# A resource-based model of alternative stable states

### Description

A model of floating vs. submerged plant dominance in shallow aquatic
systems, after Scheffeer *et al*. (2003). For use with `ode`

in the `deSolve`

package. Floating plants are better competitors for light, as long as submerged plants cannot drive down nitrogen levels.

### Usage

1 |

### Arguments

`t` |
the time point for a realization of the integration. |

`y` |
the vector of populations, at each time t. |

`p` |
a vector or list containing the necessary parameters. |

### Value

Returns a list of length one which is the vector of the rates of increase (required by `ode`

).

### Author(s)

Hank Stevens <HStevens@muohio.edu>

### References

Scheffer, M., Szabo, S., Gragnani, A., van Nes, E.H., Rinaldi, S.,
Kautsky, N., Norberg, J., Roijackers, R.M.M. and Franken,
R.J.M. (2003) Floating plant dominance as a stable state. *Proceeding of
the National Academy of Sciences, U.S.A.*, **100**, 4040–4045.

Stevens, M.H.H. (2009) *A Primer of Ecology with R*. Use R! Series. Springer.

### See Also

`lvcompg`

, `igp`

### Examples

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