Apidologie最新文献

{"title":"Correction to: Higher early than late-season residue load of pesticides in honey bee bread in slovakia","authors":"Martin Staroň, Abdulrahim T. Alkassab, Rastislav Sabo, Lenka Demková, Alexandra Valenčáková, Miloslav Michalko, Jaroslav Legáth, Jens Pistorius, Lucia Sabová","doi":"10.1007/s13592-024-01119-y","DOIUrl":"10.1007/s13592-024-01119-y","url":null,"abstract":"","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-024-01119-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410629","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}

{"title":"Haplotype diversity and Varroa destructor infestation patterns in commercial beekeeping operations across Southwestern Saudi Arabia","authors":"Keegan Nichols,&nbsp;Khalid A. Khan,&nbsp;Tonya Shepherd,&nbsp;Hamed A. Ghramh,&nbsp;Juliana Rangel","doi":"10.1007/s13592-024-01105-4","DOIUrl":"10.1007/s13592-024-01105-4","url":null,"abstract":"<div><p>The honey bee subspecies native to Saudi Arabia, <i>Apis mellifera jemenitica</i> Rutter, is currently being threatened by genetic pressure from exotic subspecies imported by commercial beekeepers. Uncontrolled interbreeding between native and exotic subspecies could dilute advantageous adaptations and give rise to new haplotypes that are not well suited for Saudi Arabia’s harsh climate. In this study, we analyzed the mitochondrial haplotypes and parasitization patterns by <i>Varroa destructor</i> mites in commercial beekeeping operations across Southwestern Saudi Arabia. We sampled 300 workers from five randomly chosen colonies at each of the eleven apiaries from December 2022 to February 2023. We extracted DNA from two workers per colony for analysis of the mitochondrial COI-COII region and assessed the remaining workers for mite infestation levels. We also haplotyped a subgroup of mites. All 55 colonies analyzed belonged to the <i>A. m. jemenitica</i> subspecies, which is part of the Z subgroup of the A lineage. Mitochondrial genome analysis revealed ten distinct haplotype sequences at four of the eleven locations. The average (± SEM) number of mites per 100 workers across all sites was 1.95 ± 0.96 and was below a 3% infestation threshold at nine of the eleven locations. All tested mites belonged to the Korean haplotype. The Al-Riyan, Al-Radha, and Khaitaa apiaries had both, no novel haplotypes, and the lowest <i>Varroa</i> mite infestation levels. This study could ultimately inform a colony selection process for the implementation of a breeding program aimed at improving honey bee productivity in Southwestern Saudi Arabia.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414610","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}

{"title":"The heat is on: impact of heat waves on critical thermal maxima in larvae and adults of solitary bee Osmia bicornis (Hymenoptera: Megachilidae)","authors":"Agnieszka Gudowska,&nbsp;Dawid Moroń","doi":"10.1007/s13592-024-01112-5","DOIUrl":"10.1007/s13592-024-01112-5","url":null,"abstract":"<div><p>Extreme temperature events, such as heat waves, are increasing in frequency, magnitude, and duration. These events are believed to contribute to pollinator decline. Critical thermal maxima (CT_max) is a key physiological trait for understanding an organism’s ecology and predicting its responses to changes in climate. In this study, we investigated whether different life stages with distinct thermoregulatory behaviors differ in their CT_max in the solitary bee <i>Osmia bicornis</i>, one of the most common and important pollinators in Central Europe. Additionally, we tested the influence of excessively high temperatures, heat waves, on the CT_max in <i>Osmia bicornis</i>. We found CT_max varied among life stages, with adults exhibiting higher CT_max than larvae. Both females and males of adult bees showed a negative correlation between CT_max and body mass. Interestingly, adult bees exposed to different heat waves during their larval stage did not exhibit significant shifts in CT_max. These results suggest that bees may have limited capacity to enhance heat tolerance in response to prior heat exposure.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-024-01112-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414583","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}

{"title":"Main causes of producing honey bee colony losses in southwestern Spain: a novel machine learning-based approach","authors":"Eduardo José García-Vicente,&nbsp;María Benito-Murcia,&nbsp;María Martín Domínguez,&nbsp;Ana Pérez Pérez,&nbsp;María González Sánchez,&nbsp;Ismael Rey-Casero,&nbsp;Juan Manuel Alonso Rodríguez,&nbsp;Óscar Barquero-Pérez,&nbsp;David Risco Pérez","doi":"10.1007/s13592-024-01108-1","DOIUrl":"10.1007/s13592-024-01108-1","url":null,"abstract":"<div><p>Honey bees assume a pivotal role as primary pollinators, but they are currently facing a growing crisis of colony losses on a global scale. This sector is important for generating essential products, preserving ecosystems, and crop pollination. This study includes the sampling of 179 beehives from three apiaries in the traditional beekeeping area of Extremadura (Spain) vital beekeeping sector and was carried out between 2020 and 2021 using the decision trees-based model. Some studies have tried to identify the primary causative factors of this issue. However, it is insufficient because the approach disregards potential nonlinear interactions among the various factors. For this reason, through meticulous exploration of different causative factors including <i>Varroa destructor</i>, <i>Nosema ceranae</i>, Deformed Wing Virus (DWV), Chronic Bee Paralysis Virus (CBPV), and strength factors, our study employed for first time machine learning methods to identify the most important variables generating colony loss. Our analysis underscores the importance of brood levels (operculated and open), pollen and honey, <i>Varroa destructor</i> infestation, virus (DWV), and honey bee populations as key determinants of colony survival. These findings hold promise for guiding efficacious colony management strategies and underscoring the latent potential of machine-learning applications in the realm of beekeeping.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-024-01108-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414224","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}

{"title":"The selection traits of mite non-reproduction (MNR) and Varroa sensitive hygiene (VSH) show high variance in subsequent generations and require intensive time investment to evaluate","authors":"Lina Sprau,&nbsp;Birgit Gessler,&nbsp;Melanie Liebsch,&nbsp;Kirsten Traynor,&nbsp;Peter Rosenkranz,&nbsp;Martin Hasselmann","doi":"10.1007/s13592-024-01110-7","DOIUrl":"10.1007/s13592-024-01110-7","url":null,"abstract":"<p>The honey bee ectoparasite <i>Varroa destructor</i> is the main cause of honey bee colony losses worldwide. Over the last decades, several projects have focused on improving the robustness of <i>Apis mellifera</i> against this parasitic mite. Selection traits, such as mite non-reproduction (MNR) and <i>Varroa</i> sensitive hygiene (VSH), are favored selection factors in <i>Varroa</i> resistance projects. VSH is a trait where adult honey bees remove the <i>Varroa</i>-infested brood. During this process, the female mites are arrested in their reproductive cycle leading to a reduction of the <i>Varroa</i> population within the bee colony. From 2019 to 2022, 1402 queens were instrumentally inseminated with single or multiple drones in a breeding program. Colonies headed by these queens were established annually, and the MNR and VSH levels were analyzed. VSH was evaluated in response to cells artificially infested with <i>Varroa</i>, and colonies with high VSH values were used to generate our selected VSH stock. Despite crossing high VSH drones and queens, we measured a remarkable heterogeneity of MNR and VSH in the next generation(s), most likely due to the well-described, high recombination rate in the honey bee genome. When assessed multiple times in the same colony, great variance between measurements was observed. Detailed evaluations of daughter colonies are thus required if selection programs want to breed colonies with reliable VSH traits. This constant need to evaluate all offspring to ensure the desirable resistance traits are present results in high workloads and great expenses in selection programs. Furthermore, such large-scale breeding programs are inefficient due to high fluctuations between measurements and generations, indicating we need to develop new approaches and improved methods for assessing <i>Varroa</i> resistance.</p>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-024-01110-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414225","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}

{"title":"Low concentrations of imidacloprid affect the survival of Tetragona clavipes in a short period of exposure (24 h)","authors":"Aline A. de Oliveira,&nbsp;Lainara O. Carvalho,&nbsp;Hellem Victoria R. dos Santos,&nbsp;Luiz Ricardo G. R. de Oliveira,&nbsp;Althiéris S. Saraiva","doi":"10.1007/s13592-024-01111-6","DOIUrl":"10.1007/s13592-024-01111-6","url":null,"abstract":"<div><p>Neonicotinoid pesticides are widely used to control insect pests in agriculture and livestock production. However, they have been found to negatively affect bees, especially <i>Apis mellifera</i>. Despite this, little research has been conducted on the impact of neonicotinoids on other bee species, including native ones. This study aimed to assess the risks to native bees exposed to low concentrations of imidacloprid (IMI). The <i>Tetragona clavipes</i> (bee native to Brazil) were exposed to eight concentrations of IMI-based insecticide, through contaminated food or mist (350 µL/min) for 24 h. The LC_10-24 h, LC_50-24 h, LC_90-24 h in acute topical effect (ATE) and acute residual effect (ARE) of IMI-based insecticide against bees were calculated. The LC_10-24 h, LC_50-24 h, and LC_90-24 h in ARE were found to be more toxic compared to ATE. In summary, the study highlights that even low levels of IMI can significantly reduce bee survival within 24 h. The urgency to tackle the effects of neonicotinoid pesticides on native bee populations is evident. Preserving bees is crucial for ensuring sustainability, food security, and ecosystem integrity. Responsible pesticide management and conservation efforts are pivotal in safeguarding pollinators and upholding ecological balance.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142413536","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}

{"title":"Scientific note: First report of small hive beetle in South Asia and their potential invasive pathway","authors":"Mohammed Sakhawat Hossain,&nbsp;Muhammad Abdul Hannan,&nbsp;Mst. Munjuri Akter,&nbsp;Minhyeuk Lee,&nbsp;Ming Bai,&nbsp;Seunghyun Lee","doi":"10.1007/s13592-024-01106-3","DOIUrl":"10.1007/s13592-024-01106-3","url":null,"abstract":"","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260997","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}

{"title":"Acute fipronil toxicity induces high mortality rate for honeybees and stingless bees, with the latter facing heightened risk","authors":"Fernanda Gomes de Carvalho,&nbsp;Andressa Linhares Dorneles,&nbsp;Charles Fernando dos Santos,&nbsp;Betina Blochtein","doi":"10.1007/s13592-024-01101-8","DOIUrl":"10.1007/s13592-024-01101-8","url":null,"abstract":"<div><p>Fipronil is an insecticide used against agricultural pests. It disrupts the central nervous system of insects, leading to hyperexcitation, paralysis, and eventual death. Despite being banned in many countries, Brazil extensively employs diverse commercial formulations of fipronil across various crops visited by bees. There is suspicion linked to honeybee colony losses and potential impact on the wild Brazilian bee population. This study aimed to assess the acute toxicity of fipronil on the Africanized honeybee species <i>Apis mellifera</i> and the stingless bee <i>Scaptotrigona bipunctata</i>. The latter represents native Brazilian stingless bees and is highly valued by stingless beekeepers. We conducted oral and topical exposure analyses to determine LC₅₀ and LD₅₀, respectively. We also evaluated food intake with syrup contaminated by varying fipronil doses using linear mixed models. The results demonstrated the high toxicity of fipronil to both bee species. In line with similar studies comparing exotic (<i>A. mellifera</i>) and native stingless bee species in Brazil, our findings indicate that <i>S. bipunctata</i> is less tolerant to pesticides (fipronil) than <i>A. mellifera</i>. As such, <i>S. bipunctata</i> was approximately 6.58 (LC₅₀) and 3.30 (LD₅₀) times more vulnerable than <i>A. mellifera</i>. We did not find significant differences for food intake. The extensive use of fipronil in Brazilian agriculture raises pressing concerns for honeybees and stingless bees. Great efforts are needed for conservation strategies and regulatory actions to safeguard both pollinator species (as well as wild bee population), as these managed bees provide significant income for most smallholders in rural areas.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200805","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}

{"title":"A filmed copulation of Ctenoplectra (Ctenoplectrini, Apidae) bees suggests that males may chemically mark females","authors":"Susanne S. Renner,&nbsp;Meng Zhang,&nbsp;Antonio J. C. Aguiar,&nbsp;Shuang-Quan Huang","doi":"10.1007/s13592-024-01102-7","DOIUrl":"10.1007/s13592-024-01102-7","url":null,"abstract":"<div><p>Recent fieldwork on tropical bees has revealed that males of Ctenoplectrini, Tapinotaspidini, and Tetrapediini collect floral oils, but it remains unknown for which purpose. Observations and chemical tests in Yunnan show that at least 31 species of <i>Dendrobium</i> and two of <i>Galeola</i> orchids have oil hairs on their petals attracting male <i>Ctenoplectra cornuta</i> who collect the secretion in the same way as do females, which however prefer cucurbit flowers. We observed territoriality and mating on flowers and present a filmed copulation sequence during which the male grasps the female’s scutellum with his mandibles and repeatedly brushes her metasomal fringes with his hind legs and her hind scopae with his mid legs. We hypothesize that male <i>Ctenoplectra</i> scent-mark females during mating, which would explain why the males collect floral oils. Mating behavior has so far been documented in but a few dozen solitary bees, and it is for this reason that we here make available the first filmed copulation of any Ctenoplectrini.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200807","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}

{"title":"Comparative prevalence of Nosema ceranae infection between wild and managed honey bee(Apis mellifera) colonies in South Texas","authors":"Myra Dickey,&nbsp;Mckaela Whilden,&nbsp;Jordan Twombly Ellis,&nbsp;Juliana Rangel","doi":"10.1007/s13592-024-01107-2","DOIUrl":"10.1007/s13592-024-01107-2","url":null,"abstract":"<div><p>Over the last few decades, honey bee (<i>Apis mellifera</i>) populations have been challenged by multiple factors including pathogens and parasites, which often act concurrently to cause severe health problems. One honey bee pathogen linked to colony losses worldwide is the microsporidian <i>Nosema</i> spp<i>.</i>, which affects adult bees. Workers infected with <i>Nosema</i> often exhibit shorter lifespans, forage prematurely, and are susceptible to other pathogens. Our main goals were to quantify the levels of <i>Nosema</i> spp<i>.</i> infection in a wild honey bee population at the Welder Wildlife Refuge (WWR) in south Texas, and to compare them to infection levels in colonies from a nearby managed apiary. We hypothesized that wild colonies would have lower infection levels than managed colonies due to their unique life history traits, including lower colony density per unit area, which decreases the likelihood of cross-colony disease transmission. We collected foragers from the entrance of 18 wild colonies at the WWR and 19 managed colonies at the nearby apiary. We then performed individual <i>Nosema</i> spp<i>.</i> spore counts on ten workers per colony to calculate an average spore count per bee. On average, wild colonies had 25,556 spores/bee, while managed colonies had 130,526 spores/bee, both considered to be low. There were no differences in infection levels between colony types. All samples tested positive for <i>N. ceranae</i>; no <i>N. apis</i> was detected. Our results suggest that wild colonies at the WWR have historically been infected with <i>Nosema</i> spp. at low levels and can thrive in the absence of human intervention.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":"55 5","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200810","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}