Yao Jun, Du Ting, Li Yangyang, Zhou Chengli, Shi Lei
Key Laboratory of Breeding and Utilization of Resource Insects of National Forestry and Grassland Administration, Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650224, China.
Yunnan Key Laboratory of Breeding and Utilization of Resource Insects, Kunming 650224, China.
Insects. 2025 Apr 1;16(4):368. doi: 10.3390/insects16040368.
This study aims to determine the local host plant range for Yuanjiang River Valley (Cramer, 1779) and evaluate the effects of different host plants on its growth, development, and reproductive success. This research assesses adult oviposition preferences and larval feeding tendencies on various host plants. An age-stage, two-sex life table was constructed to analyze the butterfly's growth, development, reproductive success, survival rates, and other physiological aspects on different host plants. Population dynamics over the next 60 days were simulated to offer a comprehensive evaluation of the host plant suitability for . The results indicated that adults preferred laying eggs on , followed by , , and , with very few eggs laid on and . Larval feeding preferences were observed in the order of > > , with consumed only by first-instar larvae, while and were avoided. Under identical room temperature conditions, larvae feeding on and completed a full generation. Larvae feeding on exhibited shorter developmental periods and higher early survival rates compared to those feeding on , with no significant differences in adult longevity, sex ratio, or number of eggs per female. Female adults did not die immediately after laying eggs. No significant differences in the intrinsic rate of increase (), finite rate of increase (), net reproduction rate (), or doubling time () were found between populations feeding on the two host plants. However, the gross reproductive rate () and mean generation time () were significantly lower in the population feeding on . These results confirm and as host plants for larvae and provide a theoretical and scientific basis for the conservation of the Yuanjiang River Valley population.
本研究旨在确定元江流域凤蝶（Cramer，1779）的本地寄主植物范围，并评估不同寄主植物对其生长、发育和繁殖成功率的影响。本研究评估了成虫在各种寄主植物上的产卵偏好和幼虫的取食倾向。构建了年龄-阶段两性生命表，以分析该蝴蝶在不同寄主植物上的生长、发育、繁殖成功率、存活率及其他生理方面。模拟了接下来60天的种群动态，以全面评估寄主植物对[此处原文缺失相关内容]的适宜性。结果表明，成虫更喜欢在[此处原文缺失相关内容]上产卵，其次是[此处原文缺失相关内容]、[此处原文缺失相关内容]和[此处原文缺失相关内容]，而在[此处原文缺失相关内容]和[此处原文缺失相关内容]上产卵极少。观察到幼虫的取食偏好顺序为[此处原文缺失相关内容]>[此处原文缺失相关内容]>[此处原文缺失相关内容]，[此处原文缺失相关内容]仅被一龄幼虫取食，而[此处原文缺失相关内容]和[此处原文缺失相关内容]则被拒食。在相同室温条件下，取食[此处原文缺失相关内容]和[此处原文缺失相关内容]的幼虫完成了完整的世代发育。与取食[此处原文缺失相关内容]的幼虫相比，取食[此处原文缺失相关内容]的幼虫发育历期更短，早期存活率更高，成虫寿命、性比或每雌产卵数无显著差异。雌成虫产卵后不会立即死亡。取食两种寄主植物的种群之间，内禀增长率（[此处原文缺失相关内容]）、周限增长率（[此处原文缺失相关内容]）、净增殖率（[此处原文缺失相关内容]）或加倍时间（[此处原文缺失相关内容]）均无显著差异。然而，取食[此处原文缺失相关内容]的种群的总繁殖率（[此处原文缺失相关内容]）和平均世代时间（[此处原文缺失相关内容]）显著较低。这些结果证实了[此处原文缺失相关内容]和[此处原文缺失相关内容]是元江流域凤蝶幼虫的寄主植物，并为元江流域凤蝶种群的保护提供了理论和科学依据。
