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Author: Hassan Salem
Publisher: Frontiers Media SA
ISBN: 2832532136
Category : Science
Languages : en
Pages : 296
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Book Description
Author: Hassan Salem
Publisher: Frontiers Media SA
ISBN: 2832532136
Category : Science
Languages : en
Pages : 296
Get Book Here
Book Description
Author: Fernando E. Vega
Publisher: Academic Press
ISBN: 0124171737
Category : Science
Languages : en
Pages : 641
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Book Description
Bark Beetles: Biology and Ecology of Native and Invasive Species provides a thorough discussion of these economically important pests of coniferous and broadleaf trees and their importance in agriculture. It is the first book in the market solely dedicated to this important group of insects, and contains 15 chapters on natural history and ecology, morphology, taxonomy and phylogenetics, evolution and diversity, population dynamics, resistance, symbiotic associations, natural enemies, climate change, management strategies, economics, and politics, with some chapters exclusively devoted to some of the most economically important bark beetle genera, including Dendroctonus, Ips, Tomicus, Hypothenemus, and Scolytus. This text is ideal for entomology and forestry courses, and is aimed at scientists, faculty members, forest managers, practitioners of biological control of insect pests, mycologists interested in bark beetle-fungal associations, and students in the disciplines of entomology, ecology, and forestry. - Provides the only synthesis of the literature on bark beetles - Features chapters exclusively devoted to some of the most economically important bark beetle genera, such as Dendroctonus, Ips, Tomicus, Hypothenemus, and Scolytus - Includes copious color illustrations and photographs that further enhance the content
Author:
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ISBN:
Category : Bark beetles
Languages : en
Pages : 64
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Book Description
Author: George Tsiamis
Publisher: Frontiers Media SA
ISBN: 2889769798
Category : Science
Languages : en
Pages : 465
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Book Description
Insects are by far the most diverse and abundant animal group with respect to the number of species globally, in ecological habitats and in biomass. The ecological and evolutionary success of insects depends in part on their countless relationships with beneficial microorganisms, which are known to influence all aspects of their physiology, ecology, and evolution. These symbiotic associations are known to: (a) enhance nutrient-poor diets, (b) aid digestion of recalcitrant food components, (c) protect from predators, parasites, and pathogens, (d) contribute to inter- and intraspecific communication, (e) affect efficiency as disease vectors and (f) govern mating and reproductive systems. Characterization, exploitation, and management of the insect-bacterial symbiotic associations can contribute significantly to the control of agricultural pests and disease vectors. Insects that depend exclusively on nutritionally restricted diets such as plant sap, vertebrate blood, and woody material, commonly possess obligate mutualistic endosymbionts involved in the provision of essential nutrients or in the degradation of food materials. These intracellular mutualists commonly have the following biological features: (a) they localize inside bacteriocytes, (b) are essential for fitness, (c) are maternally transmitted, and (d) display strict host-symbiont co-evolutionary patterns. In addition to obligate endosymbionts, many insects harbor bacteria that are not essential for their survival or fecundity and are typically maintained with a patchy distribution in host populations. Such symbionts can induce reproductive phenotypes in insect hosts, including male-killing, feminization, parthenogenesis or cytoplasmic incompatibility. Because these bacteria manipulate their host’s reproductive biology, they also likely accelerate host processes. As for essentially all animals, microbial communities are particularly prominent in the digestive tract, where they may be key mediators of the varied lifestyles of insect hosts. The contribution of microorganisms, particularly gut microorganisms, to insect function is highly relevant from several perspectives, linking to applications in medicine, agriculture, and ecology. Gut-associated microorganisms can include protists, fungi, archaea, and bacteria, but it is generally accepted that bacterial species dominate the microbial community in the guts of most insects. Gut-associated bacteria can influence: (a) vectoring efficiency, (b) developmental time, (c) decomposition of plant biomass and carbon cycle, (d) nitrogen fixation and nitrogen cycle, (e) mating incompatibilities, and (f) detoxification of pesticides leading to the acquisition of insecticide resistance.
Author: Fred O Asiegbu
Publisher: Academic Press
ISBN: 0128225432
Category : Nature
Languages : en
Pages : 438
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Book Description
Forest Microbiology, Volume One: Tree Microbiome: Phyllosphere, Endosphere and Rhizosphere places an emphasis on the microbiology of leaves, needles, stems, roots, litter and soil. This comprehensive title is split into five sections, including the phyllosphere microbiome, endosphere, rhizosphere, archaea, viruses in forest ecosystem and microbiota of forest nurseries and tree pests, challenges and potentials. Microbial communities associated with various host trees and different tree tissues are compared, and generalists and specialists among tree-associated microbes are identified. In addition, biotic and abiotic factors determining the composition and the structure of forest tree microbial communities are presented, along with the concept of microbial 'hubs.' Together, the book's editors have 25 years' worth of experience teaching and conducting research on forest microbiology, making this an essential read for any scientist interested in the forest microbiome. - Addresses the microbiology of living organs of forest trees including needles, leaves, stems and roots - Highlights the potential impact of microbiota inhabiting forest trees on the health and fitness of, and disease progression in, forest biomes - Focuses on the phyllosphere, endosphere and rhizosphere forest microbiome
Author:
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Category : Forest management
Languages : en
Pages : 288
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 64
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Book Description
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309290651
Category : Medical
Languages : en
Pages : 436
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Book Description
Individually and collectively, resident microbes play important roles in host health and survival. Shaping and shaped by their host environments, these microorganisms form intricate communities that are in a state of dynamic equilibrium. This ecologic and dynamic view of host-microbe interactions is rapidly redefining our view of health and disease. It is now accepted that the vast majority of microbes are, for the most part, not intrinsically harmful, but rather become established as persistent, co-adapted colonists in equilibrium with their environment, providing useful goods and services to their hosts while deriving benefits from these host associations. Disruption of such alliances may have consequences for host health, and investigations in a wide variety of organisms have begun to illuminate the complex and dynamic network of interaction - across the spectrum of hosts, microbes, and environmental niches - that influence the formation, function, and stability of host-associated microbial communities. Microbial Ecology in States of Health and Disease is the summary of a workshop convened by the Institute of Medicine's Forum on Microbial Threats in March 2013 to explore the scientific and therapeutic implications of microbial ecology in states of health and disease. Participants explored host-microbe interactions in humans, animals, and plants; emerging insights into how microbes may influence the development and maintenance of states of health and disease; the effects of environmental change(s) on the formation, function, and stability of microbial communities; and research challenges and opportunities for this emerging field of inquiry.
Author: L. Safranyik
Publisher: Canadian Museum of Civilization/Musee Canadien Des Civilisations
ISBN:
Category : Nature
Languages : en
Pages : 28
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Book Description
This report provides the results of a specific part of an eight year study on spruce beetle populations, begun in 1972. In this part of the study, which was conducted from 1975 to 1979, emerged spruce beetles were collected each year and chosen at random from the collections to be examined for the presence of filamentous fungi, yeasts, bacteria, mites, and nematodes. The objective of this section of the study was to provide a survey of the presence and relative abundance of these organisms associated with newly emerged adult spruce beetles.--Includes text from document.
Author: Angela E. Douglas
Publisher: Princeton University Press
ISBN: 0691236232
Category : Science
Languages : en
Pages : 352
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Book Description
A comprehensive overview of symbiotic relationships between insects and microbes Insects and Their Beneficial Microbes is an authoritative and accessible synthesis of insect associations with beneficial microorganisms. Angela Douglas distills the vast literature in entomology and microbiology, as well as the burgeoning microbiome literature, to explore the full scope of insect-microbial interactions and their applications to real-world problems in agriculture and medicine. Douglas investigates how insects acquire and support their microbial partners, and examines how microorganisms contribute to insect nutrition, the defense against natural enemies, and the detoxification of natural allelochemicals and chemical insecticides. She analyzes how beneficial microbes can be harnessed to solve real-world problems in insect pest management, including strategies to suppress the transmission of viruses and microbial disease agents by mosquitoes and other insects. She also addresses the use of insects as biomedical models for effective microbial therapies treating a range of chronic human diseases, and considers how knowledge of insect-microbial interactions can promote the health of beneficial insects, especially in the context of environmental pollutants and climate change. Insects and Their Beneficial Microbes provides a much-needed conceptual framework for the growing discipline of insect-microbial interactions, and offers a wealth of insights into insect symbioses from molecular, physiological, ecological, and evolutionary perspectives.
