Annotated data of wild reindeer in Norway, prepared for step-selection analysis.

A dataset containing GPS positions for wild reindeer (Rangifer tarandus tarandus) in Setesdal Austhei management area, southern Norway, organized in a use-availability design for step-selection analysis (SSA). It includes data from 9 female individuals collected between 2007 and 2010. The coordinates are presented in coordinate reference system ETRS89/UTM 33N (EPSG:25833). The data set was regularized with 3h data and 10 random steps were created for each used step. It was then annotated with rasters on the zone of influence of roads and cabins with radii 1000 - 3000, both at the start and the end point of a step.

For more information on the original data, see ?reindeer.

Usage

data(reindeer_ssf)

Format

A data frame with 31,735 rows and 28 variables:

animal_year_id

Unique individual-year identifier, used as the sample unit (stratum) in the step-selection analysis.

original_animal_id

Animal name assigned at capture.

sex

Sex of the individual animal.

burst_

Identifier of a continuous tracking burst (uninterrupted sequence of GPS fixes for an individual).

t1_

Timestamp at the start of the step, in UTC.

t2_

Timestamp at the end of the step, in UTC.

dt_

Time difference between t1_ and t2_.

x1_

UTM easting coordinate at the start of the step, in ETRS89/UTM 33N.

y1_

UTM northing coordinate at the start of the step, in ETRS89/UTM 33N.

x2_

UTM easting coordinate at the end of the step, in ETRS89/UTM 33N.

y2_

UTM northing coordinate at the end of the step, in ETRS89/UTM 33N.

sl_

Step length: Euclidean distance (m) between the start and end of the step.

ta_

Turning angle (radians) between the current and previous step direction.

case_

Case indicator in the use-availability design; 1 = used step, 0 = random step.

step_id_

Step identifier within each burst.

step_id

Global step identifier across all bursts and individuals.

start_cabins1000

Zone of influence of cabins (cumulative) at the start of the step, with exponential decay shape and radius 1000 m.

start_cabins2000

Zone of influence of cabins (cumulative) at the start of the step, with exponential decay shape and radius 2000 m.

start_cabins3000

Zone of influence of cabins (cumulative) at the start of the step, with exponential decay shape and radius 3000 m.

start_roads1000

Zone of influence of roads (cumulative) at the start of the step, with exponential decay shape and radius 1000 m.

start_roads2000

Zone of influence of roads (cumulative) at the start of the step, with exponential decay shape and radius 2000 m.

start_roads3000

Zone of influence of roads (cumulative) at the start of the step, with exponential decay shape and radius 3000 m.

end_cabins1000

Zone of influence of cabins (cumulative) at the end of the step, with exponential decay shape and radius 1000 m.

end_cabins2000

Zone of influence of cabins (cumulative) at the end of the step, with exponential decay shape and radius 2000 m.

end_cabins3000

Zone of influence of cabins (cumulative) at the end of the step, with exponential decay shape and radius 3000 m.

end_roads1000

Zone of influence of roads (cumulative) at the end of the step, with exponential decay shape and radius 1000 m.

end_roads2000

Zone of influence of roads (cumulative) at the end of the step, with exponential decay shape and radius 2000 m.

end_roads3000

Zone of influence of roads (cumulative) at the end of the step, with exponential decay shape and radius 3000 m.

Source

Panzacchi, M., Van Moorter, B., Strand, O., Loe, L. E., & Reimers, E. (2015). Searching for the fundamental niche using individual-based habitat selection modelling across populations. Ecography, 38(7), 659–669. https://doi.org/10.1111/ecog.01075

Cagnacci, F., Focardi, S., Ghisla, A., van Moorter, B., Merrill, E.H., Gurarie, E., Heurich, M., Mysterud, A., Linnell, J., Panzacchi, M., May, R., Nygård, T., Rolandsen, C. and Hebblewhite, M. (2016), How many routes lead to migration? Comparison of methods to assess and characterize migratory movements. J Anim Ecol, 85: 54-68. https://doi.org/10.1111/1365-2656.12449.

Examples

library(tibble)
data("reindeer_ssf")