Ding Wei, Zhao Zhimo, Wang Jinjun, Chen Guihong
College of Plant Protection, Southwest Agricultural University, Chongqing 400716, China.
Ying Yong Sheng Tai Xue Bao. 2003 Sep;14(9):1481-4.
Systematic analysis of aphid populations and niches patterns on spring sowing maize was carried out during 1998-1999 in the suburbs of Chongqing. The results indicated that there were three aphid populations Rhopalosiphum maidis Fitch., Rhopalosiphum padi Linn. and Sitobion avenae Fabricius distributed on the spring sowing maize. The mixed aphid populations traded off during the growth period of spring sowing maize, and two peaks of quantitative counts were shown at the mid and last ten days of May and the last ten days of June. In addition, the niches of aphid population were also discussed from one dimension (i.e., temporal or spatial) to two dimensions (i.e., temporal and spatial). Through the quantitative analysis of niche breadth and niche overlap, the highly temporal differentiation of M. avenae and the highly gathering character of R. maidis were all indicated. R. padi showed an indistinct differentiation, while R. maidi was a dominated population on the spring sowing maize.
1998 - 1999年期间，对重庆郊区春播玉米上的蚜虫种群和生态位格局进行了系统分析。结果表明，春播玉米上分布有3种种群的蚜虫，即玉米缢管蚜（Rhopalosiphum maidis Fitch.）、禾谷缢管蚜（Rhopalosiphum padi Linn.）和麦长管蚜（Sitobion avenae Fabricius）。混合蚜虫种群在春播玉米生长期间交替出现，在5月中旬和下旬以及6月下旬出现了两个数量高峰。此外，还从一维（即时间或空间）到二维（即时间和空间）对蚜虫种群的生态位进行了讨论。通过对生态位宽度和生态位重叠的定量分析，表明麦长管蚜具有高度的时间分化，玉米缢管蚜具有高度的聚集特征。禾谷缢管蚜的分化不明显，而玉米缢管蚜是春播玉米上的优势种群。
