Description Usage Arguments Details Value Note Author(s)
Dialogue box for help setting up a parameter list
enter.parameters(Parameters = NULL)
Optional parameters to use as defaults in clicky box.
Creates a minimal set of parameters necessay to run simulations and analysis. Additional arguments can be added to the outputted list as needed.
|Initial population size||Population size at the start of the simulation|
|Population growth rate||Annual population multiplication rate (Lambda=N_t/N_0)|
|Number of years||Maximum number of years for the simulation|
|Number of types||Types of individuals to treat separately in the population simulation|
|Proportion of population||Proportion of population in each individual-type (e.g. sex ratio)|
|Buffer distance||Minimum distance between movement centers for each type of individual|
|Movement radius|| With
|Proportions of movements within radius||With movement radius, used to define bivariate normal use distribution|
|Truncation||Limits to long-distance movements (proportion of movement distribution to allow)|
|Cell size||Area of grid cell|
|Minimum habitat value||Cutoff value for where individual centers should be located|
|Minimum sampling value||Cutoff for home much habitat must be included in cell to sample|
|Number of visits||Maximum number of visits to each grid cell per year|
For parameters defining movement distribution, estimates may be drawn from either movement studies (e.g., step lengths), home range studies (e.g., minimum convex polygon, kernal estimates), or expert opinion. These parameter estimates should reflect expected movement during the sampling season only. For some species (e.g., a wide-ranging species such as wolverine), an individual may be reasonably expected to potentially visit any location in its home range during the sampling season; however, this is not always expected to be the case.
A parameter list with the following items
Initial population size
Population growth rate
Maximum number of years in the simulation
Proportion of population by type of individual
Distance between individual movement centers for each type of individual
Movement radius for each type of individual
Percent of time within movement radius for each type of individual
Proportion of movement distribution to allow
Area of each grid cell
Minimum value of
map where individual movement centers can be located.
map values above
habitat.cutoff required for a grid cell to be included in sampling
Maximum number of visits per year
Initial detection probability = 1 (perfect detection to established availability)
Please direct all complaints about the damn clicky box to Mike Schwartz
Martha Ellis, Jody Tucker, Mike Schwartz
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