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crossbill: Detection/non-detection data on the European crossbill (Loxia curvirostra)

Description

267 1-kmsq quadrats were surveyed 3 times per year during 1999-2007.

Usage

data(crossbill)

Arguments

Format

A data frame with 267 observations on the following 58 variables.
id
Plot ID
ele
Elevation
forest
Percent forest cover
surveys
a numeric vector
det991
Detection data for 1999, survey 1
det992
Detection data for 1999, survey 2
det993
Detection data for 1999, survey 3
det001
Detection data for 2000, survey 1
det002
a numeric vector
det003
a numeric vector
det011
a numeric vector
det012
a numeric vector
det013
a numeric vector
det021
a numeric vector
det022
a numeric vector
det023
a numeric vector
det031
a numeric vector
det032
a numeric vector
det033
a numeric vector
det041
a numeric vector
det042
a numeric vector
det043
a numeric vector
det051
a numeric vector
det052
a numeric vector
det053
a numeric vector
det061
a numeric vector
det062
a numeric vector
det063
Detection data for 2006, survey 3
det071
Detection data for 2007, survey 1
det072
Detection data for 2007, survey 2
det073
Detection data for 2007, survey 3
date991
Day of the season for 1999, survey 1
date992
Day of the season for 1999, survey 2
date993
Day of the season for 1999, survey 3
date001
Day of the season for 2000, survey 1
date002
a numeric vector
date003
a numeric vector
date011
a numeric vector
date012
a numeric vector
date013
a numeric vector
date021
a numeric vector
date022
a numeric vector
date023
a numeric vector
date031
a numeric vector
date032
a numeric vector
date033
a numeric vector
date041
a numeric vector
date042
a numeric vector
date043
a numeric vector
date051
a numeric vector
date052
a numeric vector
date053
a numeric vector
date061
a numeric vector
date062
a numeric vector
date063
a numeric vector
date071
a numeric vector
date072
a numeric vector
date073
Day of the season for 2007, survey 3

Source

Schmid, H. N. Zbinden, and V. Keller. 2004. Uberwachung der Bestandsentwicklung haufiger Brutvogel in der Schweiz, Swiss Ornithological Institute Sempach Switzerland

See Also

Switzerland for corresponding covariate data defined for all 1-kmsq pixels in Switzerland. Useful for making species distribution maps.

Examples

Run this code
data(crossbill)
str(crossbill)

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