Current Research in Insect Science最新文献

{"title":"Neglecting non-bee pollinators may lead to substantial underestimation of competition risk among pollinators","authors":"Fabrice Requier ,&nbsp;Myriam Abdelli ,&nbsp;Mathilde Baude ,&nbsp;David Genoud ,&nbsp;Hadrien Gens ,&nbsp;Benoît Geslin ,&nbsp;Mickaël Henry ,&nbsp;Lise Ropars","doi":"10.1016/j.cris.2024.100093","DOIUrl":"10.1016/j.cris.2024.100093","url":null,"abstract":"<div><p>Due to the increasing pressures on bees, many beekeepers currently wish to move their managed livestock of <em>Apis mellifera</em> into little disturbed ecosystems such as protected natural areas. This may, however, exert detrimental competitive effects upon local wild pollinators. While it appears critical for land managers to get an adequate knowledge of this issue for effective wildlife conservation schemes, the frequency of this competition is not clear to date. Based on a systematic literature review of 96 studies, we assessed the frequency of exploitative competition between honey bees and wild pollinators. We found that 78% of the studies highlighted exploitative competition from honey bees to wild pollinators. Importantly, these studies have mostly explored competition with wild bees, while only 18% of them considered other pollinator taxa such as ants, beetles, bugs, butterflies, flies, moths, and wasps. The integration of non-bee pollinators into scientific studies and conservation plans is urgently required as they are critical for the pollination of many wild plants and crops. Interestingly, we found that a majority (88%) of these studies considering also non-bee pollinators report evidence of competition. Thus, neglecting non-bee pollinators could imply an underestimation of competition risks from honey bees. More inclusive work is needed to estimate the risks of competition in its entirety, but also to apprehend the context-dependency of competition so as to properly inform wildlife conservation schemes.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"6 ","pages":"Article 100093"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666515824000234/pdfft?md5=1362dc76b516bde790e0bb787dd6593a&pid=1-s2.0-S2666515824000234-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141962984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arthropod repellent interactions with olfactory receptors and ionotropic receptors analyzed by molecular modeling","authors":"Robert Renthal","doi":"10.1016/j.cris.2024.100082","DOIUrl":"https://doi.org/10.1016/j.cris.2024.100082","url":null,"abstract":"<div><p>The main insect chemoreceptors are olfactory receptors (ORs), gustatory receptors (GRs) and ionotropic receptors (IRs). The odorant binding sites of many insect ORs appear to be occluded and inaccessible from the surface of the receptor protein, based on the three-dimensional structure of OR5 from the jumping bristletail <em>Machilis hrabei</em> (<em>Mhra</em>OR5) and a survey of a sample of vinegar fly (<em>Drosophila melanogaster</em>) OR structures obtained from artificial intellegence (A.I.) modeling. Molecular dynamics simulations revealed that the occluded site can become accessible through tunnels that transiently open and close. The present study extends this analysis to examine seventeen ORs and one GR docking with ligands that have known valence: nine that signal attraction and nine that signal aversion. All but one of the receptors displayed occluded ligand binding sites analogous to <em>Mhra</em>OR5, and docking software predicted the known attractant and repellent ligands will bind to the occluded sites. Docking of the repellent DEET was examined, and more than half of the OR ligand sites were predicted to bind DEET, including receptors that signal aversion as well as those that signal attraction. However, DEET may not actually have access to all the attractant binding sites. The larger size and lower flexibility of repellent molecules may restrict their passage through the tunnel bottlenecks, which could act as filters to select access to the ligand binding sites. In contrast to ORs and GRs, the IR ligand binding site is in an extracellular domain known to undergo a large conformational change from an open to a closed state. A.I. models of two <em>D. melanogaster</em> IRs of known valence and two blacklegged tick (<em>Ixodes scapularis</em>) IRs having unknown ligands were computationally tested for attractant and repellent binding. The ligand-binding sites in the closed state appear inaccessible to the protein surface, so attractants and repellents must bind initially at an accessible site in the open state before triggering the conformational change. In some IRs, repellent binding sites were identified at exterior sites adjacent to the ligand-binding site. These may be allosteric sites that, when occupied by repellents, can stabilize the open state of an attractant IR, or stabilize the closed state of an IR in the absence of its activating ligand. The model of <em>D. melanogaster</em> IR64a suggests a possible molecular mechanism for the activation of this IR by <em>H</em>⁺. The amino acids involved in this proposed mechanism are conserved in IR64a from several Dipteran pest species and disease vectors, potentially offering a route to discovery of new repellents that act via the allosteric site.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"5 ","pages":"Article 100082"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266651582400012X/pdfft?md5=70cfb410fe2c872ff499789f6b5196c8&pid=1-s2.0-S266651582400012X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140894459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Standard metabolic rate variation among New Zealand Orthoptera","authors":"Mariana Bulgarella ,&nbsp;John Haywood ,&nbsp;Eddy J. Dowle ,&nbsp;Mary Morgan-Richards ,&nbsp;Steven A. Trewick","doi":"10.1016/j.cris.2024.100092","DOIUrl":"10.1016/j.cris.2024.100092","url":null,"abstract":"<div><p>Standard metabolic rates (SMR) of ectotherms reflect the energetic cost of self-maintenance and thus provide important information about life-history strategies of organisms. We examined variation in SMR among fifteen species of New Zealand orthopteran. These species represent a heterogeneous group with a wide geographic distribution, differing morphologies and life histories. Gathering original data on morphological and physiological traits of individual species is a first step towards understanding existing variability. Individual metabolic rates of ectotherms are one of the first traits to respond to climate change. Baseline SMR datasets are valuable for modeling current species distributions and their responses to a changing climate. At higher latitudes, the average environmental temperature decreases. The pattern that cold-adapted ectotherms display higher SMR at colder temperatures and greater thermal sensitivity to compensate for lower temperatures and the shorter growing and reproductive seasons is predicted from the metabolic cold adaptation (MCA) hypothesis. We predict higher SMR for the orthopteran species found at higher latitudes. We further compared the index of thermal sensitivity Q₁₀ per species. We used closed-system respirometry to measure SMR, at two test temperatures (4 °C and 14 °C), for the fifteen species acclimated to the same conditions. As expected, we found significant differences in SMR among species. The rate of oxygen consumption was positively correlated with body mass. Our findings do not support the MCA hypothesis. In fact, we found evidence of co-gradient variation in SMR, whereby insects from higher elevations and latitudes presented lower SMR. We discuss our findings in relation to life histories and ecology of each species. The novel physiological data presented will aid in understanding potential responses of these unusual species to changing climatic conditions in Aotearoa/New Zealand.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"6 ","pages":"Article 100092"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666515824000222/pdfft?md5=06ad71529af6dd37b5a5e2e7a2736ba8&pid=1-s2.0-S2666515824000222-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141852050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An enigmatic Cretaceous beetle with possible affinity to Erotylidae (Coleoptera: Cucujiformia)","authors":"Yan-Da Li ,&nbsp;Zhen-Hua Liu ,&nbsp;Di-Ying Huang ,&nbsp;Chen-Yang Cai","doi":"10.1016/j.cris.2024.100075","DOIUrl":"https://doi.org/10.1016/j.cris.2024.100075","url":null,"abstract":"<div><p>The morphology of beetles of the recently defined superfamilies Erotyloidea, Nitiduloidea and Cucujoidea is varied. Determining the systematic positions of Mesozoic fossils within these groups can often be challenging. Here we describe and illustrate a puzzling cucujiform beetle, <em>Isocryptophilus exilipunctus</em> Li &amp; Cai <strong>gen. &amp; sp. nov.</strong>, based on an individual from mid-Cretaceous Burmese amber. While we cannot definitively pinpoint the exact phylogenetic position of <em>Isocryptophilus</em>, its possible affinity to Erotylidae is discussed in light of our phylogenetic analyses. A broader-sampled morphological matrix, coupled with a robust molecular phylogeny of these groups, will be promising for clarifying the systematic placement of the fossil.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"5 ","pages":"Article 100075"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666515824000052/pdfft?md5=6812c80968b9675c7f9f9e7da2605894&pid=1-s2.0-S2666515824000052-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139731781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Rhodnius prolixus catalytically inactive Calpain protease patterns the insect embryonic dorsal-ventral axis","authors":"Alison Julio ,&nbsp;Tainan C. Guedes-Silva ,&nbsp;Mateus Berni ,&nbsp;Paulo Mascarello Bisch ,&nbsp;Helena Araujo","doi":"10.1016/j.cris.2024.100094","DOIUrl":"10.1016/j.cris.2024.100094","url":null,"abstract":"<div><p>The calcium dependent Calpain proteases are modulatory enzymes with important roles in cell cycle control, development and immunity. In the fly model <em>Drosophila melanogaster</em> Calpain A cleaves Cactus/IkappaB and consequently modifies Toll signals during embryonic dorsal-ventral (DV) patterning. Here we explore the role of Calpains in the hemiptera <em>Rhodnius prolixus</em>, an intermediate germband insect where the Bone Morphogenetic Protein (BMP) instead of the Toll pathway plays a major role in DV patterning. Phylogenetic analysis of Calpains in species ranging from Isoptera to Diptera indicates an increase of Calpain sequences in the <em>R. prolixus</em> genome and other hemimetabolous species. One locus encoding each of the <em>CalpC, CalpD</em> and <em>Calp7</em> families, and seven Calpain A/B loci are present in the <em>R. prolixus</em> genome. Several predicted <em>R. prolixus</em> Calpains display a unique architecture, such as loss of Calcium-binding EF-hand domains and loss of catalytic residues in the active site CysPc domain, yielding catalytically dead Calpains A/B. Knockdown for one of these inactive Calpains results in embryonic DV patterning defects, with expansion of ventral and lateral gene expression domains and consequent failure of germ band elongation. In conclusion, our results reveal that Calpains may exert a conserved function in insect DV patterning, despite the changing role of the Toll and BMP pathways in defining gene expression territories along the insect DV axis.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"6 ","pages":"Article 100094"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666515824000246/pdfft?md5=41d2c9ae156f861f2c8a2994a9f035f0&pid=1-s2.0-S2666515824000246-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Consistent differences in tissue oxygen levels across 15 insect species reflect a balance between oxygen supply and demand and highlight a hitherto unknown adaptation for extracting sufficient oxygen from water","authors":"Jackson H. Birrell ,&nbsp;Wilco C.E.P. Verberk ,&nbsp;H. Arthur Woods","doi":"10.1016/j.cris.2024.100095","DOIUrl":"10.1016/j.cris.2024.100095","url":null,"abstract":"<div><p>Animals, including insects, need oxygen for aerobic respiration and eventually asphyxiate without it. Aerobic respiration, however, produces reactive oxygen species (ROS), which contribute to dysfunction and aging. Animals appear to balance risks of asphyxiation and ROS by regulating internal oxygen relatively low and stable, but sufficient levels. How much do levels vary among species, and how does variation depend on environment and life history? We predicted that lower internal oxygen levels occur in insects with either limited access to environmental oxygen (i.e., insects dependent on aquatic respiration, where low internal levels facilitate diffusive oxygen uptake, and reduce asphyxiation risks) or consistently low metabolic rates (i.e., inactive insects, requiring limited internal oxygen stores). Alternatively, we predicted insects with long life-stage durations would have internal oxygen levels &gt; 1 kPa (preventing high ROS levels that are believed to occur under tissue hypoxia). We tested these predictions by measuring partial pressures of oxygen (PO₂) in tissues from juvenile and adult stages across 15 species comprising nine insect orders. Tissue PO₂ varied greatly (from 0 to 18.8 kPa) and variation across species and life stages was significantly related to differences in habitat, activity level, and life stage duration. Individuals with aquatic respiration sustained remarkably low PO₂ (mean = 0.88 kPa) across all species from Ephemeroptera (mayflies), Plecoptera (stoneflies), Trichoptera (caddisflies), and Diptera (true flies), possibly reflecting a widespread, but hitherto unknown, adaptation for extracting sufficient oxygen from water. For Odonata (dragonflies), aquatic juveniles had higher PO₂ levels (mean = 6.12 kPa), but these were still lower compared to terrestrial adults (mean = 13.3 kPa). Follow-up tests in juvenile stoneflies showed that tissue PO₂ remained low even when exposed to hyperoxia, suggesting that levels were down-regulated. This was further corroborated since levels could be modulated by ambient oxygen levels in dead individuals. In addition, tissue PO₂ was positively related to activity levels of insect life stages across all species and was highest in stages with short durations. Combined, our results support the idea that internal PO₂ is an evolutionarily labile trait that reflects the balance between oxygen supply and demand within the context of the environment and life-history of an insect.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"6 ","pages":"Article 100095"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666515824000258/pdfft?md5=e883d413040d01f9f969cafdd597fa74&pid=1-s2.0-S2666515824000258-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N-mixture models for population estimation: Application in spotted lanternfly egg mass survey","authors":"Houping Liu ,&nbsp;James T. Julian","doi":"10.1016/j.cris.2024.100078","DOIUrl":"https://doi.org/10.1016/j.cris.2024.100078","url":null,"abstract":"<div><p>Population density and structure are critical to nature conservation and pest management. Traditional sampling methods such as capture-mark-recapture and catch-effort can't be used in situations where catching, marking, or removing individuals are not feasible. N-mixture models use repeated count data to estimate population abundance based on detection probability. They are widely adopted in wildlife surveys in recent years to account for imperfect detection. However, its application in entomology is relatively new. In this paper, we describe the general procedures of N-mixture models in population studies from data collection to model fitting and evaluation. Using <em>Lycorma delicatula</em> egg mass survey data at 28 plots in seven sites from the field, we found that detection probability (<em>p</em>) was negatively correlated with tree diameter at breast height (DBH), ranged from 0.516 [95 % CI: 0.470−0.561] to 0.614 [95 % CI: 0.566−0.660] between the 1st and the 3rd sample period. Furthermore, egg mass abundance (λ) was positively associated with basal area (BA) for the sample unit (single tree), with more egg masses on tree of heaven (TOH) trees. More egg masses were also expected on trees of other species in TOH plots. Predicted egg mass density (masses/100 m²) ranged from 5.0 (95 % CI: 3.0−16.0) (Gordon) to 276.9 (95 % CI: 255.0−303.0) (Susquehannock) for TOH plots, and 11.0 (95 % CI: 9.00−15.33) (Gordon) to 228.3 (95 % CI: 209.7−248.3) (Burlington) for nonTOH plots. Site-specific abundance estimates from N-mixture models were generally higher compared to observed maximum counts. N-mixture models could have great potential in insect population surveys in agriculture and forestry in the future.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"5 ","pages":"Article 100078"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666515824000088/pdfft?md5=c5c2ea2bf48085deee5a20adb1ec3d1b&pid=1-s2.0-S2666515824000088-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140330950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A conserved pheromone receptor in the American and the Asian palm weevils is also activated by host plant volatiles","authors":"Ludvine Brajon ,&nbsp;Arthur Comte ,&nbsp;Rémi Capoduro ,&nbsp;Camille Meslin ,&nbsp;Binu Antony ,&nbsp;Mohammed Ali Al-Saleh ,&nbsp;Arnab Pain ,&nbsp;Emmanuelle Jacquin-Joly ,&nbsp;Nicolas Montagné","doi":"10.1016/j.cris.2024.100090","DOIUrl":"10.1016/j.cris.2024.100090","url":null,"abstract":"<div><p>The evolution of chemosensory receptors is key for the adaptation of animals to their environment. Recent knowledge acquired on the tri-dimensional structure of insect odorant receptors makes it possible to study the link between modifications in the receptor structure and evolution of response spectra in more depth. We investigated this question in palm weevils, several species of which are well-known invasive pests of ornamental or cultivated palm trees worldwide. These insects use aggregation pheromones to gather on their host plants for feeding and reproduction. An odorant receptor detecting the aggregation pheromone components was characterised in the Asian palm weevil <em>Rhynchophorus ferrugineus.</em> This study compared the response spectra of this receptor, <em>Rfer</em>OR1, and its ortholog in the American palm weevil <em>R. palmarum, Rpal</em>OR1. Sequences of these two receptors exhibit more than 70 amino acid differences, but modelling of their 3D structures revealed that their putative binding pockets differ by only three amino acids, suggesting possible tuning conservation. Further functional characterization of <em>Rpal</em>OR1 confirmed this hypothesis, as <em>Rpal</em>OR1 and <em>Rfer</em>OR1 exhibited highly similar responses to coleopteran aggregation pheromones and chemically related molecules. Notably, we showed that <em>R. ferrugineus</em> pheromone compounds strongly activated <em>Rpal</em>OR1, but we did not evidence any response to the <em>R. palmarum</em> pheromone compound rhynchophorol. Moreover, we discovered that several host plant volatiles also activated both pheromone receptors, although with lower sensitivity. This study not only reveals evolutionary conservation of odorant receptor tuning across the two palm weevil species, but also questions the specificity of pheromone detection usually observed in insects.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"6 ","pages":"Article 100090"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666515824000209/pdfft?md5=b2cfe36bb54df917861b70e41c7e5185&pid=1-s2.0-S2666515824000209-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141842815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Idiosyncratic effects of bacterial infection on female fecundity in Drosophila melanogaster","authors":"Aabeer Basu,&nbsp;Vandana Gupta ,&nbsp;Kimaya Tekade ,&nbsp;Nagaraj Guru Prasad","doi":"10.1016/j.cris.2024.100098","DOIUrl":"10.1016/j.cris.2024.100098","url":null,"abstract":"<div><div>Existing theories make different predictions regarding the effect of a pathogenic infection on the host capacity to reproduce. Terminal investment theory suggests that due to the increased risk of mortality, and the associated risk of losing future opportunity to reproduce, infected individuals would increase their investment towards reproduction. Life-history theory posits that due to energetic and resource costs associated with mounting an immune defense, hosts would decrease their investment towards reproduction, and reallocate resources towards defense and survival. Additionally, Somatic damage incurred by the host due to the infection is also expected to compromise the host capacity to reproduce. We explored these possibilities in <em>Drosophila melanogaster</em> females experimentally infected with pathogenic bacteria. We tested if the effect of infection on female fecundity is pathogen specific, determined by infection outcome, and variable between individual infected females. We observed that the mean, population level change in post-infection female fecundity was pathogen specific, but not correlated with mortality risk. Furthermore, infection outcome, i.e., if the infected female died or survived the infection, had no effect on fecundity at this level. At individual resolution, females that died after infection exhibited greater variation in fecundity compared to ones that survived the infection. This increased variation was bidirectional, with some females reproducing in excess while others reproducing less compared to the controls. Altogether, our results suggest that post-infection female fecundity is unlikely to be driven by risk of mortality and is probably determined by the precise physiological changes that an infected female undergoes when infected by a specific pathogen.</div></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"6 ","pages":"Article 100098"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Life history traits of the target pest and transmission routes of the biocide are critical for the success of the boosted Sterile Insect Technique","authors":"Fanny Herbillon ,&nbsp;Esther Gnilane Diouf ,&nbsp;Thierry Brévault ,&nbsp;Marion Haramboure ,&nbsp;Simon Fellous ,&nbsp;Cyril Piou","doi":"10.1016/j.cris.2024.100101","DOIUrl":"10.1016/j.cris.2024.100101","url":null,"abstract":"<div><div>The sterile insect technique (SIT) is an environmentally friendly pest control strategy that consists of inundative releases of mass-reared sterilized males over defined areas, where they mate with wild females, resulting in no offspring and a declining pest population. The technique has effectively managed many crop pests and vector-borne diseases worldwide. A new approach, called boosted SIT, has been proposed to gain efficiency. It combines SIT with the contamination of wild females by sterile males previously coated with biocides. The present study investigated to what extent life history traits of the target pest and biocides can make the boosted SIT more efficient than the classical SIT. We built a generic agent-based model (SIT++) that simulates the population dynamics of insect pests. We then explored parameters related to the mating system, spermatic competition, and fecundity, taking examples from the biology of three well-known Dipteran pest species (<em>Bactrocera dorsalis, Ceratitis capitata,</em> and <em>Glossina palpalis gambiensis</em>)<em>.</em> We found that for boosted SIT to be more beneficial than SIT, horizontal transmission of the biocide to the same generation and to the progeny must be very high. Female fecundity was the other key parameter behind the success of boosted SIT, which was more efficient with insect pests having low reproduction rates. In particular, vertical transmission and late killing time were critical parameters. We also observed that a high level of virulence can help, but only when the boosted SIT is already advantageous; otherwise, it becomes detrimental. The boosted SIT might be advantageous depending on the life history traits of the target pest and transmission routes. For a more extensive exploration, the model can easily be tailored to pests with very different life history traits.</div></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"6 ","pages":"Article 100101"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}