ApidologiePub Date : 2026-10-10DOI: 10.1007/s13592-026-01316-x
Thea Larsen, Alexander Mikheyev
{"title":"Efficacy of control methods for small hive beetle (Aethina tumida): a meta-analysis","authors":"Thea Larsen, Alexander Mikheyev","doi":"10.1007/s13592-026-01316-x","DOIUrl":"10.1007/s13592-026-01316-x","url":null,"abstract":"<div><p>The small hive beetle (<i>Aethina tumida</i>) is a significant global pest of honey bees, causing colony losses and adversely affecting pollination services. Numerous control strategies have been developed, yet their relative effectiveness remains uncertain making it difficult for beekeepers to select among available options. We conducted a meta-analysis utilising only studies that reported quantitative paired treatment-control results with extractable means, measures of variance, and sample sizes. This resulted in the inclusion of 25 eligible studies, comprising 175 treatment trials. Treatments included chemical pesticides and biological controls (entomopathogenic nematodes), as well as physical traps and barriers. Overall, small hive beetle control methods are highly effective, with treatment category effect sizes ranging from 2.24 to 3.37 Hedges’ <i>g</i> (very large effect relative to untreated controls). On average treatments showed a reduction in beetle survival by 58%. However, despite diverse methodologies and contexts, the meta-analysis revealed no statistically significant differences between the examined treatment categories. Laboratory studies were found to overstate treatment effectiveness in comparison to field conditions (Hedges’ <i>g</i> = 4.45, 95% CrI 3.06–6.12 vs 2.90, 95% CrI 1.16–4.57), indicating field-based evaluations are essential for realistic management expectations. Additionally, moderate heterogeneity among studies (Bayesian <i>I</i><sup>2</sup> = 38%, 95% CrI 19–59%) suggested that treatment outcomes vary depending on other variables such as colony health, management practices, or even environmental conditions. These results indicate that while no single treatment consistently outperforms others, there are several options that can provide a substantial impact on beetle reduction. This demonstrated the necessity for integrated pest management approaches tailored to specific local conditions. Future research should focus on standardised field assessments, exploring synergistic combinations of treatments to enhance hive beetle control efficacy. Importantly, honey bee health also needs to be considered alongside beetle control, but is rarely reported in studies.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-026-01316-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149188900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-10-05DOI: 10.1007/s13592-026-01314-z
Qingxin Meng, Shangkao Deng, Rong Huang, Wutao Jiang, Tao Ye, Qian Xia, Yakai Tian, Kun Dong
{"title":"Functional specialization drives structural differentiation in honey-storage and brood-rearing cells in Apis mellifera L. (Hymenoptera: Apidae) combs","authors":"Qingxin Meng, Shangkao Deng, Rong Huang, Wutao Jiang, Tao Ye, Qian Xia, Yakai Tian, Kun Dong","doi":"10.1007/s13592-026-01314-z","DOIUrl":"10.1007/s13592-026-01314-z","url":null,"abstract":"<div><p>Investigation and functional interpretation of honeycomb structures are important for understanding honeybee biology and biomimetic applications. In <i>Apis mellifera</i> (Hymenoptera: Apidae), the diameters of honey-storage cells (HSCs) are similar to those of worker brood cells (WBCs), although the load-bearing capacities of the two cell types differ significantly, potentially due to variations in their internal structures driven by their distinct functions. However, it is not known whether functional differentiation has driven structural divergence between HSCs and WBCs in <i>A. mellifera</i>. This study systematically analyzed and compared the structural differences between these two cell types arranged on naturally built combs by measuring their geometric dimensions and employing principal component and correlation analyses. The results revealed clear structural differentiation between HSCs and WBCs in <i>A. mellifera</i>, with significant differences in their dimensions. The diameter, depth, inclination angle, and content weight of HSCs were all significantly greater than those of WBCs, irrespective of their orientation patterns. Furthermore, both cell depth and inclination angle were significantly positively correlated with the weight of the internal contents of the cells, suggesting that honeybees enhance the load-bearing capacity of HSCs primarily by synergistic increases in their depth and inclination angle. These findings demonstrate the adaptive relationship between structure and function in <i>A. mellifera</i> comb cells, providing further insight into the biology of bee nests.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-10-05DOI: 10.1007/s13592-026-01311-2
Dylan K. Ryals, Mulusew Fikere, Madeline H. Carpenter, J Krispn Given, James C. Fulton, Matthew R. Moore, Ethel M. Villalobos, Robyn Underwood, Myra Dickey, Andrew D. Sweet, Julie M. Allen, Juliana Rangel, Margarita M. López-Uribe, Luiz F. Brito, Andrew H. Paterson, Brock A. Harpur
{"title":"Evaluating imputation methods for determining North American honey bee (Apis mellifera) ancestry from low-pass whole-genome sequencing data","authors":"Dylan K. Ryals, Mulusew Fikere, Madeline H. Carpenter, J Krispn Given, James C. Fulton, Matthew R. Moore, Ethel M. Villalobos, Robyn Underwood, Myra Dickey, Andrew D. Sweet, Julie M. Allen, Juliana Rangel, Margarita M. López-Uribe, Luiz F. Brito, Andrew H. Paterson, Brock A. Harpur","doi":"10.1007/s13592-026-01311-2","DOIUrl":"10.1007/s13592-026-01311-2","url":null,"abstract":"<div><p>Honey bee (<i>Apis mellifera</i>) movement is tightly regulated throughout North America to prevent disease spread and the introduction of unwanted subspecies, such as the ‘scutellatized’ bee (also known as “Africanized,” a mix of <i>A. m. scutellata</i> and managed European bees). In this study, we evaluated the effectiveness of low-coverage whole-genome sequencing (3X) with genotype imputation for ancestry estimation and phenotypic prediction in 289 honey bee samples from the USA and Caribbean. Imputation showed high accuracy (mean r<sup>2</sup> = 85%, median r<sup>2</sup> = 90%) and concordance (r > 95%) with full-depth sequencing, indicating this approach can reliably detect common genetic variation in North American populations. We tested this method’s utility in a key regulatory application: detecting scutellatized ancestry. Low-pass sequence data allowed both genome-wide ancestry estimation and mitochondrial haplotype reconstruction, the latter showing near-perfect agreement with a widely used PCR test. We found that mitochondrial haplotypes were poor predictors of genomic ancestry, and genomic ancestry a better predictor of colony phenotypes. This questions the reliability of mitochondrial-DNA-based detection methods alone in the face of complicated systems of hybridization. Our findings demonstrate that low-coverage sequencing with imputation is a powerful tool for enabling whole genome analyses in honey bees—including ancestry assignment and variant detection—despite a small loss in accuracy. It will likely find application in regulatory screening, design breeding schemes, and population studies.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-026-01311-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-10-02DOI: 10.1007/s13592-026-01308-x
Haoyuan Zhang, Xiang Ding, Jun Liu, Jing Chen, Peixun Gong, Runlang Su
{"title":"Integrative coexpression and deep learning reveal stage-specific regulators of Apis cerana drone embryogenesis","authors":"Haoyuan Zhang, Xiang Ding, Jun Liu, Jing Chen, Peixun Gong, Runlang Su","doi":"10.1007/s13592-026-01308-x","DOIUrl":"10.1007/s13592-026-01308-x","url":null,"abstract":"<div><p>Stage-specific regulators of <i>Apis cerana</i> drone embryogenesis remain poorly defined. RNA-seq profiles from five embryonic stages (12–60 h) were analyzed using weighted gene coexpression network analysis (WGCNA) to construct coexpression modules. Temporal expression patterns were further refined by KNN clustering, and 19 machine learning and deep learning models were benchmarked for gene pattern classification. Top-performing models were integrated through a model consensus intersection strategy and combined with temporal features to identify high-confidence stage-associated candidate genes. Gene expression dynamics were organized into six temporal clusters corresponding to germline and epigenetic regulation (12 h), ncRNA- and rRNA-associated regulation (24 h), neurogenesis and morphogenesis (36–48 h), and late organ specialization (60 h). Among all tested models, ResNet achieved the highest held-out test accuracy. Consensus analysis yielded a robust set of stage-associated genes, from which network central candidate genes and functionally coherent subnetworks were identified. This integrated WGCNA–KNN–ML/DL framework effectively resolves dynamic transcriptional programs during <i>A. cerana</i> drone embryogenesis, revealing coordinated regulatory transitions from early germline specification to late organ development.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-10-02DOI: 10.1007/s13592-026-01313-0
Lucas Araújo Magri, Vinicius de Oliveira Silva, Cíntia Akemi Oi, Mariana Cristina Dessi, Isabel Cristina de Godói, Marco Antonio Del Lama
{"title":"Disentangling environmental influence on wing size and shape in Partamona helleri across the Atlantic forest","authors":"Lucas Araújo Magri, Vinicius de Oliveira Silva, Cíntia Akemi Oi, Mariana Cristina Dessi, Isabel Cristina de Godói, Marco Antonio Del Lama","doi":"10.1007/s13592-026-01313-0","DOIUrl":"10.1007/s13592-026-01313-0","url":null,"abstract":"<div><p><i>Partamona helleri</i> is a stingless bee distributed across the Atlantic Forest, one of Brazil's most threatened biomes. We analyzed wing size and shape in 26 populations spanning the species' latitudinal range to evaluate their associations with environmental variables. Among the variables examined, mean and minimum temperatures explained the largest proportion of wing size variation (13.5% and 9.5%, respectively), whereas rainfall and relative humidity accounted for 2.05% and 2.39% of the total wing shape variation. However, colony and locality explained substantially larger proportions of the total phenotypic variance than the fixed environmental effects, accounting on average for approximately 40% and 38% of centroid size variation, respectively, and 48% and 18% of wing shape variation, respectively. These findings indicate that wing morphology in <i>P. helleri</i> is shaped by both environmental conditions and population-level factors.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-026-01313-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-09-29DOI: 10.1007/s13592-026-01306-z
Yan Zhang, Zunair Ahsan, Yuanchan Fan, Yijun Zhu, Kang Wang, Ting Ji, Zheguang Lin
{"title":"The mitochondrial axis of honey bee resilience: integrating energy, behavior, and environmental adaptation","authors":"Yan Zhang, Zunair Ahsan, Yuanchan Fan, Yijun Zhu, Kang Wang, Ting Ji, Zheguang Lin","doi":"10.1007/s13592-026-01306-z","DOIUrl":"10.1007/s13592-026-01306-z","url":null,"abstract":"<div><p>Mitochondria serve as the central bioenergetic hub that coordinates flight performance, behavioral plasticity, and stress resilience in honey bees (<i>Apis mellifera</i>). This review synthesizes current evidence that flight-muscle mitochondria sustain the extreme energetic demands of foraging through structural optimization, including enhanced cristae density and respiratory enzyme enrichment, alongside remarkable substrate flexibility that enables synergistic pyruvate and glutamate oxidation. Concurrently, robust antioxidant networks scavenge reactive oxygen species (ROS) and preserve redox equilibrium, preventing oxidative damage to the respiratory chain. In the brain, mitochondrial bioenergetics modulate aggression via biogenic amine signaling pathways, including serotonin and dopamine, thereby linking cellular energy status to behavioral output. Differential regulation of oxidative stress balance, mitochondrial dynamics, and metabolic flexibility underpins the marked lifespan divergence between workers and queens, with these plastic responses further shaping age-related task transitions. Under environmental pressure, honey bees display unique mitochondrial resilience: although agrochemicals and xenobiotics disrupt ATP synthesis and inhibit electron transport chain complexes, compensatory mechanisms, including enhanced antioxidant capacity, upregulation of alternative respiratory pathways, and metabolic substrate switching, preserve physiological homeostasis. Likewise, thermal stress triggers dynamic adjustments in respiratory rates, enzyme activities, and ROS management that maintain cellular function across variable temperatures. Collectively, available evidence positions mitochondria as core integrators of individual performance and colony survival. For honey bee management, understanding these mitochondrial stress responses offers practical insights into mitigating sublethal pesticide effects and optimizing hive microclimates to support colony health in intensifying agricultural landscapes.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-09-29DOI: 10.1007/s13592-026-01307-y
Michael N. K. Muturi, Seunghyun Lee, Seunghwan Lee, Rebecca Denes, H. Michael G. Lattorff, Kiatoko Nkoba, Peter Neumann, Alexis Beaurepaire
{"title":"A scientific note on Aethina sp. in wild stingless bee nests","authors":"Michael N. K. Muturi, Seunghyun Lee, Seunghwan Lee, Rebecca Denes, H. Michael G. Lattorff, Kiatoko Nkoba, Peter Neumann, Alexis Beaurepaire","doi":"10.1007/s13592-026-01307-y","DOIUrl":"10.1007/s13592-026-01307-y","url":null,"abstract":"","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13624045/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149103385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-09-28DOI: 10.1007/s13592-026-01310-3
Anna Sobieraj-Betlińska, Piotr Szefer
{"title":"Local and landscape drivers of taxonomic, functional, and compositional diversity of wild bees in urban and rural parks in Central Europe","authors":"Anna Sobieraj-Betlińska, Piotr Szefer","doi":"10.1007/s13592-026-01310-3","DOIUrl":"10.1007/s13592-026-01310-3","url":null,"abstract":"<div><p>Wild bees contribute substantially to biodiversity in agricultural and urban landscapes, yet the relative importance of local habitat conditions, landscape context, and seasonal dynamics in shaping their communities remains insufficiently understood. Here, we studied wild bee communities, excluding managed honey bees, in 22 urban and rural parks in Central Europe. A total of 5763 individuals representing 188 species were recorded. We evaluated bee abundance, species richness, Shannon diversity, functional dispersion, and beta-diversity components in relation to local habitat variables and landscape-scale gradients. Bee forage plant cover was the strongest predictor of wild bee communities, with positive effects on both bee abundance and species richness. Higher forage plant cover was also associated with lower Jaccard dissimilarity and turnover. Seasonal variation was significant for most community metrics, whereas the seasonal pattern in abundance was weaker. Landscape type, floral richness, bare ground, park age, and landscape-scale gradients showed no significant effects on the analyzed community metrics. Functional dispersion showed no significant responses to the measured environmental predictors. Fourth-corner analysis revealed no significant associations between environmental gradients and bee functional traits. Our findings highlight the importance of local floral resource availability for wild bee communities in studied parks. Increasing the cover of bee forage plants may therefore represent an effective strategy for supporting wild bees in human-modified landscapes.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-026-01310-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-09-28DOI: 10.1007/s13592-026-01315-y
Jennifer M. Standley, Anthony P. Abbate, Pierre W. Lau, Giovanni Tundo, Geoffrey R. Williams
{"title":"A scientific note on an invasive pollen provider, tallow (Triadica sebifera), as a resource for honeybees (Apis mellifera)","authors":"Jennifer M. Standley, Anthony P. Abbate, Pierre W. Lau, Giovanni Tundo, Geoffrey R. Williams","doi":"10.1007/s13592-026-01315-y","DOIUrl":"10.1007/s13592-026-01315-y","url":null,"abstract":"","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-026-01315-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ApidologiePub Date : 2026-09-23DOI: 10.1007/s13592-026-01302-3
Liuchang Miao, Xinlan Chen, Huoqing Zheng, Stephen Martin
{"title":"Living with Tropilaelaps mercedesae: its history and impact on Chinese beekeeping","authors":"Liuchang Miao, Xinlan Chen, Huoqing Zheng, Stephen Martin","doi":"10.1007/s13592-026-01302-3","DOIUrl":"10.1007/s13592-026-01302-3","url":null,"abstract":"<div><p><i>Tropilaelaps mercedesae</i> is an ectoparasitic mite of the honey bee <i>Apis dorsata.</i> In the 1950s, <i>T. mercedesae</i> jumped the species barrier from its original host <i>A. dorsata</i> and started causing problems in <i>Apis mellifera</i> colonies in China. Thus, this mite has been part of Chinese beekeeping for over 60 years. Initial reports of collapsing colonies were from three provinces, all outside the range of <i>A. dorsata</i>, indicating the important role of migratory beekeeping in spreading this pest. Then long-distance movement of beehives spread <i>T. mercedesae</i> throughout China. Several miticides used in China against the <i>Varroa destructor</i> mite were ineffective against <i>T. mercedesae</i> because the mites spend little time outside sealed brood cells. Hence, sublimed sulfur and formic acid are used to treat <i>T. mercedesae</i> since the latter compound can penetrate brood cell cappings. Also, brood breaks are commonly used by Chinese beekeepers. Four major gaps in our knowledge of <i>T. mercedesae</i> are discussed: how the mite survives long broodless periods; mite reproduction in its native and new hosts; treatment thresholds; and resistance mechanisms against the mite in <i>A. dorsata</i> and <i>A. cerana</i>.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"57 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-026-01302-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149035025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}