Elytral color dimorphism in rice water weevil (Coleoptera: Curculionidae):: Occurrence in spring populations and relationship to female reproductive development

被引:0
作者
Jiang, Ming-Xing
Way, M. O.
Yoder, R.
Zhang, Wen-Jun
Cheng, Jia-An
机构
[1] Texas A&M Univ, Ctr Agr Res & Extens, Beaumont, TX 77713 USA
[2] Zhejiang Univ, Inst Insect Sci, Hangzhou 310029, Peoples R China
[3] Lamar Univ, Dept Biol, Beaumont, TX 77710 USA
关键词
color dimorphism; elytra; Lissorhoptrus oryzophilus; ovarian development; mating;
D O I
10.1603/0013-8746(2006)99[1127:ECDIRW]2.0.CO;2
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Adults of the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), were collected from three sources: 1) overwintering sites near rice, Oryza sativa L.; 2) a light trap placed in grassy vegetation and fallow fields; and 3) flooded rice plots near Beaumont, TX, from mid-April to late May 2005. Their color morph and reproductive status were surveyed. Frequency of the dark morph (36.0,45.8, and 31.6% at each collection source, respectively) was significantly lower than that of the light morph (64.0, 54.2, and 68.4% respectively). Dark males accounted for only 3.5-7.4% of the populations, significantly less abundant than light males (28.8-32.0%) in each collection source. The morph frequency changed significantly with season in females, but not in males. Female-biased sex ratios were observed with the proportion of females to males being 1.5,2.1, and 1.9 at each collection source, respectively. In most collections, ovarian development and mating status were similar between the females of different morphs, suggesting that elytral morph in this weevil might not be related to female reproductive development.
引用
收藏
页码:1127 / 1132
页数:6
相关论文
共 23 条
  • [1] Bernstein R, 1996, COLEOPTS BULL, V50, P297
  • [2] BRAKEFIELD PM, 1985, HEREDITY, V4, P9
  • [3] Rice water weevil (Coleoptera: Curculionidae) in mainland China:: Invasion, spread and control
    Chen, H
    Chen, ZM
    Zhou, YS
    [J]. CROP PROTECTION, 2005, 24 (08) : 695 - 702
  • [4] EVERETT TRAVIS R., 1964, ANN ENTOMOL SOC AMER, V57, P514, DOI 10.1093/aesa/57.4.514
  • [5] Goh H. G., 1993, ESTABLISHMENT SPREAD, P133
  • [6] Hanatula J., 1987, Journal of Agriculture of the University of Puerto Rico, V71, P391
  • [7] HONEK A, 1995, EUR J ENTOMOL, V92, P437
  • [8] Iwata T., 1976, International Rice Research Newsletter, V1, P17
  • [9] Kawamura Kiyohisa, 2005, Memoirs of the Faculty of Agriculture of Kinki University, V38, P1
  • [10] Lalitha N., 2000, Insect Environment, V6, P6