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Hickey, Joseph J., Ed. (Daniel Anderson, Clayton White, Frank Beebe, Morlan Nelson, James Enderson, Richard Banks, Richard Fyfe, Joseph Hagar, James Rice, Horst Schroder, Jean-Francois Terrasse, Hans Herren, Ian Prestt, Tom Cade, Walter Spofford, E Listings

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1 Hickey, Joseph J., ed. (Daniel Anderson, Clayton White, Frank Beebe, Morlan Nelson, James Enderson, Richard Banks, Richard Fyfe, Joseph Hagar, James Rice, Horst Schroder, Jean-Francois Terrasse, Hans Herren, Ian Prestt, Tom Cade, Walter Spofford, e PEREGRINE FALCON POPULATIONS: THEIR BIOLOGY AND DECLINE.
University of Wisconsin Press, Madison, 1969. 
596 pp, large 8vo (9 3/4" H), hard cover in dust jacket. B&w tables, graphs, maps, photographs. "(D)escribes a contemporary ecological disaster and the search to explain it. Its extensive analysis offers, on the one hand, an unusual landmark in p opulation biology and, on the other, perhaps the requiem of a species. Once the prized favorite of medieval falconers, the cosmopolitan peregrine falcon was, until quite recently, a remarkably successful example of avian evolution. By the earl y 1 9 60's, however, peregrine populations were catastrophically declining on two continents. Other raptors were mysteriously and rapidly decreasing too. In an effort to establish the cause or causes of these unprecedented events, an internationa l c on fe rence of scientists, naturalists, and conservationists was convened at the University of Wisconsin in 1965. (This book) summarizes the proceedings of this conference and the enormous pool of unpublished population data that these investig at or s b rou ght together. (It) examines a wide variety of adverse factors - diseases, parasites, and human harassment - and reaches the conclusion that the concentration of chlorinated hydrocarbons by bird- and fish-eating raptors is the only hyp oth esi s th at c an adequately explain the simultaneous populations failures of so many species on both sides of the Atlantic Ocean. A concluding chapter in the book briefly describes the research gaps that ecologists promptly closed after the con clus ion of th e con ference: insecticides were found in high levels in surviving peregrines in Alaska and the Canadian Arctic. A dramatic change in eggshell thickness was found to have overtaken various species of raptors in Britain, California, a nd Ma ssac husett s in 1 947. And chlorinated hydrocarbon residue levels in eggs were shown to be inversely correlated with eggshell thickness. The increasing production of persisting insecticides now appers to be a threat to the world's biota on a much wide r scale than t he one described in this book. The arguments and the data here presented will be of great interest to scientists, conservationists, naturalists, and laymen concerned with the pollution of our environment and with the su btle de layed effects that mod ern chemicals have on our wildlife resources." Previous owner's name stamp on free front endpaper, bottom edge and fore-edge of text block, slight shelf soiling on bottom of text block, two small areas of light soilin g on top of te xt block , light e dge wear, light wrinkling at top/bottom of spine. Dust jacket has light edge wrinkling/wear, several small closed tears - some with creases, a few tiny chips, light soiling and rubbing, small closed puncture on re ar hinge - archi vally tap ed. Very Good/Good+ 
Price: 70.00 USD
 
 

 


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