منابع مشابه
Exposure of garden birds to aflatoxins in Britain.
Aflatoxins are potent biological toxins that have been shown to exert a range of acute and chronic pathological effects. Multiple mortality events of waterfowl caused by acute aflatoxicosis have been documented in the USA. However, international concern has recently been expressed regarding the potential effects of chronic exposure of wildlife species to low levels of dietary aflatoxin. This st...
متن کاملColour preferences of UK garden birds at supplementary seed feeders
Supplementary feeding of garden birds generally has benefits for both bird populations and human wellbeing. Birds have excellent colour vision, and show preferences for food items of particular colours, but research into colour preferences associated with artificial feeders is limited to hummingbirds. Here, we investigated the colour preferences of common UK garden birds foraging at seed-dispen...
متن کاملEpidemiological Evidence That Garden Birds Are a Source of Human Salmonellosis in England and Wales
The importance of wild bird populations as a reservoir of zoonotic pathogens is well established. Salmonellosis is a frequently diagnosed infectious cause of mortality of garden birds in England and Wales, predominantly caused by Salmonella enterica subspecies enterica serovar Typhimurium definitive phage types 40, 56(v) and 160. In Britain, these phage types are considered highly host-adapted ...
متن کاملSalmonella infections in garden birds and cats in a domestic environment.
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متن کاملFrequency and types of tumors in mammals and birds of the Philadelphia Zoological Garden.
The post mortem records of the Philadelphia Zoological Garden are continuous since 1901. Reviews of these records for each decade through 1931 have shown that the frequency and types of malignant tumors did not change appreciably during this period (7, 8, 17). The frequency for all taxonomic groups was generally proportional to longevity, which often had been limited by nutritional disease. The...
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ژورنال
عنوان ژورنال: Nature
سال: 1945
ISSN: 0028-0836,1476-4687
DOI: 10.1038/156034c0