Comparative assessment of food consumption, longevity, thermoregulation, and molecular health markers in mite-resistant and Italian honey bee stocks

IF 2.4 3区农林科学 Q1 ENTOMOLOGY

Apidologie Pub Date : 2024-04-25 DOI:10.1007/s13592-024-01071-x

William G. Meikle, Milagra Weiss, Daniela Adjaye, Vincent A. Ricigliano

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Abstract

Identifying traits for adaptation to different management and environmental regimes is key to maintaining robust honey bee populations under global climate change. We compared mite-resistant (Pol-line and Russian) and Italian honey bee stocks in variable-temperature cage experiments (200 bees per cage) with respect to food consumption, thermoregulation, gene expression, and lifespan, in 3 experiments over 2 years. The Italian stock bees consumed more syrup and pollen on average than the mite-resistant stocks, but the mite-resistant stocks maintained higher cluster temperatures and had median lifespans 8 days longer, consistent with the increased expression of vitellogenin relative to Italian stock. Model results indicated that, to maintain the same colony size as the mite-resistant stocks, Italian stock colonies would need about 13% more sealed brood to offset reduced worker lifespans. These differences among bee stocks likely influence colony-level productivity and health, and showed the importance of experimental replication.

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对抗螨蜜蜂种群和意大利蜜蜂种群的食物消耗、寿命、体温调节和分子健康标记进行比较评估

确定适应不同管理和环境制度的特征是在全球气候变化下维持蜜蜂种群稳健的关键。在为期两年的三次实验中，我们比较了抗螨蜜蜂（Pol-line和俄罗斯）和意大利蜜蜂种群在变温笼实验（每笼200只蜜蜂）中的食物消耗、体温调节、基因表达和寿命。与抗螨虫种群相比，意大利种群蜜蜂平均消耗更多的糖浆和花粉，但抗螨虫种群能维持更高的群温，中位寿命延长了8天，这与意大利种群蜜蜂卵黄素表达量的增加是一致的。模型结果表明，要保持与抗螨种群相同的蜂群规模，意大利种群需要增加约 13% 的密封育雏量，以抵消工蜂寿命的缩短。蜜蜂种群之间的这些差异很可能会影响蜂群的生产力和健康，这也表明了重复实验的重要性。

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来源期刊

Apidologie 生物-昆虫学

CiteScore

5.10

自引率

8.30%

发文量

审稿时长

3 months

期刊介绍： Apidologie is a peer-reviewed journal devoted to the biology of insects belonging to the superfamily Apoidea. Its range of coverage includes behavior, ecology, pollination, genetics, physiology, systematics, toxicology and pathology. Also accepted are papers on the rearing, exploitation and practical use of Apoidea and their products, as far as they make a clear contribution to the understanding of bee biology. Apidologie is an official publication of the Institut National de la Recherche Agronomique (INRA) and Deutscher Imkerbund E.V. (D.I.B.)