G r dick potts (10 risultati)

Paperback. Condizione: Very Good. The aim of this book is to achieve a better understanding of partridge ecology, and thereby to promote methods of conservation which could arrest the enormous tide of decline with regard to this species. Until the 1960s the partridge was a very common bird in many countries - each Autumn there was a total of over 120 million, almost all of which were to be found on farmland. In this book the reasons for the decline are examined in detail and the major cause is found to be pesticides, in particular the use of herbicides and insecticides which has reduced the supply of insect food available for the partridge chicks. Methods of restricting pesticide use dealt with in the book give a clear prospect of more partridges, more wildlife, little hindrance to farmers in the short term and additional benefits to the environment in the long term. Of interest to ecologists, game conservationists and naturalists, the book is also of interest to those engaged in agricultural practices and to countryside environmental officers. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.…

Hardcover. Condizione: Very Good. Condizione sovraccoperta: Good. Collins, 2012. Hardback, d/j, 8vo, xi,465pp, illust. A good copy. 9780007418701/ . (Please note that our condition gradings are stricter than those of Abebooks and many other sellers. There may therefore be a discrepancy between this description and its listed condition grading).…

Hardcover. Condizione: Fine. Condizione sovraccoperta: Fine. Collins, 2012. Hardback, d/j, 8vo, xi,465pp, illust. A fine copy. 9780007418701/1.2uk . (Please note that our condition gradings are stricter than those of Abebooks and many other sellers. There may therefore be a discrepancy between this description and its listed condition grading.).…

Hardcover. Condizione: Fine. Condizione sovraccoperta: Near Fine. 1st Edition. 2012, 1st edition. Octavo. 465pp. Illustrated. Publisher's cloth, binding square and tight. Book clean and bright. In the printed dust jacket, design by Robert Gillmor. Price intact. A hint of shelf-wear. Overall a 'Fine' copy. …

Soft cover. Condizione: New. 1st Edition. This mint unread copy is bound in illustrated card covers as issued. The text block is tight white, bright and square. International postal rates are calculated on a book weighing 1 Kilo, in cases where the book weighs less then postage will be reduced accordingly. Where the book weighs more than 1 Kilo increased charges will be quoted, where the book weighs less then postage will be reduced accordingly. Globally, there are at least 45 species of game bird that have the word partridge in their name, but in this book G. R. Potts devotes himself to the Grey, Red-legged and Chukar Partridges, with particular emphasis on the Grey Partridge due to its well-known decline in Britain. In this groundbreaking addition to the New Naturalist series, Potts explores how mankind and partridges have evolved together, both ultimately dependent on grasslands rather than forests. For thousands of years, both ate grass seeds and this continued until cereals largely replaced them. Hundreds of species of plant and insect that partridges and other birds eat thrived on farms for thousands of years until the dawn of the pesticides era. Since then the long decline in partridge abundance has been a barometer for biodiversity over vast swathes of the Northern Hemisphere. Highlighting the positive example of the Norfolk Estate in the Sussex Study area, Potts investigates how both Grey and Red-legged Partridge numbers have been increased, flourishing in a highly productive and profitable system of farming and an oasis in what has often looked and sounded like a desert. In a small corner of England farmland wildlife is able to thrive much as it did before pesticides were introduced. This is a complex and fascinating story, with a heady mix of hunting, farming, predation, parasites, disease and climate change. The way these factors have interacted tells us a lot about how lesser known species have fared and how they can be conserved for the future. Potts stresses the importance of these conservation efforts, as farmers respond to the needs of an extra three billion people worldwide, not just for food but for bio-fuels. Additionally, the pressures on farmland wildlife will further intensify in the coming years. Ref LLL 4.…

Cloth. Condizione: As New. Condizione sovraccoperta: As New. Partridges are said to important indicator species. Another excellent New Naturalist volume. pp.xi.465. Illus. Still in plastic shrink wrapping.

Cloth. Condizione: As New. Condizione sovraccoperta: As New. Excellent scholarship; Partridges are said to beimportant indicator species. Another excellent New Naturalist volume. pp.xi.465. Illus. New in plastic shrink wrapping.

Hardcover. Condizione: Brand New. 480 pages. 8.82x6.30x1.42 inches. In Stock.

Hardcover. Condizione: As New. Condizione sovraccoperta: As New. First Edition. A fine limited edition copy signed by the author to a plate tipped in to the front free end paper, this is one of limited edition of 50 issues with a dust jacket signed by Robert Gilmore. Full leather binding, gilt stamped lettering to the spine, blind stamped NN monogram to the front board; all edges gilt. Brown cloth covered slipcase. Colour plates and diagrams throughout. A new limited edition copy signed by the author. [Collecting the New Naturalists NNL121A] Size: 8vo. Book.…

HarperCollins. London. 2012. First edition. DW. Illustrated throughout. A lovely clean and fresh copy in wrapper.