Longcore J R (10 results)

Paperback. Condition: New. Species account number 481 in the Birds of North America Life Histories for the 21st Century series. In 1992 the American Ornithologists' Union in partnership with the Academy of Natural Sciences of Philadelphia undertook the publication of species accounts for each of the more than 700 species which breed in the United States and Canada. These illustrated reviews provide comprehensive summaries of the current knowledge of the species, with range maps and an extensive list of references. The series is finally complete, in 716 parts. Accounts are 8 ½ x 11 booklets.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condition: New. Print on Demand. This book by the author delves into the detrimental effects of lead shot ingestion on waterfowl and the search for nontoxic alternatives. Since the 1950s, the author meticulously evaluates various proposed substitute shot materials. The book is a significant contribution to the ongoing effort to mitigate lead poisoning in waterfowl. It provides a comprehensive analysis of substitute shot types and their potential impact on duck populations. The study's methodology, which involved controlled toxicity tests with pen-reared mallards, ensures the reliability of the findings. The results highlight the challenges in developing a suitable lead substitute that effectively prevents lead poisoning while maintaining ballistic properties similar to traditional lead shot. It sheds light on the factors influencing shot erosion and retention, including the presence and type of grit in the gizzard. The book also explores the differential susceptibility of various waterfowl species and age groups to lead poisoning, providing valuable insights into the dynamics of lead exposure in the wild. The findings emphasize the importance of considering species-specific vulnerabilities when implementing lead poisoning mitigation strategies. By combining scientific rigor with practical implications, this book significantly advances our understanding of lead poisoning in waterfowl and offers valuable guidance for future research and conservation efforts. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condition: New. Print on Demand. This book explores the significance of lead residue in mallard duck tissues following ingestion of lead pellets in hunting areas. The author thoroughly examines the impact of lead on various tissues including the brain, tibia, liver, kidney, pancreas, heart, breast muscle, and blood. By comparing lead concentrations in deceased ducks to those sacrificed for observation, the study establishes diagnostic criteria to determine acute lead poisoning in mallards. By analyzing lead levels in relation to survival time, the author uncovers patterns that shed light on lead absorption, storage, and excretion in these birds. This detailed investigation provides valuable insights for researchers, wildlife managers, and conservationists working to mitigate lead poisoning in waterfowl populations and protect the ecosystems they inhabit. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Gebunden. Condition: New. KlappentextrnrnExcerpt from Significance of Lead Residues in Mallard Tissues, 1974One hundred 4 - month-old drake mallards were force-fed one number 4 size lead buckshot (about g) which had been preweighed to the nearest g. All birds wer.

LeatherBound. Condition: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. LeatherBound edition. Condition: New. Reprinted from 1974 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Pages: 38 NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 38.

LeatherBound. Condition: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. LeatherBound edition. Condition: New. Reprinted from 1974 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Pages: 38 NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 38.