Medical and Veterinary Entomology最新文献

筛选
英文 中文
Climatic and density-dependent drivers of population dynamics in a hazardous urban scorpion species over seven years. 一种危险城市蝎子种群动态的气候和密度依赖驱动因素。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-09-25 DOI: 10.1111/mve.70117
José Brites-Neto, Julian Nicholas Garcia Willmer, Ana Cláudia Delciellos
{"title":"Climatic and density-dependent drivers of population dynamics in a hazardous urban scorpion species over seven years.","authors":"José Brites-Neto, Julian Nicholas Garcia Willmer, Ana Cláudia Delciellos","doi":"10.1111/mve.70117","DOIUrl":"https://doi.org/10.1111/mve.70117","url":null,"abstract":"<p><p>Tityus serrulatus Lutz & Mello (Scorpiones: Buthidae) is the most medically important scorpion in Brazil, responsible for a growing number of accidents in urban areas. Despite its relevance, the population dynamics of this species in anthropogenic habitats remain poorly understood, particularly regarding the influence of abiotic factors on its abundance and reproduction. We analysed long-term data (2006-2013) from T. serrulatus collected in an urban cemetery in the municipality of Americana, São Paulo State, Brazil. Using spatiotemporal mixed models, we evaluated the effects of temperature and humidity at the graves on the abundance of brooded and non-brooded individuals, as well as on the ratio between the two reproductive groups. A total of 21,489 individuals were recorded, including 463 brooded individuals. While total abundance remained relatively stable across seasons, non-brooded individuals increased mainly with humidity and brooded individuals increased with temperature. The ratio of brooded-to-non-brooded individuals increased as overall abundance declined, indicating potential density-dependent feedback on reproduction. Possibly, this pattern reflects the interaction between climatic and biotic factors. T. serrulatus populations show remarkable resilience and adaptability to urban habitats, with reproductive and demographic responses shaped by both climatic and density-dependent drivers. These insights contribute to the eco-epidemiological understanding of scorpionism and may inform more effective surveillance and control strategies in urban areas.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149038932","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
Hippobosca equina as an emerging threat in northern temperate zones: Species distribution modelling under climate change. 作为北温带新出现的威胁:气候变化下的物种分布模型。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-09-21 DOI: 10.1111/mve.70116
AbdAllah Samer, Hassan H Fadl, Hayam El-Hamouly, Mohamed G Nasser
{"title":"Hippobosca equina as an emerging threat in northern temperate zones: Species distribution modelling under climate change.","authors":"AbdAllah Samer, Hassan H Fadl, Hayam El-Hamouly, Mohamed G Nasser","doi":"10.1111/mve.70116","DOIUrl":"https://doi.org/10.1111/mve.70116","url":null,"abstract":"<p><p>Climate change poses significant threats to arthropod vectors of veterinary importance. Hippobosca equina, the forest fly, is an obligate ectoparasite of ungulates with demonstrated capacity for pathogen transmission. We employed maximum entropy modelling to predict current and future global distribution patterns of H. equina under climate change scenarios. Using 1195 occurrence records and five bioclimatic variables, we generated models for present conditions and future projections (2050s and 2070s) under SSP 3-7.0 and SSP 5-8.5 scenarios. Model performance was robust (AUC = 0.954, TSS validation confirmed). Mean temperature of warmest quarter, temperature seasonality and precipitation seasonality contributed most significantly to distribution patterns. Current suitable habitat centres in temperate Europe, with secondary distributions in western Asia and scattered localities globally. Future projections indicate poleward range shifts, with significant habitat expansion into northern Europe, Russia and North America, while southern temperate regions experience habitat contraction. Quantitative predictions indicate that suitable habitat may increase by up to 24.98%-28.81% and decline by up to 11.45%-17.53% relative to current distributions, depending on the emission scenarios, with the most pronounced turnover occurring under SSP5-8.5 by the 2070s. These findings provide critical baseline data for surveillance programs and inform veterinary public health strategies in regions facing imminent colonization risk.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149012574","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
Evaluation of ovitraps of different materials to monitor the seasonal activity of co-occurring Aedes aegypti and Aedes albopictus. 不同材料诱蚊器监测埃及伊蚊和白纹伊蚊季节性活动的效果评价。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-09-21 DOI: 10.1111/mve.70114
Janinna Faraone, Sylvia Fischer, Carla A Aponte, Eduardo Etchepare, Marina Stein
{"title":"Evaluation of ovitraps of different materials to monitor the seasonal activity of co-occurring Aedes aegypti and Aedes albopictus.","authors":"Janinna Faraone, Sylvia Fischer, Carla A Aponte, Eduardo Etchepare, Marina Stein","doi":"10.1111/mve.70114","DOIUrl":"https://doi.org/10.1111/mve.70114","url":null,"abstract":"<p><p>The selection of oviposition sites by a female mosquito is useful knowledge to monitor the frequency and activity of vector species such as Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) (Diptera: Culicidae). In localities where they co-occur, an additional complexity of monitoring is the species identification. As the eggs of both species are not morphologically distinguishable, the eggs must be induced to hatch, and the newly hatched larvae reared to the fourth instar, identified to species based on morphological characters. Thus, it is very important that eggs remain viable. The aim of this study was to evaluate the selection of ovitraps of different materials (glass, plastic and bamboo) by females of Ae. aegypti and Ae. albopictus in a city where both coexist, and to assess which type of ovitrap would allow better detection of each species. Mosquito eggs were collected weekly from June 2017 to May 2018 in the city of Eldorado (Misiones, Argentina), using the three types of ovitraps placed in urban areas. For each ovitrap, the eggs collected each week were counted and classified by condition (intact, collapsed and hatched eggs). Subsequently, eggs were immersed to induce the hatching of larvae, which were then reared under laboratory conditions, and fourth instar larvae were identified to species. Both species exhibited broadly overlapping seasonal dynamics, with reduced oviposition activity during winter and increased activity during warmer months. Aedes aegypti showed greater temporal persistence and higher overall abundance, whereas Ae. albopictus displayed a more fluctuating pattern with a short-lived peak during the warmest period. Ovitrap material significantly affected egg presence, while no significant differences were found in egg preservation among materials. Species detectability differed among ovitrap materials, with bamboo and glass ovitraps consistently outperforming plastic ovitraps. However, species identification was not possible in a substantial proportion of positive ovitraps, highlighting a methodological limitation of oviposition-based surveillance in sympatric areas. Overall, our results emphasize the importance of considering both seasonal variation and ovitrap material when designing surveillance strategies and provide practical guidance for improving the detection and monitoring of Aedes species in regions where they coexist.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149012624","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
Body size and wing shape responses of mosquitoes (Diptera: Culicidae) to contrasting environmental conditions in cold-temperate Argentine Patagonia. 阿根廷巴塔哥尼亚寒温带地区蚊类(双翅目:库蚊科)体型和翅型对不同环境条件的响应。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-09-17 DOI: 10.1111/mve.70112
Marta G Grech, Luis B Epele, Maximiliano J Garzón, Juan P Bonelli, Mauricio W Dromaz, Cristina N Horak, Federico Brook, Catalina Massone, Walter R Almirón
{"title":"Body size and wing shape responses of mosquitoes (Diptera: Culicidae) to contrasting environmental conditions in cold-temperate Argentine Patagonia.","authors":"Marta G Grech, Luis B Epele, Maximiliano J Garzón, Juan P Bonelli, Mauricio W Dromaz, Cristina N Horak, Federico Brook, Catalina Massone, Walter R Almirón","doi":"10.1111/mve.70112","DOIUrl":"https://doi.org/10.1111/mve.70112","url":null,"abstract":"<p><p>Insect adaptations to seasonal environmental variation reveal diverse responses, including changes in morphology and ecophysiology, which may influence life-history traits during immature and adult stages. The objective of the present study was to evaluate the relative body size and wing shape in adult Culex (Culex) brethesi Dyar mosquitoes (Diptera: Culicidae) emerging from larvae reared under contrasting environmental conditions in Patagonia, Argentina (Aldea Escolar, Chubut Province). Two field experiments were conducted during winter 2021 (winter larvae experiment, WLE) and summer 2022 (summer larvae experiment, SLE). Larval cohorts were monitored until adult emergence. Wing length and centroid size were estimated using linear and geometric morphometric approaches and used as proxies for relative body size. Wing morphology was analysed to characterize variation associated with larval developmental conditions. In addition, survival analyses were performed to assess differences in life-history traits between seasonal cohorts. Generalized linear mixed-effects models showed that females consistently had longer wings than males. The largest wing length values were recorded for WLE females, whereas male wing length was similar between WLE and SLE adults. For centroid size, significant main effects indicated that females and WLE individuals were larger. Wing shape analysis showed that summer individuals exhibited broader wings, whereas winter individuals had narrower wings. Among the environmental variables evaluated in this study, nitrate + nitrite, conductivity and pH emerged as significant predictors of adult body size. Overall, larvae from the winter cohort exhibited higher larval survival but substantially delayed adult emergence and produced larger adults with narrower wings. These differences may be associated with variation in dispersal capacity, reproductive performance and other fitness-related traits. Our findings improve the understanding of how environmental conditions experienced during larval development are associated with variation in mosquito morphology and life-history traits in cold-temperate environments and provide a baseline for future studies on population responses to environmental change.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148990490","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
Effect of the insecticide cypermethrin on behaviour and oxidative stress in the spider Loxosceles laeta. 氯氰菊酯对小蜘蛛行为及氧化应激的影响。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-09-02 DOI: 10.1111/mve.70110
Aldana Laino, Gabriel Molina, Sergio Mijailovsky, Analía Seoane, Carolina Emilse Tarzia, Carlos Fernando Garcia
{"title":"Effect of the insecticide cypermethrin on behaviour and oxidative stress in the spider Loxosceles laeta.","authors":"Aldana Laino, Gabriel Molina, Sergio Mijailovsky, Analía Seoane, Carolina Emilse Tarzia, Carlos Fernando Garcia","doi":"10.1111/mve.70110","DOIUrl":"https://doi.org/10.1111/mve.70110","url":null,"abstract":"<p><p>Loxoscelism, caused by bites from Loxosceles spiders, is a global health concern. Control of these spiders with insecticides remains poorly understood and requires assessment at both biochemical and behavioural levels. We evaluated the ability of Loxosceles laeta to detect cypermethrin-treated surfaces and examined the effects of exposure on enzymatic activity, oxidative stress, biomolecule oxidation and locomotor behaviour. Spiders preferred untreated surfaces and increased movement speed on treated ones, indicating a repellent effect. Acetylcholinesterase activity remained unchanged, whereas antioxidant enzymes showed varied responses: catalase and glutathione reductase increased significantly, while superoxide dismutase, glutathione S-transferase and glutathione peroxidase were unaffected. Reactive oxygen species levels and lipid peroxidation did not increase, although DNA damage was detected. Exposure also reduced the distance travelled over 24 h. This study provides the first combined behavioural and biochemical analysis of L. laeta exposed to cypermethrin, offering key insights for management and toxicity assessment in medically relevant urban spiders.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148880980","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
Bacterial composition of Polygenis (Polygenis) bohlsi bohlsi (Wagner, 1901) (Siphonaptera: Rhopalopsyllidae) associated with Thrichomys fosteri (Rodentia: Echimyidae) in the Brazilian Pantanal wetland. 巴西潘塔纳尔湿地多基因属(Polygenis) bohlsi bohlsi (Wagner, 1901)(单翅目:刺螨科)与fosterthrichomys(啮齿目:刺螨科)的细菌组成。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-09-01 DOI: 10.1111/mve.70111
Michelli Inácio Gonçalves Funnicelli, Renan Bressianini do Amaral, Victória Valente Califre de Mello, Ricardo Bassini-Silva, Lizeth Fernanda Banguero Micolta, Marie Buysse, William Oliveira de Assis, Alanderson Rodrigues da Silva, Heitor Miraglia Herrera, Rosangela Zacarias Machado, Darci Moraes Barros-Battesti, Daniel Guariz Pinheiro, Olivier Duron, Marcos Rogério André
{"title":"Bacterial composition of Polygenis (Polygenis) bohlsi bohlsi (Wagner, 1901) (Siphonaptera: Rhopalopsyllidae) associated with Thrichomys fosteri (Rodentia: Echimyidae) in the Brazilian Pantanal wetland.","authors":"Michelli Inácio Gonçalves Funnicelli, Renan Bressianini do Amaral, Victória Valente Califre de Mello, Ricardo Bassini-Silva, Lizeth Fernanda Banguero Micolta, Marie Buysse, William Oliveira de Assis, Alanderson Rodrigues da Silva, Heitor Miraglia Herrera, Rosangela Zacarias Machado, Darci Moraes Barros-Battesti, Daniel Guariz Pinheiro, Olivier Duron, Marcos Rogério André","doi":"10.1111/mve.70111","DOIUrl":"https://doi.org/10.1111/mve.70111","url":null,"abstract":"<p><p>Fleas (Insecta: Siphonaptera) are important vectors of zoonotic bacterial pathogens. However, the bacterial communities hosted by fleas remain poorly understood, especially regarding the interactions between nonpathogenic bacteria and pathogens, as well as the factors shaping these bacterial communities. This study aimed to explore the bacterial composition and diversity between female and male Polygenis (Polygenis) bohlsi bohlsi fleas collected from free-living Thrichomys fosteri (Rodentia: Echimyidae) in the Nhecolândia region of central-western Brazil. Here, bacterial profiling of fleas was performed using a Next-Generation Sequencing approach targeting the V3-V4 hypervariable region of the 16S rRNA gene to assess community structure. Bacterial diversity in P. (P.) bohlsi bohlsi fleas varied by sex, as indicated by significant differences in alpha diversity, while beta diversity showed a trend toward separation between sexes. Pseudomonadota was the predominant phylum in the flea microbiome. Ten bacterial genera showed differentially abundance between male and female fleas, including Bartonella spp., which was detected exclusively in males, and Wolbachia spp., which was more abundant in females than in males. Phylogenetic analysis positioned Bartonella gltA sequences detected in two fleas within the same clade as Bartonella harrusi. While the Wolbachia wsp and 16S rRNA sequences detected in P. (P.) bohlsi bohlsi grouped within the supergroups S (associated with pseudoscorpions), gatB sequences grouped with V (cat flea-related). These findings suggest sex-associated differences in the microbiome of P. (P.) bohlsi bohlsi fleas and highlight the need for further investigation into the potential role of Wolbachia spp. in shaping flea-associated microbial communities and their interactions with Bartonella spp.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148874153","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
Molecular surveillance reveals Rickettsia aeschlimannii in ticks from livestock in northwestern Iran: A short communication. 分子监测发现伊朗西北部家畜蜱中的艾氏立克次体:短暂传播。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-09-01 Epub Date: 2026-03-30 DOI: 10.1111/mve.70062
Faraz Malek Bagali, Farzad Khademi, Mahdi Rezaverdinejad, Ahmad Enferadi
{"title":"Molecular surveillance reveals Rickettsia aeschlimannii in ticks from livestock in northwestern Iran: A short communication.","authors":"Faraz Malek Bagali, Farzad Khademi, Mahdi Rezaverdinejad, Ahmad Enferadi","doi":"10.1111/mve.70062","DOIUrl":"10.1111/mve.70062","url":null,"abstract":"<p><p>Arthropod-borne rickettsial pathogens are affecting both human and animal health. Due to the lack of studies on tick-borne rickettsiae in this region, the present study aimed to investigate the molecular identity of Rickettsia spp. in ticks in Northwestern Iran. This cross-sectional study was conducted in Ardabil Province from January to December 2024. A total of 700 ticks were collected from livestock. DNA was extracted from pooled ticks, and PCR assays targeting the gltA and 16S rRNA genes were performed to detect Rickettsia spp.; positive PCR products were sequenced for confirmation (Pishgam, Iran). A total of 700 ticks belonging to nine species were isolated from livestock. Among these, Rhipicephalus bursa was the most common species. PCR detected Rickettsia DNA in 2 of 26 pools (7.7%), according to accession gene code: PV929760 and PV929761. According to our findings, R. aeschlimannii was detected in ticks from northwestern Iran. Livestock-associated ticks, including Rhipicephalus spp., are considered logical candidates for further study. Our study highlighted the need for continued surveillance using a One Health approach.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":"677-682"},"PeriodicalIF":2.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13436510/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147581714","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
Impact of bauxite mining on mosquito communities (Diptera: Culicidae) and pathogen transmission risks in the eastern Amazon. 铝土矿开采对亚马逊东部地区蚊群(双翅目:库蚊科)的影响及病原体传播风险
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-08-24 DOI: 10.1111/mve.70107
Mayron Mielly Morais Pacheco, Poliana da Silva Lemos, Mônica Silva Coelho, Tatiane Marques Porangaba de Oliveira, Luciano Chaves Franco Filho, Øystein Wiig, Ana Cristina Mendes-Oliveira, Leonardo Sena, Maria Anice Mureb Sallum
{"title":"Impact of bauxite mining on mosquito communities (Diptera: Culicidae) and pathogen transmission risks in the eastern Amazon.","authors":"Mayron Mielly Morais Pacheco, Poliana da Silva Lemos, Mônica Silva Coelho, Tatiane Marques Porangaba de Oliveira, Luciano Chaves Franco Filho, Øystein Wiig, Ana Cristina Mendes-Oliveira, Leonardo Sena, Maria Anice Mureb Sallum","doi":"10.1111/mve.70107","DOIUrl":"https://doi.org/10.1111/mve.70107","url":null,"abstract":"<p><p>Mining activities pose significant and often underestimated threats to tropical forests, with distinct ecological implications for various taxa, including mosquitoes. This study aimed to investigate the effects of bauxite mining on the diversity, composition and blood-feeding habits of mosquito communities in the Eastern Amazon. The research was conducted in the operational area of Mineração Paragominas S.A., located in the state of Pará, Brazil, where mosquitoes were collected using CDC light traps and active search methods. Species-level taxonomic identification was performed using morphological keys and molecular techniques. Blood meal sources were identified by targeting three mitochondrial genes: 16S, COI and Cytb. Diversity analyses were based on Rényi entropy and rarefaction and extrapolation curves, while compositional changes were assessed through Principal Coordinates Analysis (PCoA). Results showed that bauxite mining significantly alters mosquito community structure in the Eastern Amazon, with critical public health implications. Three main ecological patterns were identified: (1) increased abundance of vector and anthropophilic species (e.g., Aedes albopictus and Culex quinquefasciatus) in mining areas, demonstrating their capacity to invade, establish and proliferate in remote forest habitats; (2) shifts in community composition, with the replacement of forest-dwelling species by generalists in degraded areas and (3) a reduction in the richness of blood sources in impacted areas, compromising the protective dilution effect typically observed in preserved ecosystems. These findings identify mining zones as hotspots for spillover and spillback events, underscoring the need for integrated monitoring (vector-pathogen-host) and artificial breeding site control to mitigate public health risks.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148813331","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
Effects of Asaia spp. on the development, size and associated microbiomes of two mosquito species of medical importance. 亚洲蚊对两种医学蚊种发育、大小及相关微生物组的影响。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-08-24 DOI: 10.1111/mve.70109
Alessandro Roman, Paula Luikens, Constantianus J M Koenraadt, Ben Raymond
{"title":"Effects of Asaia spp. on the development, size and associated microbiomes of two mosquito species of medical importance.","authors":"Alessandro Roman, Paula Luikens, Constantianus J M Koenraadt, Ben Raymond","doi":"10.1111/mve.70109","DOIUrl":"https://doi.org/10.1111/mve.70109","url":null,"abstract":"<p><p>Vector control is essential for mitigating arbovirus outbreaks that are fuelled by the global spread of medically important mosquito species. Control based on synthetic insecticides can be ineffective due to the increasing evolution of resistance. In response, alternative strategies to insecticides, such as the sterile insect technique, have been developed. These rely on mass production and release of sterile or genetically-modified males to target vector populations. The efficient production of 'high-quality' males is crucial for sustaining these control programmes. Probiotic symbionts, inoculated into larval rearing water, present a potentially valuable tool for insect rearing. Here, we tested the hypothesis that inoculation with Asaia spp. can increase both development rate and adult size of the Yellow Fever mosquito Aedes aegypti and the common house mosquito, Culex pipiens molestus. Based on previous work, we hypothesized that Asaia inoculation would affect insect development via effects on other components of the insect microbiome. To test this, we conducted 16S rRNA amplicon sequencing on larval and pupal stages. Exposure to Asaia spp. shortened larval development time and increased adult size in Ae. aegypti and Cx. p. molestus and increased the proportion of insects completing pupation in Ae. aegypti. Effects on adult size were sex-specific but qualitatively consistent across insect species: Asaia bogorensis increased the size of males and females, while A. krungthepensis affected males only. The microbiome analysis was consistent with Asaia affecting insect development via changes in community structure, although inoculation primarily affected the less frequent bacterial taxa. The positive effects of Asaia inoculation on development rate were qualitatively consistent with previous work conducted in a separate insectary, highlighting the reproducibility of Asaia inoculation as a probiotic technique. Overall, our findings suggest that incorporating Asaia as a probiotic symbiont into mass-rearing systems could enhance productivity and yield larger males for release in vector control programs.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148813346","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
Urban ants as potential mechanical vectors of pathogenic and antibiotic-resistant bacteria in a Brazilian hospital. 巴西一家医院中城市蚂蚁作为致病性和耐药细菌的潜在机械媒介。
IF 2.3 3区 农林科学
Medical and Veterinary Entomology Pub Date : 2026-08-19 DOI: 10.1111/mve.70108
Luana Biggi Souza, Anny Karoliny de Lima Dionisio, Mayara Acioli Cedrim, Luiz Carlos Silva Dias Neto, Ellymaira Freitas Pontes, Yáskara Veruska Ribeiro Barros, Renato Júnior Cavalcante da Silva, Ênio Jose Bassi, Jacques Hubert Charles Delabie, Ana Lucia Biggi Souza, Leticia Anderson
{"title":"Urban ants as potential mechanical vectors of pathogenic and antibiotic-resistant bacteria in a Brazilian hospital.","authors":"Luana Biggi Souza, Anny Karoliny de Lima Dionisio, Mayara Acioli Cedrim, Luiz Carlos Silva Dias Neto, Ellymaira Freitas Pontes, Yáskara Veruska Ribeiro Barros, Renato Júnior Cavalcante da Silva, Ênio Jose Bassi, Jacques Hubert Charles Delabie, Ana Lucia Biggi Souza, Leticia Anderson","doi":"10.1111/mve.70108","DOIUrl":"https://doi.org/10.1111/mve.70108","url":null,"abstract":"<p><p>Urban ants may act as mechanical carriers of pathogenic microorganisms in hospitals, potentially posing a risk to public health. To support infection control strategies, we investigated the occurrence of ants associated with clinically relevant microorganisms in a public hospital in Maceió, Alagoas, Brazil. Ants were collected from 17 hospital sectors, and the most prevalent species were Tapinoma melanocephalum and Dorymyrmex brunneus. Microbiological analyses revealed bacterial isolates associated with ants in 10 hospital areas, including emergency wards. A total of 18 bacterial isolates were identified across eight genera, including clinically relevant bacteria such as Escherichia coli, Pluralibacter gergoviae, Citrobacter koseri, Acinetobacter sp. and Pseudomonas sp. Several isolates exhibited resistance to multiple antibiotics, including carbapenems. These findings highlight the potential epidemiological relevance of ants associated with pathogenic and antibiotic-resistant bacteria in hospital environments, emphasising the need for improved pest management and environmental control measures.</p>","PeriodicalId":18350,"journal":{"name":"Medical and Veterinary Entomology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148795118","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书