution and change in migratory behaviour; and the fourth with the geographical and ecological aspects of bird movements.
Book 124
In the latest addition to the New Naturalist series, Ian Newton explores bird populations and what causes their fluctuation – food supplies, competitors, predators, parasites, pathogens and human activity.
The combination of a rapidly expanding human population, a predominantly utilitarian attitude to land, central government policy on land use and increasing mechanisation have combined to promote massive changes in land use in recent decades than at any previous comparable period. These developments have in turn brought huge changes in bird habitats and populations; some species dependent on the old landscapes declined, while others have increased. Over the same period, changing public attitudes to wildlife allowed previously scarce bird species to recover from past onslaughts, while climate warming has promoted further changes.
In this seminal new work, Ian Newton sets out to explain why different bird species are distributed as they are, and changed over the years in the way that they have. The regular watching and study of birds now provides a source of recreation and pleasure for very large numbers of people, while continued monitoring of bird numbers can also alert us to impending environmental problems. For all of us, a world with fewer birds would be a poorer place.
Book 135
Given the underlying topography, the scenery over most of Britain has been created largely by human activities. Over the centuries, landscapes have been continually modified as human needs and desires have changed.
Each major change in land use has brought changes to the native plants and animals, continually altering the distribution and abundance of species. This is apparent from the changes in vegetation and animal populations that were documented in historical times, but even more so in those that have occurred since the Second World War.
More than seventy per cent of Britain’s land surface is currently used for crop or livestock production, and in recent decades farming has experienced a major revolution. Not only has it become more thoroughly mechanised, it has also become heavily dependent on synthetic fertilisers and pesticides, and increasingly large-scale in its operation. These changes have brought crop yields and livestock production to levels previously considered unattainable. However, such high yields have been achieved only at huge financial and environmental costs. One of the most conspicuous, and best documented, consequences of modern agriculture has been a massive loss of wildlife, including birds.
In this timely addition to the New Naturalist Library, Ian Newton discusses the changes that have occurred in British agriculture over the past seventy years, and the effects they have had on bird populations. He explains how different farming procedures have affected birds and other wildlife, and how an understanding of the processes involved could help in future conservation.
Ian Newton, author of Farming and Birds and Bird Migration returns to the New Naturalist series with a long awaited look at the uplands and its birds.
The uplands of Britain are unique landscapes created by grazing animals, primarily livestock. The soils and blanket bogs of the uplands are also the largest stores of carbon in the UK, and 70% of the country's drinking water comes from the uplands. It's a significant region, not least to the multitudes of bird species that hunt, forage and nest there.
Once again, Ian Newton demonstrates his mastery of the subject matter at hand, in this beautifully illustrated, authoritative addition to the New Naturalist series.
This illustrated survey of finch behaviour is a thorough, non-technical account of the habits of these birds throughout the world.
Greenfinches nest in plantations, large shrubby gardens and churchyards with lots of evergreens, thickets and tall hedges. After breeding, goldfinches forage on waste land, overgrown rubbish dumps, neglected allotments of food, and rough pastures. Bullfinches, in their breeding season, develop in the floor of their mouths special pouches in which food for the young is retained. These pouches open, one on each side of the tongue and, when full, extend back under the jaws as far as the neck, when they together hold about one cubic centimetre of food. Cocks of the Chaffinch and Brambling species sing in the breeding season to repel other cocks and attract hens.
This illustrated survey of finch behaviour is a thorough, non-technical account of the habits of these birds throughout the world. Dr. Newton uses his extensive bird-watching experience and knowledge of the published literature to document the main patterns of feeding, development of feathers, breeding, and migration. As a result, he presents the changing relationship of the birds to their environment.
The author is on the staff of the Nature Conservancy at Edinburgh, Scotland. His several scientific papers on finches have appeared in Birds, Journal of Animal Ecology and other scholarly periodicals.