Spatial and temporal dynamics of epidemics of the rust fungus Uromyces valerianae on populations of its host Valeriana salina

  title={Spatial and temporal dynamics of epidemics of the rust fungus Uromyces valerianae on populations of its host Valeriana salina},
  author={Lars Ericson and J. J. Burdon and W. M{\"u}ller},
  journal={Journal of Ecology},
1 Analysis of the dynamics of rust disease caused by Uromyces valerianae in 30 discrete populations of Valeriana salina occurring on an archipelago of small islands in the Gulf of Bothnia, central Sweden, showed strong temporal and spatial effects. 

Infection of Trientalis europaea by the systemic smut fungus Urocystis trientalis: disease incidence, transmission and effects on performance of host ramets

The effects of fungus infection on a natural population of the pseudoannual plant Trientalis europaea were followed for 4 years and it was found that fungus infection negatively influences the population of these plants.

The significance of age, plant density and proximity of young Silene dioica populations on the incidence and prevalence of anther-smut disease (Microbotryum silenes-diocae)

Plant-pathogen interactions are well studied in human-managed systems but are less known in naturals, where they are more susceptible to infection by pathogens.

28‐year temporal sequence of epidemic dynamics in a natural rust–host plant metapopulation

A long‐term study of disease dynamics caused by the rust Uromyces valerianae in 31 discrete populations of Valeriana salina provides a rare opportunity to explore extended temporal patterns in the

Interaction between a lichen and a fungal parasite in a successional community: Implications for conservation

The high disease levels in older stands suggest that conservation programs aiming to sustain the Abrothallus-Ramalina system cannot only focus on preservation of isolated old-growth stands, but also need to incorporate continuous creation of young stands.

Spatial and Temporal Patterns of Rust Infection on Jewelweed (Impatiens capensis)

Rust infection in populations of jewelweed decreased host fitness but increased proportional allocation to CH flowering, potentially increasing the production of resistant offspring by susceptible plants and indicating that disease varies over time and with host density and can affect host fitness and mating system.

The spatial distribution of plant populations, disease dynamics and evolution of resistance

A two-dimensional spatially explicit simulation model was developed in which host-population spacing was modelled by varying the percentage of sites suitable for the host, and the general patterns of disease incidence and prevalence generated in the simulations corresponded well with the patterns observed in natural populations of L. alpina and M. violaceum.

Metapopulation Structure Predicts Population Dynamics in the Cakile maritima–Alternaria brassicicola Host-Pathogen Interaction

Overall, this work shows that the collection of extensive data on host and pathogen population dynamics, in combination with spatially explicit epidemiological modeling, makes it possible to accurately predict disease dynamics—even when there is extreme variability in host population dynamics.

Short‐term epidemic dynamics in the Cakile maritima–Alternaria brassicicola host–pathogen association

Work over an 18-month period involving multiple beach populations of the plant Cakile maritima and its fungal pathogen Alternaria brassicicola along the southeast coast of Australia shows that disease incidence and prevalence vary significantly with plant age, class and distance from the sea, as well as time during the season.

Vertical disease transmission in the Cakile-Alternaria host-pathogen interaction

The findings of this study suggest that vertical transmission is likely to be by far the most important component of disease transmission among separate host populations in this host–pathogen system.

Co‐evolutionary hot and cold spots of selective pressure move in space and time

A long-term study of a host–pathogen metapopulation involving 133–220 separate populations of the wild plant Filipendula ulmaria and its rust pathogen Triphragmium ulmariae shows mark-reducing activity in both host and pathogen populations.



Temporal and Spatial Changes in a Metapopulation of the Rust Pathogen Triphragmium Ulmariae and its Host, Filipendula Ulmaria

The relationship between the density of individuals within populations and disease prevalence showed no density-dependence and the distribution of disease among populations of the metapopulation had a significant spatial component in two of the years, with infected populations being closer together than would be expected by chance.

Local plant populations as ecological islands: the infection of Viscaria vulgaris by the fungus Ustilago violacea

It is suggested that Ustilago acts as a population regulatory factor slowing down the increase and dispersal of local populations of Viscaria after they have reached a certain size.


In contrast, vegetative growth in inoculated populations continued and all measures of reproduction were far greater in the class of highest status than in any other, and there was a seven-fold increase in the contribution of this class to floret production relative to its frequency in the original population.

Theoretical and empirical studies of metapopulations: population and genetic dynamics of the Silene–Ustilago system

The regional population dynamics of the anther-smut Ustilago violacea, a pollinator-transmitted fungal disease, and its plant host Silene alba are investigated, using descriptive, experimental, and theoretical approaches.

Infection by pathogens and population age of host plants.

A significant positive correlation between disease incidence and mean host population density was detected only for the Valeriana-Uromyces system, where the pathogen has an annual cycle, in contrast to the other two pathogens, which are perennial.

Host-pathogen dynamics in a metapopulation context:the ecological and evolutionary consequences of being spatial

It is argued that the relative spatial scales at which hosts and pathogens interact are crucial to understanding the evolution of resistance/virulence structure and plant host-pathogen systems provide ideal models for investigating the evolutionof non-neutral genetic variation in spatial systems.

Host–parasitoid associations in patchy environments

This analysis indicates that heterogeneity is large enough to stabilize dynamics in 9 of 34 published studies, and that density-independent heterogeneity is the main factor in most cases.

Ecological and genetic models of host-pathogen coevolution

A model is presented to analyse the forces that maintain genetic polymorphism in interactions between host plants and their pathogens, showing that ecological and demographic factors, such as birth and death rates, often have a more profound effect on the amount of polymorphism than genetic parameters.

Local adaptation and gene-for-gene coevolution in a metapopulation model

A metapopulation model is developed, taking explicit account of both population densities and gene frequencies, to determine the influence of ecological and genetical parameters on the local adaptation of the parasites and on the spatial distribution of resistance and virulence genes.

Genetic consequences of local population extinction and recolonization.

  • D. Mccauley
  • Biology, Environmental Science
    Trends in ecology & evolution
  • 1991