南喀麦隆雨林中斑蝗的形态、发育和繁殖(直翅目:蝗科)

IF 1 Q3 ENTOMOLOGY
Alfiery Laurel Djomnang Nkwala, Franklin Simo Talla, C. O. Ngoute, S. Kekeunou, Alain Christel Wandji, Marcelle Mbajoun Nzike, Alain Simeu Noutchom, M. Mbida
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引用次数: 2

摘要

蝗虫是热带非洲开阔环境和农业系统中非常常见的一种蝗虫。喀麦隆南部森林退化对这种害虫大有好处,因此有必要研究这一亚种的生物生态学。本研究研究了白绒螯虾胚胎后期的生殖、形态特征和发育时间。从Nkolbisson地区(yound)草地上捕获的六龄若虫中获得61对成虫,并在实验室进行繁殖。孵化后,将一龄若虫单独放入笼中,每隔两天用新鲜的马尼奥特叶饲喂一次。e.p. bandana的胚胎后发育为雄性6龄,雌性6 ~ 7龄。雄虫稚虫的平均发育时间为79.16±0.51 d,雌虫6龄为89.93±0.58 d,雌虫7龄为94.96±1.22 d。1龄成活率低(53%)。然而,从二龄开始,成活率非常高(> 87%)。两性二态性在成虫、第五和第六若虫中是明显的。成虫交配时间平均为32.57±3.88 d,交配时间平均为2.12 h (1 ~ 3 h),初次交配后平均为52.03±5 d产卵;每只雌虫产卵1 ~ 11枚,平均每卵34.93±2.37枚。本研究为喀麦隆南部地区控制该亚种提供了重要信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morphology, development, and reproduction of Eyprepocnemis plorans ibandana (Orthoptera: Acrididae) in South Cameroon rainforests
Eyprepocnemis plorans ibandana is a very common grasshopper species in open environments and agricultural systems of tropical Africa. It is a pest that significantly benefits from forest degradation in southern Cameroon, hence the need to study the bioecology of this subspecies. We studied the reproduction as well as the morphological characteristics and development times of the post-embryonic instars of E. p. ibandana. Sixty-one adult pairs were obtained from sixth instar nymphs caught in grassy vegetation in the Nkolbisson area (Yaoundé) and bred in the laboratory. After hatching, the first instar nymphs were individually placed in cages and fed every two days using fresh leaves of Manihot esculenta. The postembryonic development of E. p. ibandana took six instars in the male and six to seven instars in the female. Mean nymphal development took 79.16 ± 0.51 days in males, 89.93 ± 0.58 days in 6 instar females and 94.96 ± 1.22 days in 7 instar females. The survival rate of the first instar was low (53%). However, from the second instar on the survival rate was very high (> 87%). Sexual dimorphism is distinct in adults, fifth and sixth nymphal instars. Adults of E. p. ibandana took on average 32.57 ± 3.88 days to start mating, and mating lasted 2.12 h on average (1–3 h). Oviposition took place on average 52.03 ± 5 days after first mating; each female deposited one to eleven oothecae with an average of 34.93 ± 2.37 eggs per ootheca. Our study provides important information for the control of this subspecies in southern Cameroon.
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来源期刊
Journal of Orthoptera Research
Journal of Orthoptera Research Agricultural and Biological Sciences-Insect Science
CiteScore
1.90
自引率
25.00%
发文量
20
审稿时长
12 weeks
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