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The Use of Insects for Monitoring Global Changes
Ali, Mohamed Abdussalam ; Jarošík, Vojtěch (advisor) ; Frouz, Jan (referee) ; Sedláček, Ondřej (referee)
Abstracts ofthe stuďes inc|uded |n the thesir Effect ofland useandclimate on ďversity ofmoth guilds with differenthabitatspecialization MoEAli'EDAL| ADDUSSALÁMM. KoTELA', ToMÁŠ K.lolrcl, Ivo NovÁr2, Mmrnl Korwrčxl3'a lNo VorÉcrr JlnoŠkL5 LDepartmentofEcologt, Factlty ofScience,Charla ^ Univqsiý,Prague,CzechReptblic, .ResearchInstituteofCrop Proúaio4 Prague 6-Ruzyně,the - CzechRepublic 'InstituteofEntomologl, AcademyofSciences oÍtheCzech Republb' CeskzBudejovžce'CzechRepublic aSchool ofBiologiml Sciences,Universityof Southen - Bohemia,CeskeBudejoice, CzechRepublic 'Institute oÍBotany,AcademyofScienca ofthe Czech Republic,Průhonice,CzechRepublic Address for corr$pondence: Vojtěch JarošflqD€paÍtment of Ecolory' Faculý of Sciences,ChaÍlesUniversiý, Viničná Abstrecí An assemblageofmoth speciesata suburbof Prague(5005'11'\l4ol8'06"E) wasnonitoredby a highly efficient mercurylight trapfor 23 years(1967-1976,l98O- 1992).Speciescaughtrťeíedividedinto sevenguilds accolding to habitatspecialisation,andanďysed for yearly catchesandeffectofannual meant€mperatuÍeatrd precipitatiouby shannon's indexofdiversiý' separatelyfor ďl andabundant(z 5 individuals per yea) species.overal| 424 specieswasrecorded:25 early successionalspeciesof arableland (43%of all caughtinďviduals), 116 forestspecies feedingon...
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Juvenoids and juvenogens - possibilities of their use for pest management of herbivorous incect
Jedlička, Pavel ; Jarošík, Vojtěch (advisor) ; Kodrík, Dalibor (referee) ; Stejskal, Václav (referee)
INTRODUCTION In my PhD thesis I am engagedin determinationand evaluationof effects of selectedju- venoids andjuvenogens'ofvarious chemical structuÍeson model insect species.Thesecom- pounds were tested using topical and per os application on the red firebug, Pyrhocoris apterus L., and applied via the broad bean, Vicia faba L., root system on the pea aphid, Acyrthosiphonpisum Huris. Theq basedon result obtainedfrom theseassays,I considered the suitabi|iý of thesecompoundsfor aphidmanagementandtheir potentialimpact on aphid predatorybeetles(Coleopter4 Coccinelidae). RESULTS The most importantdataobtainedAom testson P. apterus andA. pisum I presentedin the articleJedličkaet a|.(2007): The systemiceffectsofjuvenoids on the red firebugPyrrřocois qterus and on the pea aphidAcyrthosiphonpisumwith dataon life tableresponse JeďičkaP., Hrdý I.,Kuldová J. andWimmerZ. PestManagementscience63' 102ó.1035 Abstract A series ofjuvenoid ďcohols and theř glycosidic derivatives (uvenogens),synthe. sized atthe lnstituteof Organic Chemistry and Biochemistry (IOCB) in hague, com- mercially usedjuvenoids and the naturď derivativesofjuvabione were evaluatedfor their systemic juvenilizing effect on the red firebug, Pyrrhocoris apterus L., and onthe pea aphid Ácyrthosiphonpisum Harris' A life table Íesponseexperimentwas desiped,...
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Precopulatory behavior in firebug Pyrrhocoris apterus
Křivánek, Miloš ; Jarošík, Vojtěch (advisor) ; Stejskal, Václav (referee)
The existing research works, dealing with pre-copulatory behaviour in Pyrrhocoris apterus (L.), show that this behaviour follows a simple pattern of mating. The aim of this work is to extend knowledge regarding this type of behaviour. Results were obtained by processing the video footage to monitor the behaviour of individuals of the Central European population (the Czech Republic) as occurred in the respective copulatory zone. Changes were observed in the occurrence and mating activity of each sex depending on climatic conditions and time. Furthermore, the course of individual phases of the mating behaviour, based on mutual interactions and under the influence of external factors, was also observed. These results were supplemented by adding data gained from laboratory experiments, taking place at a temperature of 22 ± 4 řC and involving a long- day type photoperiodic reaction. Based on the results gained, it had been revealed that the climatic conditions significantly influenced the course of behaviour. Individuals of both sexes are physically active during the photo-phase when the intensity of this activity changes in the course of the circadian rhythm. Females display a higher sensitivity to any variation in climate. Males who are influenced by the presence of receptive females show greater locomotive...
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Applied Ecology of Stored-Product Pests
Gamila, Ibrahim-Asbaly ; Jarošík, Vojtěch (advisor) ; Žďárková, Eva (referee) ; Táborský, Vladimír (referee)
48 6 Conclusions The relationship between the rate of increase of temperature was significant for A.siro, Aleuroglyphus ovatus and T. putrescentiae. By using real temperatures recorded in Czech grain stores, it was shown that the pest mite population increases only during 3.5 months within a typical 9-month storage season in central Europe. This result indicated that control of mites is recommended during these months when pests and allergens are produced, i.e. from September to mid November and in May. The addition of bean flour to the diet was toxic for all mite species tested, as indicated by the suppression of their population growth. Bean flour (i.e. admixture with food in a concentration of 5 %) is able to suppress any population growth, thereby keeping the mite population at the starting density. This is the first report that leguminous plant compounds suppress the population growth of storage mites.
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Basic Methods of Sustainable Agriculture
Selecký, Tomáš ; Jarošík, Vojtěch (advisor) ; Frouz, Jan (referee)
Goal of this bachelor thesis is to familiarize readers with the basic methods of management, used in sustainable agriculture. Emphasis will be placed particularly on those methods that I consider to be the most important for achieving economic profitability, environmental protection and sustainability. Considering these methods, I have chosen crop rotation, reduced tillage system and polycultures. This paper should also suggest that transition from conventional, energetically intensive agriculture to the sustainable one is not only important for the environment protection, but that this method of crop production can be even economically advantageous as well. I would like to continue my work on this thesis during my master degree studies in specialization of agroecology at agronomic university.
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Juvenoids and juvenogens - possibilities of their use for pest management of herbivorous incect
Jedlička, Pavel ; Jarošík, Vojtěch (advisor) ; Kodrík, Dalibor (referee) ; Stejskal, Václav (referee)
INTRODUCTION In my PhD thesis I am engagedin determinationand evaluationof effects of selectedju- venoids andjuvenogens'ofvarious chemical structuÍeson model insect species.Thesecom- pounds were tested using topical and per os application on the red firebug, Pyrhocoris apterus L., and applied via the broad bean, Vicia faba L., root system on the pea aphid, Acyrthosiphonpisum Huris. Theq basedon result obtainedfrom theseassays,I considered the suitabi|iý of thesecompoundsfor aphidmanagementandtheir potentialimpact on aphid predatorybeetles(Coleopter4 Coccinelidae). RESULTS The most importantdataobtainedAom testson P. apterus andA. pisum I presentedin the articleJedličkaet a|.(2007): The systemiceffectsofjuvenoids on the red firebugPyrrřocois qterus and on the pea aphidAcyrthosiphonpisumwith dataon life tableresponse JeďičkaP., Hrdý I.,Kuldová J. andWimmerZ. PestManagementscience63' 102ó.1035 Abstract A series ofjuvenoid ďcohols and theř glycosidic derivatives (uvenogens),synthe. sized atthe lnstituteof Organic Chemistry and Biochemistry (IOCB) in hague, com- mercially usedjuvenoids and the naturď derivativesofjuvabione were evaluatedfor their systemic juvenilizing effect on the red firebug, Pyrrhocoris apterus L., and onthe pea aphid Ácyrthosiphonpisum Harris' A life table Íesponseexperimentwas desiped,...
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Applied Ecology of Stored-Product Pests
Gamila, Ibrahim-Asbaly ; Jarošík, Vojtěch (advisor) ; Žďárková, Eva (referee) ; Táborský, Vladimír (referee)
48 6 Conclusions The relationship between the rate of increase of temperature was significant for A.siro, Aleuroglyphus ovatus and T. putrescentiae. By using real temperatures recorded in Czech grain stores, it was shown that the pest mite population increases only during 3.5 months within a typical 9-month storage season in central Europe. This result indicated that control of mites is recommended during these months when pests and allergens are produced, i.e. from September to mid November and in May. The addition of bean flour to the diet was toxic for all mite species tested, as indicated by the suppression of their population growth. Bean flour (i.e. admixture with food in a concentration of 5 %) is able to suppress any population growth, thereby keeping the mite population at the starting density. This is the first report that leguminous plant compounds suppress the population growth of storage mites.
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