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  • 1
    Online Resource
    Online Resource
    Cambridge :Cambridge University Press,
    Keywords: Cuticle. ; Electronic books.
    Description / Table of Contents: A critical review of hydrocarbons present on the cuticle of insects and other arthropods for researchers in biology, entomology and chemical ecology. Emphasizes the role of insect hydrocarbons in chemical communication, in species and sex-recognition, and especially among social insects, where hydrocarbons function extensively in recognition processes.
    Type of Medium: Online Resource
    Pages: 1 online resource (506 pages)
    Edition: 1st ed.
    ISBN: 9780511714641
    DDC: 595.7/01
    Language: English
    Note: Cover -- Half-title -- Title -- Copyright -- Contents -- Contributors -- Foreword -- Acknowledgments -- Part I Chemistry, Biochemistry, and Physiology -- 1 Introduction: history and overview of insect hydrocarbons -- References -- 2 Structure and analysis of insect hydrocarbons -- Types of hydrocarbons -- n-Alkanes -- Unsaturated hydrocarbons -- Methyl-branched alkanes -- Analytical techniques -- Characterization of hydrocarbons -- Mass spectral fragmentation patterns -- Positions of double bonds -- Near-infrared spectroscopy (NIRS) in hydrocarbon analysis -- Distribution of hydrocarbons on the cuticle -- Unanswered questions -- References -- 3 Biosynthesis of cuticular hydrocarbons -- Site of cuticular hydrocarbon biosynthesis -- Biosynthetic pathways for hydrocarbons -- Mechanism of hydrocarbon formation -- Chain length specificity -- Methyl-branched hydrocarbon biosynthesis -- Methyl-branched fatty acids -- Propionate metabolism in insects -- Ecdysteroid regulation of hydrocarbon production in the housefly -- Metabolism of cuticular hydrocarbons -- Developmental regulation of hydrocarbon synthesis and deposition -- References -- 4 Molecular biology and genetics of hydrocarbon production -- Fatty acid synthetase -- Desaturases -- Comparison of Musca and Drosophila desaturases -- Drosophila desaturases genetic studies -- Role of Desat1 -- Role of Desat2 -- Expression of desat1 and desat2 in the Tai strain -- Role of DesatF -- Elongases -- Elongases involved in male 7-T/7-P ratio -- Elongases involved in female long HC synthesis -- cis-vaccenyl acetate (cVA) biosynthesis -- Are other genes involved in the HC synthesis pathway? -- Final steps involved in HC formation -- Evolution of HC synthesis enzymes in Drosophila -- First desaturation -- Second desaturation -- Evolution of HC synthesis enzymes in insects -- References. , 5 Site of synthesis, mechanism of transport and selective deposition of hydrocarbons -- Site of synthesis -- Transport of hydrocarbons with lipophorin -- Social insects, hydrocarbon transport and deposition -- Role of endocrine and physiological factors in regulation of biosynthesis and transport in social insects -- Site of synthesis -- Role of various glands in hydrocarbon production and storage -- Role of the postpharyngeal gland in ants -- Conclusion -- References -- 6 Cuticular lipids and water balance -- Is cuticular permeability important? Cuticular and respiratory water-loss -- Correlations between cuticular lipids and water-loss rates -- The phase transition model for cuticular permeability -- Experimental tests of the phase transition model -- Lipid composition and physical properties: size doesn't matter (much) -- Theoretical consideration of the transition phenomenon -- Are cuticular lipids the entire story? Melanization and water-loss -- Summary -- Acknowledgments -- References -- 7 Chemical taxonomy with hydrocarbons -- Chemotaxonomy and sex pheromones -- Pheromone polymorphism in the Sophophora subgroup (Table 7.1) -- D. melanogaster and d. simulans polymorphism -- D. santomea and d. yakuba polymorphism -- Pheromone polymorphism in d. elegans -- Pheromone polymorphism in the Drosophila subgroup (Table 1) -- D. mojavensis cluster -- D. paulistorum -- Pheromone polymorphism in the adiastola subgroup -- Chemotaxonomy and insects of economic importance -- Food processing and agronomy -- Orthoptera, Mantodea (Table 7.2) -- Homoptera (Table 7.2) -- Coleoptera (Table 7.3) -- Other taxa -- Urban pests -- Insects of medical importance -- Nematocera (Diptera) suborder -- Diptera - Brachycera Suborder (Table 7.5) -- Hemiptera -- Hymenoptera -- Non-insects -- Chemotaxonomy, biodiversity and bioindicators -- Lepidoptera -- Coleoptera -- Dictyoptera. , Social Hymenopterans -- Isoptera -- Chemotaxonomy, phylogeny and speciation -- Conclusion -- References -- 8 Chemical synthesis of insect cuticular hydrocarbons -- Preamble: convenient methods of purification of synthesized cuticular hydrocarbons -- Methods of synthesizing various classes of cuticular hydrocarbons -- References -- 9 Oxygenated derivatives of hydrocarbons -- Occurrence and structural identification -- Secondary alcohols -- Secondary alcohol esters -- Diols -- Methyl-branched alcohols -- Ethers -- Epoxides -- Epoxy derivatives of mono-alkenes -- Epoxy derivatives of di-alkenes -- Epoxy derivatives of di-alkenes -- Ketones -- Ketones as glandular lipids -- Ketones as glandular lipids -- Methyl-branched ketones -- Keto-alcohols, keto-aldehydes and keto-wax esters -- Function of oxygenated hydrocarbons -- Protective water barrier -- Chemical communication -- Ketones and secondary alcohols -- Methyl-branched ketones (German cockroach pheromone) -- Epoxides -- Pheromone databases -- References -- Part II Chemical Communication -- 10 Perception and olfaction of cuticular compounds -- Tip-recording method for electrophysiological study of chemosensory sensilla -- Functional searching for the ant CHC sensillum by electrophysiological method -- Perireceptor events and role of lipophilic ligand-carrier proteins -- Ligand binding of lipophilic ligand carrier proteins -- Chemoreception of cuticular hydrocarbons and aggressive behavior expression -- References -- 11 Nestmate recognition in social insects and the role of hydrocarbons -- Evidence for hydrocarbons as nestmate recognition cues -- Social parasites -- Correlative evidence and removal-and-replacement experiments -- Direct evidence for cuticular hydrocarbons -- Models of decision rules in nestmate recognition -- The early models -- The acceptance threshold. , Plasticity of the acceptance threshold -- The referents and gestalt odor -- The neural mechanism and a new model -- Synthesis -- Acknowledgments -- References -- 12 Cuticular hydrocarbon cues in the formation and maintenance of insect social groups -- References -- 13 Hydrocarbon profiles indicate fertility and dominance status in ant, bee, and wasp colonies -- The importance of chemical communication in the regulation of reproduction in social insects -- Communication of reproductive status in social insects -- Hydrocarbon profiles and reproductive status -- Ants -- Species with workers having a limited reproductive potential -- Species with queens and workers having a strong reproductive potential -- Pure gamergate species -- Wasps -- Bees -- Hydrocarbon profiles and egg discrimination -- Ants -- Camponotus floridanus -- Dinoponera quadriceps -- Pachycondyla inversa -- Myrmecia gulosa and Aphaenogaster cockerelli -- Other ant species -- Wasps -- Polistes dominulus -- Bees: other potential egg-discrimination mechanisms -- Hydrocarbon profiles and social hierarchy -- Profile discrimination and worker reproduction -- Recognition of hydrocarbon profiles relating to fertility -- Effects on worker reproduction -- Patterns of profile variation -- Quantitative versus qualitative differences -- Ants -- Wasps -- Single versus multiple compounds and compound classes -- Cuticular profiles versus egg profiles -- Conclusions -- References -- 14 Chemical deception/mimicry using cuticular hydrocarbons -- Plant-insect interactions -- Non-social arthropod interactions -- Non-social arthropod-social insect interactions (Table 14.1) -- Honeybee parasites -- Termitophiles -- Myrmecophiles -- Intraspecific mimicry in insects -- Artificially mixed social insect colonies -- Interactions among social insects. , Interactions among social insects belonging to different orders -- Interactions among social insects belonging to different genera -- Interactions among social insects within the same genus -- Interaction among social insects within the same species -- Concluding remarks -- Acknowledgments -- References -- 15 Behavioral and evolutionary roles of cuticular hydrocarbons in Diptera -- Courtship and mating -- Drosophilidae -- D. melanogaster and D. simulans - major CHC components -- D. melanogaster and D. simulans - minor CHC components -- Calliphoridae -- Ostridae -- Muscidae -- Glossinidae -- Evolutionary and neurobiological considerations -- Male courtship of other males and of immature flies -- Intra-individual CHC variability -- Cucilidae -- Calliphoridae -- Muscidae -- Drosophilidae -- Fitness effects -- Interspecific variation and evolutionary effects -- Future prospects -- References -- 16 Contact recognition pheromones in spiders and scorpions -- Contact recognition pheromones in spiders -- Identification of silk and cuticle lipids -- Contact recognition pheromones and sexual behavior in spiders -- Contact recognition pheromones and social behavior in spiders -- Contact recognition pheromones in scorpions -- Chemosensory experimentation and cuticular compounds of Smeringerus mesaensis -- Identification and assay of chemical recognition signals in Hadrurus arizonensis -- Conclusion on the role of the determined mixtures for the two scorpion species -- Conclusion -- Acknowledgments -- References -- 17 Hydrocarbons as contact pheromones of longhorned beetles (Coleoptera: Cerambycidae) -- Contact pheromones in the mating systems of longhorned beetles -- The use of bioassays to study contact chemoreception of cerambycids -- Sampling cuticular hydrocarbons -- Qualitative and quantitative differences in hydrocarbon profiles of the sexes. , Contact pheromones as single compounds or blends.
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  • 2
    Book
    Book
    London : ISTE | Hoboken, New Jersey : Wiley
    Keywords: Chemical ecology ; Chemical ecology ; Aufsatzsammlung ; Ökologische Chemie
    Type of Medium: Book
    Pages: xvi, 222 Seiten , Illustrationen, Diagramme , 25 cm
    ISBN: 9781848219243
    Series Statement: Ecological science series
    DDC: 577/.14
    RVK:
    Language: English
    Note: Literaturangaben , Foreword / Stéphanie Thiébault and Françoise Gaill -- Introduction / Anne-Geneviève Bagnères and Martine Hossaert-McKey -- Biodiversity and chemical mediation / Bertrand Schatz, Doyle McKey and Thierry Pérez -- Chemical ecology : an integrative and experimental science / Anne-Marie Cortesero, Magali Proffit, Christophe Duplais and Frédérique Viard -- Scents in the social life of non-human and human primates / Marie Charpentier, Guillaume Odonne and Benoist Schaal -- Microbiota and chemical ecology / Soizic Prado, Catherine Leblanc and Sylvie Rebuffat -- From chemical ecology to ecogeochemistry / Catherine Fernandez, Virginie Baldy and Nadine Le Bris -- Omics in chemical ecology / Sylvie Baudino, Christophe Lucas and Carole Smadja -- Metabolomic contributions to chemical ecology / Philippe Potin, Florence Nicolè and Olivier P. Thomas -- Chemical, biological and computational tools in chemical ecology / Nicolas Barthès, Jean-Claude Caissard, Jérémy Just and Xavier Fernandez -- Academic and economic values of understanding chemical communication / Bernard Banaigs, Ali Al Mourabit, Guillaume Clave and Claude Grison -- Conclusion / Martine Hossaert-McKey and Anne-Geneviève Bagnères
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  • 3
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Chemical ecology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (243 pages)
    Edition: 1st ed.
    ISBN: 9781119330486
    DDC: 577/.14
    Language: English
    Note: Cover -- Title Page -- Copyright -- Contents -- Foreword -- Introduction -- 1. Biodiversity and Chemical Mediation -- 1.1. Systematic and integrative taxonomy from chemical ecology -- 1.2. Scent communication between sexual partners -- 1.3. Scent communication between species -- 1.4. Chemical mimicry, to enhance reproduction -- 1.5. A dialog that sometimes evolves into an interaction network -- 1.6. Conclusions -- 1.7. Bibliography -- 2. Chemical Ecology: An Integrative and Experimental Science -- 2.1. Semiochemicals -- 2.2. Chemical ecology in multitrophic networks and co-evolution between species -- 2.3. Contribution of chemical ecology to the study of tropical plant diversification -- 2.4. When chemical ecology sheds light on the process of biological invasion - an example demonstrating integration between chemistry and ecology -- 2.5. Protection is in the air: how plants defend themselves against phytophagous insects through VOC emissions -- 2.6. Conclusions -- 2.7. Bibliography -- 3. Scents in the Social Life of Non-Human and Human Primates -- 3.1. Primate societies and their complex systems of communication -- 3.2. The role of odors in human communication -- 3.2.1. Human order convey a large panel of cues -- 3.2.2. Body orders reflect internal states -- 3.2.3. What are the functions of social smells in human daily life? -- 3.2.4. Human pheromones, fact or fiction? -- 3.3. The senses of smell and taste in the search for food and remedies -- 3.3.1. Interactions between senses and food in primates -- 3.3.2. Senses and self-medication in animals -- 3.3.3. Senses in human therapies -- 3.3.4. An evolutionary conception of the link between senses and health -- 3.4. Conclusions - the adaptive functions of the sense of smell in "microsmatic" species -- 3.5. Bibliography -- 4. Microbiota and Chemical Ecology. , 4.1. The protagonist microorganisms of chemical ecology -- 4.2. Strategies for the study of microbiota -- 4.2.1. How should the microbiota be characterized? -- 4.2.2. What tools are available to help understand the roles of the microbiota? -- 4.3. The molecular dialog of microorganisms -- 4.3.1. Language and social life of microorganisms -- 4.3.2. The AMPs, main actors in the equilibrium of bacterial communities -- 4.3.3. Fungi and bacteria communicate to better help each other -- 4.3.4. When helping each other degenerates into chemical warfare between bacteria and fungi -- 4.3.5. The Trichoderma fungi: heavy artillery against pathogenic fungi -- 4.4. Chemical communication between microorganisms and their hosts -- 4.4.1. Plant-bacteria relationships: essential interactions with different partners -- 4.4.2. Plants also establish intimate relations with fungi -- 4.4.3. Mutualist actinobacteria provide care to insects -- 4.4.4. Chemical communication between microorganisms and their host in the environment -- 4.5. Regulations and evolution of the interactions in changing ecosystems and environments -- 4.5.1. Contribution of chemical ecology to the understanding of biosynthesis mechanisms of chemical mediators -- 4.5.2. Metabolic networks: new tools for studying the evolution of host/microbiota interactions -- 4.6. Conclusions - from chemical ecology to future applications: impacts of the study of the microbiota -- 4.7. Bibliography -- 5. From Chemical Ecologyto Ecogeochemistry -- 5.1. Balance between primary and secondary metabolism -- 5.2. Role of secondary metabolites in biotic interactions and community structure -- 5.3. Secondary metabolites and ecosystem functioning: plant soil relation - brown food chain -- 5.4. Integration of biotic and abiotic dynamics: benthic marine microhabitats -- 5.5. Conclusions -- 5.6. Bibliography. , 6. Omics in Chemical Ecology -- 6.1. Introduction: the different "omic" technologies -- 6.2. From "omics" to signals: identifying new active molecules -- 6.3. From "omics" to the ecology of communities: identifying chemical interactions of organisms in their environment -- 6.4. From "omics" to molecular bases: revealing the genetic and molecular bases of chemical interactions -- 6.5. From "omics" to physiology: characterizing the modes of production and the modes of reception of active molecules -- 6.6. From "omics" to the role of environment: understanding the impact of biotic and abiotic factors on interactions -- 6.7. From "omics" to evolution: understanding and predicting the adaptive value of chemical interactions -- 6.8. Conclusions and perspectives -- 6.9. Bibliography -- 7. Metabolomic Contributions to Chemical Ecology -- 7.1. Definition of metabolomics -- 7.2. Different strategies of the metabolomic approaches -- 7.3. The different steps for conducting a metabolomic study -- 7.3.1. Experimental design and sampling -- 7.3.2. Analytical approaches -- 7.3.3. Data processing -- 7.4. Applications of metabolomics -- 7.4.1. Chemical biodiversity and chemotaxonomy -- 7.4.2. Study of the regulation and evolution of metabolic/ biosynthesis pathways -- 7.4.3. Contributions to functional ecology -- 7.4.4. Application of metabolomics to the study of environmental disturbances -- 7.5. Conclusions -- 7.6. Bibliography -- 8. Chemical, Biological and Computational Tools in Chemical Ecology -- 8.1. Chemical tools -- 8.1.1. Analytical tools of chromatography -- 8.1.2. Analytical approach by nuclear magnetic resonance -- 8.1.3. Secondary metabolite imagery techniques -- 8.2. Sequencing tools -- 8.2.1. Principles, strengths and limitations of NGS -- 8.2.2. Major domains of NGS applications -- 8.3. Databases: biodiversity in silico. , 8.3.1. Databases of chemical compounds and general ecology -- 8.3.2. Databases for the omics that can be used in chemical ecology -- 8.4. Conclusions -- 8.5. Bibliography -- 9. Academic and Economic Values of Understanding Chemical Communication -- 9.1. Nature as a model -- 9.2. Nature as a model for development of new molecules of interest -- 9.2.1. From chemical mediators to new bioactive structural archetypes -- 9.2.2. From chemical mediators to new bioactive structural archetypes -- 9.2.3. Chemical mediators and ligand/receptor interactions: to the discovery of new cellular receptors and biochemical tools -- 9.3. Chemical ecology and sustainable development -- 9.3.1. Bio-control -- 9.3.2. Bio-inspired chemistry and remedial phytotechnologies -- 9.4. Conclusions -- 9.5. Bibliography -- Conclusion: Looking Forward: the Chemical Ecology of Tomorrow -- Glossary -- List of Authors -- Index -- EULA.
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  • 4
    ISSN: 1573-1561
    Keywords: Interspecific recognition ; Isoptera ; termites ; Reticulitermes ; cuticular hydrocarbons ; aggression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Two species of termites,Reticulitermes (lucifugus) grassei andR. (l.) banyulensis, show a high degree of aggressivity toward each other. The epicuticular signature, recognized by contact, can be extracted using organic solvents, and the removal of the signature abolished all types of aggressive behavior. The signature can be transferred to lures, where it triggers interspecies aggression. It was found to be mainly present in the apolar fraction of the cuticular extracts, which contained only hydrocarbons, are determined by GC/MS techniques. Chemical recognition contributes towards isolation of the two species belonging to theR. lucifugus complex.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 17 (1991), S. 1633-1639 
    ISSN: 1573-1561
    Keywords: Exocrine secretion ; Dufour gland ; Dorylus (Anomma) molestus ; Dorylus (Anomma) nigricans ; Dorylinae ; Formicidae ; Hymenoptera
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The Dufour glands of workers ofDorylus (Anomma) molestus contain chiefly linear alkenes and alkanes, with (Z)-9-tricosene and tricosane representing over 70%. The glands are relatively small with some indication of very small (nanogram or less) amounts of dihydrofarnesol. Minima, medium, and major workers ofDorylus (Anomma) nigricans contain a similar spectrum of compounds.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 17 (1991), S. 1641-1664 
    ISSN: 1573-1561
    Keywords: Formicinae ; mimicry ; artificial mixed colonies ; cuticular hydrocarbons ; colony recognition ; ants ; Hymenoptera ; Formicidae ; Formica selysi ; Monica rubida
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The cuticular hydrocarbons ofFormica selysi (Formicinae) andMonica rubida (Myrmicinae) reared in single species and in mixed species colonies were determined using gas chromatography (GC) and GC-mass spectrometry. In colonies containing both species, each species modified its species-specific recognition odor. This odor is composed, at least partly, of cuticular hydrocarbons. The cuticular hydrocarbons ofM. rubida consist only of saturated alkanes (n-alkanes and branched alkanes). InF. selysi the mixture also contains unsaturated compounds (monoenes and dienes). In hetero-specific colonies, a new chemical signature developed. This signature resulted from qualitative and quantitative changes in the spectrum of hydrocarbons produced by each species and permitted the two species to inhabit the same nest without displaying interspecific aggression. The readjustment seemed to be more an active synthesis or an active transfer than simply a passive transfer from one species to the other. This may imply that the ants synthesized some components of the hydrocarbon signature of the other species. These synthesizing processes may be activated under particular social environmental conditions.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-1561
    Keywords: Parasites ; volatile signals ; synomone ; host detection ; Hymenoptera ; Eulophidae ; Diglyphus isaea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Diglyphus isaea Walker is a larval ectoparasitoid used in biological pest control against the American serpentine leaf minerLiriomyza trifolii Burgess. We studied the parasitoid's host searching behavior, using olfactometric methods. Our data show that the parasitoids locate host larvae (a leafmining dipteran) on the basis of volatile signals released by the plant-host complex. FemaleD. isaea are strongly attracted to the odors arising from damaged bean plants, whereas they show practically no response to intact plants. The results of our chemical analyses showed that about 15 components were present, two of which,cis-3-hexen-1-ol and 4-hydroxy-4-methyl-2-pentanone, were present in significantly larger quantities in the leaf extracts from mined or damaged bean plants than in those from healthy plants. The damage inflicted by the host larvae on these plants triggers the release of larger amounts of these substances, which probably lead the parasites to their hosts. The compounds thus act as synomones.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 16 (1990), S. 3263-3276 
    ISSN: 1573-1561
    Keywords: Cuticular hydrocarbons ; insect cuticle ; chemotaxonomy ; gas chromatography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Cuticular hydrocarbons from tiny pieces of insect cuticle can be analyzed directly by gas chromatography without solvent. The cuticle, sealed in a glass capillary, is introduced into the heated injector area of a gas Chromatograph, and the glass capillary crushed after heating for 4 min. Linked gas chromatography-mass spectrometry can be performed on selected parts of individual insects, such as an antenna, leg, or abdominal sclerite, to give qualitative and quantitative analysis of the substances on a small area of the body.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1573-1561
    Keywords: Cuticular hydrocarbons ; chemical signature ; postpharyngeal glands ; nestmate recognition ; Hymenoptera ; ant ; Camponotus vagus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The aim of the present study was to investigate the regulation and the homogeneity of the chemical signature between members ofCamponotus vagus after experimentally changing the cuticular chemical signature by topically applying hydrocarbons. Topical application of pentane (solvent) to the cuticle of isolated workers led to a significant decrease in the quantities of the cuticular hydrocarbons measured within 3 hr, followed by an increase within the following 3 hr and a period of relative stability from 9 hr to 14 days. On the other hand, after topical application to isolated workers ofn-tetracosane, a hydrocarbon existing only in trace quantity in this species, the quantity of this hydrocarbon measured over time in the epicuticular wax tended to level out at about 14 days after treatment. In contrast, topically applied (Z)-9-tricosene, an unsaturated hydrocarbon not normally synthesized by this species, decreased dramatically within a few hours and had completely disappeared within 14 days. (Z)-9-Tricosene applied to one member of a group was present in the postpharyngeal glands of the other members from 30 min to seven days of cohabitation. The highest levels were recorded in all six workers in each group after one day. GC-MS analyses showed that (Z)-9-tricosene was present in the cuticles of some untreated workers only after four and seven days of cohabitation with a treated worker. These data suggest: (1) that the deposited (Z)-9-tricosene decreased very quickly on the cuticle of the treated worker, although the total amount was spread over the cuticle and postpharyngeal gland and (2) that it was absorbed by the nontreated workers via the postpharyngeal glands during licking or grooming activities and reincorporated into the cuticle at four and seven days. When the treated worker was separated from the other ants by a wire mesh, (Z)-9-tricosene was detected neither in the cuticle nor in the postpharyngeal gland of nontreated workers.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 23 (1997), S. 747-758 
    ISSN: 1573-1561
    Keywords: Bioassay ; sexual behavior ; chemical signals ; communication ; spiders ; Tegenaria domestica ; Tegenaria pagana
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Bioassays in two sympatric spider species, Tegenaria domestica and T. pagana, demonstrate that the total female chemical extract, and in particular the polar fraction, are involved in the sexual behavior of males and reproductive isolation mechanisms. In T. domestica female attractiveness was correlated with changes in 18 chemical compounds. In T. pagana little difference was observed between 12 compounds in extracts of attractive and unattractive females. 12- + 10-Methyloctacosane was not detected in attractive females of either species. Reproductive isolation was linked not only to quantitative changes in 18 chemical compounds detected in both species, but also to nine compounds present in one or the other species.
    Type of Medium: Electronic Resource
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