Apidologie最新文献

Genetic diversity and population structure of Apis cerana complementary sex determiner (csd) genes in China

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-28 DOI: 10.1007/s13592-025-01165-0

Yufei Zou, Congcong Ji, Jiao Tang, Ruiyi Cheng, Jinqiong Shan, Chao Chen

{"title":"Genetic diversity and population structure of Apis cerana complementary sex determiner (csd) genes in China","authors":"Yufei Zou, Congcong Ji, Jiao Tang, Ruiyi Cheng, Jinqiong Shan, Chao Chen","doi":"10.1007/s13592-025-01165-0","DOIUrl":"10.1007/s13592-025-01165-0","url":null,"abstract":"<div><p>In honeybees, fertilized eggs with homozygous complementary sex determiner (<i>csd</i>) alleles develop into sterile diploid males, which are eliminated by workers during the larval stage. A decrease in <i>csd</i> allele diversity leads to increased inbreeding and a higher occurrence of diploid males, significantly decreasing the population growth rate and effective population size. Therefore, understanding and maintaining <i>csd</i> gene diversity is crucial. This study aims to analyze the genetic diversity and population structure of <i>Apis cerana csd</i> genes in China. We sequenced the exon 6–8 region of the <i>csd</i> gene in 250 workers across 13 geographical populations, identifying 234 nucleotide haplotypes and 141 unique amino acid sequences, 89 of which were newly discovered. The <i>csd</i> gene in these populations shows high genetic diversity comparable to that of <i>Apis mellifera</i>; however, the distribution of alleles did not show clusters based on geographic regions. Analyses of genetic differentiation showed variable genetic distance among populations. Our results demonstrate a high diversity of <i>csd</i> genes of <i>A. cerana</i> populations across China, suggesting a low risk of inbreeding in the populations.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513352","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}

引用次数: 0

Thermal preferences of honey bee drones at different ages, depending on the rearing temperature

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-24 DOI: 10.1007/s13592-025-01162-3

Sylwia Łopuch, Krystyna Czekońska

{"title":"Thermal preferences of honey bee drones at different ages, depending on the rearing temperature","authors":"Sylwia Łopuch, Krystyna Czekońska","doi":"10.1007/s13592-025-01162-3","DOIUrl":"10.1007/s13592-025-01162-3","url":null,"abstract":"<div><p>The thermal preferences of honey bee drones change with their age as a result of sexual maturation. However, the factors influencing them are still unknown. For this reason, the aim of this study was to assess the effect of the rearing temperature during the post-capped development of drones on their body mass at eclosion and thermal preferences. Combs with capped brood of drones from three colonies were kept in incubators in changing temperatures from higher to lower (35–33 °C) or from lower to higher (33–35 °C). After emergence, drones were individually weighed. Subsequently, their thermal preferences were tested at the ages of 1, 5, 10, 15, 20, and 25 days. Body mass at eclosion and thermal preferences of drones significantly depended on the rearing temperature and maternal colony. Drones reared in temperatures changing from higher to lower (35–33 °C) were considerably heavier after emergence compared with those reared in temperatures changing from lower to higher (33–35 °C). The thermal preferences of drones also changed with their age. The greatest differences in thermal preferences of drones from both groups (35–33 °C and 33–35 °C) were on the 5th and 15th days of life. These findings indicate that rearing conditions (temperature and colony) influence the body mass at eclosion and thermal preferences of drones.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-025-01162-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475285","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}

引用次数: 0

Dietary consumption of the plant phytochemical, gelsemine, by worker honey bees (Apis mellifera) affects queen bee egg laying

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-21 DOI: 10.1007/s13592-025-01151-6

Michael Goblirsch, Adam R. Hamilton, Molly Carlson, Gene E. Robinson, John J. Adamczyk

{"title":"Dietary consumption of the plant phytochemical, gelsemine, by worker honey bees (Apis mellifera) affects queen bee egg laying","authors":"Michael Goblirsch, Adam R. Hamilton, Molly Carlson, Gene E. Robinson, John J. Adamczyk","doi":"10.1007/s13592-025-01151-6","DOIUrl":"10.1007/s13592-025-01151-6","url":null,"abstract":"<p>Yellow or Carolina jasmine/jessamine (<i>Gelsemium sempervirens</i>) is a flowering plant that serves as a model for the study of plant-pollinator interactions. During the early spring, it produces abundant flowers that are visited by generalist pollinators, such as honey bees (<i>Apis mellifera</i>), especially when other floral resources are scarce. Beekeepers in the Southeastern USA have observed signs of hive intoxication and weakening when yellow jessamine is in bloom, posing implications for hive and apiary management. The phytochemical gelsemine, which is a toxic indole alkaloid present in the plant’s pollen and nectar, may be linked to these observations. Few studies have looked at the effects of ecologically relevant concentrations of gelsemine on honey bee health at the colony level and on queen fecundity. We used Queen Monitoring Cages (QMCs), microcolonies composed of a queen and a small number of workers maintained under laboratory conditions to primarily investigate the impact of gelsemine exposure on queen fecundity, with additional measurements taken for worker mortality, number of workers in the brood area, and consumption of food resources. We exposed the workers to gelsemine by adding it to sucrose solution using field-relevant concentrations that ranged from 20 to 200 ppm for up to 15 days. We found that queen fecundity was significantly reduced in two of four experiments. Overall, worker mortality was low. In addition, when workers consumed sucrose solution containing higher doses of gelsemine, evidence of an aversion effect was observed. This study highlights one facet of yellow jessamine’s potential impact on honey bee colony health and promotes additional research looking at the behavioral and physiological mechanisms contributing to these responses.</p>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143455621","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}

引用次数: 0

The impact of agricultural intensification on bee health and abundance

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-17 DOI: 10.1007/s13592-025-01155-2

Ignacio Pérez-Lagleyze, Alba Tous, Rodrigo Tizón, Juan P. Torretta, Pilar Alda, Hugo J. Marrero

{"title":"The impact of agricultural intensification on bee health and abundance","authors":"Ignacio Pérez-Lagleyze, Alba Tous, Rodrigo Tizón, Juan P. Torretta, Pilar Alda, Hugo J. Marrero","doi":"10.1007/s13592-025-01155-2","DOIUrl":"10.1007/s13592-025-01155-2","url":null,"abstract":"<div><p>Bee populations are declining due to agricultural expansion, habitat loss, and diseases such as nosemosis caused by microsporidian <i>Vairimorpha</i> spp. We evaluate how agricultural intensification affects the abundance of wild (<i>Augochloropsis</i> spp.) and managed (<i>Apis mellifera</i>) bees and how landscape modification impacts bee health quality by altering their susceptibility to be infected by <i>Vairimorpha</i> spp. Bees were collected using pan traps in nine fields with varying management intensities from Argentina, while landscape management intensity was assessed using satellite imagery for each field. We found the abundance of one wild bee species increases as the proportion of landscapes with low intensity management increases. <i>Vairimorpha</i> spores were only found in managed bees. We also found that prevalence of <i>Vairimorpha</i> increases as the proportion of intensive management increases. Our results suggest that agricultural intensification negatively impacts the abundance of wild bee populations and makes managed bees more susceptible to <i>Vairimorpha</i> spp. infection.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430969","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}

引用次数: 0

The missing queen: a non-invasive method to identify queenless stingless bee hives

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-17 DOI: 10.1007/s13592-025-01148-1

Alex Otesbelgue, Ícaro de Lima Rodrigues, Charles Fernando dos Santos, Danielo Gonçalves Gomes, Betina Blochtein

{"title":"The missing queen: a non-invasive method to identify queenless stingless bee hives","authors":"Alex Otesbelgue, Ícaro de Lima Rodrigues, Charles Fernando dos Santos, Danielo Gonçalves Gomes, Betina Blochtein","doi":"10.1007/s13592-025-01148-1","DOIUrl":"10.1007/s13592-025-01148-1","url":null,"abstract":"<div><p>Stingless bee hives are commonly managed in the global tropics and subtropics. However, current monitoring methods for these hives are invasive and subjective, relying on manual assessments conducted by beekeepers. This approach may harm bees and, if performed by non-specialists, can lead to the death of key reproducing individuals: the mother queens. These queens are vital for maintaining hive health, as their absence can lead to colony death. Our study is aimed at exploring the potential of three hive indicators: temperature, humidity, and sound, as predictive factors for discerning the presence or absence of a mother queen in <i>Tetragonisca fiebrigi</i> hives. To do this, we collected data on these variables from six hives, including three queenless hives and three queenright hives, monitored over four consecutive days. Temperature and humidity were recorded every 15 min during this period, and 15-min audio recordings were made each day. We then employed five machine learning algorithms (extreme learning machine, K-nearest neighbors, multilayer perceptron, random forest, and support vector machine) to classify the data. Our findings revealed that all tested algorithms consistently achieved accuracy rates exceeding 90%, whether using acoustic or microclimatic variables. However, the highest accuracy was achieved with the microclimatic dataset. This approach holds great potential for reducing the damages caused by manual inspections while also enabling faster and more precise identification of the health of beehives. By implementing remote monitoring systems based on these indicators, beekeepers can benefit from improved efficiency and accuracy in assessing hive conditions.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430968","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}

引用次数: 0

Bombus-plant interactions defined by bipartite network analysis in an underexplored Mediterranean island (Sicily)

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-14 DOI: 10.1007/s13592-025-01153-4

Carlo Polidori, Beatrice R. Barletti, Marino Quaranta, Andrea Ferrari, Pilar De la Rúa

{"title":"Bombus-plant interactions defined by bipartite network analysis in an underexplored Mediterranean island (Sicily)","authors":"Carlo Polidori, Beatrice R. Barletti, Marino Quaranta, Andrea Ferrari, Pilar De la Rúa","doi":"10.1007/s13592-025-01153-4","DOIUrl":"10.1007/s13592-025-01153-4","url":null,"abstract":"<div><p>Bumblebees (Apidae: <i>Bombus</i>) are abundant pollinators in Mediterranean habitats; however, interaction networks with plants have not yet been investigated in large areas of Italy, including its islands. Here, we analyzed plant-bumblebee networks through seasonal transects in a suburban park and a nature reserve of Eastern Sicily. After molecular and morphological identification of bumblebees, we built bipartite networks extracting complementarity, niche overlap, modularity and nestedness. In total, we sampled 10 of the 15 species of <i>Bombus</i> known from Sicily. Richness was close to that predicted by accumulation curves, and no differences in community diversity were found between the two sites. At both sites, the networks were not nested, highly specialized and modular, with high complementarity and low niche overlap, again with no differences between sites. In both sites, species-level specialization varied considerably and was independent from sample size. The network topologies suggest a possible role of local interspecific competition and/or of interspecific morphological variation among generalist bumblebees. Comparison of previously published data revealed that networks in Mediterranean areas are more specialized than those with a continental climate. This suggests the possibility of increased competition and/or phenotypic variation under harsh Mediterranean conditions. The vulnerability of the Mediterranean basin to droughts caused by climate change calls for detailed studies on pollinator-plant networks for conservation plans.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-025-01153-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423234","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}

引用次数: 0

A scientific note on flower search and floral handling pattern determining flower constancy in bumblebees

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-14 DOI: 10.1007/s13592-025-01152-5

H. Michael G. Lattorff, Juliane Puchert, Susann Parsche

引用次数: 0

The impact of floral diversity on bumblebee colony development and pollination efficacy among foragers

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-13 DOI: 10.1007/s13592-025-01150-7

Jennifer M. Jandt, Barbara I. P. Barratt, Katharine J. M. Dickinson, Georgia G. I. McCombe, Jake Tully, Janice M. Lord

{"title":"The impact of floral diversity on bumblebee colony development and pollination efficacy among foragers","authors":"Jennifer M. Jandt, Barbara I. P. Barratt, Katharine J. M. Dickinson, Georgia G. I. McCombe, Jake Tully, Janice M. Lord","doi":"10.1007/s13592-025-01150-7","DOIUrl":"10.1007/s13592-025-01150-7","url":null,"abstract":"<div><p>The environment in which pollinators are reared may influence both their health and pollination performance. We compared the performance of 12 colonies of bumblebees (<i>Bombus terrestris</i>), each in their own simple (tomato monoculture) or florally diverse (tomatoes, borage, and lavender) arena inside a glasshouse. We found that colonies reared in florally diverse environments had a higher proportion of foragers overall and maintained slightly higher and less variable relative humidity inside the nest. Moreover, adding floral resources to a tomato crop resulted in increased total crop yield, whereas individual tomatoes reared in the simple monoculture environment were larger than those in the diverse. These results provide an important step in understanding the extent to which bumblebee health and flower-visiting behavior are influenced by the complexity of the foraging environment and how a diverse floral environment may enhance pollinator behavior toward a focal crop.\u0000</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-025-01150-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404088","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}

引用次数: 0

Seasonal variations of the five main honey bee viruses in a three-year longitudinal survey 三年纵向调查中五种主要蜜蜂病毒的季节性变化

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-12 DOI: 10.1007/s13592-025-01147-2

Giulia Molinatto, Fanny Mondet, Cristina Marzachi, Cedric Alaux, Eleonora Bassi, Virginie Dievart, Massimiliano Gotti, Giovanni Guido, Pascal Jourdan, Guillaume Kairo, Alban Maisonnasse, Lucie Michel, Mathilde Peruzzi, Marco Porporato, Michele Tagliabue, Andre Kretzschmar, Domenico Bosco, Aulo Manino

{"title":"Seasonal variations of the five main honey bee viruses in a three-year longitudinal survey","authors":"Giulia Molinatto, Fanny Mondet, Cristina Marzachi, Cedric Alaux, Eleonora Bassi, Virginie Dievart, Massimiliano Gotti, Giovanni Guido, Pascal Jourdan, Guillaume Kairo, Alban Maisonnasse, Lucie Michel, Mathilde Peruzzi, Marco Porporato, Michele Tagliabue, Andre Kretzschmar, Domenico Bosco, Aulo Manino","doi":"10.1007/s13592-025-01147-2","DOIUrl":"10.1007/s13592-025-01147-2","url":null,"abstract":"<div><p>Viruses occupy a large proportion of the pathogen communities within honey bee colonies, with more than 80 species detected in <i>Apis mellifera</i>. Honey bee viruses are globally distributed and several species have been linked to honey bee diseases that threaten colony health. However, less is known about the ecology and epidemiology of viruses within honey bee colonies, and in particular whether a link exists between virus temporal dynamics and seasonal variations and/or colony dynamics. Using a large-scale longitudinal survey conducted over three years, we report the prevalence and abundance of deformed wing virus, acute bee paralysis virus, black queen cell virus, chronic bee paralysis virus and sacbrood virus (DWV, ABPV complex, BQCV, CBPV and SBV) in more than 300 colonies located in two different environments of southern Europe (Provence in France, Piemonte in Italy), and exhibiting contrasted climatic conditions. Monthly measurements performed throughout the beekeeping seasons indicate distinct seasonal trends in prevalence and abundance of the five virus species: DWV, SBV and ABPV complex displayed marked seasonal variations, that were similar in both environments tested. We also highlight the link between seasonal virus dynamics and colony dynamics for SBV/BQCV, and parasite dynamics for DWV. This study improves our understanding of virus ecology within honey bee colonies.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388747","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}

引用次数: 0

Metapodal shields: standardizing the morphometric study of Varroa destructor

IF 2.4 3区农林科学

Apidologie Pub Date : 2025-02-11 DOI: 10.1007/s13592-025-01154-3

Paloma Quirino Rocha, Lorena Andrade Nunes, Kátia Peres Gramacho, Edilson Divino de Araujo

{"title":"Metapodal shields: standardizing the morphometric study of Varroa destructor","authors":"Paloma Quirino Rocha, Lorena Andrade Nunes, Kátia Peres Gramacho, Edilson Divino de Araujo","doi":"10.1007/s13592-025-01154-3","DOIUrl":"10.1007/s13592-025-01154-3","url":null,"abstract":"<div><p>The analysis of morphology and body asymmetry in organisms can reveal the challenges faced during development. Populations of <i>Varroa destructor</i> exhibit morphological plasticity, but there is a lack of standardization in body structures and measurements used in research. This study aimed to identify, through geometric morphometrics, a body structure that allows for a standardized study of the morphological variations and fluctuating asymmetry of <i>V. destructor</i> in different environmental contexts. To this end, we analyzed the morphology of mites infesting colonies of Africanized honeybees in two contexts: different levels of hygienic behavior in the colonies and distinct environments (Caatinga and Atlantic Forest). Asymmetry is specifically assessed in the context of these environments. In colonies with differentiated hygienic behaviors, the metapodal shield showed a higher classification rate between groups (70%) than the genitoventral shield (64%), and it was the only structure that showed significant size differences between groups (<i>p</i> < 0.001). In mites from different geographic regions, the metapodal shield also exhibited a higher classification rate (78%) than the genitoventral shield (65%), with no significant difference in the size of the shields between the mite populations. Significant differences in fluctuating asymmetry were observed in the shape and size (<i>p</i> < 0.001) of the pair of metapodal shields and the shape of the genitoventral shield (<i>p</i> < 0.001). The results provide important methodological and ecological insights, highlighting the metapodal shield as a reliable structure for assessing shape, size, and fluctuating asymmetry. This standardization can improve consistency across studies and parasite monitoring.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"56 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388683","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}

引用次数: 0