sExtinct (version 1.1)

sExtinct-package: sExtinct

Description

sExtinct combines several sighting based estimators of historical extinction.

Details

Package:

sExtinct

Type:

Package

Version:

1.1

Date:

2012-10-25

License:

GPL-2 | GPL-3

This package brings together several sighting-based estimators of species loss. These estimators use historical sighting events to calculate the probability of a species persistance. The esitimators can be run simultaneously (using run.all), or individually (see help files). Care should be taken if using low level functions (functions ending in .fun). New users should use intermediate level functions (Robson1964, Solow1993.eq2, OLE) which correct data before running the estimators.

This is a work in progress, and additional estimators are sought. Please contact author (see below).

References

Burgman, M. A., Grimson, R. C., & Ferson, S. (1995). Inferring Threat from Scientific Collections. Conservation Biology, 9(4), 923-928.

Roberts, D. L., & Solow, A. R. (2003). Flightless birds: When did the dodo become extinct? Nature, 426(6964), 245.

Robson, D. S., & Whitlock, J. H. (1964). Estimation of a Truncation Point. Biometrika, 31(1/2), 33-39.

Solow. (1993). Inferring extinction from sighting data. Ecology, 74(3), 962-964. Solow. (2005). Inferring extinction from a sighting record. Mathematical Biosciences, 195(1), 47-55.

Strauss, D., & Sadler, P. M. (1989). Classical confidence intervals and Bayesian probability estimates for ends of local taxon ranges. Mathematical Geology, 21(4), 411-427.

See Also

run.all Robson1964 Solow1993.eq2 OLE

Examples

data(example.data)
run.all(example.data, 0.05, 2012, FALSE, FALSE)