Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 125-132 |
| Number of pages | 8 |
| Journal | New Phytologist |
| Volume | 163 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2004 |
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Empirical evidence of spatial thresholds to control invasion of fungal parasites and saprotrophs. / Otten, Wilfred; Bailey, Douglas J.; Gilligan, Christopher A.
In: New Phytologist, Vol. 163, No. 1, 2004, p. 125-132.Research output: Contribution to journal › Article
TY - JOUR
T1 - Empirical evidence of spatial thresholds to control invasion of fungal parasites and saprotrophs
AU - Otten, Wilfred
AU - Bailey, Douglas J.
AU - Gilligan, Christopher A.
PY - 2004
Y1 - 2004
N2 - 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 examine the spread of a fungus through a population of discrete sites on a lattice, using replicable, yet stochastically variable experimental microcosms. • We combine epidemiological concepts to summarise fungal growth dynamics with percolation theory to derive and test the following hypotheses: first fungal invasion into a population of susceptible sites on a lattice can be stopped by a threshold proportion of randomly removed sites; second random removal of susceptible sites from a population introduces a shield which can prevent invasion of unprotected sites; and third the rate at which a susceptible population is invaded reduces with increasing number of randomly protected sites. • The broader consequences of thresholds for fungal invasion in natural and agricultural systems are discussed briefly.
AB - 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 examine the spread of a fungus through a population of discrete sites on a lattice, using replicable, yet stochastically variable experimental microcosms. • We combine epidemiological concepts to summarise fungal growth dynamics with percolation theory to derive and test the following hypotheses: first fungal invasion into a population of susceptible sites on a lattice can be stopped by a threshold proportion of randomly removed sites; second random removal of susceptible sites from a population introduces a shield which can prevent invasion of unprotected sites; and third the rate at which a susceptible population is invaded reduces with increasing number of randomly protected sites. • The broader consequences of thresholds for fungal invasion in natural and agricultural systems are discussed briefly.
U2 - 10.1111/j.1469-8137.2004.01086.x
DO - 10.1111/j.1469-8137.2004.01086.x
M3 - Article
VL - 163
SP - 125
EP - 132
JO - New Phytologist
JF - New Phytologist
SN - 0028-646X
IS - 1
ER -