Abstract
A model is constructed in which seed production by individual annual plants within a population is a function of the number and species of individuals within each of several concentric neighborhoods. The effect of increasing competition is to reduce seed production in a hyperbolic fashion, and the contribution of each individual to this effect is in inverse proportion to the square of its distance from the test individual. A simple monospecific version of this model was tested on populations of 2 annual knotweeds. A least-squares fit accounted for >80% of variation in seed production. This model provides an alternative to density in describing plant populations. A monospecific aggregated version can be seen as an extension of the inverse-yield law.-from Author
| Original language | English |
|---|---|
| Journal | Ecology |
| Volume | 63 |
| Issue number | 5 |
| Pages (from-to) | 1237-1241 |
| Number of pages | 5 |
| ISSN | 0012-9658 |
| DOIs | |
| Publication status | Published - 1 Jan 1982 |