Morphology of the Immature Stages of Culicoides Sonorensis Wirth and Jones (Diptera: Ceratopogonidae) with Observations on Their Biology PDF Download
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Author: Lucy Anne Abubekerov Publisher: ISBN: 9781321550559 Category : Ceratopogonidae Languages : en Pages : 113
Book Description
The egg, all four larval instars, and pupa of Culicoides sonorensis Wirth and Jones (Diptera: Ceratopogonidae) are described and imaged using a compound microscope and scanning electron microscopy. The differences between the larval instars have also been noted. The swimming speeds of the larvae as well as the location of the pupae and their responses to both changes in the waterline and prolonged submersion underwater have also been examined.
Author: Lucy Anne Abubekerov Publisher: ISBN: 9781321550559 Category : Ceratopogonidae Languages : en Pages : 113
Book Description
The egg, all four larval instars, and pupa of Culicoides sonorensis Wirth and Jones (Diptera: Ceratopogonidae) are described and imaged using a compound microscope and scanning electron microscopy. The differences between the larval instars have also been noted. The swimming speeds of the larvae as well as the location of the pupae and their responses to both changes in the waterline and prolonged submersion underwater have also been examined.
Author: Dinesh Erram Publisher: ISBN: Category : Languages : en Pages :
Book Description
The larval stages of Culicoides sonorensis Wirth and Jones, a confirmed vector of bluetongue and epizootic hemorrhagic disease viruses affecting ruminants in North America, have been observed to occur typically in animal waste enhanced muds. In this dissertation, I studied the larval development (first instar to adult stage) and oviposition (four-choice assays) of C. sonorensis on sterilized mud (autoclaved) enriched with manure of different farm animal species (dairy cattle, beef cattle, sheep, goats, pigs, horses, white-tailed deer, and chicken). In addition, to determine why only some manure-polluted sites are colonized by C. sonorensis even when they are in close proximity to each other, I examined the moisture levels and microbial concentrations (mud) and physicochemical characteristics (standing water) of a manure-overflow pond site producing C. sonorensis and compared them to nearby cattle stock pond site(s) that produced different Culicoides species. Finally, as the first step in examining the role of microbiome in various physiological functions of C. sonorensis and other suspected/potential vector Culicoides species, I assessed the bacterial communities in field-collected adult females of C. sonorensis, C. crepuscularis, C. haematopotus, and C. stellifer (Illumina sequencing of 16S rRNA gene). In larval development experiments, the proportion of adults emerged and development time to adult stage varied with manure type and its concentration present in the substrate. Mud supplemented with chicken manure did not support C. sonorensis development, mud enriched with white-tailed deer manure poorly supported midge development, while C. sonorensis development in mud enhanced with manure of sheep, goats, beef cattle, dairy cattle, pigs, and horses varied. In oviposition experiments, colonized females preferred to deposit eggs on substrates without animal manure over substrates with animal manure. In subsequent studies, the manure-overflow pond site that produced mainly C. sonorensis contained significantly higher total aerobic culturable bacteria, pH, salinity, total dissolved solids, and conductivity levels than cattle stock pond sites that produced different Culicoides species. Finally, bacterial composition of field-collected C. sonorensis adult females comprised mainly of the phyla Proteobacteria and Firmicutes, while the majority of bacterial taxa identified from C. crepuscularis, C. haematopotus, and C. stellifer belonged to Proteobacteria. An unidentified bacterial genus (related to Tumebacillus), Propionibacterium, and Curvibacter were detected commonly across all four midge species. These results suggest that manure of several farm animal species can contribute to C. sonorensis development in the field. However, oviposition preferences remain uncertain, as colonized females appeared to show aversion to animal manure, which is in contradiction to the typical presence of C. sonorensis larvae in animal waste enhanced muds. Nonetheless, variations in microbial and/or physicochemical conditions in the larval habitats likely play a role in the differential emergence of C. sonorensis from various manure-polluted sites. Moreover, some bacterial taxa are associated commonly with C. sonorensis and other suspected/potential vector Culicoides species. Future studies are needed to examine oviposition preferences of field-collected females, life history traits of adults emerging from various manure-enriched substrates, developmental requirements of larvae, and the role of microbiome in various physiological functions of the host including vector competence for orbiviruses.
Author: Muhammad Sarwar Publisher: BoD – Books on Demand ISBN: 1838802258 Category : Science Languages : en Pages : 184
Book Description
Diptera, or true flies, are of considerable economic importance, as these flies have a valuable role as scavengers, parasitoids and predators of other insects, pollinators, food for predators, bio-indicators of water quality, and tools for scientific research. In nine chapters, this book examines various aspects of flies of the order Diptera as well as some types of mosquitos and midges. Topics covered include taxonomy, phylogeny, life cycle, feeding habits, population control strategies, and more. A unique chapter on forensic entomology is particularly interesting. Beautifully illustrated and expertly researched, this volume will appeal to entomologists, biologists, and naturalists.
Author: Marjorie A. Hoy Publisher: Elsevier ISBN: 1483293718 Category : Science Languages : en Pages : 569
Book Description
Developed as an introduction to new molecular genetic techniques, Insect Molecular Genetics also provides literature, terminology, and additional sources of information to students, researchers, and professional entomologists. Although most molecular genetics studies have employed Drosophila, this book applies the same techniques to other insects, including pest insects of economic importance. As a text, as a reference, as a primer, and as a review of a vast and growing literature, Insect Molecular Genetics is a valuable addition to the libraries of entomologists, geneticists, and molecular biologists. Features offered by this unique reference source: Detailed illustrations Suggested readings at the end of each chapter Glossary of molecular genetic terms
Author: David K. Yeates Publisher: Columbia University Press ISBN: 0231501706 Category : Science Languages : en Pages : 441
Book Description
Flies (Dipteria) have had an important role in deepening scientists'understanding of modern biology and evolution. The study of flies has figured prominently in major advances in the fields of molecular evolution, physiology, genetics, phylogenetics, and ecology over the last century. This volume, with contributions from top scientists and scholars in the field, brings together diverse aspects of research and will be essential reading for entomologists and fly researchers.
Author: Irina Brake Publisher: BRILL ISBN: 9004261036 Category : Science Languages : en Pages : 412
Book Description
Concerns about global biodiversity are rising dramatically, yet we are lagging behind in the most basic prerequisite for its understanding and conservation: the inventory. Insect species may make up five or ten times the number of all other plant and animal species combined, and as such they represent one of the major challenges in biosystematic science. World Catalogue of Insects is an initiative aiming at compiling worldscale, authoritative catalogues of monophyletic insect taxa. Volumes in this series contain standard nomenclatoral information on all names pertaining to the taxon treated, including type locality and distribution to the extent this is relevant. Additional information is optional, e.g., location, status and condition of types; biology; bibliographical information; pest status; vector status; etc. This volume nine focuses on Drosophilidae (Diptera). (Series: World Catalogue of Insects)
Author: Peter Mertens Publisher: Academic Press ISBN: 0080918972 Category : Science Languages : en Pages : 507
Book Description
The third volume in the Institute of Animal Health (IAH) Biology of Animal Infections Series, Bluetongue discusses one of the most economically important diseases of domesticated livestock. Affecting primarily sheep particularly the improved mutton and wool breeds, it is now endemic in Africa, India, the Middle and Far East, Australia and the Americas, and over the last six years has caused a series of outbreaks throughout the Mediterranean region and central Europe. Bluetongue represent a paradigm not only for the other orbiviruses (such as African horse sickness virus, which shares the same vector species) but also for other insect transmitted diseases, including those of humans. The only single definitive work that provides both historical and up to date data on the disease Describes the latest developments in epidemiological modelling, molecular epidemiology and vaccine development, as well as explaining the current global epidemiology of the disease Outlines the importance and possible mechanisms of overwintering, and the impact of global warming on the vectors and virus distribution
Author: Lucy Anne Abubekerov
Author: Lucy Anne Abubekerov
Author: Dinesh Erram
Author: Muhammad Sarwar
Author: 
Author: Marjorie A. Hoy
Author: David K. Yeates
Author: Irina Brake
Author: 
Author: Peter Mertens
Author: Willis Wagner Wirth