Search Results - "Hails, R. S"
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Assessing the risks associated with new agricultural practices
Published in Nature (London) (08-08-2002)“…One key challenge for the twenty-first century is how to produce the food we need, yet ensure the landscape we want. Genetically modified crops have focused…”
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Challenges in modelling complexity of fungal entomopathogens in semi-natural populations of insects
Published in BioControl (Dordrecht, Netherlands) (01-02-2010)“…The use of fungal entomopathogens as microbial control agents has driven studies into their ecology in crop ecosystems. Yet, there is still a lack of…”
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Density-Dependent Prophylaxis and Condition-Dependent Immune Function in Lepidopteran Larvae: A Multivariate Approach
Published in The Journal of animal ecology (01-03-2004)“…1. The risk of parasitism and infectious disease is expected to increase with population density as a consequence of positive density-dependent transmission…”
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Genetically modified plants – the debate continues
Published in Trends in Ecology & Evolution (2000)“…The debate about the potential risks and benefits of genetically modified organisms (GMOs) has hit the headlines over the past few months. The polarization of…”
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Baculovirus resistance in the noctuid Spodoptera exempta is phenotypically plastic and responds to population density
Published in Proceedings of the Royal Society. B, Biological sciences (22-09-1998)“…is phenotypically plastic, and that the melanized cuticles characteristic of the high–density form may be indicative of a more active immune system…”
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Transgenic crops in natural habitats
Published in Nature (London) (08-02-2001)“…To address concerns that genetically modified (GM) plants could become invasive if they spread to natural ecosystems, four transgenic crops (oilseed rape,…”
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Manipulation of host cytokine network by ticks: a potential gateway for pathogen transmission
Published in Parasitology (01-03-2005)“…Ticks are obligatory blood-feeding arthropods that secrete various immunomodulatory molecules to antagonize host inflammatory and immune responses. Cytokines…”
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Invasion and Dynamics of Covert Infection Strategies in Structured Insect-Pathogen Populations
Published in The Journal of animal ecology (01-05-2005)“…1. Pathogens are known to cause horizontally transmitted overt (fully symptomatic) and vertically transmitted covert (asymptomatic) infections. Here, we…”
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Consequences for Host-Parasitoid Interactions of Grazing-Dependent Habitat Heterogeneity
Published in The Journal of animal ecology (01-05-2006)“…1. Environmental heterogeneity can produce effects that cascade up to higher trophic levels and affect species interactions. We hypothesized that…”
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Host ecology determines the relative fitness of virus genotypes in mixed‐genotype nucleopolyhedrovirus infections
Published in Journal of evolutionary biology (01-09-2004)“…Mixed‐genotype infections are common in many natural host–parasite interactions. Classical kin‐selection models predict that single‐genotype infections can…”
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Ecology of transgenic oilseed rape in natural habitats
Published in Nature (London) (17-06-1993)“…The invasiveness of genetically engineered plants in a natural habitat was examined. Research suggests that transgenic plants were less invasive and less…”
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Biotechnology Transgenic crops in natural habitats
Published in Nature (London) (08-02-2001)“…Although improved crop yields can be engineered by genetically modifying plants, there is ecological concern over whether these plants are likely to persist in…”
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Host Plant Species Can Influence the Fitness of Herbivore Pathogens: The Winter Moth and Its Nucleopolyhedrovirus
Published in Oecologia (01-05-2002)“…Plants can have a significant impact on the fitness and efficacy of natural enemies. These interactions are widespread and suggest that the influences on the…”
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Microparasite Manipulation of an Insect: The Influence of the Egt gene on the Interaction between a Baculovirus and Its Lepidopteran Host
Published in Functional ecology (01-06-2004)“…1. Parasites and pathogens manipulate their hosts in a variety of ways that are thought to enhance their fitness. However, it is rare to be able to link such…”
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Differential anti-chemokine activity of Amblyomma variegatum adult ticks during blood-feeding
Published in Parasite immunology (01-04-2007)“…Ticks secrete a cocktail of immunomodulatory molecules in their saliva during blood-feeding, including chemokine-binding factors that help control the activity…”
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Phenotypic and genotypic characterisation of persistent baculovirus infections in populations of the cabbage moth (Mamestra brassicae) within the British Isles
Published in Archives of virology (01-04-2006)“…The genotypic relatedness of persistent baculovirus infections within UK populations of Mamestra brassicae was assessed by sequencing amplified regions from…”
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Escape from pupal predation as a potential cause of outbreaks of the winter moth, Operophtera brumata
Published in Oikos (01-08-2002)“…The winter moth, Operophtera brumata, shows varying population dynamics in different host plant habitats. Populations in Sitka spruce, Picea sitchensis,…”
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Effects of Phenotypic Plasticity on Pathogen Transmission in the Field in a Lepidoptera-NPV System
Published in Oecologia (01-08-2000)“…In models of insect-pathogen interactions, the transmission parameter (v) is the term that describes the efficiency with which pathogens are transmitted…”
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Tick-borne Great Island Virus: (I) Identification of seabird host and evidence for co-feeding and viraemic transmission
Published in Parasitology (01-02-2006)“…Great Island Virus (GIV) is an arbovirus present in the tick Ixodes uriae, a common ectoparasite of nesting seabirds. Common guillemot (Uria aalge) and…”
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Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host
Published in Parasitology (01-02-2006)“…Tick-borne pathogen transmission is dependent upon tick number per host and the physical and temporal distribution of each feeding stage. Age-related acquired…”
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