Upland Game-Birds
نویسندگان
چکیده
منابع مشابه
Lead pellet ingestion and liver-lead concentrations in upland game birds from southern Ontario, Canada.
One-hundred twenty-three gizzards from upland game birds (chukar, Alectoris chukar; and common pheasant, Phasianus colchicus) harvested by hunters in southern Ontario, Canada, were examined for lead pellet ingestion by manual examination of gizzard contents and by radiography. Lead pellets were found to be ingested by chukars (6/76; 8%) and the common pheasant (16/47; 34%). Further, 13% (17/129...
متن کاملAn Ecological Risk Assessment of Lead Shot Exposure in Non-waterfowl Avian Species: Upland Game Birds and Raptors
There is increasing concern that birds in terrestrial ecosystems may be exposed to spent lead shot. Evidence exists that upland birds, particularly mourning doves (Zenaida macroura), ingest spent lead shot and that raptors ingest lead shot by consuming wounded game. Mortality, neurological dysfunction, immune suppression, and reproductive impairment are documented effects of exposure to lead in...
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DESTRUCTION of the natural environment of upland game birds and ever-increasing pressure for more birds for hunting have led to attempts by conservationists to utilize artificially propagated birds for restocking. Sportsmen and others concerned with the artificial or controlled production of these birds have learned through costly experience that losses from pathological factors are often treme...
متن کاملAssessing Local and Landscape Constraints on Habitat Management for Grassland and Upland Birds
....................................................................................................................... II DEDICATION .................................................................................................................. IV ACKNOWLEDGEMENTS ............................................................................................... V TABLE OF CONTENTS ...............
متن کاملWhat happens to translocated game birds that ‘disappear’?
The ultimate goal of most translocation efforts is to create a self-sustaining wild population of a species deliberately moved from one part of their range to another. As follow-up of a translocation attempt is often difficult, causes for failure are relatively unknown. Dispersal away from the release site is one potential source of failure because it decreases the likelihood of the released po...
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ژورنال
عنوان ژورنال: Nature
سال: 1902
ISSN: 0028-0836,1476-4687
DOI: 10.1038/066652b0