{"title":"Predicting potential habitat distribution of the invasive species Rhynchophorus ferrugineus Olivier in China based on MaxEnt modelling technique and future climate change","authors":"Zhiling Wang, Zhihang Zhuo, Habib Ali, Sumbul Mureed, Quanwei Liu, Xuebin Yang, Danping Xu","doi":"10.1017/s0007485324000336","DOIUrl":"https://doi.org/10.1017/s0007485324000336","url":null,"abstract":"<p>Changes in the distribution of species due to global climate change have a critically significant impact on the increase in the spread of invasive species. An in-depth study of the distribution patterns of invasive species and the factors influencing them can help to better predict and combat invasive alien species. <span>Rhynchophorus ferrugineus</span> Olivier is an invasive species that primarily harms plants of <span>Trachycarpus</span> H. Wendl. The pest invades trees in three main ways: by laying eggs and incubating them in the crown of the plant, on roots at the surface and at the base of the trunk or petiole. Most of the plants in the genus <span>Trachycarpus</span> are taller, and the damage is concentrated in the middle and upper parts of the plant, making control more difficult. In this paper, we combine 19 bioclimatic variables based on the MaxEnt model to project the current and future distributions of <span>R. ferrugineus</span> under three typical emission scenarios (2.6 W m<span>−2</span> (SSP1-2.6), 4.5 W m<span>−2</span> (SSP2-4.5) and 8.5 W m<span>−2</span> (SSP5-8.5)) in the 2050s and 2090s. Among the 19 bioclimatic variables, five variables were screened out by contribution rates, namely annual mean temperature (BIO 1), precipitation of driest quarter (BIO 17), minimum temperature of coldest month (BIO 6), mean diurnal range (BIO 2) and precipitation of wettest quarter (BIO 16). These five variables are key environmental variables that influence habitat suitability for <span>R. ferrugineus</span> and are representative in reflecting its potential habitat. The results showed that <span>R. ferrugineus</span> is now widely distributed in the southeastern coastal area of China (high suitability zone), concentrating in the provinces of Hainan, Guangdong, Fujian, Guangxi and Taiwan. In the future, the area of high and low suitability zones will increase and the area of medium suitability zones will decrease. The area of low suitability zone will still be in the largest proportion. This study aims to provide a theoretical reference for the future control of <span>R. ferrugineus</span> from the perspective of geographic distribution.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142257835","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}
Jesús Alejandro Zamora-Briseño, James M. Schunke, Mario A. Arteaga-Vázquez, José Arredondo, Marco T. Tejeda, José Trinidad Ascencio-Ibáñez, Francisco Díaz-Fleischer
{"title":"Transcriptional response of laboratory-reared Mexican fruit flies (Anastrepha ludens Loew) to desiccation","authors":"Jesús Alejandro Zamora-Briseño, James M. Schunke, Mario A. Arteaga-Vázquez, José Arredondo, Marco T. Tejeda, José Trinidad Ascencio-Ibáñez, Francisco Díaz-Fleischer","doi":"10.1017/s0007485324000373","DOIUrl":"https://doi.org/10.1017/s0007485324000373","url":null,"abstract":"<p>Confronting environments with low relative humidity is one of the main challenges faced by insects with expanding distribution ranges. <span>Anastrepha ludens</span> (the Mexican fruit fly) has evolved to cope with the variable conditions encountered during its lifetime, which allows it to colonise a wide range of environments. However, our understanding of the mechanisms underpinning the ability of this species to confront environments with low relative humidity is incomplete. In this sense, omic approaches such as transcriptomics can be helpful for advancing our knowledge on how this species copes with desiccation stress. Considering this, in this study, we performed transcriptomic analyses to compare the molecular responses of laboratory-reared <span>A. ludens</span> exposed and unexposed to desiccation. Data from the transcriptome analyses indicated that the responses to desiccation are shared by both sexes. We identified the up-regulation of transcripts encoding proteins involved in lipid metabolism and membrane remodelling, as well as proteases and cuticular proteins. Our results provide a framework for understanding the response to desiccation stress in one of the most invasive fruit fly species in the world.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":"155 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142257621","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}
Bo Gao, Yu-Jie Ji, Dan Zhao, Lu Zhang, Han Wu, Yi-Fan Xie, Qiu-Yu Shi, Wei Guo
{"title":"Expression profiling of Spodoptera exigua (Lepidoptera: Noctuidae) microRNAs and microRNA core genes by Bacillus thuringiensis GS57 infection","authors":"Bo Gao, Yu-Jie Ji, Dan Zhao, Lu Zhang, Han Wu, Yi-Fan Xie, Qiu-Yu Shi, Wei Guo","doi":"10.1017/s0007485324000300","DOIUrl":"https://doi.org/10.1017/s0007485324000300","url":null,"abstract":"<p>MicroRNAs (miRNAs) are endogenous, non-coding RNAs, which are functional in a variety of biological processes through post-transcriptional regulation of gene expression. However, the role of miRNAs in the interaction between <span>Bacillus thuringiensis</span> and insects remains unclear. In this study, small RNA libraries were constructed for <span>B. thuringiensis</span>-infected (Bt) and uninfected (CK) <span>Spodoptera exigua</span> larvae (treated with double-distilled water) using Illumina sequencing. Utilising the miRDeep2 and Randfold, a total of 233 known and 726 novel miRNAs were identified, among which 16 up-regulated and 34 down-regulated differentially expressed (DE) miRNAs were identified compared to the CK. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed that potential target genes of DE miRNAs were associated with ABC transporters, fatty acid metabolism and MAPK signalling pathway which are related to the development, reproduction and immunity. Moreover, two miRNA core genes, <span>SeDicer1</span> and <span>SeAgo1</span> were identified. The phylogenetic tree showed that lepidopteran Dicer1 clustered into one branch, with SeDicer1 in the position closest to <span>Spodoptera litura</span> Dicer1. A similar phylogenetic relationship was observed in the Ago1 protein. Expression of <span>SeDicer1</span> increased at 72 h post infection (hpi) with <span>B. thuringiensis</span>; however, expression of <span>SeDicer1</span> and <span>SeAgo1</span> decreased at 96 hpi. The RNAi results showed that the knockdown of <span>SeDicer1</span> directly caused the down-regulation of miRNAs and promoted the mortality of <span>S. exigua</span> infected by <span>B. thuringiensis</span> GS57. In conclusion, our study is crucial to understand the relationship between miRNAs and various biological processes caused by <span>B. thuringiensis</span> infection, and develop an integrated pest management strategy for <span>S. exigua</span> via miRNAs.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":"77 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142257573","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 ‘Goldilocks Grub’: reproductive responses to leafroller host development in Goniozus jacintae, a parasitoid of the light brown apple moth","authors":"Emma Aspin, Michael A. Keller, Ian C. W. Hardy","doi":"10.1017/s0007485324000348","DOIUrl":"https://doi.org/10.1017/s0007485324000348","url":null,"abstract":"<p>Many parasitoids alter their reproductive behaviour in response to the quality of encountered hosts. They make adaptive decisions concerning whether to parasitise a potential host, the number of eggs laid on an accepted host, and the allocation of sex to their offspring. Here we present evidence that <span>Goniozus jacintae</span> Farrugia (Hymenoptera: Bethylidae), a gregarious ectoparasitoid of larval tortricids, adjusts its reproductive response to the size and developmental stage of larvae of the light brown apple moth (LBAM), <span>Epiphyas postvittana</span> (Walker) (Lepidoptera: Tortricidae). <span>Goniozus jacintae</span> parasitises instars 3–6 of LBAM, but most readily parasitises the later, larger, instars. Brood sizes were bigger on larger hosts and brood sex ratios were female biased (proportion of males = 0.23) with extremely low variance (never >1 male in a brood at emergence), perhaps the most precise of all studied bethylids. Host size did not influence brood development time, which averaged 19.64 days, or the body size of male offspring. However, the size of females was positively correlated with host size and negatively correlated with brood size. The sizes of individual males and females were positively related to the average amount of host resource available to individuals within each brood, suggesting that adult body size is affected by scramble competition among feeding larvae. Average brood sizes were: 3rd instar host, 1.3 (SE ± 0.075); 4th instar, 2.8 (SE ± 0.18); 5th instar, 4.7 (SE ± 0.23); 6th instar, 5.4 (SE ± 0.28). The largest brood size observed was 8 individuals (7 females, 1 male) on the 6th instar of LBAM. These results suggest that later instars would give the highest yield to optimise mass-rearing of <span>G. jacintae</span> if used for augmentative biological pest control.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":"32 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198498","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}
Nadja Nara P. Silva, Vanessa R. Carvalho, Carolane B. Silva, João Pedro A. Bomfim, Gabryele S. Ramos, Regiane C. Oliveira
{"title":"First report of the association between Wolbachia and Cotesia flavipes (Hymenoptera: Braconidae): effect on life history parameters of the parasitoid","authors":"Nadja Nara P. Silva, Vanessa R. Carvalho, Carolane B. Silva, João Pedro A. Bomfim, Gabryele S. Ramos, Regiane C. Oliveira","doi":"10.1017/s0007485324000361","DOIUrl":"https://doi.org/10.1017/s0007485324000361","url":null,"abstract":"The symbiosis between microorganisms and host arthropods can cause biological, physiological, and reproductive changes in the host population. The present study aimed to survey facultative symbionts of the genera <jats:italic>Wolbachia</jats:italic>, <jats:italic>Arsenophonus</jats:italic>, <jats:italic>Cardinium</jats:italic>, <jats:italic>Rickettsia</jats:italic>, and <jats:italic>Nosema</jats:italic> in <jats:italic>Cotesia flavipes</jats:italic> (Cameron) (Hymenoptera: Braconidae) and <jats:italic>Diatraea saccharalis</jats:italic> (Fabricius) (Lepidoptera: Crambidae) in the laboratory and evaluate the influence of infection on the fitness of these hosts. For this purpose, 16S rDNA primers were used to detect these facultative symbionts in the host species, and the hosts' biological and morphological features were evaluated for changes resulting from the infection caused by these microorganisms. The bacterial symbionts studied herein were not detected in the <jats:italic>D. saccharalis</jats:italic> samples analysed, but the endosymbiont <jats:italic>Wolbachia</jats:italic> was detected in <jats:italic>C. flavipes</jats:italic> and altered the biological and morphological aspects of this parasitoid insect. The results of this study may help to elucidate the role of <jats:italic>Wolbachia</jats:italic> in maintaining the quality of populations/lineages of <jats:italic>C. flavipes</jats:italic>.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":"448 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225328","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}
Mengjin Liu, Lang Wen, Ben Deng, Yaping Su, Zhenghao Han, Yiling Zhang, Feng Zhu, Qingsheng Qu, Mingze Li, Yujia Fang, Ping Qian, Xudong Tang
{"title":"Translocator protein (TSPO) inhibits Nosema bombycis proliferation in silkworm, Bombyx mori","authors":"Mengjin Liu, Lang Wen, Ben Deng, Yaping Su, Zhenghao Han, Yiling Zhang, Feng Zhu, Qingsheng Qu, Mingze Li, Yujia Fang, Ping Qian, Xudong Tang","doi":"10.1017/s0007485324000385","DOIUrl":"https://doi.org/10.1017/s0007485324000385","url":null,"abstract":"Pebrine disease, caused by <jats:italic>Nosema bombycis</jats:italic> (<jats:italic>Nb</jats:italic>) infection in silkworms, is a severe and long-standing disease that threatens sericulture. As parasitic pathogens, a complex relationship exists between microsporidia and their hosts at the mitochondrial level. Previous studies have found that the translocator protein (TSPO) is involved in various biological functions, such as membrane potential regulation, mitochondrial autophagy, immune responses, calcium ion channel regulation, and cell apoptosis. In the present study, we found that TSPO expression in silkworms (<jats:italic>BmTSPO</jats:italic>) was upregulated following <jats:italic>Nb</jats:italic> infection, leading to an increase in cytoplasmic calcium, adenosine triphosphate, and reactive oxygen species levels. Knockdown and overexpression of <jats:italic>BmTSPO</jats:italic> resulted in the promotion and inhibition of <jats:italic>Nb</jats:italic> proliferation, respectively. We also demonstrated that the overexpression of <jats:italic>BmTSPO</jats:italic> promotes host cell apoptosis and significantly increases the expression of genes involved in the immune deficiency and Janus kinase-signal transducer and the activator of the transcription pathways. These findings suggest that BmTSPO activates the innate immune signalling pathway in silkworms to regulate Nb proliferation. Targeting TSPO represents a promising approach for the development of new treatments for microsporidian infections.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":"27 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198497","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}
Li Xu, Hongyu Liu, Bo Li, Guangling Li, Runqiang Liu, Dongzhi Li
{"title":"SlCarE054 in <i>Spodoptera litura</i> (Lepidoptera: Noctuidae) showed direct metabolic activity to <i>β</i>-cypermethrin with stereoselectivity.","authors":"Li Xu, Hongyu Liu, Bo Li, Guangling Li, Runqiang Liu, Dongzhi Li","doi":"10.1017/S0007485324000282","DOIUrl":"10.1017/S0007485324000282","url":null,"abstract":"<p><p>Carboxylesterases (CarEs) is an important detoxification enzyme system in phase Ⅰ participating in insecticides resistance. In our previous study, <i>SlCarE054,</i> a CarEs gene from lepidoptera class, was screened out to be upregulated in a pyrethroids and organophosphates resistant population. Its overexpression was verified in two field-collected populations of <i>Spodoptera litura</i> (Lepidoptera: Noctuidae) resistant to pyrethroids and organophosphates by qRT-PCR. Spatiotemporal expression results showed that <i>SlCarE054</i> was highly expressed in the pupae stage and the digestive tissue midgut. To further explore its role in pyrethroids and organophosphates resistance, its metabolism activity to insecticides was determined by UPLC. Its recombinant protein showed significant metabolism activity to cyhalothrin and fenvalerate, but not to phoxim or chlorpyrifos. The metabolic activity of SlCarE054 to <i>β</i>-cypermethrin showed stereoselectivity, with higher metabolic activity to <i>θ</i>-cypermethrin than the enantiomer <i>α</i>-cypermethrin. The metabolite of <i>β</i>-cypermethrin was identified as 3-phenoxybenzaldehyde. Further modelling and docking analysis indicated that <i>β</i>-cypermethrin, cyhalothrin and fenvalerate could bind with the catalytic triad of the 3D structure of SlCarE054. The interaction of <i>β</i>-cypermethrin with SlCarE054 also showed the lowest binding energy. Our work provides evidence that <i>SlCarE054</i> play roles in <i>β</i>-cypermethrin resistance in <i>S. litura</i>.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"482-490"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140854307","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}
Seth Kwaku Tsatsu, Guy F Sutton, Leani Serfontein, Pia Addison, Marc De Meyer, Massimiliano Virgilio, Aruna Manrakhan
{"title":"Distribution and host ranges of <i>Ceratitis rosa</i> and <i>Ceratitis quilicii</i> (Diptera: Tephritidae) in South Africa.","authors":"Seth Kwaku Tsatsu, Guy F Sutton, Leani Serfontein, Pia Addison, Marc De Meyer, Massimiliano Virgilio, Aruna Manrakhan","doi":"10.1017/S0007485324000294","DOIUrl":"10.1017/S0007485324000294","url":null,"abstract":"<p><p>Two fruit fly (Diptera: Tephritidae) species of economic importance: <i>Ceratitis rosa</i> Karsch and <i>Ceratitis quilicii</i> De Meyer, Mwatawala & Virgilio are present in South Africa. The two species were considered as one species prior to 2016, but were subsequently separated. In this study, the distribution and abundance of the two species were quantified in seven provinces in South Africa through trapping with Enriched Ginger Oil as an attractant. Trapping was conducted over three seasons across two years (2020 and 2021): late summer, autumn-winter, and spring-early summer. Host ranges of the two species were investigated by fruit sampling in and outside of trapping sites. <i>Ceratitis quilicii</i> was more widely distributed than <i>C. rosa</i> with the latter being recorded in only three north-eastern provinces. There were geographical limits for both species with no records of them in Northern Cape Province. Catches of <i>C. quilicii</i> were higher in summer with average temperatures varying from 15 to 27°C while for <i>C. rosa</i>, catches remained low and consistent between seasons. <i>Ceratitis quilicii</i> catches decreased at lower rates than those of <i>C. rosa</i> at temperatures below 15°C. The two species were reared from 13 plant species from nine families. Four of these hosts were infested by both <i>C. quilicii</i> and <i>C. rosa</i> in the same province where they occurred. Preferred hosts of the two species belonged to the Myrtaceae family. The characterisation of the distribution, abundance and host ranges of these pests will provide a baseline for pest status determination and implementation of management actions.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"503-513"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141179104","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}
Waldenio Antonio de Araújo, Marcos Gino Fernandes, Paulo Eduardo Degrande, Angélica da Silva Salustino, Domingos Francisco Correia Neto, José Bruno Malaquias
{"title":"Exploring the impact of cover crops in integrated pest management: pest and natural enemies population dynamics in no-tillage cotton production.","authors":"Waldenio Antonio de Araújo, Marcos Gino Fernandes, Paulo Eduardo Degrande, Angélica da Silva Salustino, Domingos Francisco Correia Neto, José Bruno Malaquias","doi":"10.1017/S0007485324000452","DOIUrl":"10.1017/S0007485324000452","url":null,"abstract":"<p><p>Conservation agriculture plays an important role in the sustainability of production systems, notably for globally significant crops such as cotton. This study explores the integration of the no-tillage system (NTS) with integrated pest management (IPM) by incorporating cover crops. The aim is to assess the impact of these living or dead covers on the management of insect populations, the indices diversity of phytophagous insects and natural enemies, and to investigate the population fluctuation of these arthropods, considering a variety of crops in the NTS before and after cotton planting. The trial, conducted over two consecutive cropping seasons in Mato Grosso do Sul State, Brazil, employed a randomised block design with four repetitions. The treatments included cover crops with the highest potential for use in the region, such as millet (<i>Pennisetum glaucum glaucum</i> L.), corn (<i>Zea mays</i> L.), brachiaria (<i>Urochloa ruziziensis</i>), black velvet bean (<i>Stizolobium aterrimum</i>), forage sorghum (<i>Sorghum bicolor</i> L.), and white oats (<i>Avena sativa</i> L.) and a mix of white oats with brachiaria. The results indicated that the black velvet bean stands out as the most effective cover crop, providing the best performance in terms of non-preference to the attack of the evaluated pest insects. Conversely, brachiaria proves to be more susceptible to infestations of <i>Dalbulus maidis</i> (DeLong and Wolcott) (Hemiptera: Cicadellidae), and <i>Diabrotica speciosa</i> (Germar, 1824) (Coleoptera: Chrysomelidae). The study underscores the relevance of the judicious choice of cover crops in IPM and in promoting agricultural biodiversity, creating a strategic tool to enhance the sustainability and efficiency of the cotton production system in the context of the NTS.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"581-590"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280561","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":"Critical thermal maxima in neotropical ants at colony, population, and community levels.","authors":"Geraldo Nascimento, Talita Câmara, Xavier Arnan","doi":"10.1017/S0007485324000567","DOIUrl":"10.1017/S0007485324000567","url":null,"abstract":"<p><p>Global warming is exposing many organisms to severe thermal conditions and is having impacts at multiple levels of biological organisation, from individuals to species and beyond. Biotic and abiotic factors can influence organismal thermal tolerance, shaping responses to climate change. In eusocial ants, thermal tolerance can be measured at the colony level (among workers within colonies), the population level (among colonies within species), and the community level (among species). We analysed critical thermal maxima (CT<sub>max</sub>) across these three levels for ants in a semiarid region of northeastern Brazil. We examined the individual and combined effects of phylogeny, body size (BS), and nesting microhabitat on community-level CT<sub>max</sub> and the individual effects of BS on population- and colony-level CT<sub>max</sub>. We sampled 1864 workers from 99 ant colonies across 47 species, for which we characterised CT<sub>max</sub>, nesting microhabitat, BS, and phylogenetic history. Among species, CT<sub>max</sub> ranged from 39.3 to 49.7°C, and community-level differences were best explained by phylogeny and BS. For more than half of the species, CT<sub>max</sub> differed significantly among colonies in a way that was not explained by BS. Notably, there was almost as much variability in CT<sub>max</sub> within colonies as within the entire community. Monomorphic and polymorphic species exhibited similar levels of CT<sub>max</sub> variability within colonies, a pattern not always explained by BS. This vital intra- and inter-colony variability in thermal tolerance is likely allows tropical ant species to better cope with climate change. Our results underscore why ecological research must examine multiple levels of biological organisation.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"571-580"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280560","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}