data_kestrel: Data for kestrels from Switzerland, 2002-2016

Description Usage Format Source References Examples

Description

The data sets for kestrels (Falco tinnunculus) were collected between 2002 and 2016 in the north-western quadrant of Switzerland.

They comprise breeding bird counts from a monitoring program and from the breeding bird atlas, and dead-recoveries of ringed individuals.

Usage

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Format

kestrel is a list with 4 components:

landData

landscape data, a data frame with rows for 15,734 quadrats (1 x 1km) in the study area and the following columns:

  • x and y : the coordinates of the center of the quadrat.

  • elevation : mean elevation of the quadrat (m).

  • lakes : proportion of the quadrat covered by water.

mhbData

data from Swiss Breeding Bird Monitoring (MHB, Schmid et al., 2004) for 120 quadrats in the study area, a list with the following components:

  • x and y : the coordinates of the center of the quadrat.

  • tcount : a quadrats x years matrix, the annual total count of kestrels.

atlasData

data from the Swiss atlas survey (Knaus et al., 2018) for 574 atlas quadrats in the study area, a list with the following components:

  • x and y : the coordinates of the center of the quadrat.

  • year : the year of the survey, 2013-2015.

  • count : a quadrats x surveys matrix, the count of kestrels in the quadrat for up to 3 surveys; quadrats with only 2 surveys have NA in the third column.

drData

dead-recovery data from a total of 24,561 kestrels ringed at a nest-box in one of 7 ringing areas in the study area (Fay et al., 2019), a list with the following components:

  • site : a matrix with 24,561 rows and columns for site ID and mean x and y coordinates of the nest-boxes at the site.

  • deadrecovery : an individual x year (2002-2016) matrix with 1 for the occasions of initial capture and dead recovery, 0 otherwise.

  • age : a length 24,561 vector with the age ("juv" or "ad") of ringing.

Source

Swiss Ornithological Institute

References

Fay, R., Michler, S., Laesser, J., Schaub, M. (2019) Integrated population model reveals that kestrels breeding in nest boxes operate as a source population. Ecography 42, 2122-2131.

Knaus, P., Antoniazza, S., Wechsler, S., Guelat, J., Kéry, M., Strebel, N., Sattler, T. (2018) Schweizer Brutvogelatlas 2013-2016. Verbreitung und Bestandsentwicklung der Vögel in der Schweiz und im Fürstentum Liechtenstein, Sempach.

Schaub, M., Kéry, M. (2022) Integrated Population Models, Academic Press. chapter 20.

Schmid, H., Zbinden, N., Keller, V. (2004) Überwachung der Bestandsentwicklung häufiger Brutvögel in der Schweiz. Schweizerische Vogelwarte, Sempach.

Examples

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