| crossbill {unmarked} | R 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.
idPlot ID
eleElevation
forestPercent forest cover
surveysa numeric vector
det991Detection data for 1999, survey 1
det992Detection data for 1999, survey 2
det993Detection data for 1999, survey 3
det001Detection data for 2000, survey 1
det002a numeric vector
det003a numeric vector
det011a numeric vector
det012a numeric vector
det013a numeric vector
det021a numeric vector
det022a numeric vector
det023a numeric vector
det031a numeric vector
det032a numeric vector
det033a numeric vector
det041a numeric vector
det042a numeric vector
det043a numeric vector
det051a numeric vector
det052a numeric vector
det053a numeric vector
det061a numeric vector
det062a numeric vector
det063Detection data for 2006, survey 3
det071Detection data for 2007, survey 1
det072Detection data for 2007, survey 2
det073Detection data for 2007, survey 3
date991Day of the season for 1999, survey 1
date992Day of the season for 1999, survey 2
date993Day of the season for 1999, survey 3
date001Day of the season for 2000, survey 1
date002a numeric vector
date003a numeric vector
date011a numeric vector
date012a numeric vector
date013a numeric vector
date021a numeric vector
date022a numeric vector
date023a numeric vector
date031a numeric vector
date032a numeric vector
date033a numeric vector
date041a numeric vector
date042a numeric vector
date043a numeric vector
date051a numeric vector
date052a numeric vector
date053a numeric vector
date061a numeric vector
date062a numeric vector
date063a numeric vector
date071a numeric vector
date072a numeric vector
date073Day 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)