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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

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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