Braack L E, De Vos V
Research Department, National Parks Board, Skukuza.
Onderstepoort J Vet Res. 1990 Jun;57(2):141-2.
Carrion-frequenting blow-flies (Chrysomyia albiceps and C. marginalis) were allowed 4 days of feeding on 32P-orthophosphate-labelled blood or an impala carcass (Aepyceros melampus) in the northern Kruger National Park, South Africa. The dispersal and density of fly faecal and discard droplets were then established using a Geiger-Counter, indicating that most droplets occurred between a height of 1 and 3 m on nearby leaves and twigs. This coincides with the preferred feeding height of kudu (Tragelaphus strepsiceros). During a previous anthrax epizootic kudu comprised 73.15% of a total medium to large mammal mortality figure of 1054. Further analysis of mortality shows browsers to have been most severely affected, and it is suggested that this is correlated with feeding habits of these animals. Trapping also yielded radioactively labelled C. albiceps up to 32.5 km and C. marginalis up to 25 km from the isotope source.
以腐肉为食的丽蝇（白头金蝇和边缘金蝇）在南非克鲁格国家公园北部被允许以含32P-正磷酸盐标记的血液或黑斑羚尸体（黑斑羚）为食4天。然后使用盖革计数器确定蝇类粪便和丢弃液滴的扩散和密度，结果表明大多数液滴出现在附近树叶和嫩枝1至3米的高度。这与捻角羚（大羚羊）的偏好取食高度一致。在之前的炭疽病流行期间，捻角羚占1054头中大型哺乳动物死亡总数的73.15%。对死亡率的进一步分析表明，食草动物受影响最为严重，据推测这与这些动物的取食习性有关。诱捕还在距离同位素源32.5公里处捕获到放射性标记的白头金蝇，在25公里处捕获到边缘金蝇。
