Now showing items 1-10 of 68
Damping-off epidemics, contact structure, and disease transmission in mixed-species populations
(Ecological Society of America, 2005-07)
In this paper we introduce a method to analyze the inter- and intraspecies transmission rates and contact structure between susceptible and infected plants in epidemics in mixed plant populations. Using spatiotemporal maps ...
Estimation of multiple transmission rates for epidemics in heterogeneous populations
(The National Academy of Sciences of the USA, 2007-12)
One of the principal challenges in epidemiological modeling is to parameterize models with realistic estimates for transmission rates in order to analyze strategies for control and to predict disease outcomes. Using a ...
Preferential spread of the pathogenic fungus Rhizoctonia solani through structured soil
(Elsevier Science B.V., Amsterdam, 2004-02)
Most studies on soil fungi have been carried out with little explicit characterisation of soil structure within which fungi spread and biotic interactions occur. In this paper we use a combination of epidemiological ...
Empirical evidence of spatial thresholds to control invasion of fungal parasites and saprotrophs
(Blackwell Publishing Ltd, 2004)
The ability to forecast invasion of harmful and beneficial organisms is becoming increasingly important in agricultural and horticultural production systems as well as in natural plant communities. • In this paper we ...
Automated statistical method to align 2D chemical maps with 3D X-ray computed micro-tomographic images of soils
Recent 2-dimensional measurements reveal that soils are chemically very heterogeneous at nanometric and micrometric scales. Direct measurement techniques are still lacking to extend these observations to 3 dimensions. ...
Modelling fungal growth in heterogeneous soil: analyses of the effect of soil physical structure on water distribution and fungal colonisation
Fungi play a pivital role in soil ecosystems contributing to plant productivity. The underlying soil physical and biological processes responsible for fungal colonistaion are interrelated and, at present, poorly understood. ...
Modeling soil system: complexity under your feet
(European Geosciences Union/Copernicus Publications, 2011)
Observer-dependent variability of the thresholding step in the quantitative analysis of soil images and X-ray microtomography data
For the investigation of many geometrical features of soils, computer-assisted image analysis has become a method of choice over the last few decades. This analysis involves numerous steps, regarding which subjective ...
Modelling and quantifying the effect of heterogeneity in soil physical conditions on fungal growth
(Copernicus Publications, 2010)
Despite the importance of fungi in soil ecosystem services, a theoretical framework that links soil management strategies with fungal ecology is still lacking. One of the key challenges is to understand how the complex ...