Chemoecology最新文献

{"title":"Correction to: Mate attraction, chemical defense, and competition avoidance in the parasitoid wasp Leptopilina pacifica","authors":"Lea C. Böttinger, Frederic Hüftlein, Johannes Stökl","doi":"10.1007/s00049-020-00336-y","DOIUrl":"https://doi.org/10.1007/s00049-020-00336-y","url":null,"abstract":"","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 1","pages":"77 - 77"},"PeriodicalIF":1.8,"publicationDate":"2021-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00336-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4718179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rectal gland exudates and emissions of Bactrocera bryoniae: chemical identification, electrophysiological and pheromonal functions","authors":"Saeedeh Noushini,&nbsp;Soo Jean Park,&nbsp;Ian Jamie,&nbsp;Joanne Jamie,&nbsp;Phillip Taylor","doi":"10.1007/s00049-020-00335-z","DOIUrl":"https://doi.org/10.1007/s00049-020-00335-z","url":null,"abstract":"<p><i>Bactrocera bryoniae</i> is a polyphagous and economically significant fruit fly found in Indonesia, Papua New Guinea and Australia. To understand chemical-mediated sexual communication, and the potential for novel pheromone-based attractants for monitoring and mass-trapping of <i>B. bryoniae</i>, rectal gland exudates and emissions from sexually mature males and females were investigated. Gas chromatography–mass spectrometry showed that male rectal glands contained six compounds, of which 1,7-dioxaspiro[5,5]undecane elicited electroantennographic (EAD) and electropalpographic (EPD) responses in both sexes, ethyl 3-acetoxybutanoate elicited EPD responses in both sexes, <i>N</i>-(3-methylbutyl)acetamide elicited EAD response from males and 4-hydroxy-1,7-dioxaspiro[5.5]undecane elicited EAD responses in males and females and EPD responses in females. Female rectal glands contained 23 compounds with the esters ethyl laurate and ethyl myristate as major components. Amongst the female rectal gland constituents, ethyl laurate, ethyl myristate and ethyl palmitate elicited EAD responses in males and females, <i>N</i>-(3-methylbutyl)acetamide elicited EAD responses in males only, (<i>E</i>,<i>E</i>)-2,8-dimethyl-1,7-dioxaspiro[5.5]undecane elicited EAD responses in males and EPD responses in females, and 2,7-dimethyl-1,6-dioxaspiro[4.5]decane, (<i>E</i>,<i>E</i>)-2-ethyl-7-methyl-1,6-dioxaspiro[4.5]decane, (<i>E</i>,<i>E</i>)-2-ethyl-8-methyl-1,7-dioxaspiro[5.5]undecane, (<i>Z</i>,<i>Z</i>)-2,8-dimethyl-1,7-dioxaspiro[5.5]undecane, (<i>E</i>,<i>E</i>)-2-propyl-8-methyl-1,7-dioxaspiro[5.5]undecane and ethyl caprate elicited EPD responses in females only. Y-tube bioassays indicated that male rectal gland extracts and headspace volatiles attracted females and males, while female rectal gland extracts and headspace volatiles only attracted males. The results suggest that ethyl 3-acetoxybutanoate, 1,7-dioxaspiro[5,5]undecane and 4-hydroxy-1,7-dioxaspiro[5.5]undecane may be components of male-produced sex pheromone in <i>B. bryoniae</i> while (<i>E</i>,<i>E</i>)-2,8-dimethyl-1,7-dioxaspiro[5.5]undecane, <i>N</i>-(3-methylbutyl)acetamide, ethyl laurate, ethyl myristate and ethyl palmitate may be components of female-produced sex pheromone. Ethyl 3-acetoxybutanoate, <i>N</i>-(3-methylbutyl) acetamide, 1,7-dioxaspiro[5,5]undecane and 4-hydroxy-1,7-dioxaspiro[5.5]undecane may be components of male aggregation pheromone. These findings contribute to the understanding of pheromone communication in <i>B. bryoniae</i> and provide a foundation for developing pheromone-based monitoring and control methods.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 2","pages":"137 - 148"},"PeriodicalIF":1.8,"publicationDate":"2020-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00335-z","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5093119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The ripeness stage but not the cultivar influences the attraction of Anastrepha obliqua to guava","authors":"Fernando Cortés-Martínez,&nbsp;Leopoldo Cruz-López,&nbsp;Pablo Liedo,&nbsp;Julio C. Rojas","doi":"10.1007/s00049-020-00332-2","DOIUrl":"https://doi.org/10.1007/s00049-020-00332-2","url":null,"abstract":"<p>The West Indian fruit fly, <i>Anastrepha obliqua</i> (Macquart), infests a wide diversity of tropical fruit. Previous studies suggest that <i>A</i>. <i>obliqua</i> adults are attracted to volatile compounds common in different hosts. However, to date, most studies have used ripe fruit for the identification of attractive compounds. In this study, we investigated the attraction of sexually mature <i>A</i>. <i>obliqua</i> females and males to two cultivars and three ripening stages of guava. We also identified the attractive compounds to <i>A</i>. <i>obliqua</i> by combined gas chromatography-electroantennographic detector (GC-EAD) and gas chromatography-mass spectrometry (GC–MS) and evaluated the biological activity of the identified compounds in field-cage tests. We found that individuals of both sexes of <i>A</i>. <i>obliqua</i> showed no preference to the volatiles of either of the two cultivars of guava evaluated. In contrast, flies were more attracted to ripe and half-ripe fruit than to unripe ones. GC-EAD analyses of extracts of ripe “Creole” or “Thai” cultivars identified six compounds that elicited antennal responses by <i>A</i>. <i>obliqua</i> females and males. The compounds were identified by GC–MS as ethyl butyrate, cis-3-hexen-1-ol, ethyl hexanoate, cis-3-hexenyl acetate, ethyl benzoate, and ethyl octanoate. Half-ripe guava emit ethyl butyrate, cis-3-hexen-1-ol, ethyl hexanoate, and cis-3-hexenyl acetate, while only traces of cis-3-hexenyl-acetate were found in unripe guava. Field-cage tests with synthetic standards confirmed that the compounds identified are responsible for the attraction of <i>A</i>. <i>obliqua</i> flies to ripe guava.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 2","pages":"115 - 123"},"PeriodicalIF":1.8,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00332-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4555289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly divergent cuticular hydrocarbon profiles in the cleptobiotic ants of the Ectatomma ruidum species complex","authors":"Kenzy I. Peña-Carrillo,&nbsp;Chantal Poteaux,&nbsp;Chloé Leroy,&nbsp;Rubí N. Meza-Lázaro,&nbsp;Jean-Paul Lachaud,&nbsp;Alejandro Zaldívar-Riverón,&nbsp;Maria Cristina Lorenzi","doi":"10.1007/s00049-020-00334-0","DOIUrl":"https://doi.org/10.1007/s00049-020-00334-0","url":null,"abstract":"<p>In social insects, chemical communication is the main communication mode among colony members, which use the blends of cuticular hydrocarbons as recognition cues to discriminate between nestmates and non-nestmates and to prevent the exploitation of their nest resources by aliens. The aim of this study was to assess the variation of nestmate recognition cues in the ant <i>Ectatomma ruidum</i>, a species complex with a considerably conserved morphology and one of the few ant species where intraspecific thievery, a form of cleptoparasitism, has been reported. We analyzed the cuticular hydrocarbon profiles of ants collected from a number of geographically separated populations and examined DNA sequence data to assess their species identity. We focused on one species of the complex, <i>E. ruidum</i> sp. 3–4, whose species delineation remains controversial. We documented that several quantitative and qualitative traits of the cuticular hydrocarbon profiles varied significantly between populations, indicating that this species harbors more cuticular chemical phenotypic diversity than expected within a single species. In particular, there was a striking divergence among populations in the proportion of methylalkanes, alkenes, alkadienes and odd-chain components, which likely play a major role in nestmate/non-nestmate discrimination, a process which might have been crucial in these cleptobiotic ants. Further investigations are needed to test the hypothesis that biotic pressures, such as the need to discriminate conspecific intruders and limit thievery, could have played an important role in promoting the evolutionary divergence between populations in this ant species complex.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 2","pages":"125 - 135"},"PeriodicalIF":1.8,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00334-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4553363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mate attraction, chemical defense, and competition avoidance in the parasitoid wasp Leptopilina pacifica","authors":"Lea C. Böttinger,&nbsp;Frederic Hüftlein,&nbsp;Johannes Stökl","doi":"10.1007/s00049-020-00331-3","DOIUrl":"https://doi.org/10.1007/s00049-020-00331-3","url":null,"abstract":"<p>A major hypothesis for the evolution of chemical signals is that pheromones arise from non-communicative precursor compounds. However, data supporting this hypothesis are rare, primarily because the original functions of the antecedent compounds often have been lost. A notable exception, however, is the parasitoid wasp species <i>Leptopilina heterotoma</i>, whose compound (?)-iridomyrmecin is used as a defensive secretion, a cue for females to avoid competition with con- and hetero-specific females, and as the primary component of the females’ sex pheromone. To better understand the evolution of sex pheromones from defensive compounds, we examined the chemical ecology of <i>L. pacifica</i>, the sister species of <i>L. heterotoma</i>. Here, we show that <i>L. pacifica</i> also produces a defensive secretion containing a species-specific mixture of mostly iridoid compounds. However, the composition of the secretion is more complex than in <i>L. heterotoma</i>, and iridomyrmecin is only a minor component. Moreover, in contrast to <i>L. heterotoma</i>, conspecific female competitors were not avoided by female subjects, and a role of the iridoids in the female sex pheromone of <i>L. pacifica</i> can be excluded, as only the females’ cuticular hydrocarbons (CHCs) resulted in the elicitation of courtship by males. Although closely related, the two sister species show substantial differences in the use of the defensive secretion for communicative purposes. Variation in pheromone usage in this genus still presents a conundrum, highlighting the need for additional studies to understand the selective forces shaping the evolution of pheromone composition.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 2","pages":"101 - 114"},"PeriodicalIF":1.8,"publicationDate":"2020-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00331-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4507995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Raspberry ketone supplements provided to immature male Queensland fruit fly, Bactrocera tryoni (Froggatt), increase the amount of volatiles in rectal glands","authors":"Humayra Akter,&nbsp;Jeanneth Pérez,&nbsp;Soo Jean Park","doi":"10.1007/s00049-020-00333-1","DOIUrl":"https://doi.org/10.1007/s00049-020-00333-1","url":null,"abstract":"<p>Raspberry ketone (RK) supplements provided together with sugar and yeast hydrolysate accelerate sexual maturation and increase mating success of Queensland fruit fly (‘Qfly’) males. However, the mechanisms underlying this enhanced mating ability are currently unknown. Volatiles are an important element of Qfly sexual calling and courtship and so changes in volatiles quantity or quality may be involved, and the present study investigated this possibility. Flies were fed a diet of sugar only (S) or yeast hydrolysate mixed with sugar (YH?+?S) (1:3) that contained 0% RK (control) and 5% RK (treated) for 2?days after emergence. Volatile compounds were extracted from rectal glands when flies were 6, 8, 10, 20, and 30?days old. Males fed on RK exhibited a significant increase in total volatile production in rectal glands compared to RK-unfed males (control). Males fed on RK with YH?+?S produced significantly higher amount of volatiles than males fed on RK with sugar only. Males fed on YH?+?S diet produced more volatiles in the presence of RK compared to males fed on YH?+?S diet only. Two compounds, <i>N</i>-(3-methylbutyl)acetamide and <i>N</i>-(3-methylbutyl)propanamide were dominant in endogenously produced rectal gland volatiles comprising ca. more than 90% of the total amount in both RK-fed and control males. Considering exogenous and endogenous compounds together, unaltered RK was dominant along with these two endogenous compounds in RK-fed males in rectal gland until 30?days of age in both diet groups.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 2","pages":"89 - 99"},"PeriodicalIF":1.8,"publicationDate":"2020-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00333-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4474086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A synergism between dimethyl trisulfide and methyl thiolacetate in attracting carrion-frequenting beetles demonstrated by use of a chemically-supplemented minimal trap","authors":"Stephen T. Trumbo,&nbsp;John A. Dicapua III","doi":"10.1007/s00049-020-00330-4","DOIUrl":"https://doi.org/10.1007/s00049-020-00330-4","url":null,"abstract":"<p>Volatile organic compounds derived from microbes recruit insects to carrion, shaping community assembly and ecological succession. The importance of individual volatiles and interactions between volatiles are difficult to assess in the field because of (1) the myriad compounds from decomposing animals and (2) the likelihood that complex volatile blends are important for the final approach to carrion. On the assumption that searching carrion-frequenting beetles may use simpler cues to orient at a distance, we employed a chemically-supplemented minimal trap that uses test chemicals associated with active decay to attract from a distance and a minimal carrion bait (a small fresh mouse carcass) to induce trap entry. Traps supplemented with both methyl thiolacetate (MeSAc) and dimethyl trisulfide (DMTS) attracted greater numbers of beetles including adult silphids (<i>Necrophila americana</i> and <i>Oiceoptoma noveboracense</i>) and the histerid <i>Euspilotus assimilis</i> than the combined totals of DMTS-only and MeSAc-only traps, demonstrating a synergism. The attraction of larval <i>Necrophila americana</i> to traps left in the field for less than 24?h suggests that larvae move between carrion sources. The use of such species for forensic applications requires caution.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 2","pages":"79 - 87"},"PeriodicalIF":1.8,"publicationDate":"2020-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00330-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4845076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparison of the direct and indirect defence abilities of cultivated maize versus perennial and annual teosintes","authors":"Natalia Naranjo-Guevara,&nbsp;Maria Fernanda Gomes Villalba Peñaflor,&nbsp;Diego Bastos Silva,&nbsp;José Mauricio Simões Bento","doi":"10.1007/s00049-020-00329-x","DOIUrl":"https://doi.org/10.1007/s00049-020-00329-x","url":null,"abstract":"<p>The transition from a perennial to an annual life cycle, as well as domestication, are expected to increase plant growth and reproduction at the same time that anti-herbivore defences are reduced. Here, we investigated the effects of the life-history transition (the perennial teosinte <i>Zea diploperennis</i> to the annual teosinte <i>Z. mays</i> ssp. <i>mexicana</i>) and domestication of <i>Zea</i> (annual teosinte to the modern maize <i>Z. mays</i> ssp. <i>mays</i>) on direct and indirect defences against the fall armyworm <i>Spodoptera frugiperda</i>. The direct defence of <i>Zea</i> was assessed by larval survival and nutritional indices based on food intake and utilisation. Indirect defence was measured in terms of the olfactory preference of the night-active predatory earwig <i>Doru luteipes</i> for nocturnal herbivore-induced plant volatiles (HIPVs) from the teosintes and maize. Larval growth and survival were reduced on teosintes relative to maize. Whilst larvae fed on perennial teosinte had lower food intake indices, those on annual teosinte showed lower food utilisation indices relative to maize. The earwig preferred HIPVs emitted by teosintes over those by maize, but it did not discriminate between odours of herbivore-damaged annual and perennial teosinte. The nocturnal HIPV blend from maize contained the lowest total amount of fatty acid derivatives, while it had higher total amounts of terpenes compared to teosintes. Our study shows that the teosintes are better defended than maize in terms of direct and indirect defences; however, the perennial teosinte have stronger direct defences against the fall armyworm than the annual teosinte.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 1","pages":"63 - 74"},"PeriodicalIF":1.8,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00329-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4804126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Behavioral response of the greenhouse whitefly (Trialeurodes vaporariorum) to plant volatiles of Ocimum basilicum and Tagetes minuta","authors":"Francis Kiamba Matu,&nbsp;Lucy Kananu Murungi,&nbsp;Samira Mohamed,&nbsp;Emilie Deletre","doi":"10.1007/s00049-020-00327-z","DOIUrl":"https://doi.org/10.1007/s00049-020-00327-z","url":null,"abstract":"<p>The use of chemical pesticides as a main pest control strategy has been highly criticised due to environmental pollution and negative effects on natural enemies of pests. In modern farming, it is essential to implement integrated pest management approaches that seek to control insect pests without causing environmental damage, e.g. the use of companion plants. Basil and Mexican marigold are often used as companion plants to attract greenhouse whiteflies, hence reducing damage to solanaceous crops, but the mechanism and role of volatile cues in crop protection strategies are unknown. This study found that both flowering basil and marigold were preferred to tomato by the greenhouse whitefly (<i>Trialeurodes vaporariorum</i>) in Y-tube olfactometer bioassays. PCA revealed that some volatiles were more correlated to one stage than to another. The dominant volatile constituents of Mexican marigold are limonene, dihydrotagetone, (<i>Z</i>)-β-ocimene, α-pinene, (<i>Z</i>)-3-hexenyl acetate, and those from basil are linalool, 1,8-cineole, eugenol and β-elemene. Among these dominant compounds, 1,8-cineole and (<i>Z</i>)-3-hexenyl acetate elicited strong attraction in greenhouse whitefly at 0.01%, whereas (<i>Z</i>)-β-ocimene and linalool elicited strong repellence at 0.1% and 1% dosages. This suggested that the basil flowering stage attraction is due to 1,8-cineole. These volatiles demonstrated potential as lures or bio-repellents and could be used in a “push–pull” semiochemical approach for greenhouse whitefly management.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 1","pages":"47 - 62"},"PeriodicalIF":1.8,"publicationDate":"2020-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00327-z","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4664884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: Electrophysiological and behavioral responses Dendroctonus frontalis and D. terebrans (Coleoptera: Curculionidae) to resin odors of host pines (Pinus spp.)","authors":"Holly L. Munro,&nbsp;Kamal J. K. Gandhi,&nbsp;Brittany F. Barnes,&nbsp;Cristian R. Montes,&nbsp;John T. Nowak,&nbsp;William P. Shepherd,&nbsp;Caterina Villari,&nbsp;Brian T. Sullivan","doi":"10.1007/s00049-020-00328-y","DOIUrl":"https://doi.org/10.1007/s00049-020-00328-y","url":null,"abstract":"","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"31 1","pages":"75 - 75"},"PeriodicalIF":1.8,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00328-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4882928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}