# Den attendance by Arctic foxes experiencing 10 years of increasing tourism  

Ester Rut Unnsteinsdóttir, Borgný Katrínardóttir, Bruce J. McAdam


## Description of the data and file structure

There are two CSV files.  Both can be loaded into R
foxData <- read.csv("den_attendance_by_arctic_foxes_experiencing_increasing_tourism_foxData.csv", 
                    stringsAsFactors=TRUE)
foxDataMF <- read.csv("den_attendance_by_arctic_foxes_experiencing_increasing_tourism_foxDataMF.csv", 
                      stringsAsFactors=TRUE)

See the paper for description, and supplementary information for analysis code.

foxData has one row per observation of a fox den for a 4 hour duration (or shorter).
Variables in foxData
 - year : numeric, year
 - yearSince2008 : numeric, year rescaled so 2008 becomes year 0
 - denID : character, identifier for den
 - observationDay : numeric, day on which observation took place (1-5 within the observed period)
 - timePeriodOfDay : character, time of day (period1 is 10:00 to 14:00, 2 is 14:00 to 18:00, 3 is 18:00 to 22:00)
 - observationDurationMins : numeric, duration of observation (up to 240 minutes)
 - logObservationTime  : numeric, log of above
 - foggy : logical, TRUE if observation affected by fog
 - countVisitsMale : numeric, count of visits by male parent fox
 - countFeedingMale : numeric, count of visits by male parent fox with food
 - countVisitsFemale : numeric, as above female
 - countFeedingFemale : numeric, as above female
 - countNursing : numeric, count of visits by female parent fox to nurse cubs
 - countTourists : numeric, count of unique individual tourists in the area near den
 - touristDurationMins : numeric, duration of time within the period at least one tourist was present
 - countTouristArrivalEvents : numeric, count of events at which one or more tourist arrived in area (also add 1 if tourists present at start of observation period)

foxDataMF is one row for each parent, per observation of a fox den (twice as many rows as foxData)
Most variables as above.
Variables in foxDataMF
 - year 
 - yearSince2008 
 - denID 
 - observationDay 
 - timePeriodOfDay 
 - observationDurationMins 
 - logObservationTime 
 - foggy 
 - sex : character, sex of the parent that this row refers to
 - countVisits : numeric, count of visits by this parent fox
 - countFeeding : numeric, count of visits by this parent fox with food
 - countTourists 
 - touristDurationMins 
 - countTouristArrivalEvents