突尼斯扎霍安地区麦田里的瓢虫

IF 0.8 4区 生物学 Q3 ZOOLOGY
C. Lahfef, M. Elimem, Wala Sassi, E. Limem-Sellemi, Mohammad M. M. Bedewy, K. Lebdi‐Grissa
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引用次数: 0

摘要

对扎后湾稻田中的瓢虫进行了为期三年的调查,以评估它们的季节性出现及其减少蚜虫种群的效率。仅鉴定出两个物种,即algerica Coccinella和Hippodamia variegatia。莫格兰代表团的瓢虫数量最多(64%)。作为相关性分析的主要结果,瓢虫与温度之间的关系很强,尤其是在2018年和2019年。不同年份和季节的形态频率不同,个体数量随着蚜虫数量的增加而更加可观,尤其是在春季(4月和5月)。这与田地里杂草的生长不谋而合。H.斑叶虫有十八种不同的形态。根据形态学标准,最常见的变形有9个斑点。比较形态学标准和生殖器,发现性别倒置,男性达到16.67%,女性达到2.13%。推测化学物质的使用和温度是诱发斑节藻多态性和性反转的主要因素。化学品的有限使用增加了瓢虫在莫格兰地区田地里的存在。关键词:天敌,瓢虫,谷类,海波达美,仙人掌。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
LADYBIRDS IN CEREAL FIELDS IN THE REGION OF ZAGHOUAN IN TUNISIA
An inventory of ladybirds was carried out in cereal fields in Zaghouan over three years to evaluate their seasonal apparition and their efficiency in decreasing aphid populations. Only two species, Coccinella algerica and Hippodamia variegata were identified. The delegation of Mograne was the most populated by ladybirds (64%). As the main result of the correlation analysis, the relationship between ladybirds and temperature was strong, especially during 2018 and 2019. The frequencies of morphs differed among years and seasons, and the number of individuals was more considerable with the aphids’ increased populations, especially in the spring (April and May). It coincides with the development of weeds in fields. H. variegata manifested with eighteen different morphs. According to the morphological criteria, the most common morph has 9 spots. Comparing the morphological criteria and genitalia, a sexual inversion was encountered, reaching 16.67% for males and 2.13% for females. It is supposed that the chemicals’ use and the temperature were the main factors that induce polymorphism and sexual inversion with H. variegata. The limited use of chemicals enhances the presence of ladybirds in fields in the Mograne region. Key Words: natural enemies, ladybird, cereals, Hippodamia variegata, Coccinella algerica.
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来源期刊
CiteScore
1.20
自引率
20.00%
发文量
18
审稿时长
>12 weeks
期刊介绍: Redia supports its long history of basic and applied research in entomology and invertebrate zoology in the field of crop and forest tree protection responding at the same time to the increasing need of innovation and technological improvement.
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