Individual Dietary Specialization in a Generalist Bee Varies across Populations but Has No Effect on the Richness of Associated Microbial Communities
Individual Dietary Specialization in a Generalist Bee Varies across Populations but Has No Effect on the Richness of Associated Microbial Communities
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DOI：
10.1086/721023
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发表时间：
2022-11-01
影响因子：
2.9
通讯作者：
McFrederick, Quinn S.
中科院分区：
文献类型：
--
作者：
Gaiarsa, Marilia Palumbo;Rehan, Sandra;McFrederick, Quinn S.
尽管越来越多的记录发生的个人专业化，个人消费者之间的相互作用和饮食相关的微生物群落在野生种群之间的关系仍然不清楚。利用来自三个不同野生蜜蜂种群的Ceratina australensis巢的数据，我们将联合收割机元编码和网络方法相结合，探讨种群内和种群间资源利用的个体差异以及饮食专业化是否影响花粉相关微生物的丰富度。我们揭示了存在显着的饮食专业化。在最专业的人群中，我们还表明，个人的饮食广度与真菌的丰富度呈正相关，但不是细菌。总体而言，个人专业化似乎有一个弱或可忽略不计的影响，对巢的微生物丰富度，这表明不同的机制，超越环境传播可能在发挥作用，关于微生物收购野生蜜蜂。
Despite the increasingly documented occurrence of individual specialization, the relationship between individual consumer interactions and diet-related microbial communities in wild populations is still unclear. Using data from nests of Ceratina australensis from three different wild bee populations, we combine metabarcoding and network approaches to explore the existence of individual variation in resource use within and across populations and whether dietary specialization affects the richness of pollen-associated microbes. We reveal the existence of marked dietary specialization. In the most specialized population, we also show that individuals' diet breadth was positively related to the richness of fungi but not bacteria. Overall, individual specialization appeared to have a weak or negligible effect on the microbial richness of nests, suggesting that different mechanisms beyond environmental transmission may be at play regarding microbial acquisition in wild bees.