Gupta Nidhi, Kumar Sandeep, Saxena Arun Kumar
Department of Zoology, Government Raza Postgraduate College, Rampur, India.
Zoolog Sci. 2007 Apr;24(4):381-3. doi: 10.2108/zsj.24.000.
Prevalences of two phthirapteran species (an ischnoceran, Brueelia amandavae, and an amblyceran, Myrsidea amandava) on 130 Red Avadavats (Amandava amandava) were 36.2 and 20.8% in the district of Rampur, India, from September to December 2004. Sample mean abundances of the two species were 3.43 and 1.53, respectively. The frequency distribution patterns of both species were aggregated. The observed distribution conformed to the expected distribution of the negative binomial model, but only in the case of M. amandava. Adults dominated over nymphs in the overall adult-to-nymph ratio. Sex ratios of both species were skewed (female biased).
2004年9月至12月，在印度兰普尔地区，对130只红梅花雀（Amandava amandava）身上的两种羽虱（一种是啮喙亚目虱，即布氏梅花雀虱，另一种是吸喙亚目虱，即梅花雀吸虱）的患病率进行了调查，结果分别为36.2%和20.8%。这两种羽虱的样本平均丰度分别为3.43和1.53。两种羽虱的频率分布模式均呈聚集型。观察到的分布符合负二项式模型的预期分布，但仅在梅花雀吸虱的情况下如此。在总体成虫与若虫比例中，成虫占主导地位。两种羽虱的性别比例均不均衡（偏向雌性）。
