######The data file contains the following sheets:

- BloodCoverage&HatchingParameter: Data used to examine the correlation between egg blood coverage and several parameters of reproductive success during the years 2012-2016
- ExperimentToReduceFlea#: Data used to investigate the effectiveness of microwaving nests on adult flea and flea larvae numbers
- ExperimentalEffectNestParameter: Data used to investigate experimental effects on several parameters of reproductive success
- Total#ofMovements: Data used to examine whether experimental groups differed in the total number of movements made by the geese as an indication for irritation
- #Absences_per_day: Data used to find out whether the experimental groups differed in the number of absences per day 
- AbsenceTime_per_Day: Data used to investigate whether the experimental groups differed in the absence time per day
- Preening&NestMaintenance: Data used to investigate whether there was a difference between the experimental groups in anti-parasite related behaviours: we examined the probability that the detected behaviour was preening or nest maintenance
- Nest_Temperature: Data used to investigate experimental effects on daily average nest temperature and nest temperature fluctuations (in degrees Celsius)

####### Meaning of the column names in each datafile:

##sheet: BloodCoverage&HatchingParameter
# columns:
photo: a unique id for each photo used to estimate blood coverage
datephoto: date when the photo of the nest was taken 
island: island on which the nest was located (PH = Prins Heinrichya, SH = Storholmen)
year: the year the data were collected
nest: yearly unique nest id
success: 0 = no hatch, 1 = successful hatch
hatchlings: the number of hatchlings encountered in the nest during nest checks
not_hatchlings: the number of eggs not seen as hatchlings  
blood_coverage: estimated egg blood coverage 
clutch_size: the maximum number of eggs in the nest during at least two subsequent visits 
eggspredated_breeding: the number of eggs that were predated during breeding (partial predation)
eggsnotpred: the number of eggs that were not predated during breeding

##sheet: ExperimentToReduceFlea#
# columns:
nest: unique nest id
flea: the number of adult fleas in the nest sample
larvae: the number of flea larvae in the nest sample
nestmass_dry: dry mass of the nest sample
treatment: co = control nests, ex = flea-reduced nests
sample_date: date when the nest was sampled
days_after_exp: sampling moment; with 0 being the sampling moment just before the experiment, and 2 & 24 being 2 & 24 days after the experiment

##sheet: ExperimentalEffectNestParameter
# columns:
nest: unique nest id
treatment: co = control nests, ex = flea-reduced nests
success: 0 = no hatch, 1 = successful hatch
blood_coverage: estimated egg blood coverage 
hatchlings: the number of hatchlings encountered in the nest during nest checks
not_hatchlings: the number of eggs not seen as hatchlings
eggspredated_breeding: the number of eggs that were predated during breeding (partial predation) 
eggsnotpred: the number of eggs that were not predated during breeding 
hatchafterexp: the number of days after the experiment when nests successfully hatched

##sheet: Total#ofMovements
# columns: 
treatment: co = control nests, ex = flea-reduced nests
nest: unique nest id
days_since_exp: number of days before/after the experiment
count: the total number of photos taken of control and flea-reduced nests per day (irrespective of photo quality) 

##sheet: #Absences_per_day
# columns: 
nest: unique nest id
days_since_exp: number of days before/after the experiment
treatment: co = control nests, ex = flea-reduced nests
CountOfrecess_num: the summed number of absences per nest per day

##sheet: AbsenceTime_per_Day
# columns:
nest: unique nest id
days_since_exp: number of days before/after the experiment
treatment: co = control nests, ex = flea-reduced nests
tot_time_away: time absent; the summed time the female was absent in seconds per day

##sheet: Preening&NestMaintenance   
# columns:
ID: a unique id for the data record
datum: date on which the photo was taken
time: time when photo was taken
nest_maintenance: female is on her nest with her bill in the nest material, often also her entire head is in the nest; 1 = presence of this behaviour, 0 = absence of this behaviour
preening: female is on her nest preening her feathers (bill in feathers); 1 = presence of this behaviour, 0 = absence of this behaviour
nest: unique nest id
days_since_exp: number of days before/after the experiment
treatment: co = control nests, ex = flea-reduced nests

##sheet: Nest_Temperature
# columns: 
nest: unique nest id
datum: date on which the measurement was done
treatment: co = control nests, ex = flea-reduced nests
AvgOftemp: Average daily temperature per nest
StDevOftemp: Standard variation in temperature per nest
days_after_exp: number of days before/after the experiment
