在营养系统中，寄主植物介导的营养动力学影响黄颡鱼的生命表参数和捕食行为

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2025-03-04 DOI:10.1016/j.cropro.2025.107186

B.V. Jayanth, Shashikala M, Gundreddy Rajareddy, Edula Udaykumar, Gouranga Saw, Bishwajeet Paul

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引用次数: 0

摘要

本研究探讨了棉蚜寄主植物棉花（Gossypium hirsutum L.）和蔷薇（Hibiscus sabdariffa L.）在实验室条件下对多能捕食者小蠹蛾（Geocoris ochropterus Fieber）生活史参数和摄食效率的影响，因为寄主植物显著影响捕食-食饵动态。结果表明，以蚜虫-棉花复合体为食的棉铃虫比以蚜虫-玫瑰复合体为食的棉铃虫发育周期短，成活率高。以棉花蚜虫为食的雌蜂寿命更长，繁殖力更强。生存分析表明，蚜虫-棉花复合体成虫的概率更高，雌性对两种寄主植物（棉花和玫瑰）的种群增长贡献更大。蚜虫-棉花和蚜虫-玫瑰复合饲养的内在增殖率（r = 0.0546和0.0465 day - 1）、有限增殖率（λ = 1.0561和1.0476 day - 1）和平均世代时间（T = 59.1661和61.7271 day）差异均显著，而净繁殖率（R0 = 25.25和17.67个后代/个体）差异均不显著。棉蚜饲养的黄纹田鼠的捕食率高于玫瑰蚜饲养的黄纹田鼠。该研究强调了寄主植物偏好在生物防治计划成功中的重要性，因为植物相关的营养差异影响捕食者适应性和害虫调节效果。寄主植物对捕食者-猎物动态的影响为针对棉蚜和其他食草动物的IPM策略提供了有价值的启示，促进了可持续的农业实践。

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Host plant-mediated trophic dynamics influence life table parameters and predation of Geocoris ochropterus Fieber in a tritrophic system

Our study explores the impact of two host plants of Aphis gossypii Glover, namely cotton (Gossypium hirsutum L.) and roselle (Hibiscus sabdariffa L.), on the life history parameters and feeding efficiency of generalist predator, Geocoris ochropterus Fieber, under laboratory conditions as host plants significantly affect predator-prey dynamics. Findings revealed that G. ochropterus fed on aphid-cotton complex led to shorter developmental periods and higher survival rates than aphid-roselle complex. Female G. ochropterus fed on aphids from cotton exhibited greater longevity and fecundity. Survival analyses indicated a higher probability of adulthood on the aphid-cotton complex, with females contributing more to population growth across both host plants (cotton and roselle). Significant differences were found in the intrinsic rate of increase (r = 0.0546 and 0.0465 day⁻¹), finite rate of increase (λ = 1.0561 and 1.0476 day⁻¹) and mean generation time (T = 59.1661 and 61.7271 day) but the net reproduction rate (R₀ = 25.25 and 17.67 offspring/individual) was found non-significant when reared on aphid-cotton and aphid-roselle complexes, respectively. Aphid-cotton reared G. ochropterus led to higher predation rates than those reared on aphid-roselle. The study underscores the significance of host plant preference in the success of biological control programs, as plant-related nutritional differences influence predator fitness and pest regulation efficacy. This insights into host plant effects on predator-prey dynamics offers valuable implications for IPM strategies targeting A. gossypii and other herbivores, advancing sustainable agricultural practices.

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.