teal: Teal (Anas crecca) Ring Recovery Dataset

In adehabitat: Analysis of Habitat Selection by Animals

Description

This dataset describes the location and date of recovery of 800 teal ringed in Camargue, southern France between January 1952 and February 1978 using standard dabbling duck funnel traps hidden in the vegetation.

Usage

data(teal)

Format

The following variables are given for each recovery:

x

a numeric vector giving the longitude of the recovery

y

a numeric vector giving the latitude of the recovery

date

a vector of class POSIXct containing the date of recovery. Actually, only the day and month have been indicated. The year of recovery has been set to 1900 or 1901, and should not be taken into account in the analysis.

Details

The Camargue teal ringing program led to the recovery of 9,114 teals after the ringing of 59,187 birds. These 800 recoveries of this dataset are a subsample of the 4,652 birds recovered during the first year following ringing. Note that both the coordinates and the date have been jittered to preserve copyright on the data.

Source

La Tour du Valat. A research centre for the conservation of Mediterranean wetlands. Le Sambuc - 13200 Arles, France. http://en.tourduvalat.org/

Examples

data(teal)

plot(teal[,1:2], asp=1,
     xlab="longitude", ylab="latitude",
     main="Capture site (red) and recoveries")

points(attr(teal, "CaptureSite"), pch=16,
       cex=2, col="red")

Example output

Loading required package: ade4
Loading required package: tkrplot
Loading required package: tcltk
Loading required package: shapefiles
Loading required package: foreign

Attaching package: 'shapefiles'

The following objects are masked from 'package:foreign':

    read.dbf, write.dbf

Loading required package: sp

************************************************
************************************************
THE PACKAGE adehabitat IS NOW DEPRECATED!!!!!!!
 It is dangerous to use it, as bugs will no longer be corrected.
It is now recommended to use the packages adehabitatMA, adehabitatLT, adehabitatHR, and adehabitatHS.
These 4 packages are the future of adehabitat.
 They have a vignette explaining in detail how they can be used.
They implement more methods than adehabitat
They are based on the more common and more clever spatial classes implemented in sp.
Bugs are corrected frequently.
Really, avoid to use the classical adehabitat, unless you have a very good reason for it.

*****THIS IS THE VERY LAST WARNING*****
 This is the last version of adehabitat submitted to CRAN (at the time of writing: 2015-03-27).
 THE NEXT VERSION OF adehabitat WILL JUST BE A VIRTUAL PACKAGE LOADING ALL THE PACKAGES DESCRIBED ABOVE.

Warning messages:
1: no DISPLAY variable so Tk is not available 
2: loading Rplot failed 

adehabitat documentation built on Jan. 28, 2018, 5:02 p.m.