نتایج جستجو برای: invader species
تعداد نتایج: 548714 فیلتر نتایج به سال:
Anatomical studies suggest that regenerating optic axons which invade the ipsilateral lobe of the optic tectum following ablation of the contralateral lobe compete with resident optic axons for synaptic sites on tectal neurons. Invader optic axons are initially uniformly distributed over the entire tectal lobe. With time, the invader and resident optic axons progressively segregate so that the ...
Widespread accounts of the harmful effects of invasive species have stimulated both practical and theoretical studies on how the spread of these destructive agents can be contained. In practice, a widely used method is the deployment of biological control agents, that is, the release of an additional species (which may also spread) that creates a hostile environment for the invader. Seeding col...
The impact of the HCV genotype 1b core amino acid (aa) 70 mutant on the cumulative rate of hepatocellular carcinoma following eradication of HCV RNA by antiviral therapy was investigated with the Q-Invader assay. Multivariate analysis based on 649 patients indicated that a core aa70 Q-Invader mutant level ≥20% is a predictor of hepatocellular carcinoma.
Phragmites australis subsp. (hereon Phargmites), has become a dominating threat to the Great Lakes wetlands at time when climate change pressures are also compromising integrity of native habitat. Understanding role this invader plays in resiliency is crucial order improve management decisions protect and restore wetlands. This literature review was conducted predict if wetland’s effects could ...
the community dynamics of aquatic coleoptera(insecta)in one of the spring-stream habitats of bammo national park in fars province called cheshmeh-ye-ghanbari is studied as a pilot project and model for acquaintance with and furthering the biodiversity studies on fauna of iran. sixteen species-populations out of nineteen of this community were already identified for their taxonomy and for thei...
In herbaceous ecosystems worldwide, biodiversity has been negatively impacted by changed grazing regimes and nutrient enrichment. Altered disturbance regimes are thought to favour invasive species that have a high phenotypic plasticity, although most studies measure plasticity under controlled conditions in the greenhouse and then assume plasticity is an advantage in the field. Here, we compare...
Given that many exotic plant species throughout the world are having large ecological and economic effects, it is vital to understand the forces that mediate their success in novel landscapes. Both native herbivores and recipient ecosystems can have substantial effects on the performance of exotic plant species, and may interact with each other or vary in their effects over time. Unfortunately,...
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