Дисертації з теми "Invasive mosquitoes"
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Kesavaraju, Banugopan Juliano Steven A. "Behavioral interactions between predator and prey and their influence on an invasive species in container habitats." Normal, Ill. : Illinois State University, 2007. http://proquest.umi.com/pqdweb?index=0&did=1390287471&SrchMode=1&sid=4&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1202751489&clientId=43838.
Повний текст джерелаTitle from title page screen, viewed on February 11, 2008. Dissertation Committee: Steven A. Juliano (chair), Diane L. Byers, L. Philip Lounibos, Charles F. Thompson, William L. Perry. Includes bibliographical references (leaves 152-163) and abstract. Also available in print.
Brustolin, Marco. "Autochthonous and invasive mosquitoes of Catalonia as vectors of zoonotic arboviruses." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/392744.
Повний текст джерелаMosquito-borne diseases (MBDs) are an increasing global public health concern. The increase of international human activities and the global warming, have allowed the rapid spread and establishment of invasive mosquito species in new geographical areas. Moreover, the globalization also cause the introduction of exotic arboviruses in naïve areas where the mosquito vector is present, enhancing MBDs outbreaks. The outbreaks of MBDs, especially those caused by arbovirus like Dengue virus, Zika virus (ZIKV), Rift Valley fever virus (RVFV) or West Nile virus (WNV), have severe consequences for public and/or veterinary health. The economic losses linked to the zoonotic MBDs can severely compromise the economy of the affected country. This is particularly relevant in the developing countries, where diseases such as Rift Valley fever can provoke the death of a huge number of domestic and wild animals. For these reasons a deep knowledge of which mosquito species are present in a country and which of them are competent vectors of different pathogen agents is needed in order to set up appropriate surveillance programs and entomological control strategies. The present thesis is divided in three parts and each one is further divided in chapters. The first part consists of two sections: Chapter 1- General Introduction and Chapter 2- Objectives. The aim of this first part is to give a general overview on the importance of MBDs, the role of the vectors and the concept of vector competence. The descriptions of WNV and RVFV are also provided. Afterwards, the objectives of the thesis are exposed. So far, the population dynamics and the genetic structure of invasive Aedes albopictus, the Asian tiger mosquito, were unknown in Spain. Moreover, no studies on the vector competence of Spanish populations of Culex pipiens and Ae. albopictus for zoonotic arboviruses (WNV and RVFV) have been performed until now. The aim of the present thesis is to clarify all these points. The second part is formed by three chapters. Each of them is an original study aimed to answer the objectives. In the first study (Chapter 3), the genetic structure of Ae. albopictus in Spain has been analyzed with the use of different genetic tools. Based on the results obtained, two different hypotheses have been postulated to explain the introduction and the spread of this species across the country. Moreover, a global analysis about the worldwide spread of Ae. albopictus has been performed. The results of both analyses confirmed the importance of human activities for the local and global dispersion of Ae. albopictus. The second and third studies (Chapter 4 and Chapter 5, respectively), demonstrated how Spanish Cx. pipiens and Ae. albopictus are competent vectors for WNV and RVFV. In both studies the importance of using variable cycling temperature during the extrinsic period of incubation have been verified. The results suggested that variable cycling temperature allows to estimate a more realistic vector competence. Moreover, different approaches have been used for the detection of viral particles in the saliva of infected mosquitoes. The third includes Chapter 6- General discussion and Chapter 7- Conclusions. In this part all the findings are discussed, further studies are proposed and the major conclusions are detailed. At the end of each chapter all the references used are listed.
Zadra, Nicola. "Genome-scaled molecular clock studies of invasive mosquitoes and other organisms of societal relevance." Doctoral thesis, Università degli studi di Trento, 2022. http://hdl.handle.net/11572/351463.
Повний текст джерелаMarcantonio, Matteo [Verfasser], Birgit [Akademischer Betreuer] Kleinschmit, Birgit [Gutachter] Kleinschmit, and Chris [Gutachter] Barker. "Environmental modelling and spatial ecology with focus on invasive Aedes mosquitoes and emergent mosquito-borne pathogens / Matteo Marcantonio ; Gutachter: Birgit Kleinschmit, Chris Barker ; Betreuer: Birgit Kleinschmit." Berlin : Technische Universität Berlin, 2017. http://d-nb.info/115627107X/34.
Повний текст джерелаIngrassia, Amanda. "Larval competition between the native treehole mosquito Ochlerotatus triseriatus and the invasive mosquito Ochlerotatus japonicus using natural diets." Diss., Online access via UMI:, 2006.
Знайти повний текст джерелаBoudreaux, Michelle. "Native and Invasive Competitors of the Eastern Oyster Crassostrea Virginica in Mosquito Lagoon, Florida." Master's thesis, University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4051.
Повний текст джерелаM.S.
Department of Biology
Arts and Sciences
Biology
Crain, Philip R. "Putting theory into practice: Predicting the invasion and stability of Wolbachia using simulation models and empirical studies." UKnowledge, 2013. http://uknowledge.uky.edu/entomology_etds/2.
Повний текст джерелаCiocchetta, Silvia. "The vector potential of the mosquito Aedes koreicus." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/119157/1/Silvia%20Ciocchetta%20Thesis.pdf.
Повний текст джерелаSherpa, Stéphanie. "Histoire de la colonisation et déterminants du succès invasif des populations du moustique tigre Aedes albopictus en Europe." Electronic Thesis or Diss., Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAV049.
Повний текст джерелаThe Asian tiger mosquito, Aedes albopictus, is native to Southeast Asia and has colonized all continents but Antarctica in the last decades. However, the factors determining the invasive success of populations at the global scale remain to be elucidated. Focusing on the European invasion, we used a comprehensive framework and multi-source data for distinguishing the role of historical and contemporary processes, both neutral and adaptive, in structuring the genetic variability of invasive populations. Examining the genetic variability of 1,000 individuals from 150 invasive and native populations revealed three independent introduction events in Europe (in Albania, North Italy, and Central Italy), from the United States (previously invaded area) and from China (native range). Primary introduced populations constituted dispersal centers for the colonization of Europe, and migration routes correlate with the geography of human transportation networks. Several admixture events either during introduction or subsequent expansion, as well as high connectivity between invasive populations, promoted the maintenance of high levels of genetic diversity. Pre-existing cold adaptation within the native range of the species and niche conservatism between introduced populations and their sources suggest that these populations were already prepared for establishing under temperate European climate. Nonetheless, shifts in allele frequencies along environmental gradients within Europe suggest post-introduction adaptive changes. The adaptive potential of populations and long-distance human-aided dispersal facilitated the rapid expansion of populations. Although often neglected in the context of biological invasions, natural dispersal at the landscape scale further contributed to range filling in range edge populations. The study of the demo-genetic and environmental characteristics of the European invasion allows a better understanding of processes at play during two key stages of the invasion process: establishment and expansion
Medley, Kimberly. "Dispersal, Gene Flow, and Adaptive Evolution During Invasion: Testing Range-Limit Theory with the Asian Tiger Mosquito." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5435.
Повний текст джерелаPh.D.
Doctorate
Biology
Sciences
Conservation Biology; Ecology and Organismal Biology
Zielke, Dorothee Ellen [Verfasser]. "Population genetics and distribution of the invasive mosquito Aedes japonicus japonicus (Diptera: Culicidae) in Germany and Europe / Dorothee Ellen Zielke." Greifswald : Universitätsbibliothek Greifswald, 2016. http://d-nb.info/1102162639/34.
Повний текст джерелаEsquivel, Palma Carlos Josue. "Effects of Blood Feeding on The Transcriptome of The Malpighian Tubules in The Asian Tiger Mosquito Aedes albopictus." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429619765.
Повний текст джерелаAlcaraz, Cazorla Carles. "Ecological interactions between an invasive fish (Gambusia holbrooki) and native cyprinodonts: the role of salinity." Doctoral thesis, Universitat de Girona, 2006. http://hdl.handle.net/10803/7868.
Повний текст джерелаEntre les especies més afectades per la introducció de peixos es troben els ciprinodontiformes endèmics del Mediterrani. Aportem les primers dades sobre l'ús d'hàbitats ocasionalment inundats i la selecció de preses del fartet (Aphanius iberus), observant un canvi ontogenètic, clarament relacionat amb el microhàbitat.
També demostrem que la salinitat influeix en l'èxit invasor de la gamúsia, afectant la seva densitat i biologia reproductiva. Per altra banda, demostrem experimentalment que amb l'increment de salinitat la gambúsia disminueix la seva agressivitat i captura menys preses, reduint la seva eficàcia competitiva respecte dels ciprinodonts natius.
One of the main current threats to biodiversity is the introduction of invasive species. By reviewing 26 life-history and ecological variables of the 69 inland fish species of the Iberian Peninsula we conclude that phylogeny, variability and human use are needed to a better understanding of the differences between native and invasive species.
Among the most threatened species by invasive fish are the Mediterranean endemic cyprinodontiform fish. We report the first data on the use of occasionally-inundated habitats ad prey electivity by the Spanish toothcarp (Aphanius iberus). We observed an ontogenetic diet shift clearly linked to a microhabitat change.
We also demonstrate that salinity limits the invasive success of mosquitofish (Gambusia holbrooki), affecting density and life history traits. ON the ohter hand, we experimentally demonstrate that mosquitofish decreases its aggresive behavior and capture less prey, reducing its competitive efficiency with salinity increases regarding to native ciprinodonts.
Marcantonio, Matteo. "Environmental modelling and spatial ecology with focus on invasive Aedes mosquitoes and emergent mosquito-borne pathogens." Doctoral thesis, 2016. http://hdl.handle.net/10449/38395.
Повний текст джерелаLittle, Eliza Anastazia Hazel. "The influence of climate and socio-ecological factors on invasive mosquito vectors in the Northeastern US: Assessing risk of local arboviral transmission." Thesis, 2017. https://doi.org/10.7916/D8MC9B90.
Повний текст джерелаChen, Tien-Lai, and 陳天來. "The invasion of entomopathogenic nematodes, Steinernema abbasi and Steinernema carpocapsae into Aedes albopictus larva, and defense reaction of the mosquito." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/77720685768670334013.
Повний текст джерела國立中興大學
昆蟲學系
90
The pathogenicity of entomopathogenic nematodes, Steinernema abbasi and Steinernema carpocapsae, to Aedes albopictus larvae and pupae showed that both S. abbasi and S. carpocapsae were pathogenic to 3rd and 4th instar larvae, there was no any pathogenic to 1st, 2nd instar larvae and pupae. The pathogenicity of S. carpocapsae was higher than that of pathogenicity in the experiment which there was only a larva in the container. However, the pathogenicity of S. abbasi was higher than that of S. carpocapsae in the experiment which there were thirty larvae in the container. The different combinations of nematodes and mosquitoes in inoculation caused the different mosquito mortalities; the more larvae inoculated in one container, the lower mortality was caused. The invasion route of S. abbasi into the hemocoel of 4th instar larvae of Ae. albopictus was found via the mouth and gastric caecum mainly. In pupa of Ae. albopictus, S. abbasi was able to penetrate into it through the spiracle or intersegmental membrane, although this nematode lacks mouth or penetrative hook. Encapsulation was induced by both S. abbasi and S. carpocapsae in the hemocoel of Ae. albopictus larva. The encapsulation capacity of Ae. albopictus larva was maximal 31 menalized-capsules per larva in S. abbasi and 15 in S. carpocapsae. Both S. abbasi and S. carpocapsae were able to kill the mosquito larvae by only one nematode invaded, in this context, the percentage of dead mosquito larvae was 81% as invaded by S. abbasi and 94% by S. carpocapsae. Ultrastructural examination of encapsulation of S. abbasi by Ae. albopictus larva was observed using transmission electron microscopy (TEM). The humoral encapsulation was primarily formed by electron dense homogenous structure without cellular material, which formed an inner layer of capsule enclosing S. abbasi 10 min after inoculation. About 1 hr after inoculation, the humoral encapsulaton was formed completely when plasmatocyte started to attach onto the surface of humoral capsule, which formed the outer layer of cellular capsule. Encapsulation process was terminated at 24-48 hr after IJs inoculation by formation of the basement membrane-like structure around the whole capsule.
ROCHA, Hélio Daniel Ribeiro. "The role of α-Gal(Galα1-3 Galβ1-4GlcNac-R) on Plasmodium spp. sporozoites in Anopheles spp mosquito salivary glands invasion". Doctoral thesis, 2021. http://hdl.handle.net/10362/125111.
Повний текст джерелаIntroduction: Understanding Plasmodium and mosquito vector interactions is crucial to develop strategies for control and malaria elimination in endemic areas. Mosquito’s salivary glands invasion is one of the most important steps for malaria transmission. Understanding how the Plasmodium parasite interacts with this organ is fundamental to achieve malaria elimination. Many glycans are implicated in cell-to-cell interactions and could play a central role in parasite-host interactions. The Galα1-3Galβ1-4GlcNAc-R glycan or simply α-Gal epitope is a major antigen for the human immunologic system and its present on Plasmodium, the malaria parasite. Aims: In this work, we aimed to understand the role of α-Gal during Anopheles spp. salivary glands invasion by Plasmodium and to establish the origin of Plasmodium α-Gal. Methods: To detect α-Gal immunofluorescence was used, Plasmodium bergei ANKA-GFP sporozoites (SPZs), ookinetes, and oocytes were fixed with 4% paraformaldehyde and stained with the anti-α-Gal_IgG2b with secondary anti-mouse IgG conjugated with Alexa fluor-647, anti-CSP mAbs conjugated with Alexa fluor-647, or with Isolectin BSI-IB4 conjugated with Alexa fluor-647. The α-Gal antigen was detected on mosquitoes’ midgut (MG) and salivary glands (SGs) by immunofluorescence microscopy and western blots. SPZs expressing α-Gal from infected An. stephensi collected from MG (8th to the 23rd days post-infection), hemolymph (14th to the 23rd dpi), and SGs (14th to the 23rddpi) were detected and quantified using flow cytometry. The Plasmodium UDP-Gal transporter gene expression in SPZs from the MGs and SGs was accessed by RT-qPCR and the 2-ΔΔct at different days post-infection. The role of α-Gal on the Plasmodium mosquito interactions was investigated. Mosquitoes` UDP-Gal transporter and C-Type lectins (CTL)-galactose-binding genes were targets using RNA interference. The specific double-stranded RNA was injected on the 8th day post-infection. Gene silence was confirmed using RT-qPCR and at the 18th dpi, SGs and MGs were dissected and SPZs quantified by haemocytometer. The number of SPZs were compared with the control groups injected with unrelated dsRNA. The presence of α-Gal on SPZ gliding trial was investigated using anti-α-Gal mAbs conjugated with Alexa fluor-647. Additionally, the effect of anti-α-Gal mAbs and Isolectin BSI-IB4 on SPZs gliding movement was tested using live microscopic images. Results: The presence of α-Gal was detected by immunofluorescence microscopy in the mosquito’s midguts and salivary glands and on Plasmodium sporozoites and ookinetes. The percentage of SPZs expressing α-Gal, by flow cytometry at different days post-infection showed a non-significant difference between them, but when SPZ from different organs (SG, HL, and MG) were compared, the SPZs from SGs presented significantly higher expression of α-Gal. The number of SPZs from SGs was reduced when mosquitoes UDP-Gal transporter gene was silenced while no differences were observed on the number SPZs from MG, but a reduced percentage of SPZs expressing α-Gal and lower α-Gal intensity was observed in MG but not SG. From the three C-Types lectins (CTL)-galactose-binding gene target with dsRNA, only one was successfully silenced. The silencing of the C-Types lectin (CTL)-galactose-binding gene resulted in a significant reduction of SGs invasion when compared with the control. However, an increment in α-Gal expression was observed on those SPZs. α-Gal could not be detected on SPZs gliding trial and non-effect on SPZs movement were observed when SPZs were incubated with anti-α-Gal mAbs or Isolectin BSI-IB4. Conclusion: The α-Gal antigen is present throughout the Plasmodium sporogonic cycle, presenting a non-mosquito exclusive origin. The data suggest that α-Gal is involved in mosquito salivary gland invasion possible via receptor interaction but not via gliding.