Stochastic spatial models of host-pathogen and host-mutualist interactions

Nicolas Lanchier, C. Neuhauser

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Mutualists and pathogens, collectively called symbionts, are ubiquitous in plant communities. While some symbionts are highly host-specific, others associate with multiple hosts. The outcomes of multispecies host-symbiont interactions with different degrees of specificity are difficult to predict at this point due to a lack of a general conceptual framework. Complicating our predictive power is the fact that plant populations are spatially explicit, and we know from past research that explicit space can profoundly alter plant-plant interactions. We introduce a spatially explicit, stochastic model to investigate the role of explicit space and host-specificity in multispecies host-symbiont interactions. We find that in our model, pathogens can significantly alter the spatial structure of plant communities, promoting coexistence, whereas mutualists appear to have only a limited effect. Effects are more pronounced the more host-specific symbionts are.

Original languageEnglish (US)
Pages (from-to)448-474
Number of pages27
JournalAnnals of Applied Probability
Volume16
Issue number1
DOIs
StatePublished - Feb 2006
Externally publishedYes

Fingerprint

Spatial Model
Stochastic Model
Interaction
Specificity
Spatial Structure
Coexistence
Predict
Pathogens
Spatial model
Community
Model

Keywords

  • Contact process
  • Epidemic models
  • Mutualist
  • Pathogen
  • Voter model

ASJC Scopus subject areas

  • Mathematics(all)
  • Statistics and Probability

Cite this

Stochastic spatial models of host-pathogen and host-mutualist interactions. / Lanchier, Nicolas; Neuhauser, C.

In: Annals of Applied Probability, Vol. 16, No. 1, 02.2006, p. 448-474.

Research output: Contribution to journalArticle

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