crossbill: Detection/non-detection data on the European crossbill...

crossbillR Documentation

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)

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

data(crossbill)
str(crossbill)

unmarked documentation built on Sept. 11, 2024, 8:28 p.m.