IsoriX: CalibDataBat – R documentation

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CalibDataBat

Calibration dataset for bat species

Description

This dataset contains hydrogen delta values of fur keratin from 6 sedentary bat species. It corresponds to the combination of several studies as detailed in Voigt & Lenhert 2019. This is the dataset used in Courtiol et al. 2019. The data can be used as an example to fit a calibration model using the function calibfit.

Format

A dataframe with 335 observations on 7 variables:

[, 1]	site_ID	(`Factor`)	Identification of the sampling site
[, 2]	long	(`numeric`)	Longitude coordinate [decimal degrees]
[, 3]	lat	(`numeric`)	Latitude coordinate [decimal degrees]
[, 4]	elev	(`numeric`)	Elevation asl [m]
[, 5]	sample_ID	(`Factor`)	Identification of the sampled animal
[, 6]	species	(`Factor`)	A code for the species
[, 7]	sample_value	(`numeric`)	Hydrogen delta value of the tissue

Details

Users who wish to use their own dataset for calibration should create a dataframe of similar structure than this one (only the column 'species' can be dropped). The columns should possess the same names as the ones described above. If the elevation is unknown at the sampling sites, elevation information can be extracted from a high resolution elevation raster using the function extract as shown in the example of CalibDataBat2.

References

Voigt CC & Lehnert L (2019). Tracking of movements of terrestrial mammals using stable isotopes. In Hobson KA, Wassenaar LI (eds.), Tracking Animal Migration with Stable Isotopes, second edition. Academic Press, London.

Courtiol A, Rousset F, Rohwäder M, Soto DX, Lehnert L, Voigt CC, Hobson KA, Wassenaar LI, Kramer-Schadt S (2019). Isoscape computation and inference of spatial origins with mixed models using the R package IsoriX. In Hobson KA, Wassenaar LI (eds.), Tracking Animal Migration with Stable Isotopes, second edition. Academic Press, London.

Examples

head(CalibDataBat)
str(CalibDataBat)

IsoriX

Isoscape Computation and Inference of Spatial Origins using Mixed Models

v0.8.2

GPL (>= 2)

Authors

Alexandre Courtiol [aut, cre] (<https://orcid.org/0000-0003-0637-2959>), François Rousset [aut] (<https://orcid.org/0000-0003-4670-0371>), Marie-Sophie Rohwaeder [aut], Stephanie Kramer-Schadt [aut] (<https://orcid.org/0000-0002-9269-4446>)

Initial release