Environmental Entomology最新文献

{"title":"Development of a test design for a semi-field, colony-feeding study for the common eastern bumble bee (Hymenoptera: Apidae).","authors":"Ana R Cabrera, John Hanzas, Pamela Jensen, Dwayne R J Moore, Daniel R Schmehl","doi":"10.1093/ee/nvaf020","DOIUrl":"10.1093/ee/nvaf020","url":null,"abstract":"<p><p>Ecological risk assessment is a key component of the regulatory process required for registration of crop protection products around the world. The western honey bee (Apis mellifera) is the model organism for pesticide risk assessments for bees, but there are uncertainties over whether it is predictive of risks to other bees. Consequently, efforts are underway to develop test methodologies for other non-Apis bees. We conducted a semi-field colony-feeding study with Bombus impatiens colonies to develop a colony-level methodology for bumble bees. We exposed commercially available bumble bee colonies to diets consisting of 4 concentration treatments of dimethoate insecticide (0.05, 0.19, 0.75, and 3.0 mg a.i./L) via supplemental sugar solution for 6 wk and compared exposed colonies to untreated controls. Each treatment group had 10 replicate colonies, with 1 replicate per treatment group represented at each of the 10 study rural locations. We collected data on various colony-level endpoints including production of female reproductive (gyne) offspring, colony weight, foraging activity, and consumption of provisioned sugar solution. Our results indicated that the test design could be used to derive concentration-response relationships for several endpoints including the most sensitive, colony mass (No Observed Adverse Effect Concentration = 0.05 mg a.i./L). Overall, our study provides the foundation for a semi-field, colony-feeding study test design for bumble bees, thus adding to the growing body of studies that may be used to assess the protectiveness of the honey bee risk assessment framework for non-Apis bees exposed to pesticides.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"544-552"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12199248/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143998283","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":"Impact of chronic exposure to ternary metal mixtures on behavioral and cellular responses in Nauphoeta cinerea nymphs.","authors":"Gbemisola T Oyedele, Oyepeju D Atarase, Adeboye A Olaseni, Joao B T Rocha, Isaac A Adedara, Ebenezer O Farombi","doi":"10.1093/ee/nvaf023","DOIUrl":"10.1093/ee/nvaf023","url":null,"abstract":"<p><p>There is a growing concern about the impact of environmental contamination by metals on insects owing to their biodiversity and important ecological roles. We investigated the neurobehavioral traits, cellular responses, and levels of metals in tissues of Nauphoeta cinerea nymphs exposed, separately and in ternary mixtures, to arsenic (15 and 7.5 mg/L), copper (15 and 7.5 mg/L), and zinc (100 and 50 µg/L), in drinking water for 35 consecutive days. Results showed that the diminutions in locomotor parameters (maximum speed, motility time, and distance traveled), motor and turning capabilities (path efficiency, turn angle, and body rotation) and the increase in anxiety-like behavior (total time freezing and freezing episodes) were more pronounced in individual metal exposure than triple metal mixtures groups. Barring zinc alone group, acetylcholinesterase activity decreased significantly in all the treatment groups compared to the control. The diminutions in glutathione level and antioxidant enzyme activities were partially attenuated in the fat body, midgut, and head of insects in the triple metal mixtures groups. Further, the levels of nitric oxide, hydrogen peroxide, lipid peroxidation, and reactive oxygen and nitrogen species were higher in individual metal exposed insects than the ternary mixture groups. The concentrations of arsenic, copper, and zinc in the fat body, midgut, and head of insects were significantly higher in individual metal exposure groups than the ternary metal mixtures groups. Collectively, the detrimental effects of elevated ecological concentrations of arsenic, copper, and zinc were more pronounced in insects exposed to individual metal than those in ternary mixtures groups.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"409-420"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143970744","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":"Lateralized courtship behavior in Ostrinia furnacalis (Lepidoptera: Crambidae): influence of gender, sexual experience, and its effects on mating success.","authors":"Sohail Abbas, Aleena Alam, Bilal Ahmad, Muneer Abbas, Xiao Feng, Jingxuan Huang, Khalid Ali Khan, Hamed A Ghramh, Shakeel Muhammad, Jamin Ali, Menno Schilthuizen, Donato Romano, Ri-Zhao Chen","doi":"10.1093/ee/nvaf030","DOIUrl":"10.1093/ee/nvaf030","url":null,"abstract":"<p><p>Lateralization in mating behavior is increasingly recognized as a significant trait in insect species, yet its influence associated with gender, and sexual experience in Ostrinia furnacalis (Guenée) remains poorly understood. This study examines how lateralized mating behaviors, gender, and sexual experience interact to influence mating success and efficiency in O. furnacalis. We conducted controlled mating trials to assess how gender and sexual experience shape lateralized directional approaches (eg right- or left-biased) and turnings (eg 180° right- or left-biased) across the pre-copulatory, copulatory, and post-copulatory phases. Our results indicated that, in terms of gender, males were more likely to approach females, whereas females rarely initiated approaches, with both approaches each other simultaneously being infrequent. Both virgin and experienced males showed higher right-biased directional approaches than the front approaches to the females with more left-biased directional turns for successful intromissive copulation. Experienced males showed greater mating success than virgins. In contrast, experienced females exhibited lower mating success and longer post-copulatory interactions compared to virgin females, particularly duration of copulation. Post-copulatory interactions showed that antennal touching occurred more frequently in the experienced pairs. This study is the first to demonstrate the combined influence of gender and sexual experience on lateralized mating dynamics, with male courtship behaviors linked to learning processes. The results indicate that sexual experience, potentially involving learning and memory processes, significantly enhances mating efficiency and fitness in O. furnacalis. This research provides a more nuanced understanding of lateralized mating behaviors in O. furnacalis, with implications for refining pest management strategies in agricultural environments.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"442-453"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143992256","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":"Ethanol: dose-dependent flight responses of bark and woodboring beetles, and associated species of Coleoptera.","authors":"Daniel R Miller","doi":"10.1093/ee/nvaf032","DOIUrl":"10.1093/ee/nvaf032","url":null,"abstract":"<p><p>In 2007 to 2008, I assessed the effects of ethanol release rate (dose) on trap catches of bark and woodboring beetles, and associated species of predators, in 6 experiments in north-central Georgia. Multiple-funnel traps were baited with ethanol alone or co-baited with α-pinene (with or without the bark beetle pheromones ipsenol and ipsdienol). The following species of bark and ambrosia beetles exhibited a positive dose-dependent response to ethanol, regardless of co-baits: Corthylus columbianus Hopkins, Dryoxylon onoharaense (Murayama), Hylastes porculus Erichson, Hylastes salebrosus Eichhoff, Hylobius pales (Herbst), Monarthrum fasciatum (Say), Orthotomicus caelatus (Eichhoff), Xyleborinus saxesenii (Ratzeburg), Xyleborus species, and Xylosandrus crassiusculus (Motschulsky) (Coleoptera: Curculionidae). Hylastes tenuis Eichhoff (Coleoptera: Curculionidae) exhibited a positive dose-dependent response to ethanol alone but not when traps were co-baited with α-pinene, or α-pinene and bark beetle pheromones. A consistent negative dose-dependent response was exhibited by Ips grandicollis (Eichhoff) whereas results with Ips avulsus (Eichhoff) and Dendroctonus terebrans (Olivier) (Coleoptera: Curculionidae) were variable. Longhorn beetles were unaffected by ethanol dose except for Curius dentatus Newman (Coleoptera: Cerambycidae), which exhibited a positive dose-dependent response to ethanol. Three species of predators exhibited positive dose-dependent responses to ethanol: Temnoscheila virescens (F.) (Coleoptera: Trogossitidae), Platysoma parallelum (Say) (Coleoptera: Histeridae), and Lasconotus species (Coleoptera: Zopheridae). Ethanol is a key kairomone for many species of bark and woodboring beetles.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"467-479"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143996263","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 role of canopy structure on the diversity and function of arthropods in coffee agroscapes of the Northern Andes.","authors":"Jonathan Igua-Muñoz, Carolina Ramos, Fredy Alvarado","doi":"10.1093/ee/nvaf038","DOIUrl":"10.1093/ee/nvaf038","url":null,"abstract":"<p><p>Increasing sustainable productive activities to provide food, fiber, and energy is a global necessity for an increasingly populated planet. However, managing productive landscapes requires integrative approaches in which changes in diversity, microhabitat effects and managing conditions are assessed. We analyzed patterns of arthropod diversity, composition, and functional guilds in response to changes in canopy structure (solar radiation, geometry, and openness) in sun and shade coffee plantations in a coffee-producing landscapes of the northern Andes. We found that the response of the arthropod community varied according to the variables analyzed. On the one hand, we found that sun coffee plantations have higher arthropod richness and diversity. However, shaded coffee plantations show higher abundance and biomass values. Similarly, when the arthropod community was separated by functional guilds, a positive effect of solar radiation was observed in shade coffee plantations. Our results suggest that sun coffee plantations are not necessarily an inhospitable environment for arthropod diversity but may be so in terms of ecosystem functions. We conclude that a wider range of variables should be included to get a clearer picture of which productive landscape designs may be best for conserving arthropod biodiversity and ecosystem functions in productive landscapes.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"514-522"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143998284","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":"Dung beetle species assemblages in cattle pastures of Vermont and New York State.","authors":"Bryony Sands, Lauren Giroux, John Bruce","doi":"10.1093/ee/nvaf042","DOIUrl":"10.1093/ee/nvaf042","url":null,"abstract":"<p><p>Dung beetles provide key ecosystem services in pasture environments. In the Northeastern U.S., dairy is the largest agricultural sector and grass-based dairy production is increasing. Despite the importance of dung beetles as beneficial pasture insects, the consequences of changes in pasture habitat with more cattle out on pasture are not well understood, nor is dung beetle species composition known for several states in Northeastern U.S. The aims of this study were to investigate dung beetle diversity and community structure on dairy pastures across Vermont and North Country, New York, and identify relevant livestock management factors that influence these dynamics. Dung baited pitfall trapping and soil health analysis were conducted on 29 grazing dairy farms using different grazing strategies and parasite management. The results reveal an abundant and diverse dung beetle community; however, the population was dominated by individuals of introduced species of European origin, particularly Colobopterus erraticus (Linnaeus, 1758; Coleoptera; Scarabaeidae) which comprised 74% of beetles collected. Native dung beetle species abundance was lower in the Northeast Kingdom of VT. Species assemblage structure differed between management practices related to parasiticide use and grazing. The soil health outcomes bulk density (0 to 50 mm), total carbon, and total nitrogen were correlated with dung beetle biodiversity indices and grazing management. The results indicate that livestock management may influence dung beetle species assemblages and strategies to support biodiversity may support soil health and nutrient cycling in the Northeast.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"532-543"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144062434","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":"Transcriptome analysis and temporal expression patterns of wing development-related genes in Lymantria dispar (Lepidoptera: Erebidae).","authors":"Fengrui Dou, Wenzhuai Ji, Qing Xie, Jingyu Wang, Yixia Cao, Juan Shi","doi":"10.1093/ee/nvae111","DOIUrl":"10.1093/ee/nvae111","url":null,"abstract":"<p><p>Spongy moth, Lymantria dispar Linnaeus (Lepidoptera: Erebidae), stands as a pervasive international threat, marked by its designation as one of the \"world's 100 worst invasive species\" by IUCN, owing to its voracious leaf-eating habits encompassing over 500 plant species. Its strong flight ability facilitates its spread and invasion. The present study aims to uncover differential gene expression, utilizing the Illumina Novaseq6000 sequencing platform for comprehensive transcriptome sequencing and bioinformatic analysis of total RNA extracted from larvae and pupae. Results revealed pivotal processes of protein functional structure conformation, transport, and signal transduction in functional gene annotation during the 2 developmental stages of spongy moth. 18 functional genes, namely, Distal-less (Dll), Wingless (Wg), Decapentaplegic (Dpp), Hedgehog (Hh), Cubitus interruptus (Ci), Patched (Ptc), Apterous (Ap), Serrate (Ser), Fringe (Fng), Achaete (Ac), Engrailed (En), Vestigial (Vg), Scute (Sc), Invected (Inv), Scalloped (Sd), Ultrabithorax (Ubx), Serum Response Factor (SRF), and Spalt-major, associated with wing development were identified, and their expression levels were meticulously assessed through real-time quantitative PCR (RT-qPCR) in 1st-6th instar larvae and male and female pupae wing discs. The results showed that 18 genes exhibited expression. Furthermore, the relative expression values of wing development-related genes were significantly higher in the pupae stage than in the larval stage. The relative expression values of male and female pupae were also significantly different. The RT-qPCR results were in general agreement with the results of transcriptome analysis. This study establishes a foundational understanding of the developmental mechanisms governing the formation of spongy moth wings.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"654-667"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143763177","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":"Temperature, density, and phenotypic plasticity of melanism in Callosobruchus maculatus (Coleoptera: Chrysomelidae).","authors":"Andrew M Stoehr, Liam R Donahue","doi":"10.1093/ee/nvaf034","DOIUrl":"10.1093/ee/nvaf034","url":null,"abstract":"<p><p>Variation in dark coloration due to melanin, i.e., melanism, in insects is often phenotypically plastic and adaptive. However, the pigment melanin and/or components of the melanin synthesis pathway, have many functions in insects beyond just coloration, such as roles in immune defense and cuticular hardening. For these reasons, melanism responses may sometimes be complicated, particularly if melanin-based coloration trades off with other melanin-based functions; such trade-offs may be related to resource availability. We manipulated the temperature and density (number of beetles per bean) of cowpea weevils, Callosobruchus maculatus (Fabricus) (Coleoptera: Chrysomelidae) during the larval and pupal period and found both variables affected the coloration and size (measured as area of elytra) of the emerging adults. Lower temperatures produced darker and larger beetles in both sexes, with females also being darker than males. Increased numbers of beetles per bean reduced both the size and darkness of the beetles. The effects of temperature on melanism are consistent with the adaptive thermal melanism hypothesis while the effects of per-bean density on melanism may reflect resource-based trade-offs. However, both effects were modest and left considerable variation in color unexplained.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"585-592"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144274466","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":"Reclaimed oil pads harbor higher Carabidae (Coleoptera) abundances and species richness-but fall short of reestablishing the native prairie community.","authors":"Natalie M West, Joshua W Campbell, Tatyana A Rand, Evan S Waite, Christina Palmrose-Kreiger, Zachary A Sylvain, David H Branson","doi":"10.1093/ee/nvaf037","DOIUrl":"10.1093/ee/nvaf037","url":null,"abstract":"<p><p>In grassland ecosystems, oil and gas production areas require vegetation reclamations once extractions are completed. These reclamations take years to accomplish and may appear similar to the surrounding undeveloped grasslands. To test whether reclaimed oil/gas pads successfully recover ecological communities, we collected and utilized carabid beetles (Coleoptera: Carabidae) as bioindicators of reclamation success. We compared carabid beetle communities on well pad reclamations and within undisturbed native prairie 50 m and 150 m from the well pad reclaim edges. Overall, we found lower carabid richness and abundance in native prairie at the 150-m distance compared to the well pad reclaims, with the 50 m distance generally falling between the two. The differences in carabid communities likely reflect previously documented differences in vegetation types and structure within the reclaimed well pads that have persisted for decades after reclamation. These reclaimed habitats may be acting as \"islands\" for certain carabid species, representing population sources or sinks that likely influence carabid dynamics within the adjacent native prairie. These findings demonstrate a long-term signature of development disturbance in the landscape.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"489-498"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143996832","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":"On-farm wildflower plantings generate opposing reproductive outcomes for solitary and bumble bee species.","authors":"Gina M Angelella, Christopher T McCullough, Megan E O'Rourke","doi":"10.1093/ee/nvaf033","DOIUrl":"10.1093/ee/nvaf033","url":null,"abstract":"<p><p>Pollinator habitat can be planted on farms to enhance floral and nesting resources, and subsequently, pollinator populations. There is ample evidence linking such plantings to greater pollinator abundance on farms, but less is known about their effects on pollinator reproduction. We placed Bombus impatiens Cresson (Hymenoptera: Apidae) and Megachile rotundata (F.) (Hymenoptera: Megachilidae) nests out on 19 Mid-Atlantic farms in 2018, where half (n = 10) the farms had established wildflower plantings and half (n = 9) did not. Bombus impatiens nests were placed at each farm in spring and mid-summer and repeatedly weighed to capture colony growth. We quantified the relative production of reproductive castes and assessed parasitism rates by screening for conopid fly parasitism and Nosema spores within female workers. We also released M. rotundata cocoons at each farm in spring and collected new nests and emergent adult offspring over the next year, recording female weight as an indicator of reproductive potential and quantifying Nosema parasitism and parasitoid infection rates. Bombus impatiens nests gained less weight and contained female workers with Nosema spore loads over 150 times greater on farms with wildflower plantings. In contrast, M. rotundata female offspring weighed more on farms with wildflower plantings and marginally less on farms with honey bee hives. We conclude that wildflower plantings likely enhance reproduction in some species, but that they could also enhance microsporidian parasitism rates in susceptible bee species. It will be important to determine how wildflower planting benefits can be harnessed while minimizing parasitism in wild and managed bee species.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":"623-631"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143997596","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}