Comparative demography of group- and individually-reared life tables of papaya mealybug with an innovative life table analysis for species in which females and males have a different number of stages

IF 5.6 1区农林科学 Q1 ENTOMOLOGY

Entomologia Generalis Pub Date : 2024-05-02 DOI:10.1127/entomologia/2024/2332

Yan Jin, Jing Wang, Dao-Ling Huang, Meng-Zhu Shi, Hsin Chi, Elahe Rostami, Aurang Kavousi, Jian-Wei Fu

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引用次数: 0

Abstract

The life table data of papaya mealybug, Paracoccus marginatus Williams and Granara de Willink (Hemiptera: Pseudococcidae), on the jatropha, Jatropha integerrima (Euphorbiaceae), were collected using individually- and group-rearing and analyzed by using the age-stage, two-sex life table. Because the male individuals have six stages while the female individuals have only five stages, a new method was developed for a correct description of life stages and life table analysis. In general, the developmental durations of individually-reared insects were significantly longer than those of group-reared insects. Although the mean fecundity (F = 167.84 eggs/female) and the net reproductive rate (R0 = 62.10 offspring) of the individually-reared cohort were significantly higher than those of group-reared cohort (F = 66.5 eggs/female and R0 = 18.62 offspring), there were no significant differences in the population growth rates, i.e., intrinsic rate of increase r and finite rate of increase λ. Because the age variable x is an exponent in the Euler-Lotka equation, the first reproductive age and total preoviposition period are important factors in the determining the value of population growth rates. The life table data were used to simulate the population growth and timing of the control. Our results demonstrated that for group-lived insects like papaya mealybug, life table data collected using group-reared cohort is a better option for simulating pest population growth and management than data from individually-reared cohort.

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木瓜蚧群养和个体饲养生命表的人口比较，以及对雌性和雄性具有不同阶段数的物种进行生命表分析的创新方法

通过个体饲养和群体饲养收集了木瓜蚧（Paracoccus marginatus Williams 和 Granara de Willink，半翅目：伪球虫科）在麻风树（Jatropha integerrima，大戟科）上的生命表数据，并利用年龄阶段双性生命表进行了分析。由于雄性个体有六个阶段，而雌性个体只有五个阶段，因此开发了一种新方法来正确描述生命阶段和分析生命表。一般来说，个体饲养的昆虫的发育期明显长于群体饲养的昆虫。虽然个体饲养群的平均繁殖力（F = 167.84 卵/雌虫）和净繁殖率（R0 = 62.10 后代）明显高于群体饲养群（F = 66.5 卵/雌虫和 R0 = 18.62 后代），但种群增长率（即内在增长率 r 和有限增长率 r）没有显著差异、由于年龄变量 x 是欧拉-洛特卡方程（Euler-Lotka equation）中的一个指数，因此第一生育年龄和总产卵前时期是决定种群增长率值的重要因素。我们利用生命表数据模拟了种群增长和控制时间。我们的研究结果表明，对于像木瓜蚧这样的群居昆虫来说，利用群养同群昆虫收集的生命表数据比利用单养同群昆虫收集的数据更适合用于模拟害虫种群增长和管理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Entomologia Generalis 生物-昆虫学

CiteScore

7.10

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： Its scope covers all aspects of basic and applied research dealing with insects and more broadly with arthropods inhabiting wild, agricultural and/or urban habitats. The journal also considers research integrating various disciplines and issues within the broad field of entomology and ecology. Entomologia Generalis publishes high quality research articles on advances in knowledge on the ecology and biology of arthropods, as well as on their importance for key ecosystems services, e.g. as biological control and pollination. The journal devotes special attention to contributions providing significant advances (i) on the fundamental knowledge and on sustainable control strategies of arthropod pests (including of stored products) and vectors of diseases, (ii) on the biology and ecology of beneficial arthropods, (iii) on the spread and impact of invasive pests, and (iv) on potential side effects of pest management methods. Entomologia Generalis welcomes review articles on significant developments in the field of entomology. These are usually invited by the editorial board, but proposals may be sent to the Editor-in-Chief for preliminary assessment by the editorial board before formal submission to the journal. The journal also considers comments on papers published in Entomologia Generalis, as well as short notes on topics that are of broader interest.